Document x1GQNNMErDB8vZvMOaDNwm3Zg

P9105908 ###****##*##****#*##***#**####*####******#*****#*********##****##*# K* * THIS IS AN OFF-LINE BIBLIOGRAPHIC CITATION LIST GENERATED BY * #* * MEDLARS II * #* # N.L.M.'S NATIONAL INTERACTIVE RETRIEVAL SERVICE * * * ** a######*####*##****##**#****###**#*****#*****#*******#***#*#**#*#*#***** PVC NUMBER OF CITATIONS PRINTED = 299 THIS SEARCH WAS PERFORMED ON THE T0XLIT65 SORT WAS NOT REQUESTED REQUESTED BY R.N. WHEELER AUGUST 30, 1989 FILE. PLEASE SEND THIS LISTING TO t TIMOTHY J CAWLEY, UNION CARBIDE CORP. 39 OLD RIDGEBURY RD. P2-585 DANBURY, CT 06817-0001 RNW 1765 00009057 PVC PAGE 1 1 SI - CA/096/057642X CC - CA/163005 AU - Bayraktar-Alpmen G ; Gulhan S AD - Eczacilik Fak. Istanbul Univ., Istanbul TI - Studies on antiseptic and preservative solutions stored in plastic and glass containers SO - Doga, Seri C5 VOL ISS 2, 1980,5-12 PT - JOURNAL ARTICLE CY - Turk. LA - TUR CD - DSTID AB - CBAC COPYRIGHTi CHEM ABS Solns. of the antiseptics H202, I, and Rivanol [1837-57-6] and the preservat i ves methylparaben [99-76-3], sorbic acid [110-44-1], benzoic acid [65-85-0], thymol [89-83-8], PhOH [108-95-2], and benzyl ale. [100-51-6] were stored in high- and low-d. polyethylene [9002-88-4], polvlvinyl chloride) [9002-86-2), and amber glass containers, and in Erlenmeyer flasks at room temp., in sunlight, and at 37.degree.. Polyethylene containers were suitable only for the storage of I soln. RN - 65-85-0? 89-83-8! 99-76-3; 100-51-6J 108-95-2; 110-44-1; 1837-57-6; 7553-56-2', 7722-84-1; 9002-86-2; 9002-88-4 EM - 8405 2 SI - CA/097/027797E CC - CA/159000 AU - Dodic S TI - Vinyl chloride and its polymer as a new potential pathogenic factor in modern illness SO - Med. Podmladak; VOL 32, ISS 1, 1980,67-9 PT - JOURNAL ARTICLE CY - Yugoslavia LA - SCR CD - MPODA IS - 0369-1527 AB - CBAC COPYRIGHT! CHEM ABS Review vinyl chloride occupational hazard Cancer vinyl chloride manuf review PVC manuf occupational hazard review Disease occupational PVC chloroethene reviewJDisease In vinyl chloride and poly(vinyl chloride) manufg. workers , in Yugoslavia Occupational{Neoplasm In vinyl chloride and poly(vinyl chloride) manufg. workers, in Yugoslavia RN - 75-01-4; 9002-86-2 EM - 8208 3 SI - CA/096/175629W CC - CA/104003 AU - Hilado CJ AD - Prod. Saf. Corp., Sunnyvale TI - Some relationships between relative toxicity and total and lethal weight loss of polymers SO - Org. Coat. Plast. Chem.J VOL 43,, 1980,297-303 PT - JOURNAL ARTICLE RNW 1766 00009058 PVC PAGE 2 CY - USA ZP - 94087 LA - ENG CD - OCPCD IS - 0161-214X AB - CBAC COPYRIGHT: CHEM ABS Polymers from 4 different groups: the 1st contg. only C> H, and 0; the 2nd contg. Cl; the 3rd N; and the 4th S were exposed to rising temp. (40.degree./min from 200 to 800.degree.) without forced air flow* and the toxicity to mice of the resulting off-gases evaluated in relation to the wt. loss of the polymers. The results indicated that increased thermal stability* as indicated by reduced wt. loss on heating, appears to be accompanied by decreased relative toxicity in the case of polymers from which CO is the principal toxicant evolved. RN - 630-08-0; 9002-81-7; 9002-86-2; 9002-88-4; 9003-56-9; 9008-66-6; 9010-98-4; 9011-14-7; 9016-75-5; 25038-54-4,' 25585-20-0,' 27026-93-3; 32131-17-2; 62238-79-3 EM - 8206 4 SI - CA/096/148144C CC - CA/159002 AU - Ustinov EP ; Bannikov VN ; Kudryavtseva GA TI - Evaluation of work zone air pollution in the production of extruded poly(vinyl chloride) materials SO - Sb. Tr. Vses. N.-i. i Proekt.-konstrukt. In-t Polimer. Stroit. Materialov; ISS 54, 1980,71-5 PT - JOURNAL ARTICLE CY - USSR LA - RUS CO - D3RAP AB - CBAC COPYRIGHT-' CHEM ABS PVC extrusion air pollution;Air pollution In PVC extrusion RN - 9002-86-2 EM - 8205 5 SI - CA/096/128867N CC - CA/159005 AU - Kvasha PN 5 Kordo YP ; Stepanenko TD TI - Problems in the hygienic evaluation of labor conditions in the production of furniture from polyvinylchloride-based polymers SO - Vlyanie Khim. Faktorov Vnesh. Sredy na Zdorov'e Cheloveka, Rostov N/D.; 1980,95-7 PT - JOURNAL ARTICLE CY - USSR LA - RUS CO - D3RAP AB - CBAC COPYRIGHT: CHEM ABS Hygiene PVC furniture manufgjFurniture PVC polymer, hygienic evaluation of working conditions in manuf. of;Hygiene In furniture manufg. from PVC RN - 9002-86-2 EM - 8205 RNW 1767 00009059 PVC PAGE 3 6 SI - CA/096/012939H CC - CA/171012 AU - Okamoto S ; Katayama S Takeya C ; Hayakawa T ; Iwata S TI - Synergism of gamma-ray irradiation and temperature on the deterioration of flame-retardant cables SO - Annu. Rep. Radiat. Cent. Osaka Prefect.; VOL 21, 1980,41-5 PT - JOURNAL ARTICLE CY - Japan LA - ENG CD - ARROA IS - 0474-7879 AB - CBAC COPYRIGHT: CHEM ABS Irradn synergism flame retardant cable Reactor flame retardant cable irradn Power plant nuclear cable irradnjElectric cables Synergism of gamma-irradn. and temp, on deterioration of flame-retardant for nuclear power plantsJGamma ray Synergism of temp, and, on deterioration of flame-retardant cables for nuclear power plantsJNuclear reactors Synergism of gamma-ray irradn. and temp, on deterioration of flame-retardant cables forJRubber Synergism of gamma-ray irradn. and temp, on deterioration of flame-retardant cables contg., at nuclear power plants NeopreneJRubber Synergism of gamma-ray irradn. and temp, on deterioration of flame-retardant cables contg., at nuclear power plants Ethylene-propene RN - 9002-86-2; 9002-88-4 EM - 8204 7 SI - CA/094/133388V AU - Richards RJ ; George G *, Hunt J 5 Tetley TD AD - Dep. Biochem., Univ. Coll., Cardiff TI - The relationship between the hemolytic potential of certain particulates and their reactivity at the lung surface 'in vivo' SO - In Vitro Eff. Miner. Dusts, CProc. Meet.]; 1980,323-32 LA - ENG CD - 44Z2A AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM The hemolytic activity of 9 widely-differing particulates are compared and contrasted with changes they produce in free cell nos., pulmonary surfactant levels, and lung-lavage protein levels following dust instillation or inhalation in the rat. Two particulates (chrysotile and Ca silicate A) are highly hemolytic, 2 dusts (PVC 7 and glass powder) are moderately hemolytic, 3 (fiber glass, amosite, and Ca silicate B) are weakly hemolytic, and latex and Ti02 are virtually nonhemolytic. (12001-29-5 ChrysotileM9002-86-2 PVC 7)(12172-73-5 Amosite) Thus, while hemolysis provides a rapid test system to examine the ability of a particulate to damage cell membranes, it cannot be assumed that dusts with high hemolytic potential will induce extensive changes at the lung surface. Conversely, it cannot be assumed that a particulate with low or no hemolytic activity will produce no effect in the lung. RN - 12001-29-5; 9002-86-2; 12172-73-5; 1344-95-2; 13463-67-7 EM - 8110 RNW 1768 00009060 PVC PAGE 4 m m m m + # -- # 8 SI - CA/093/144743N AU - Sanders AJ TI - Horticultural capillary substrate SO Brit. PATENT NO. 1562182 03/05/80 (Imperial Chemical Industries Ltd. ) LA - ENG AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM A horticultural capillary substrate for use in hydroponics was prepd., comprising a laminate of a water-impermeable sheet and a textile fabric. E.q.t synthetic fibers with a core of polythexamethylene adipamide) and a sheath of poly(epsilon-caprolactam) were woven into a fabric* capable of transporting and retaining an aq. liq.* which was attached to a polyethylene sheet by extrusion laminating. (32131-17-2 Poly(hexamethylene adipamide))(25038-54-4 poly(.epsiIon.-caprolactam ))(9002-88-4 Polyethylene) The laminate may be formed into a trough contg. plant containers* down which nutrient-contg. water can flow. RN - 32131-17-25 25038-54-4; 9002-88-4; 9002-86-2 EM - 8105 9 SI - CA/093/138050T AU - Rachev D ; Markov L AD - Dursh. Inst. Kontrol Lek. Sredstva* Sofia TI - Quantitative determination of lead and zinc in poly(vinyl chloride) blood transfusion systems SO Farmatsiya (Sofia); VOL 30, ISS 2, 1980,6-10 LA - BUL CD FMTYA AB - CBAC COPYRIGHT: CHEM ABS Pb and Zn were detd. quant, in PVC systems by at.-absorption study of aq. autoclave products after 30 min at 120.degree, using cut samples. (9002-86-2 PVC) The amt. of Zn extd. during autoclaving decreased with increasing pH of the extractant at pH 3-4. The method had reproducibility .+-.2X for Zn. RN - 9002-86-2; 7439-92-1; 7440-66-6 EM - 8010 10 SI - CA/092/135366U AU - Wu U ; Arteaga M ; Mlodozeniec AR J Poppers PJ AD - Anesthesiol. Serv. VA Med. Cent.* New York TI - Surface ultrastructure and pressure dynamics of tracheal tube cuffs SO _ J. Biomed. Mater. Res.; VOL 14, ISS 1, 1980,11-21 LA - ENG CD - JBMRB AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM The outer and inner surfaces of 6 com. endotracheal tube cuffs were characterized using SEM and energy dispersive x-ray anal. Lateral tracheal wall pressure (LUP) was measured at various steps of cuff inflation using a mock-trachea system. The surface characteristics of the cuffs varied widely. The surface of the Lanz cuff was relatively smooth but showed a regular array of circular depressions 0.8 mum J* 4T - % % % % k RNW 1769 ii 00009061 PVC PAGE 5 in diam. Uniform spheres also 0.8 mum in diam. were distributed through the thickness of the membrane. The American Hi-Lo cuff surface was also relatively smooth but was covered widely with flakes of material which x-ray showed to be a clay-like substance contg. aluminum* silica* and potassium. The Harlake cuff was covered widely with roughly spherical, 5-mum-diam. particles, probably starch granules. The membrane itself was smooth even at 3000.times.. The Foregger cuff had a rough surface and was covered with the same clav-like particles seen on the American cuff. The inner surface with irregular, uneven areas were surrounded by fissures. The Rusch Armored tube cuff was completely covered by a continuous 2-mum-thick chlorinated coating. The surface was highly convoluted and irregular. The 3 cuff membranes showing relatively smooth surfaces, Lanz, American and Harlake, also produced relatively low LWP at various points of cuff inflation. While there was no data to indicate that cuff surface smoothness correlates with tracheal morbidity, it would seem prudent to select cuffs that produce low LWP's with smooth surfaces for clin. use. RN - 9002-86-2 EM - 8010 11 SI - CA/095/209555R AU - Mollet M ; Puisieux F ; Rasquin B ; Untersinger C AD - Serv. Pharmacotech., Pharm. Cent. Hop., Paris TI - A solution suitable for central parenteral nutrition in premature infants SO - Prog. Clin. Pharm.; VOL 2,, 1980,295 LA - ENG CD - PCPYD AB - CBAC COPYRIGHT: CHEM ABS A soln. contg. glucose 165 g amino acids 18.75 g, Na 29 mmol, Cl 17.25 mmol, K 18.75 mmol, P 330 mg, Ca 360 mg, Mg 93.5 mg, and H20 1000 mL for parenteral feeding of premature infants is prepd. in 2 sep. compartments in PVC bags to prevent Mai Hard reactions. (9002-86-2 PVC) Upon use, the solns. from the 2 compartments are brought together via a 1-way valve. RN - 9002-86-2 EM - 8201 12 SI - CA/093/299780R AU - Haxo HE Jr AD - Matrecon, Inc., Oakland TI - Interaction of selected lining materials with various hazardous wastes - II SO - U. S. Environ. Prot. Agency, Off. Res. Dev., [Rep.l EPA; ISS EPA-600/9-80-010, Disposal Hazard. Waste,, 1980,160-80 LA - ENG CD - XPARD AB - CBAC COPYRIGHT: CHEM ABS Soil, bentonite clays, soil cement, hydraulic asphaltic concrete, asphaltic membranes, and polymer membranes were exposed to hazardous wastes for .ltoreq.3 yr to det. their effectiveness in preventing groundwater pollution at RNW 1770 00009062 PVC PAGE 6 landfills. The wastes included strong acids and bases, oil refinery tank waste, lead waste from gasoline, hydrocarbons, and pesticides. No single material contained all types of waste for this t ime period. Membrane swelling, loss of elongation with time, and permeability of the liner to each specific waste detd. which liner best contained the waste. PN - 9002-86-2; 9002-88-4; 9010-79-1 EM - 8101 13 SI AU AD TI SO LA CD AB RN EM CA/093/225193K Kosiewicz ST Los Alamos Natl. Sci. Lab., Los Alamos Cellulose thermally decomposes at 70.degree.C Thermochim. Acta? VOL 40, ISS 2, 1980,319-26 ENG THACA CBAC COPYRIGHT: CHEM ABS Low-temp, thermal decompn. of radioactive org. wastes during geol. storage was studied. Threshold decompn. temps, for common materials (cellulose, plastic, and rubber) found in Pu labs, were detd., and long-term surveillance expts. were made at 20, 40, and 70.degree.. Thermal decompn. did not, as obsd. by thermogravimetry, occur for any of the materials studied at <150.degree.. Other more sensitive expts. showed that thermal decompn. occurs for cellulose at .apprx.70.degree., and a slight amt. of decompn. may occur at 40.degree.. Some materials may slightly catalyze thermal decompn. at 40.degree.. 9002-84-0; 9002-86-2; 9002-88-4J 9003-07-0; 9004-34-6; 9011-14-7 8101 14 SI - CA/093/224946N AU - Addis V ; Di Felice M ; Scanzi G A0 - Tecno Habitat, Milan TI - Atmospheric pollution problems in the plastic coating process of metal frames SO - AES; VOL 2, ISS 2, 1980,57-63 LA - ITA CD - AESID AB - CBAC COPYRIGHT: CHEM ABS The process of coating PVC over metal is described. Gas fumes and powders escape into the air consisting of tDOP, diisononyl phthalate (DINP), and PVC. (117-81-7 tDOPM28553-12-0 Di(isononyl) phthalate )(9002-86-2 PVC) To purify the emissions, a packed column with back crashing is proposed. RN - 117-81-75 28553-12-0; 9002-86-2 EM - 8101 o V 11 RNW 1771 m 00009063 PVC PAGE 7 15 SI - CA/093/232009H AU - Klos M ; Nowicki P ; Sobecka B AD - Postgrad. Educ. Cent., Mil. Med. Acad., Warsaw TI - The effect of plasticisers of plastic material bags on biochemical and morphological changes of morphotic blood elements SO - Pol. J. Pharmacol. Pharm.; VOL 32, ISS 1, 1980,103-7 LA - ENG CD - PJPPA AB - CBAC COPYRIGHT: CHEM ABS The concn. of di-2-ethylhexyl phthalate (DEHP) was detd. in whole blood, packed red cells, and plasma of the blood collected into blood PVC bags in samples withdrawn immediately after collection and 1, 2, and 3 wks later. (117-81-7 Di-2-ethylhexyl phthalate)(9002-86-2 PVC) ATPase activity and electrolyte (K+ Nat, Mg2+) compn. of erythrocytes were tested and possible morphol. changes were inspected in phase-contrast microscope. (9000-83-3 ATPase) Platelet aggregation induced by ADP, collagen, and adrenaline was also investigated. Blood stored in glass bottles served as a std. The DEHP concns. were similar in samples contained in various bags. Max. DEHP concn. in the whole blood, after 3 wks of storage, attained 52 mug/cm3. ATPase activity was more rapidly depressed in the blood kept in bags instead of glass bottles. Erythrocyte morphol. and results of platelet function tests remained unaffected. RN - 117-81-7; 9002-66-2J 9000-83-3; 7439-95-45 7440-09-75 7440-23-5 EM - 8101 16 SI - CA/093/225660K TI - Artificial blood vessels with antithrombic materials SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 60461 05/07/80 (Toray Industries, Inc.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Medical devices such as artificial, blood vessel having antithrombogenicity were made of heparin-cationic polymer complexes and macromol. components in which the sepd. cationic polymers have microphase structure of 0.05-5 mu diam. and the heparin content was 0.5-50 wt. / of the total. Thus, a soln. of 30 g CH2:CMeC02CH2CH(OH)CH2N+Me3 Cl- in aq. DMF was treated with 30 mg ammonium persulfate and the mixt. heated 16 h at 70.degree, under N to give a cationic polymer soln. which (30 g) was treated with 60 g 15 wt./ PVC in DMF to give a complex with 0.1-1 mu cationic polymer homogeneously dispersed. A tube of 0.7 mm thickness made from the complex was immersed in 5/ aq. heparin Na at 60.degree, for 1 day to give a tube contg. 28/ H20 and 15.3/ heparin with good mech. strength and flexibility. RN - 9002-86-25 9005-49-65 25609-94-3 EM - 8101 RNW 1772 00009064 PVC r PAGE 8 17 SI - CA/093/209542T AU - Boettner EA ; Ball GL AD - Sch. Public Health, Univ. Michigan, Ann Arbor TI - Thermal degradation products from PVC film in food-wrapping operations SO - Am. Ind. Hyg. Assoc. J.5 VOL 41, ISS 7, 1980,513-22 LA - ENG CD - AIHAA AB - CBAC COPYRIGHT! CHEM ABS Hot wire and coal rod cutting devices are used in food wrapping by PVC film in suupermarkets. (9002-86-2 PVC) Emissions, from cutting the PVC film by the hot wire, contained acrolein, C6H6, CO, HCl, PhMe, and plasticiser. (107-02-8 Acrolein)(71-43-2 Benzene)(108-88-3 Toluene) Only plasticiser was detected when the cool rod was used. RN - 9002-86-2J 107-02-8; 71-43-25 108-88-35 77-90-7; 103-23-15 117-81-75 630-08-05 7647-01-0 EM - 8012 18 SI - CA/093/191541E AU - Schmid F 5 Hies V TI - Pyrolysis of organic wastes SO - Magy. Asvanyolaj- Foldgaskiserl. Intez. Kozl.5 VOL 20,, 1980,117-32 LA - HUN CD - MAFKA AB - CBAC COPYRIGHT: CHEM ABS Polyethylene and polypropylene agglomerates, polystyrene, poly(vinyl chloride) (I) powder, and ground rubber were pyrolysed at 380-500.degree.. (9002-88-4 Polyethylene)(9003-07-0 Polypropylene)(9003-53-6 Polystyrene )(9002-86-2 Polyvinylchloride) Polyethylene, polypropylene, and polystyrene yield 72-94/ liq. products and 6-18/ gaseous products, based on the original wt. with hardly any nonvolatile products. The liq. products from pyrolysis of polyethylene and polypropylene were alkanes* alkenes, and arom. hydrocarbons. Polystyrene yielded styrene and alkyl aroms. (100-42-5 Styrene) In the pyrolysis of I, HCl 53-58, liq. (mainly arom. ) hydrocarbons 10, and residue 28-32/ (and a little gas) are formed. Rubber yielded 24-38/ liq. product rich in aroms., some gas, and >40/ residue similar to coke. RN - 9002-88-45 9003-07-05 9003-53-65 9002-86-25 100-42-5 EM - 8012 o 19 SI - CA/093/191537H 0 AU - Norov SK 5 Gureev ES 5 Aronbaev DM AD - Inst. Yad. Fis., Tashkent % TI - Potentiometric determination of nitrate ion in discharges from hydrometallurgical production using a film nitrate electrode SO - Zavod. Lab.5 VOL 46, ISS 4, 1980,303-4 LA - RUS v CD - ZVDLA AB - CBAC COPYRIGHT: CHEM ABS A N03- ion-selective electrode, prepd. from a membrane of dioctyl phthalate-plasticised PVC contg. # c* ;i RNW 1773 % 00009065 PVC PAGE 9 tetradecyl ammonium nitrate as the electrode-active substance, is used with a satd. AgCl ref. electrode and a pH meter. (9002-86-2 PVC)(34719-43-2 Tetradecyl ammonium nitrate) The e.m.f. of the electrode is directly proportional to the log. of the mean ionic activity for 1 .times. 10-4 -1.0M NaN03 or KN03 solns. The electrode response is stable for several days. Large concns. of S042-, C032-, Cl- oxalate and tartrate ions do not interfere, but NaK tartrate must be added to avoid interference from Mo6 + and W6+. RN - 9002-86-25 34719-43-25 7439-98-75 7440-33-75 7732-18-55 14797-55-8 EM - 8012 20 SI - CA/093/210210Q AU - Chuang HY K 5 Mohammad SF 5 Sharma NC 5 Mason RG AD - Coll. Med.* Univ. Utah* Salt Lake City TI - Interaction of human alpha-thrombin with artificial surfaces and reactivity of adsorbed alpha-thrombin SO - J. Biomed. Mater. Res.5 VOL 14, ISS 4, 1980,467-76 LA - ENG CD - JBMRB AB - CBAC COPYRIGHT! CHEM ABS Thrombin adsorbed onto Cuprophane or poly(vinyl chloride) (PVC) was inactive with respect to amidase activity. (9002-04-4 Thrombin)(9002-86-2 Poly(vinyl chloride))(9012-56-0 Amidase) Desorbed thrombin from these two artificial surfaces showed only low amidase activity. However, in the presence of albumin, the surface-bound thrombin appeared to exhibit increased amidase activity. This apparent activity may be due to the action of thrombin displaced from the surfaces by albumin. Thrombin bound to Cuprophane or PVC was capable of reacting with anti thrombin III (AT III) only in the presence of heparin. (9000-94-6 antithrombin III)(9005-49-6 Heparin) On the other hand, AT III bound to Cuprophane or PVC was unable to react with thrombin in either the absence or presence of heparin. Fibrin formation on or at surfaces was demonstrated by phase contrast microscopy when Cuprophane or PVC, pretreated with thrombin and carefully rinsed, was incubated in a fibrinogen soln. This fibrin formation is time dependent and likely is the result of direct interaction of adsorbed thrombin with fibrinogen in soln. Glass, Cuprophane, and PVC pretreated with thrombin attracted more platelets than resp. untreated surfaces. The enhancing effect of adsorbed thrombin on platelet adhesion was similar to the enhancing effect of adsorbed fibrinogen. Thrombin adsorbed onto PVC and crosslinked by glutaraldehyde treatment was shown to be antiqenically active with a 1251-labeled monospecific antithrombin IgG produced in rabbits. No other plasma proteins adsorbed singly or from plasma or serum onto PVC reacted significantly with the anti thrombin IgG prepn. RN - 9002-04-45 9002-86-25 9012-56-05 9000-94-65 9005-49-6 EM - 8012 RNW 1774 r 00009066 PVC PAGE 10 21 SI CA/093/198560U AU - Einhorn IN ; Grunnet ML AD - Flammability Res. Cent., Univ. Utah, Salt Lake City * TI The physiological and toxicological aspects of degradation products produced during the combustion of poly(vinyl chloride) polymers SO Spec. Rep. - Electr. Power Res. Inst. (Palo Alto, Calif,); ISS % EFRI EL-1263, Flammability Solid Polym. Cable Oielectr.,, 1980,3/1-3/47 LA ENG CD - SREID AB -- CBAC COPYRIGHT: CHEM ABS A review and discussion with 53 refs Review PVC combustion toxicity RN - 9002-86-2 EM - 8012 22 SI _ CA/093/192074S AU - Steer PL ; Edwards JV TI - Plastics laminate SO - Brit. UK Pat. Appl. PATENT NO. 2029764 03/26/80 (Kingsdown Medical Consultants Ltd.) LA - ENG AB - CBAC COPYRIGHT: CHEM ABS The title laminate, useful in the manuf. of ostomy appliances comprises a 1st layer of gas-permeable, liq.-impermeable plastic, a 2nd deodorizing layer of active C cloth or matrix-bound C particles* and a 3rd layer of gas-permeable, liq.-impermeable material. The 1st and/or 3rd layers may be manufd. from chem. treated PVC* polyethylene* or an adhesive. (9002-86-2 PVC)(9002-88-4 Polyethylene) The 2nd layer may be manufd. from C-impregnated paper or nonwoven fabric. RN - 9002-86-25 9002-88-4; 7440-44-0 EM - 8012 23 SI - CA/093/173785H AU - Hiroyoshi S TI - Ultrasonic removal of ethylene oxide from surgical goods SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 31419 03/05/80 LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Gases adsorbed by surgical goods were removed by ultrasound. Thus* after disinfection of 500 mg 1 cm long tubes made of soft polyvinyl chloride* silicone* polyurethane* or polypropylene with ethylene oxide (2200 mg/L) the adsorbed ethylene oxide was removed by ultrasonic irradn. (300W, 28 kH2) 5 min/h. (9002-86-2 Polyvinyl chloride )(9003-07-0 Polypropylene)(75-21-8 Ethylene oxide) The concn. of the remaining ethylene oxide after 7 h was 1200 ppm on the polyvinyl chloride, 80 ppm on the silicone, 820 ppm on the polyurethane* and 600 ppm on the polypropylene tubes vs. 2000, 200, 2340, and 1600 ppm, resp.* for the control samples. RN - 9002-86-2J 9003-07-0; 75-21-8 EM - 8011 RNW 1775 u 00009067 PVC PAGE 11 24 SI AU TI SO LA AB RN EM CA/093/173319J Byrne GA ; Aylott RI An concentrator for removing organic materials from aqueous systems Brit. PATENT NO. 1566253 04/30/80 (Inveresk Research Internetional) ENG CBAC COPYRIGHT: CHEM ABS A device for concg. org. materials from water, useful for monitoring pollutant levels in wastewater to be discharged, comprises a housing contg. an org. medium which wets a selectively permeable membrane over one face of the housing and dissolves org. mols. diffusing through the membrane from the water outside the app. For example, a glass housing was fitted with a 44- cm2 Cuprophane (regenerated cellulose) membrane having dry thickness .apprx.20 mu and pore size 0.003 mu and filled with hexane. (110-54-3 Hexane) The app. was placed in the secondary sedimentation tank of a sewage effluent treatment plant. After 5 wk, the hexane had collected 2.1 mug dieldrin and 3.0 mug gamma-BHC (360 mL-vol. app.), whereas typical anal, of water samples gave concns. 0.03-0.13 and 0.42-0.77 mug/L, resp. (60-57-1 Dieldrin)(58-89-9 .gamma.-BHC) 110-54-3; 60-57-15 58-89-9; 56-23-5; 67-66-35 71-43-25 75-09-2; 75-26-35 95-48-75 108-38-3; 108-88-3; 1330-20-75 7440-44-05 7732-18-55 9002-84-05 9002-86-25 9003-00-35 24937-79-9 8011 25 SI - CA/093/173281R TI - Treatment of radioactive wastes SO - Belg. PATENT NO. 880108 03/17/80 (ALKEM G.m.b.H.) LA - FRE AB - CBAC COPYRIGHT: CHEM ABS A method is given for reducing the vol. of radioactive wastes consisting mainly of PVC and other plastics contg. a Pu02-U02 mixt. of .gtoreq.5 g/m3. (9002-86-2 PVC) The wastes are 1st ground to particle size .ltoreq.5 mm. Next sol. particles (.apprx.75/ of the waste) are dissolved in a hot org. solvent (e.g. THF or EtCOMe), the pptd. insol. materials (A) are removed, by centrifuging and filtration, the solvent is recovered by distn., and the radioactive A are encapsulated in a ceramic material for disposal or storage. Plastics recovered from the solvent can be treated like non radioactive plastic wastes. RN - 9002-86-25 1344-57-65 12059-95-9 EM - 8011 26 SI - CA/093/155847A AU - Hariki Y 5 Tateno I 5 Harasawa I TI - Polymer films for preventing dermatitis in celery farmers SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 22642 02/18/80 (Nippon Carbide Industries Co., Inc.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Dermatitis caused by fluorocoumarins in celery was prevented by using polymer film covers to block out RNW 1776 00009068 PVC PAGE 12 radiation of <380 nm. Thus* a polymer compn. contg. PVC 100* dioctyl phthalate as plasticizer 45* Zn stearate as thermal stabilizer 1.0, benzotriazole deriv. (I) as UV absorbent 1.5 wt./> etc., was made into 100 mu-thick film and used to cover the celery to show 0.3/ fungus disease in the crop and no dermatitis occurrence in the farmers, vs. 5.8/ disease and widespread dermatitis with a com. PVC film cover. (9002-86-2 PVC) RN - 9002-86-25 3864-99-15 91-64-5 EM - 8011 27 SI - CA/093/119835M AU - Tominaga S 5 Suzuki S 5 Kikuchi S TI - Oxidation catalyst used in wastewater along with oxidant SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 27075 02/26/80 (Osaka Oxygen Industries * Ltd. ) LA - JFN AB - CBAC COPYRIGHT: CHEM ABS Ni, Mn, and/or Co oxides are fixed with chloro- and/or fluororesin on a support and used along with 03* NaClO* NaBrO* H202* Cl* or KMn04 in the treatment of wastewater. Colitis, Malodor, COD, heavy metal ions, CN-, HCHO and phenols are removed. (50-00-0 Formaldehyde) Thus, 15 and 10 diam. .times. 15 mm long PVC tubes were soaked in 30/ PVC resin in MeCOEt, Ni203 was added to the tube surfaces, and the tubes were aii--dried for 24 h. (9002-86-2 PVC) NaClO decompn. was 90/ after 500 h when ag. NaClO 200 ppm was stirred with the catalyst for 15 min. When wastewater contg. HCHO 100 was mixed with NaClO 1000 ppm 70/ of the HCHO was removed. RN - 50-00-05 9002-86-25 1314-06-35 7681-52-9 EM - 8010 28 SI - CA/093/079241F AU - Takahashi M TI - Rotating aerator SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 28721 02/29/80 LA - JPN AB - CBAC COPYRIGHT: CHEM ABS PVC, saran, nylon, or glass fiber ribbon is fixed on wheels in a radial, spiral, or concentric manner. (9002-86-2 PVC)(9002-85-1 saran) An assembly of the wheels is slowly rotated in wastewater to biol. remove BOO. RN - 9002-86-25 9002-85-1 EM - 8009 29 SI - CA/093/1014630 AU - Solntseva IL 5 Kaplun SI 5 Trukhachev OF 5 Velikii LS AU - Prilutskaya NV AD - Khar'k. Nauchno-Issled. Khim. Farm. Inst., Kharkov TI - Optimization of the formulation of a plastisol made from poly(vinvl chloride) for coating glass and aerosol containers SO - Khim.-Farm. Zh.5 VOL 14, ISS 4, 1980,76-8 LA - RUS CD - KHFZA AB - CBAC COPYRIGHT: CHEM ABS A math, model was derived for the title optimization. Plastisol prepd. from PVC 250, Jioctyl RNW 1777 *1 00009069 PVC PAGE 13 # phthalate 54.75, di-Bu sebacate 40.15* white spirit 42.9, Last K stabiliser 12.7, Ti02 filler 5, tail-oil fatty acids 18 and PEG-400 3.5 g formed a coating with tensile strength 165 g/cm and relative elongation at break 500-600X which was suitable for medicinal packaging. (9002-86-2 PVC) RN - 9002-86-2 EM - 8009 30 SI AU AD TI SO LA CD AB RN EM CA/093/080008S Kaetsu I ; Kumakura M ; Asano M ; Yamada A ; Sakurai Y Takasaki Radi at. Chem. Res. Establ., JAERI, Takasaki Immobilisation of ensymes for medical uses on plastic surfaces by radiation-induced polymerisation at low temperatures J. Biomed. Mater. Res.; VOL 14, ISS 3, 1980,199-210 ENG JBMRB CBAC COPYRIGHT: CHEM ABS The immobilisation of some medically useful ensymes were studied by means of radiation-induced polymn. at -78.degree.. Glucose oxidase and glucose peroxidase were immobilised in the form of thin membranes inside poly(vinyl chloride) tubes and on polyethylene films; these membranes showed considerable activity yield, as well as good activity retention. (9001-37-0 glucose oxidase)(9003-99-0 glucose peroxidase) Two effective methods were adopted to improve the surface properties of the base materials and to facilitate firm immobilisation by coating: i.e. an undercoating method followed by radiation curing of the undercoating and an irradn. grafting method with a monomer. Both were tested with good results. An immobilisation of urokinase was also carried out successfully by similar methods. (9039-53-6 Urokinase) The thrombogenicity of the immobilised urokinase showed a remarkable effect on thrombus formation. 9001-37-0; 9003-99-0; 9039-53-65 9002-86-25 9002-88-45 25249-16-55 57619-91-75 74256-02-3; 74256-03-4 8009 31 SI AU AD TI SO LA CD AB CA/093/062280V Bailey AV ; Boudreaux GJ ; Sumrell G South. Reg. Res. Cent., USDA, New Orleans Preparation of some fatty glycolic acid derivatives and screening for antimicrobial activity J. Am. Oil Chem. Soc.5 VOL 57, ISS 4, 1980,139-41 ENG JAOCA CBAC COPYRIGHT: CHEM ABS Nine glycolic acid derivs. were prepd. and screened as primary plasticisers for PVC and for antimicrobial activity. (74275-77-7 PVC) Two types of compds. were represented: (a) those with a Me or Et ester grouping at the carboxyl function of glycolic acid and a fatty acyl group at the hydroxyl function; and (b) those with 3 acyl groups attached at the functions of the amide, resulting from the reaction of glycolic acid and diethanolamine. (111-42-2 Diethanolamine) None of the compds. was compatible with PVC at the 35'/. level of UL,,_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ RNW 1778 00009070 PVC PAGE 14 incorporation, and the contpds. were not further evaluated as plasticisers. They were screened for antimicrobial activity against Staphylococcus aureus, Escherichia coli, Candida utilis, and Penici11ium. Six of the compds. inhibited two or more of the test organisms. Bis(carbomethoxymethyl )adipate was the most active compd. (74275-80-2 Bis(carbomethoxymethyl)adipate) RN - 74275-77-7; 111-42-2; 74275-80-2; 79-14-1; 96-35-5; 112-67-4*, 764-85-2J 9002-86-2J 17409-41-55 36557-00-3! 74275-78-8; 74275-79-9? 74275-81-3! 74275-82-4; 74275-83-5! 74275-84-6 EM - 8009 32 SI AU AD TI SO LA CD AB RN EM CA/095/191849C Miyata K ; Miyazaki H ; Mizuno R ; Ohtsuka K Tokai Works, Power React. Nucl. Fuel Dev. Corp., Tokai Acid digestion of chlorine-containing wastes. II. Engineering tests of the pilot plant Tokai Works Annu. Prog. Rep.; ISS PNCT831-80-01,, 1980,106-15 ENG TWARD CBAC COPYRIGHT: CHEM ABS Results obtained from the pilot plant 200-L digestor for the acid digestion of Cl-contg. solid waste (org. chlorides, mainly polytvinyl chloride) and chloroprene) from the Pu Fuel Fabrication Facility of PNC are discussed. The poly(vinyl chloride) oxidn. by HN03 and H2S04, org. material accumulation in the digester, and offgas compn. are considered. 7664-93-9! 7697-37-2! 9002-86-2 8112 33 SI - CA/095/181818C AU - Hilado CJ ! Cumming HJ 5 Casey CJ AD - San Francisco l)niv. San Francisco TI - Relative toxicity of pyrolvsis gases from materials: chemical structure, char yield, and HC value SO - Kasai; VOL 127,, 1980,6-22 LA - JPN CD - KASID AB - CBAC COPYRIGHT: CHEM ABS Toxicity of pyrolysis gases from 97 polymer materials was detd. by a method described previously (C.J. Hilado, et al. , 1978). The HC value (flammability of mixts. of combustible gases) (C. J. Hilado and H. J. Cumming, 1977) decreased with increasing char yield. Based on time required for causing mortality, the toxicity of pyrolysis gases decreased with increasing char yield. This appeared to be due to a decreased CO prodn. when the char yield was increased. For polymers contg. S or N, the toxicity of pyrolysis gases increased with increasing char yield, indicating that CO was not responsible for the toxicity. RN - 80-05-7! 541-59-3; 9002-86-2*. 9002-88-4! 9003-07-0! 9003-53-6! 9003-56-9? 9008-66-65 9011-14-7; 25014-12-4! 25038-54-4; 32131-17-2J 79586-05-3J 79586-06-4 EM - 8112 RNW 1779 00009071 PVC PAGE 15 34 SI AU AD TI SO LA CD AB RN EM CA/095/102177S Kabrt L > Chakraborti D ; Sucha L Dap. Anal. Chem., Prague Inst. Chem. Technol.> Prague Determination of fluorides in atmosphere. III. Applicability of sampling devices designed for weekly replacement of the absorption solutions Sb. Vys. Sk. Chem.-Technol. Prase* Anal. Chem.; VOL H 15* 1980,129-38 ENG SVSAB CBAC COPYRIGHT: CHEM ABS Air concns. of 0.4-24 mug F-/L .+-. 5X were detd. continuously with weekly changes of the absorption solns. using modified Aeromat and SF 8 sampling devices. In the Aeromat app.* the glass parts that contacted the air were replaced by Teflon and polytvinyl chloride) parts* but glass flasks were still used to contain alk. absorption soln. (9002-84-0 Teflon )(9002-86-2 PolyCvinyl chloride)) 9002-84-0; 9002-86-2; 7664-39-3J 16984-48-8 8110 35 SI - CA/095/085701P AU - Aisaka K J Matsuzaki J ; Hirama Y ; Yoshizawa T ; Miyoshi H AD - Chiba Prefect. Lab. Water Pollution TI - Investigation of wastewater from polymer production SO - Zenkoku Kogaiken Kaishi; VOL 5, ISS 1, 1980,7-12 LA - JPN CD - ZKKAD AB - CBAC COPYRIGHT: CHEM ABS The effluents from the prodn. of polyethylene, polytvinyl chloride), polystyrene* polypropylene* polybutadiene, EP rubber, and SBR rubber were analyzed for suspended solids, COD, total 0 demand, total erg. C, UV absorbance, Al, Ti, Kjeldahl-N, total phosphate, and pH; the 1st 5 parameters were used for the calcn. of correlation coeffs. (9002-88-4 Polyethylene)(9002-86-2 Polyvinyl chloride)(9003-53-6 Polystyrene)(9003-07-0 Polypropylene) The effluent compns. varied according to the processes. RN - 9002-88-4; 9002-86-2*, 9003-53-6J 9003-07-0; 7429-90-55 7727-37-9 EM - 8109 36 SI - CA/095/067123X AU - Steblev AV TI - Evaluation of the explosion hazard of dichloroethane-chlorine mixtures SO - Khim. Prom-st., Ser.: Khlornaya Prom-st.; ISS 4, 1980*12-13 LA - RUS CD - KHKPD AB - CBAC COPYRIGHT: CHEM ABS The max. explosion pressure (Pmax) developed during the combustion of dichloroethane-Cl mixts.* and the t ime required to reach its max. (tau) were detd. to assess the explosion hazards of such mixts. formed in the manuf. of chlorinated poly(vinyl chloride). (1300-21-6 Dichloroethane ) Results indicated that Pmax of vapors of the mixts. at RNW 1780 00009072 PVC PAGE 16 105.degree, and at the initial pressure (P0) of 1 atm was .ltoreq.1.8 atm. The tau was .gtoreq.0.88 s. At 105.degree, and at P0 2 atm, Pmax was .ltoreq.3.8 atm. and tau was 0.6-1.75 s. The mean temps, of the combustion products were fairly low, with the min. and max. temps, being 340 and 560 K, resp. Mixts. of dichloroethane with Cl are comparatively safe. The max. pressure increase during the combustion of the most hazardous mixt. (contg. 34'/ dichloroethane) did not exceed a 2-fold increase in the initial pressure. With mixts. contg. <20/ and >45/ dichloroethane, the max. pressure increase was .ltoreq.10/ of the initial pressure. * RN - 1300-21-6J 7782-50-55 9002-86-2 EM - 8109 37 SI AU AD TI SO LA CD AB RN EM CA/095/067086N Olson DB ; Calcote HF AeroChem Res. Lab., Inc., Princeton A comparison of polycyclic aromatic hydrocarbons in soot produced from various sources Chem. Phys. Processes Combust.; 1980,Paper No. 9, 4 pp. ENG CPPCD CBAC COPYRIGHT: CHEM ABS Polycyclic arom. hydrocarbon concns. detd. (by other sources) in soot from the combustion of kerosine, benzene, coal, wood, poly(vinyl chloride) (PVC) C2H4, and C2H2 and from aircraft turbine engine fuels were correlated and discussed. (71-43-2 Benzene)(9002-86-2 Poly(vinyl chloride ))(74-84-0 Ethane)(74-86-2 Ethyne) Of the 50 aroms. detd. in soot from each fuel, fluorene, phenanthrene, anthracene, and pyrene were the most common, with the largest amts, formed from kerosene and PVC fuel. (86-73-7 Fluorene )(85-01-8 Phenanthrene)(120-12-7 Anthracene)(129-00-0 Pyrene ) 71-43-2*, 9002-86-2*, 74-84-0; 74-86-2; 86-73-7; 85-01-8; 120-12-7; 129-00-0 8109 m 38 SI - CA/095/048630U AU - Simon R ; Wieczorek H ; Brambilla G ; Grover JR AD - CEC, Brussels TI - Volume reduction and plutonium recovery - their place in alpha waste management SO - Comm. Eur. Communities, (Rep.) EUR; ISS EUR 6871, Radioact. Waste Manage. Disposal,, 1980,92-110 LA - ENG s. CD - CECED AB - CBAC COPYRIGHT: CHEM ABS Solid combustible Pu-contaminated materials are largely produced by mixed oxide (Pu02/U02) fuel prepn. and fuel element fabrication. The following processes to reduce the vol. of the waste by combustion of all org. compds., but also to provide the means of extg. a high percentage of the P were studied: (1) low temp. 2-stage incineration and Pu-recovery # from ashes, (2) incineration in molten salt; (3) acid digestion; m and (4) cryogenic crushing and leaching. These processes can RNW 1781 *n 00009073 PVC PAGE 17 reduce the vol. of the waste by . ltoreq.95X and ext. . ltoreq.98X of the Pu contaminant. Their application advantages are discussed. RN - 7440-07-5; 9002-86-2; 9002-88-4; 9004-34-6 EM - 8109 39 SI - CA/095/0483402 AU - Pavlova LA * Sukharev YG ; Boldyrev VI TI - Methods for Removal of Vinyl Chloride from Waste Gases in PVC Production SO - 1980,12 pp. LA - RUS CD - BOOKA AB - CBAC COPYRIGHT: CHEM ABS A book. Book vinyl chloride removal gas RN - 75-01-4; 9002-86-2 EM - 8109 40 SI - CA/095/048201E AU - Cohen ES ; Kurchatova G AD - Inst. Hyg. Mai. Prof., Sofia TI - Flameless atomic absorption method for the determination of nanogram quantities of beryllium in air SO - Dokl. Bolg. Akad. Nauk; VOL 33, ISS 11, 1980,1505-8 LA - FRE CD - DBANA AB - CBAC COPYRIGHT: CHEM ABS A method was developed for the detn. of Be in air at cones, .gtoreq.0.1 ng/cm3. Air was filtered through chlorinated poly(vinyl chloride) filters and the dust retained was analysed by a flameless at. absorption spectrometer equipped with a graphite atomiser. The coeff. of variation was 4.1-8.7X. RN - 7440-41-7; 9002-86-2 EM - 8109 41 SI - CA/095/055839X AU - Eitingon AI ; Poddubnaya LT ; Korobeinikova NV TI - Toxicological characteristics and combustion product composition of some polymeric film material SO - Besopasn. Lyudei pri Posharakh, (Moskva); ISS 2, 1980,112-15 LA - RUS CD - D3RAP AB - CBAC COPYRIGHT: CHEM ABS Title only translated. Polymer material combustion toxicity Pyrolysis polymer material toxicity PVC pyrolysis toxicity RN - 9002-86-2; 24937-79-9; 24981-14-4 EM - 8109 RNW 1782 00009074 PVC PAGE 18 42 SI AU TI SO LA AB RN EM 43 SI AU A0 TI SO LA CD AB RN EM CA/095/049412M Dresback DS Compositions and method for controlling helminths in pastoral soi Is Bras. Pedido PI PATENT NO. 79 03591 12/09/80 (Pfizer Inc.) P0R CBAC COPYRIGHT! CHEM ABS The insertion of a device for the controlled-release of anthelmintics in the rumen reticular sacs of ruminants (particularly cattle and sheep) results in a disruption of the reproductive cycle of those parasites inside the animal and thus a decreased no. of larvae are excreted in the feces. Consequently, a much lesser contamination of the grazing fields and low infestation rates for all animals grazing in such fields is obsd. The device is made of a porous material, the pores of which are layered with a hydrogel, it has a reservoir contg. the anthelmintic prepn., a hydrosol. liq. excipient, and/or a detergent. A polyethylene device with pores layered with cellulose triacetate gel has a reservoir contg. morantrel tartrate (I) mixed with polyethylene glycol 400 and Na hexametaphosphate, at 63.31, 26.61, and 10.08X, resp., was prepd. by a multi step process. (9002-88-4 Polyethylene)(9012-09-3 Cellulose triacetate)(26155-31-7 Morantrel tartrate) The device weighed .apprx.90 g, its d is .apprx.2.2 g/mL. When inserted in cattle it releases .apprx.250 mg I/day for .apprx.60 days. The use of this device in cattle resulted in a marked redn. of helminths larvae in pasture during the rainy season. 9002-88-45 9012-09-3J 26155-31-7; 5685-86-9; 9002-84-0; 9002-86-2; 9003-07-0; 9003-53-6', 16595-80-55 33401-94-4', 69525-81-1 8109 CA/095/036643N Gilbert J ; Shepherd MJ Food Sci. Div., Minist. Agric., Fish. Food, Norwich The low-molecular-weight fraction of PVC - a potential source for migration Lect. - Int. Symp. Migr., 3rd; 1980,178-97 ENG 45UUA CBAC COPYRIGHT: CHEM ABS Trichloroethane and low-mol.-wt. components of PVC were detd. in PVC containers and food by different techniques including headspace anal, and solvent extn. coupled with steric exclusion fractionation of the low-mol.-wt. components, e.g. vinyl chloride oligomers. (71-55-6 Trichloroethane ) (9002-86-2 PVC) 71-55-65 9002-86-25 16887-00-6 8109 RNW 1783 00009075 PVC PAGE 19 44 SI - CA/095/011681K AU - Wagoner JK ; Infante PF \ Apfeldorf RB AD - Environ. Defense Fund* Washington TI - Toxicity of vinyl chloride and poly(vinyl chloride) as seen throuqh epidemiologic observations SO - J. Toxicol. Environ. Health; VOL 6, ISS 5-6, 1980,1101-7 LA - ENG CO - JTEHO AB - CBAC COPYRIGHT: CHEM ABS A review with many refs. Review vinyl chloride exposure toxicity PVC toxicity occupational exposure review RN - 75-01-4; 9002-86-2 EM - 8108 45 SI - CA/094/213607F AU - Krajewski J 5 Miczarska A ; Dobecki M AD - Zakl. Chem. Zanieczyszczen Powietrza, Inst. Pracy, Lodz TI - Usefulness of different methods of air sampling for the evaluation of occupational exposure to vinyl chloride SO - Med. Pr.; VOL 31, ISS 3, 1980,165-70 LA - POL CD - MEPAA AB - CBAC COPYRIGHT: CHEM ABS Vinyl chloride (I) concns. in air were measured in the polvmn. room of a PVC plant. (75-01-4 Vinylchloride)(9002-86-2 Polytvinyl chloride)) The stationary sampling of the air did not reflect the actual exposure of the individual workers in varing I levels, 1.9-209.5 mg m-3, depending on their occupational activity. Air sampling with the use of personal miniature pumps is necessary to obtain a reliable evaluation of individual exposures. RN - 75-01-4*, 9002-86-2 EM - 8107 46 SI - CA/094/213606E AU - Krajewski J ; Dobecki M ; Milczarska A AO - Zakl. Chem. Zanieczyszczen Powietrza, Inst. Pracy, Lodz TI - Evaluation of the working atmospheres at the PVC plants SO - Med. Pr.; VOL 31, ISS 2, 1980,149-53 LA - POL CD - MEPAA AB - CBAC COPYRIGHT: CHEM ABS The vinyl chloride (I) concns. in the air at 2 PVC plants in Poland were detd. (75-01-4 Vinyl chloride )(9002-86-2 Polyvinyl chloride) Before modernization of the plants, the concns. exceeded the max. permissible concn., i.e., 30 mg I/m3 air. Esp. in polymn. rooms and during autoclave cleaning, the PVC levels were occasionally higher than 200 and 1500 mg/m-3, resp. Hermetization of the polymn. processes and introduction of mech. cleaning of the autoclave considerably reduced the exposure of workers. RN - 75-01-4; 9002-86-2 EM - 8107 RNW 1784 00009076 pvc PAGE 20 47 SI AU AO TI SO LA CO AB RN EM CA/094/196855R Kordo YP * AliKova LF 5 GudenKo VF 5 Kvasha PH Vses. Proisvod. Ob'edin. wYugmebelw Health and hygiene criteria for working conditions in the manufacture of furniture accessories from plastics Derevoobrab. Prom-st.5 ISS 8 198022 RUS DVPYA CBAC COPYRIGHT: CHEM ABS Extensive use of polystyrene* polyethylene* PVC* ABS and SNP-2 and polypropylene in the furniture industry has resulted in the pollution of the work areas with products of thermal-oxidative destruction of those plastics. (9003-53-6 Polystyrene )(9002-88-4 Polyethylene )(9002-86-2 PVCH9003-56-9 ABS)(9003-54-7 SNP-2)(9003-07-0 Polypropylene) In the casting of thermoplastic materials ChPPPi--63 and ARR-63* the noise exceeds the permissible level by 2-20 decibels* the permissible level is 18-30 decibels at 1000-8000 HZ frequency. (77538-11-5 ChPPPr-63)(77538-04-6 ARR-63) The chem. pollutants were dibutyl phthalate* NH3* CO* and arom. hdyrocarbons. (84-74-2 Dibutylphthalate ) The major source of dibutyl phthalate and PhMe is acetylcellulose. (108-88-3 Toluene)(9004-35-7 Acetylcellulose) The installation of ventilators at vantage points is recommended. 9003-53-65 9002-88-4? 9002-86-25 9003-56-9; 9003-54-75 9003-07-05 77538-11-55 77538-04-65 84-74-25 108-88-35 9004-35-75 630-08-05 7664-41-7 8107 48 SI - CA/094/197530T AU - Mason RG 5 Chuang HY K 5 Mohammad SF AO - Univ. South Florida* Tampa TI - Antithrombogenic surfaces: platelet-interface reactions SO - Report; ISS Order No. PB81-123127,, 1980,66 pp. LA - ENG CD - D8REP AB - CBAC COPYRIGHT: CHEM ABS Thrombin absorption onto Cuprophane surfaces was not saturable at thrombin concns. of .ltoreq.l mg/mL and gave adsorption isotherms distinct from those for 4 other proteins: albumin* fibrinogen, IgG* and anti thrombin III. (9002-04-4 Thrombin) Kinetic analyses suggested 2 types of binding sites, with thrombin-Cuprophane apparent dissocn. consts. (Kd) of 300 and 7190 nM, resp. Data from the competitive adsorption of thrombin on Cuprophane in the presence of albumin and IgG at both low and high thrombin concns. and the absence of such types of adsorption of thrombin on PVC support the concept of the presence of these 2 types of binding sites on Cuprophane. (9002-86-2 PVC) On the other hand* thrombin-PVC interaction resulted in a Langmuir type adsorption. IgG had higher affinity for PVC (Kd = 35 nM) than did the other 4 proteins (Kd = 300-900 nM). It is proposed that multiple types of binding sites specific for certain plasma proteins may exist on various artificial surfaces. RNW 1785 00009077 PVC PAGE 21 RN - 9002-04-4; 9002-66-2 EM - 8107 49 SI - CA/094/180263K AU - Krug G > Lahr H Schween P TI - Treatment of combustible* solid* radioactive wastes SO - Ger. Offen. PATENT NO. 2916203 11/06/80 (KEWA Kerbrennstoff-Wiederaufarbeitungs-Gesellschaft m.b.H. ) LA - GER AB - CBAC COPYRIGHT: CHEM ABS A procedure is given for treating wastes which consists esp. of alpha-emitting radionuclides. The radioactive waste is mixed with H2S04 to a concn. of 16 M and undergoes a reaction at high temps. The H2S04 under the surface is oxidised by using HN03 or NOx. The resulting solid residue is sepd. from the liq.* radioactive substances are again recovered from the residue and afterward the remainder is solidified. The H2S04 and HN03 are recycled in the process. Before contacting the waste with H2S04, the former is subjected to mech. treatment which consists of (1) breaking up the pieces into .ltoreq.20 mm sizes and (2) milling of the resulting pieces at <123 K to a grain size of .ltoreq.l mm. Waste pieces from the 1st step are embrittled in liq. N and then milled in a cold app. The material from step 2 and the 90X H2S04 form a suspension at <313 K. The reaction of the waste with the H2S04 takes place at a pressure of 100-500 millibar and at .ltoreq.493 K. A simulated waste contained poly(vinyl chloride) 45* neoprene 20* cellulose 15, polyethylene granules 7.5, and polypropylene granules 7.5 wt.X. RN - 7722-84-15 9002-86-2*, 9002-88-4; 9003-07-0; 9004-34-6 EM - 8106 50 SI - CA/094/162247D AU - Komarov MM * Kozlov MP Lushkov MS ; Valeev RK * Dubyaga VP AD - Vses. Nauchno-Issled. Inst. Sint. Smol* Vladimir TI - Ultrafiltration treatment of wastewaters from iron oxide pigment production SO - Lakokras. Mater. Ikh Primen.; ISS 6* 1980,61-2 LA - RUS CD - LAMAA AB - CBAC COPYRIGHT: CHEM ABS Ultrafiltration treatment of wastewaters from the Fe oxide pigment manufg. utilizes cellulose acetate* PVC* and dynamic membranes. (9004-35-7 Cellulose acetate )(9002-86-2 PVC) Dynamic membranes were effective (>99X) in removing pigment from the wastewater. An ultrafiltration app. with dynamic membranes has 2-4 times higher productivity and is more economical than 1 with PVC membranes. RN - 9004-35-75 9002-86-25 1332-37-2 EM - 8106 RNW 1786 00009078 PVC PAGE 22 51 SI - CA/094/144493B AU - Krajewski J ; Milczarska A j Oobecki M AD - Inst. Occup. Mad. Text. Chem. Ind.> Lodz TI - Suitability of air sampling techniques for the evaluation of occupational exposure to toxic substances SO - Gig. Tr. Prof. Zabol.*, ISS 10, 1980,17-20 LA - RUS CO - GTPZA AB - CBAC COPYRIGHT: CHEM ABS The av. concn. (.hivin.x) was detd. of vinyl chloride (VC) in air, sampled by different techniques at the plant for the prodn. of PVC. (75-01-4 Vinyl chloride )(9002-86-2 PVC) The distribution of various sampling sites, the value of .hivin.x in air samples over different operating zones (loading ramp, service bay, etc.), and variations in .hivin.x value over a period of 30 days were detd. The values of .hivin.x do not reflect adequately the extent of occupational hazard due to exposure to vc. The level of exposure (1.8-209.5 mg/m3 of air) was highly variable and depended on the kind of work performed. PH - 75-01-4; 9002-86-2 EM - 8105 52 SI - CA/094/126849T TI - Biological filters for wastewater treatment SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80111895 08/28/80 (Kohkoku Chemical Industries Co., Ltd.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS The title materials having improved bacteria-retaining capabilities are manufd. from synthetic resins and high-mol. wt. watei--sol. polymers. Thus, a corrugated sheet filter was manufd. from a mixt. contg. PVC 100, poly(vinyl ale.) (I) 10, and other additives 16.5 wt. parts. (9002-86-2 Poly(vinyl chloride))(9002-89-5 Poly(vinyl alcohol)) A dairy wastewater (321 ppm BOD) was aerobically biol. digested by spraying the wastewater over the corrugated filter to give a wastewater contg. 29 ppm BOD, vs. 41 ppm using a filter that was prepd. from a similar compn. contg. no I. RM - 9002-86-2; 9002-89-5 EM - 8105 53 SI - CA/094/126765N AU - Kudryavtsev NA ; Pronin AI ; Ruzanov SR TI - Study of the removal of emulsion poly(vinylchloride) from wash waters in hydrocyclones SO - Khim. Prom-st. Ser.: Proizvod. Pererab. Plastmass Sint. Smol; ISS 4, 1980,8-11 LA - RUS CD - KPSSD AB - CBAC COPYRIGHT: CHEM ABS Emulsified powd. PVC is effectively removed from wash waters (from wet dust removal from waste gas) using hydrocyclones with diam. .ltoreq.30 mm and a feed pressure ltoreq.4 kg/cm2. (9002-86-2 PVC) RNW 1787 00009079 PVC PAGE 23 RN - 9002-86-2 EM - 8105 54 SI - CA/094/145405M TI - Gas-treated PVC for clinical uses SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80137138 10/25/80 (Toray Industries* Inc.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS PVC resin is treated with gases like CO* NH3* and H2-N2 mixt. to prevent the release of the polymer additives and to improve the phys. properties suitable for medical and agricultural uses. (9002-86-2 PVC) Thus* a blood bag made of PVC was exposed to a gas mixt. consisting of CO and NH3 (95 and 5 mol/* resp. ) at the pressure of 1 Torr. The amt. of dioctyl phthalate released from the bag into n-hexane for 2 h in a test container was 8 ppm, whereas that from untreated bag was 1614 ppm. RN - 9002-86-2? 630-08-0; 1333-74-05 7664-41-7; 7727-37-9 EM - 8105 55 SI - CA/094/145321F AU - Zalewski M ; Zabojszcz MM ; Brzezicka-Bak M ; Kozlowskl K AO - Inst. Lekow, Warsaw TI - Research for a biological model for evaluation of the effects of ethylene oxide sterilization of poly(vinyl chloride) medical materials SO - Probl. Tech. Med.; VOL 11, ISS 3, 1980,195-204 LA - POL CD - PTMDB AB - CBAC COPYRIGHT: CHEM ABS A simple and sensitive test was described for the detection of the residue of ethylene oxide in a plastic material and its decompn. products. (75-21-8 Ethylene oxide) The toxicity of the residue obtained by extg. the ethylene oxide impregnated poly(vinyl chloride) medical drain was tested on fishes and on yeast. (9002-86-2 Poly(vinyl chloride)) Sensitivity with guppies was quite low. However an increase of human plasma clotting time was obsd. on plasma contact with ethylene oxide sterilized poly(vinyl chloride) material; this was a highly sensitive test. RN - 75-21-85 9002-86-2 EM - 8105 56 SI - CA/094/127301V AU - Khanna SK ; Gode KD 5 Jayaswal SB AO - Inst. Technol.* Banaras Hindu Univ., Varanasi TI - Studies on sustained release solid dosage forms of propranolol hydrochloride SO - Indian Drugs 5 VOL 18* ISS 3* 1980*103-8 LA - ENG CO - INDRB AB - CBAC COPYRIGHT: CHEM ABS Sustained release of propranolol-HCl (I) from different materials and in the presence of different adjuvants (carnauba wax, stearyl ale., poly(vinylpyrrolidone ), RNW 1788 7T 00009080 PVC T1 PAGE 24 PVC> cellulose acetate> talc* lactose> and Encompress was compared in vitro using simulated gastric fluids. (318-98-9 Propranolol hydrochloride)(112-92-5 Stearyl alcohol)(9003-39-8 Polyvinylpyrrolidone 1(9002-86-2 PVCM9004-35-7 Cellulose acetate H63-42-3 Lactose) The highest dissoln. time (25 and 50'/. release) was obtained with carnauba wax. Encompress* talc* and talc-lactose mixt. caused the prolongation of I action. I release from Amberlite IR-120 and Zeokarb-225 showed a zero-order release with time. (9002-23-7 Amberlite IR-120)(9011-03-4 Zeokarb-225) With Amberlite IRC-50* .apprx.70X of I was released in 30 min. (9002-29-3 Amberlite IRC-50) With Indion CXC-125 and Agrion C-100* the I release followed a zero-order pattern. (69772-32-3 Indion CXC-125M55191-64-5 Agrion C-100) RN - 318-98-9; 112-92-5; 9003-39-8; 9002-86-2; 9004-35-7; 63-42-3; 9002-23-7; 9011-03-45 9002-29-3; 69772-32-3; 55191-64-55 7789-77-7; 14807-96-6 EM 8105 57 SI CA/094/089735E TI Decomposition of organic radioactive wastes SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80129797 10/07/80 (Toyo Engineering Corp. ) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Org. radioactive wastes are decompd. by boiling with cone. H2S04 and an oxidant; then the vapor is condensed with a coolant at 160-300.degree, to return the condensate to the boiling mixt. For example* contaminated poly(vinyl chloride) sheet is added to boiling H2S04 and then further treated with coned. HN03. (9002-86-2 PVC) The vapor is cooled with a high-temp. Dowtherm. RN 9002-86-25 7664-93-9; 7697-37-2 EM 8104 58 SI TI SO LA AB RN EM CA/094/089692P Filtration materials for biological digestion of wastewaters Jpn. Kokai Tokkyo Koho PATENT NO. 80104693 08/11/80 (Kohkoku Chemical Industries Co. Ltd.) JPN CBAC COPYRIGHT: CHEM ABS The title materials having good bacteria-retaining properties are manufd. from synthetic resins and sol. inorg. salts. Thus* a mixt. contg. poly Vinyl chloride) 100* NaCl 20* and additives 18.5 wt. parts was pressed and extruded to obtain a corrugated sheet (0.7 mm thickness). (9002-86-2 PolyVinyl chloride)) The sheet retained bacteria better than a sheet prepd. from a similar compn. contg. no NaCl. 9002-86-2; 7647-14-5 8104 m RNW 1789 00009081 PVC PAGE 25 59 SI - CA/099/089391Q AU - Saito N ; Yanai E TI - Fire behavior and combustion products in full scale room fire test SO - Shobo Kenkyusho HokokuJ VOL 99,, 1980,21-8 LA - JPN CD - SHKHB AB - CBAC COPYRIGHT: CHEM ABS Full scale room fire tests were carried out to det. toxic gases evolved from burning wood and other polymeric materials. Their fire behaviors show good reproducibi1ity. Twenty one combustion products including CO, CN-, and aldehydes are identified and 18 products of them are analyzed quant. CO is considered to be the most dangerous product because of its high concn. formed during fire situations. The max. concns. of aldehydes and CN- formed from synthetic polymers contg. N atoms are obtained several minutes after a period showing the small rate of complete combustion and large wt. loss rate. The CN- are formed more efficiently from synthetic polymers than from wool. RN - 67-56-1; 67-69-1J 71-93-2; 79-82-8; 79-89-0; 79-85-1; 79-86-2; 79-90-8J 79-98-6 5 79-99-7; 75-05-8*, 75-07-0; 106-97-8; 107-02-8*, 107-13-1; 108-88-3; 110-00-9; 115-07-15 129-38-9; 592-92-7; 630-08-0; 9002-86-2; 25019-91-9; 25167-67-3; 27137-91-3 EM - 8109 60 SI - CA/099/070772T AU - Walloschke E TI - Active sludge process for biological wastewater purification SO - Ger. Offen. PATENT NO. 2909658 08/19/80 LA - GER AB - CBAC COPYRIGHT: CHEM ABS In the aerated activated-sludge process, the length of time it takes for the air bubbles to travel from the bottom of the tank to the surface is increased by a system of baffles, e.g. free-floating polyivinyl chloride) pipe sections, 30-60 mm in both diam. and length, which have a rouqh surface. t9002-86-2 PVC) RN - 9002-86-2 EM - 8109 61 SI - CA/099/109270E AU - Sugitachi A ; Tanaka M ; Kawahara T ; Takagi K AD - Dep. Surg., Osaka Natl. Hosp.* Osaka TI - Antithrombogenicity of urokinase-immobilized polymer surfaces SO - Trans. - Am. Soc. Artif. Intern. Organs; VOL 26 1980,279-8 LA - ENG CD - TAIOA AB - CBAC COPYRIGHT: CHEM ABS A plasminogen activator, urokinase, was immobilized on a polymer (nylon 6, nylon 11, PVC, Ducor polyurethane, polyester elastomer, and silicone rubber) to provide local plasminogen-activating activity and to maintain fibrinolytic activity over a long term. (9039-53-6 Urokinase)(25038-59-9 nylon 6)(25035-09-5 nylon 11)(9002-86-2 PVC)(76632-93-9 Ducor) A urokinase-immobilized nylon 6 tube RNW 1790 00009082 PVC PAGE 26 maintained fibrinolytic activity during storage at 25.degree, for >12 mo. The immobilised tubes were used as drains and catheters. RN - 9039-53-65 25038-59-4; 25035-04-5; 9002-86-2; 76632-93-4 EM - 8104 62 SI - CA/094/109126N AU - Goullet D ; Fusselier M AD - Pharm. Cent. Hosp. Civ. Lyon, Lyon TI - Evaluation of toxicological risks produced by the migration of two plasticisers, diethvlhexyl phthalate and diethylhexyladipate, from polyivinyl chloride) objects used in medicine SO - Labo-Pharma - Probl. Tech.; VOL 28, ISS 304, 1980,939-48 LA - FRE CD - LPPTA AB - CBAC COPYRIGHT: CHEM ABS A review, with 73 refs., of the toxicity and metab. of bis(2-ethylhexyl) phthalate (I) and bis(2-ethylhexyl) adipate and the risks to patients from their leaching from polyivinyl chloride )-based medical-surgical equipment such as blood containers. (117-81-7 Diethylhexyl phthalate )(103-23-1 bis(2-ethylhexyl) adipate )(9002-86-2 Poly(vinyl chloride)) RN - 117-81-7*, 103-23-15 9002-86-2 EM - 8104 63 SI - CA/094/109109J AU - Biggs MS ; Baldwin J AD - PVC Div. British Ind. Plast. Ltd., Durham TI - Flexible PVC compound for long-term contact with human tissue SO - Plast. Rubber: Mater. Appl.; VOL 5, ISS 4, 1980,187-91 LA - ENG CD - PRMAD AB - CBAC COPYRIGHT: CHEM ABS The development of flexible PVC medical disposable devices and formulation with improved resistance to plasticiser extn. are discussed and reviewed with 12 refs. (9002-86-2 PVC) RN - 9002-86-2 EM - 8104 64 SI - CA/094/090294S AU - Pregnolatto NP 5 Murata LT Fu 5 Garrido NS AD - Outros Mater. Embalagem Inst. Adolfo Luts TI - Test of various plastic materials employed in containers for Brasilian pharmaceuticals and clinical equipment SO - Rev. Inst. Adolfo Luts; VOL 40, ISS 1, 1980,55-7 LA - POR CD - RIALA AB - CBAC COPYRIGHT: CHEM ABS Of 185 samples of plastic materials examd. only polyethylene fulfilled the requirements under Brasilian legislation for packaging of pharmaceuticals and clin. supplies. (9002-88-4 Polyethylene) Polyoxypropylene, PVC, polystyrene, ABS resin, latex, polyamides and silicones did not satisfy those requirement due to their pH and/cr extraneous odors resulting from plasticisers and stabilisers. (25322-69-4 RNW 1791 00009083 PVC PAGE 27 Polvoxypropylene )(9002-86-2 PVC)(9003-53-6 Polystyrene)(9003-56-9 ABS resin) All samples were sterilized by autoclave prior to examn. The addn. of the plasticizer dioctyl phthalate to the flexible film of PVC and of the stabilizer tin dioctyl bis (2-ethylhexylthioglvcerolate) to rigid PVC caused these the extraneous odors in those materials. (117-81-7 Dioctyl phthalate )(26901-97-8 tin dioctyl bis (2-ethylhexylthioglycerolate)) RN - 9002-88-4; 25322-69-4; 9002-86-2; 9003-53-6; 9003-56-9*, 117-81-7; 26401-97-8 EM - 8104 65 SI - CA/094/077714J AU - Ungvary G AD - State Inst. Occup. Health, Budapest TI - Studies on the teratogenicity of PVC SO - Acta Morphol. Acad. Sci. Hung.; VOL 28, ISS 1-2, 1980,159-64 LA - ENG CD - AMSHA AB - CBAC COPYRIGHT: CHEM ABS A review with many refs, on the teratogenicity of PVC. (9002-86-2 PVC) RN - 9002-86-2 EM - 8104 66 SI - CA/094/071450Y AU - Morosoff N ; Yasuda H AD - Res. Triangle Inst., Research Triangle Park TI - A study of an electrodeless glow discharge as a means of modifying the surface of polymers SO - Report; ISS RTI/0790/00-01F, NIH-NOl-HV-3-2913-75 Order No. PB80-212715,, 1980,160 pp. LA - ENG CD - D8REP AB - CBAC COPYRIGHT: CHEM ABS A method of modifying the surface of materials for use in prosthetic devices in contact with blood was developed by the deposition of glow discharge polymer. The effect of choice of monomer and of operational parameters on the chem. nature of the glow discharge polymer was elucidated. The method gave a very thin (750-1000 .ANG.)> highly adhesive and cohesive coating that did not affect the bulk properties of the substrate. Surfaces with a wide range of chem. properties were a barrier to leaching of plasticizer from PVC formed by glow discharge treatment and a change of chem. properties for tetramethyldisiloxane glow discharge polymer was found with aging. (9002-86-2 PVC) RN - 9002-86-2 EM - 8104 RNW 1792 00009084 PVC PAGE 28 67 SI AU AO TI SO LA CO AB RN EM CA/094/071432U Salthouse TN ; Matlaga BF Cell Biol. Sect.. Ethicon Res. Found.* Somerville Effects of implant surface on cellular activity and evaluation of histocompatibility Adv. Biomater.; VOL 1. ISS Eval. Biomater., 1980,295-305 ENG ABIOD CBAC COPYRIGHT: CHEM ABS Poly(tetrafluoroethylene) (PTFE) rods of identical size with either smooth or abraded surfaces were implanted in gluteal muscles of rats for 14, 28, 42, 56, and 90 days. (9002-84-0 Poly(tetrafluoroethylene )) PVC rods contg. 0.42 dibutyltin, of similar size and with known toxic effect, were also implanted for 14, 21, and 28 days. (9002-86-2 Poly(vinylchloride))(1002-53-5 Dibutyltin) The cellular response to the abraded PTFE and PVC rods was significantly higher than that obsd. with the smooth PTFE implants. Acid phosphatase and ami nopeptidase activity was enhanced in the cellular reaction to the abraded and PVC implants, but was minimal with the smooth samples at all time periods. (9001-77-8 Acid phosphatase )(9031-94-1 Aminopeptidase ) Glucose-6-phosphate dehydrogenase, indicative of pentose shunt activity, was greater at abraded rod implant sites in comparison to smooth samples, and absent at PVC implant sites. (9001-40-5 Glucose-6-phosphate dehydrogenase) Pos. 3H-thymidine incorporation by autoradiog. was obsd. in macrophages from 42 to 90 days at abraded implant sites, signifying DNA synthesis and cell replication. No cell replication was assocd. with the smooth samples. PVC samples were not treated for autoradiog. Surfaces thus appear to affect profoundly the physiol, of responding cells at implant sites. Because the abraded surface had significant effects on the cellular response, enzyme activity, and cell turnover at implant sites, it is concluded that strict standardization of implant surface is necessary for valid comparative evaluations of biomaterials for histocompatibility. 9002-84-0; 9002-86-2; 1002-53-5; 9001-77-8; 9031-94-1; 9001-40-5 8104 68 SI - CA/094/071276W AU - Contreras TJ ; Jemionek JF ; French JE ; Shields LJ AD - Dep. Exp. Hematol., Armed Forces Radiobiol. Res. Inst., Bethesda TI - Effect of plastic containers on liquid preservation of human granulocytes. I. With and without deoxyribonuclease and hydrocortisone SO - Transfusion (Philadelphia); VOL 20, ISS 5, 1980,519-30 LA - ENG CD - TRANA AB - CBAC COPYRIGHT: CHEM ABS Of the 4 types of plastic containers evaluated, PL-146 (PVC) was the container of choice for granulocyte storage for >48 h. (9002-86-2 PL-146) Granulocytes stored in these transfer packs had higher viability and slower mean cell vol. expansion rates during storage than did RNW 1793 00009085 PVC PAGE 29 granulocytes stored in other plastic containers (bioriented-biaxial polyolefin, ethylene-vinyl acetate copolymer, polypropylene). (24937-78-8 Ethylene-viny1 acetate copolymer )(9003-07-0 Polypropylene) The addn. of hydrocortisone and DNase to the storage medium for all containers resulted in overall higher viability and decreased mean cell vol. expansion rate, but no change in phagocytic function. (50-23-7 hydrocortisone)(9003-98-9 DNAse) RN - 9002-86-2; 24937-78-8! 9003-07-0J 50-23-7J 9003-98-9 EM - 8104 69 SI - CA/094/059202M AU - Hilado CJ ; Huttlinger PA AD - Prod. Saf. Corp., Sunnyvale TI - Overheating of thermal insulation materials! toxicity of gases SO - Proc. Int. Conf. Therm. Insul.j VOL 2,, 1980,119-30 LA - ENG CD - PCTND AB - CBAC COPYRIGHT: CHEM ABS Of several thermal insulation materials tested for overheating off-gas toxicity in mice, the polyimi de-type and phenolic rigid foams exhibited the shortest times to death and the polyisocyanurate, polytvinyl chloride), polyurethane, and polystyrene rigid foams exhibited the longest times to death. (27026-93-3 Polyisocyanurate )(9002-86-2 Poly(vinyl chloride))(9003-53-6 Polystyrene) Cellulosic boards based on bagasse, newsprint, and starch exhibited longer times to death than cellulosic boards based on mixed hardwood fibers and phenol-HCHO or urea-HCHO binder. The addn. of air flow reduced the time to death. CO was apparently the principle toxicant in the pyrolysis gases, in some cases the CO levels were high enough to implicate it as the only toxicant. RN - 27026-93-3J 9002-86-2! 9003-53-6! 630-08-0! 25014-12-4! 62238-79-3 EM - 8104 70 SI - CA/094/052173U TI - Treatment of odorous waste gas from an oven for foaming PVC SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 99516 07/29/80 (Kiso Kogyo K. K. ) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS The title waste gas is deodorised by combustion in a manner such that the heat of the combustion waste gas is recovered. Thus, PVC was foamed in an oven at 230.degree, and, at the center portion of the oven, a portion of the waste gas (contg. 20,000 ppm odorants) formed was withdrawn and burned to give a deodorised gas (550.degree.). (9002-86-2 PVC) This gas was heat-exchanged with a 2nd portion of the waste gas (contg. 300 ppm odorants) from the side portion of the oven and then discharged. The heat-exchanged 2nd waste gas (350.degree.) was used to maintain the oven temp, at 230.degree.. RN - 9002-86-2 EM - 8103 RNW 1794 00009086 PVC PAGE 30 71 SI - CA/094/053001Y AU - Pusineri C ; Goletto J TI - Poly(vinyl chloride) and polyurethane compositions for medical use and objects obtained from these compositions SO - Eur. Pat. Appl. PATENT NO. 12701 06/25/80 (SODIP, Societe des Industries Plastiques S. A.) LA - FRE AB - CBAC COPYRIGHT: CHEM ABS Mixts. of PVC or vinyl chloride copolymers and polyurethanes having tertiary amine and/or NH4+ groups having improved mech. properties* transparency and hemocompatibility were prepd. and used in medical applications* e.g. catheters. (9002-86-2 PVC) Thus* aminoacetic hydraside-diphenylmethane 4*4'-diisocyanate-N-ethvldiethanolamine-propylene oxide copolymer (I) was prepd. and 5.33 g of it was mixed with 80 g of PVC soln. (100 g PVC in 900 g DMF) to give a 60:40 PVC-polyurethane mixt. (62859-17-0 aminoacetic hydraside-diphenylmethane 4,4'-diisocyanate-N-ethyldiethanolamine-propylene oxide copolymer) The mixt. was converted a transparent film with good tear resistance. I-Mel salt was also used with PVC mixts. Heparinized compns. having good hemocompatibi1ity and antithrombogenicity were prepd. from PVC, quaternised polyurethane (NH4+ contg.), and 1-15X heparin. (9005-49-6 Heparin) RN - 9002-86-2*, 62859-17-05 76066-95-05 9005-49-65 9003-22-95 9005-09-85 76066-99-45 76067-00-0 EM - 8103 72 SI - CA/094/052937W TI - Materials for methyl salicylate packaging SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 95564 07/19/80 (Toppan Printing Co. Ltd.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Poultices contg. Me salicylate (I) are packed in A1 and other metal foils by using a compn. contg. emulsified ethylene-acrylic acid copolymer and poly(vinylene chloride) as adhesive agent. (119-36-8 Me salicylate)(9010-77-9 ethylene-acrylic acid copolymer)(9002-86-2 poly(vinylene chloride)) RN - 119-36-85 9010-77-95 9002-86-2 EM - 8103 73 SI - CA/094/052889G AU - Frosin VN 5 Tsibikov BV 5 Izvekova GI 5 Rabin'kii BY 5 Pakhomov SV AU - Ramkova NV 5 Alekseeva MI 5 Kareev NV 5 Likhtman TV 5 et al AD - Nauchno-Proizvod. Ob'edin. "Medoborudovanie"* Moscow TI - Selection of conditions for formaldehyde gas sterilization SO - Med. Tekh.5 ISS 5, 1980,35-9 LA - RUS CD - MEDTB AB - CBAC COPYRIGHT: CHEM ABS A 100-L chamber is described for the sterilization of surgical goods made from polyethylene, PVC, and RNW 1795 00009087 PVC PAGE 31 polypropylene using H2CO as the disinfecting gas. (9002-88-4 Polyethylene)(9002-86-2 PVC)(9003-07-0 Polypropylene )(50-00-0 Formaldehyde) Also included is the study on various factors ' which affect sterilisation with H2CO. Air pressure in the chamber should be <326 mm and 16-20X H2C0 is suitable for total sterilization. Efficiency of H2C0 sterilisation depends to a great extent on the type of packaging material. Polyethylene materials are less permeable to H2CO vapors and thus coarse calico or kraft paper is recommended. The effect of NH3, used for the removal of H2CO after sterilisation which may cause toxic effects* is also included* together with the amts, necessary to bring about such neutralisation. RN - 9002-88-4; 9002-86-25 9003-07-05 50-00-0 EM - 8103 74 SI - CA/094/052880X AU - Chaigneau M AD - Lab. Gas* Univ. Rene-Descartes> Paris TI - Action of ethylene oxide on plastic materials* silicones and rubbers absorption and combination SO - Ann. Pharm. Fr.5 VOL 38, ISS 4, 1980,315-21 LA - FRE CD - APFRA AB - CBAC COPYRIGHT: CHEM ABS The kinetics of sorption of ethylene oxide (I) by different plastics and elastomers varied according to the type of the polymer and the additive (e.g. plasticiser) used. (75-21-8 Ethylene oxide) Thus* the presence of plasticisers in PVC retarded the rate of absorption of I and increased the satn. value. (9002-86-2 PVC) Nylon 6* nylon 66* nylon 610* and nylon 11 had similar rate of absorption of I* but the absorption power was different except in nylon 610 and 11. (25038-54-4 nylon 6 )(32131-17-2 nylon 66 )(9008-66-6 nylon 610 )(25035-04-5 nylon 11) Polypropylene, ABS and poly(tetrafluoroethylene) were different in their behavior towards I. (9003-07-0 Polypropylene)(9003-56-9 ABS)(9002-84-0 Poly(tetrafluoroethylene )) Additives affected I absorption by silicones. ABS, poly(tetrafluoroethylene)* and silicones were stable towards I. Sterilisation of plastics and rubbers by I is discussed. RN - 75-21-85 9002-86-25 25038-54-45 32131-17-25 9008-66-65 25035-04-55 9003-07-05 9003-56-9; 9002-84-05 9002-88-45 9003-22-95 9003-53-6; 9011-14-75 24936-68-35 24937-78-8 EM - 8103 75 SI - CA/094/052857V AU - Novotny Z 5 Mirejovsky P AD - Otolarynogol. Klin., Karlovy Univ., Prague TI - Tolerance of alloplastic materials in experiment SO - Cesk. Otolaryngol.5 VOL 29, ISS 4, 1980,202-7 LA - CZE CD - CEOTA AB - CBAC COPYRIGHT: CHEM ABS Ag, Fe, PVC, polyethylene, rubber platelets (5 .times. 5 mm), and silicone rubber balloons (diam. 5 RNW 1796 00009088 PVC PAGE 32 mm) were implanted under the skin of guinea pigs. (9002-86-2 PVC)(9002-88-4 Polyethylene) The no. of mononuclear macrophages surrounding the implants was maximal after 2 wk and decreased afterwards esp. around the silicone balloons. The thickness of collagenous deposits around the implants was not related to the compn. of the implants. Apparently, silicone rubber is more suitable for implants than the other materials. RN - 9002-86-2J 9002-88-4; 7439-89-6*. 7440-22-4 EM - 8103 76 SI AU AO TI SO LA CD AB RN EM CA/094/042197R Herpol C Dep. Zoophysiol.. State Univ. Gent. Ghent Biological evaluation of toxicity caused by combustion of building materials Fire Mater.; VOL 4, ISS 3, 1980,127-43 ENG FMATD CBAC COPYRIGHT: CHEM ABS Tests performed on 35 materials, including woods, synthetics, and textile materials, which were submitted to thermal degrdn. at 3 different combustion temps., were studied. In addn., the interpretation and limitations of toxicol. test results are discussed more generally. 9002-86-2; 9002-88-4; 9003-07-0; 9003-53-6 8103 77 SI - CA/094/007247K AU - Rudi VP ; Orynyak MV ; Sidenko ZS A0 - Chernov its. Univ. Chernovtsy TI - Effect of cationic surfactants on poly(vinyl chloride) precipitation from wastewater SO - Kolloidn. Zh.; VOL 42, ISS 3, 1980,589-91 LA - RUS CD - KOZHA AB - CBAC COPYRIGHT*. CHEM ABS Wastewaters contg. colloidal PVC can be clarified by adding [Me2RN(CH2)nNRMe2)2+2B)--(I) where R are C5-12 alkyls and n is 2-20 as the coagulants. (9002-86-2 PVC) Thus, the addn. of I 1.0-1.5 mmole/L to &'/. PVC latex contg. Na alkyl sulfate as the emulsifier produced 100Z coagulation in apprx.80 min. The coagulation proceeded in 2 stages, each preceded by induction periods (tau) depending on R and n. Large R and n decreased tau; when R contained >7 carbon atoms there was no coagulation. RN - 9002-86-2; 6309-01-9; 18464-23-8; 18507-15-8 EM - 8102 RNW 1797 il 00009089 PVC PAGE 33 78 SI - CA/099/020460U AU - Kline WM TI - Thrombo-resistant non-thrombogenic objects formed from a uniform mixture of a particulate resin and colloidal graphite SO - U.S. PATENT NO. 4219520 08/26/80 (Medical Evaluation Devices and Instruments Corp.) LA - ENG AB - CBAC COPYRIGHT: CHEM ABS Thromboresistant materials for vascular assist devices (such as catheters) are prepd. from a polymer--graphite composite with random particles of the colloidal graphite exposed on the surface; the surfaces are etched with Na dispersed with naphthalene in a solvent if the material is a halo hydrocarbon or with a hot oxidizing acid if the material is a polyolefin* polyurethane* silicone, or vinyl polymer. After cleaning, the material is coated with a cationic surfactant (e.g. Zephiran) to form a heparin-receptive surface* and a coating of heparin is applied over the surfactant. (9005-49-6 Heparin) Catheter tubing thus prepd. is both thromboresistant and nonthrombogenic. RN - 9005-49-6? 7782-42-55 9002-86-25 9002-88-4; 9003-07-05 25067-11-2; 25135-99-3 EM - 8102 79 SI - CA/094/020364R AU - Mathot F ; Bonnard J ; Hans P 5 Bosly J AD - Pharm. Hop. Baviere* Liege TI - Perfusions of nitroglycerin. Study of absorption by different plastic materials SO - J. Pharm. Belg.5 VOL 35, ISS 5, 1980,389-93 LA - FRE CD - JPBEA AB - CBAC COPYRIGHT: CHEM ABS The use of PVC and silicone tubes for infusion of nitroglycerin (I) solns. (0.656 mgl/mL) resulted in marked redn. (69-84'/) of I initial concns. due to the absorption of I by these plastics. (9002-86-2 PVC)(55-63-0 Nitroglycerin) Teflon, high-d. polyethylene and polypropylene were recommended to be used in the infusion system since they did not change I concn. (9002-84-0 Teflon)(9002-88-4 Polyethylene )(9003-07-0 Polypropylene) I concn. was detd. by gas chromatog. and high-performance liq. chromatog. in an infusion system comprising a disposable polypropylene syringe (60 mL), a polyethylene tubing, and an elec. pump. RN - 9002-86-2J 55-63-05 9002-84-0; 9002-88-4; 9003-07-0 EM - 8102 # 11 # RNW 1798 m 00009090 PVC PAGE 34 80 SI - CA/094/020351J AU - Jacobson MS ; Kevy SV ; Parkman R ; Wesolowski JS AD - Dep. Med. Child. Hosp. Med. Cent., Boston TI - An in vitro evaluation of a new plasticizer for poly(vinylchloride) medical devices SO - Transfusion (Philadelphia); VOL 20, ISS 4, 1980,443-7 LA - ENG CD - TRANA AB - CBAC COPYRIGHT: CHEM ABS The rate of Hatcol-200 (H-200) leaching from polyvinyl chloride (PVC) by serum is 1/100 that of di-2-ethylhexyl phthalate (DEHP) as detd. by radioassay. (75882-00-7 Hatcol-200)(9002-86-2 Polyvinyl chloride) There is a proportional decrease in' leachability of DEHP but not of H-200 as the plasma proteins are dild. Saline exts. of DEHP demonstrated a low but progressive rate of leaching with an accumulation of 11 mug/mL after 7 wk whereas H-200 showed only a const, residue of 0.35 mug/mL. Normal human serum incubated for 3 wk at 37.degree, with PVC strips plasticized with DEHP produced significant growth-inhibition of human diploid fibroblasts. Human serum incubated in an identical manner with PVC plasticized with H-200 for up to 4 wk demonstrated no effect on tissue culture. Thus, H-200 deserves further evaluation as a replacement for DEHP in PVC biomedical devices. RN - 75882-00-7; 9002-86-2 EM - 8102 81 SI - CA/094/007704G AU - Gilding DK ; Reed AM ; Baskett SA AD - Univ. Liverpool, Liverpool TI - Ethylene oxide steri1ization: effect of polymer structure and sterilization conditions on residue levels SO - Biomaterials (6uildford Engl.); VOL 1, ISS 3, 1980,145-8 LA - ENG CD - BIMAD AB - CBAC COPYRIGHT: CHEM ABS A modified Sterivit cycle using 15 MX ethylene oxide-85/ M C02 mixt. and heating to 70.degree, with vacuum and air rinsing gave excellent kill of Bacillus subtilis with minimal effects on the properties of hydrophilic and biodegradable polymers studied and left residues of <400 ppm. (75-21-8 ethylene oxide) Plasticized PVC and polypropen* fibers showed higher residues than others after gassing. (9002-86-2 PVC) RN - 75-21-85 9002-86-2; 124-38-9*, 9002-84-0; 9003-05-8 EM - 8102 82 SI - CA/093/03111OK AU - Roed-Petersen J AD - Dep. Dermatol., Gentofte Hosp., Hellerup TI - Allergic contact dermatitis from butyl acetate SO - Contact Dermatitis; VOL 6, ISS 1, 1980,55 LA - ENG CO - CODED AB - CBAC COPYRIGHT: CHEM ABS A worker, in pharmaceutical manufg. RNW 1799 00009091 PVC PAGE 35 developed dermatitis from BuAc presumably because of its attack on PVC gloves. (123-86-4 Butyl acetate)(9002-86-2 PVC) RN - 123-86-4; 9002-86-2 EM - 8008 83 SI - CA/092/203102G AU - Teraoka R ; Muraoka M ; Kobayashi M ; Hirano T TI - Waste solution treatment SO - Jpn. Kokai Tokkyo Koho PATENT NO. 80 03828 01/11/80 (Shinnippon Koa K. K.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Wastewater is treated in a contact-oxidn. app. The app. consists of a series of flat vertical chambers contg. honeycomb filler. The inlet and outlet are placed on the bottom of each chamber, and all of the inlets are connected to 1 pump. An optional storage tank is placed under the app. Thus, a contact-oxidn. app. consisting of 6 7-m3 tanks contg. 6-m3 PVC honeycomb filler was used to treat fish-processing wastewater at 72 m3/day. (9002-86-2 PVC) The BOD removal was 60/. The app. uses less power and time than a rotating disk app. RN - 9002-86-2 EM - 8007 84 SI - CA/092/203564J AU - Malakhova ZN ; Artem'ev AI AD - Vses. Nauchno-Issled. Inst. Farm., Moscow TI - Study of the possibility of using contour packaging for validol tablets SO - Khim.-Farm. Zh.J VOL 14, ISS 1, 1980,89-93 LA - RUS CD - KHFZA AB - CBAC COPYRIGHT: CHEM ABS Of several packaging materials examd. for packaging of validol (menthyl valerate) tablets at elevated temps. (20-70.degree.), Servak made from PVC films and lacquered Al foil and noncellular packaging from lacquered Al foil were quite satisfactory. (28221-20-7 Validol)(9002-86-2 PVC) Lacquered cellophane and combined polyethylene-cellophane films are not satisfactory because of soly. of the film materials in the validol vapors and stratification problems. (9002-88-4 Polyethylene) RN - 28221-20-7; 9002-86-2; 9002-88-4; 7429-90-5 EM - 8007 85 SI - CA/092/158568A AU - Hilado CJ 5 Cumming HJ ; Casey CJ AD - Fire Saf. Cent., Univ. San Francisco, San Francisco TI - Toxicity of pyrolysis gases from foam plastics SO - SAMPE Q.5 VOL 11, ISS 2, 1980,32-5 LA - ENG CD - SAMQA AB - CBAC COPYRIGHT: CHEM ABS Twenty-three samples of flexible foams and 12 samples of rigid foams were evaluated for toxicity of RNW 1800 00009092 PVC PAGE 36 pyrolysis gases, using the University of San Franciso toxicity screening test method. Polychloroprene among the flexible foams and polystyrene among the rigid foams exhibited the least toxicity under the test conditions. Increasing char yield was accompanied by decreased flammability, and by decreased toxicity in some materials. RN - 74-82-85 541-59-3J 630-08-05 9002-86-25 9002-88-4; 9003-53-65 25585-20-0 EM - 8006 86 SI - CA/092/158469U AU - Birky MM ; Paabo M 5 Brown JE AD - Cent. Fire Res., NBS, Washington TI - Correlation of autopsy data and materials involved in the Tennessee jail fire SO - Fire Saf. J.; VOL 2, ISS 1, 1980,17-22 LA - ENG CD - FSJOD AB - CBAC COPYRIGHT: CHEM ABS In the Maury County, Tennessee jail fire of 1977, 4 materials (consisting of foam and fabric Covering) were involved and because of the limited no. of materials involved it was possible to correlate the toxicol. data with the materials involved. The toxicol. significance of elevated HCN in fire fatalities was not resolved, since both CO and HCN were elevated in the victims, however, in no case could cyanide be identified as the principle or sole cause of death. The distribution and pos. correlation between HCN and CO in the blood of various victims may reflect the variation of individual ability to withstand anoxic shock. RN - 74-90-85 630-08-05 9002-86-2 DTG - BLOOD CONCENTRATIONS 5 HEMATOLOGY ; LETHAL DOSAGE EM - 8006 87 SI - CA/092/122565H AU - Tawaratani T ; Inui Y 5 Shibasaki I AD - Fac. Eng., Osaka Univ., Osaka TI - Effect of coexisting substances on the sporicidal activity of gaseous propylene oxide toward Bacillus subtilis var. niger SO - Hakko Kogaku Kaishi; VOL 58, ISS 1, 1980,1-9 LA - JPN CD - HK0K0 AB - CBAC COPYRIGHT: CHEM ABS The mechanism of the protective action of coexisting substances, i.e. milk casein, agar powder, cellulose powder, polyvinyl chloride powder, teflon powder, and glass beads, against the sporicidal activity of gaseous propylene oxide (PO) toward B. subtilis niger 4380 spores was studied. (9002-18-0 Agar )(9004-34-6 Cellulose)(9002-86-2 Polyvinyl chloride)(9002-84-0 Teflon)(75-56-9 Propylene oxide) The 1st 4 substances showed remarkable protective action, whereas the others had no effect. The isothermal PO absorption curve of spores was of the Henry's type, so the D value of spores was dependent on the amt. of adsorbed PO. But the amt. of PO adsorbed by spores decreased with increasing water content of RNW 1801 00009093 PVC PAGE 37 spores. When spores were exposed to gaseous PO, the amt. of PO adsorbed by spores was decreased in the presence of coexisting protective substances. Although spores lost the water during the gaseous P0 treatment* loss of water from spores was suppressed by the coexistence of protective substances. Apparently* the protective effect of coexisting substances is not due to the redn. of gaseous PO concn. but to the suppression of water loss from spores during the gaseous treatment. RN - 9002-18-05 9009-39-6*. 9002-86-2J 9002-89-0*, 75-56-9 EM - 8005 88 SI AU AU AD TI SO LA CD AB RN EM CA/092/082376P Lindon JN ; Collins RE C ; Coe NP ; Jagoda A * Briei--Russell D Merrill EW ; Salsman EW Dep. Surg., Beth Israel Hosp., Boston In vivo assessment in sheep of thromboresistant materials by determination of platelet survival Circ. Res.5 VOL 96, ISS 1, 1980,89-90 ENG CIRUA CBAC COPYRIGHT: CHEM ABS The thromboresistance of 13 potentially blood-compatible polymers was assessed In sheep by detg. survival of 51Ci--labeled platelets. Polymer tubing (120-150 cm .times. 2.3 mm i.d. ) coiled around.the neck was incorporated into the circulation through silicone rubber connectors as a carotid artery-external jugular vein shunt. The mean platelet half-life in control animals (shunt control) was 78.2 h. Eleven of the 13 polymers tested significantly shortened platelet half-life. PVC (Tl/2 = 95.9 h), polyperfluoroethylene (Tl/2 = 97.0 h), and Me acrylate-acrylonitrile copolymer (Tl/2 = 50.7 h) produced the greatest shortening. (9002-86-2 PVC)(9002-89-0 Polyperfluoroethylene)(29968-79-9 Me acrylate-acrylonitrile copolymer) Only silica-free polydimethyl siloxane (Tl/2 = 79.7 h) and poly(Me acrylate) (PMA) (Tl/2 = 81.5 h) were indistinguishable from shunt controls. (9003-21-8 Poly(methyl acrylate)) Pretreatment of PMA tubing with autologous plasma in a paired trial significantly increased platelet half-life (P <0.05 vs. untreated PMA). This system offers an economical reproducible, sensitive, and biol. relevant method for assessment of the reactivity of artificial surfaces with platelets. 9002- 86-2*, 9002-89-0*, 29968-79-9*, 9003-21-8; 9003-20-7; 9003- 92-3; 9003-53-6; 9011-19-7*. 25609-79-9; 28825-23-2 8003 89 SI - CA/092/116962F AU - Sako E TI - Plasticised polyvinvl chloride material SO - Brit. PATENT NO. 1550260 08/08/79 (Green Cross Corp. ) LA - ENG AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Plasticised PVC, useful in the manuf. of blood-compatible prosthetics and containers and as a packaging material for foods, comprises 1 part PVC and 0.5-1.0 RNW 1802 rr iWmm 00009094 PVC PAGE parts of a polyurethane of OH no. 50-60 and softening point 68-72.degree, which is chromatog. pure. (9002-86-2 PVC) The polyurethane is derived from an alkylene or oxyalkylene diisocyanate and an ester of a carboxylic acid and an alc. both of which have .gtoreq.6 C atoms. Thus, Medidex was transparent* withstood sterilisation by ethylene oxide or high-pressure steam, showed good mech. properties esp. at low temps., and gave no toxic effect as a packaging material for food nor as a prosthetic material. RN - 9002-86-2 EM - 8010 90 SI - CA/091/050898Y AU - Hilado CJ ; Brauer DP AD - Fire Saf. Cent., Univ.San Francisco, San Francisco TI - Concentration-time data in toxicitytests and resulting relationships SO - J. Combust. Toxicol.; VOL 6, ISS MAY, 1979,136-49 LA - ENG CD - JCTOD AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Periodic analyses for CO and CH4 in the animal exposure chamber during pyrolysis of polyethylene at 800.degree, without forced air flow showed that the concns. of these compds. increased with exposure time. (74-82-8 Methane) These observations, and similar observations for polyurethane flexible foam, permitted the calcn. of CO toxicity in terms of death product concn. (DP) value, in addn. to flammability CO value. Obsd. DP exceeding the crit. DPCO of 47,200 ppm-min for CO may indicate that lethal exposures were reached earlier but not immediately manifested because of the time delay involved in physiol, processes. On the basis of DPCO, CO may be the sole toxicant in the case of polyethylene, polypropylene, polyoxymethylene polystyrene, polycarbonate, ethyiene-propylene-diene rubber, and wood. RN - 74-82-8; 630-08-0; 9002-81-7; 9002-86-2; 9002-88-4; 9003-07-0; 9003-53-6; 9003-56-9*, 9010-98-4; 9011-14-75 25038-54-45 25585-20-05 25766-59-05 27026-93-35 62238-79-3 EM - 8007 91 SI - CA/091/050498T AU - Hilado CJ 5 Cummings HJ 5 Casey CJ AD - Fire Saf. Cent., Univ. San Francisco, San Francisco TI - Toxicity of pyrolysis gases from plastics and elastomers SO - J. Elastomers Plast.5 VOL 11, ISS 1, 1979,3-14 LA - ENG CD - JEPLA AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Toxicity test data on 95 samples of plastics and elastomers, pyrolyzed in accordance with the University of San Francisco toxicity screening test method, were presented. The samples consisted of 50 solid polymers, 16 solid elastomers, 12 rigid cellular polymers, and 17 flexible cellular polymers. Data were obtained using the rising temp, program from 200.degree.-800.degree., and less extensive data RNW 1803 'I 00009095 PVC PAGE 39 were obtained using a fixed temp, of 800.degree.. RN - 9002-81-7; 9002-86-2; 9002-88-4; 9003-07-0; 9003-53-65 9003-56-9; 9008-66-6', 9010-98-4J 9011-14-75 9016-75-55 9041-80-95 24936-68-35 25038-54-45 25585-20-05 27026-93-35 32131-17-25 62238-79-3 EM - 8007 92 SI - CA/091/044481R AU - Chuang HY K 5 Crowther PE 5 Mohammad SF 5 Mason RG AD - Coll. Med. Univ. South Florida* Tampa TI - Interactions of thrombin and antithrombin III with artificial surfaces SO - Thromb. Res.5 VOL 14, ISS 2-3, 1979,273-82 LA - ENG CD - THBRA AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Thrombin adsorption onto Cuprcphane surfaces was not saturable at thrombin concns. of ltoreq.l mg/mL and gave adsorption isotherms distinct from those for 4 other proteins: albumin, fibrinogen, IgG* and anti thrombin III. (9002-04-4 Thrombin)(9000-94-6 antithrombin III) Kinetic analyses suggested 2 types of binding sites with thrombin-Cuprophane apparent dissocn. consts. (Kd) of 300 nM and 7190 nM, resp. Data from the competitive adsorption of thrombin on Cuprophane in the presence of albumin and IgG at both low and high thrombin concns. and the absence of such types of adsorption of thrombin on PVC support the concept of the presence of these 2 types of binding sites on Cuprophane. (9002-86-2 PVC) On the other hand, thrombin-PVC interaction resulted in a Langmuir type adsorption. IgG showed higher affinity for PVC (Kd = 35 nM) than did the other 4 proteins (Kd = 300-900 nM). A hypothesis that multiple types of binding sites that are specific for certain plasma proteins may exist on various artificial surfaces is proposed. RN - 9002-04-45 9000-94-65 9002-86-2 EM - 8007 93 SI - CA/095/208972N AU - Ohuchi J ; Misuno R 5 Miyo H ; Ohtsuka K 5 Mochi2uki Y AU - Furusawa A AD - Power React, and Nucl. Fuel Dev. Corp., Tokai TI - Acid digestion of chlorine-containing wastes SO - Tokai Works Semi-Annu. Prog. Rep.5 ISS PNCT831-79-02,, 1979,80-6 LA - ENG CD - TWSRD AB - CBAC COPYRIGHT: CHEM ABS Acid digestion process has been developed for Cl-contg. wastes such as PVC and neoprene rubber gloves, whose ratio to the Pu-contaminated wastes is 40X at the Pu-fuel facilities. (9002-86-2 PVC) Dechlorination values in the preliminary and 20 L-scale expts. almost agreed with each other. The dechlorination rate of PVC in H2S04 depends on the temp, and stirring rate. The effect of H2S04 concn. on PVC decompn. was negligible. RN - 9002-86-25 7664-93-9 RNW 1804 00009096 PVC PAGE AO EM - 8112 9A SI - CA/095/155736E AU - Ahling B AD - IV L, Stockholm TI - The emission of organic substances from waste incineration SO - Conf. Int. Trade Fair Recycling, Refuse Collect. Waste Treat. "ELMIA-AVFALL 795 1979,139-61 LA - ENG CD - A6ASA AB - CBAC COPYRIGHT: CHEM ABS The emission of HCB from the incineration of polychlorinated biphenyl and poly(vinyl chloride) waste, the destruction time of DDT and DDE, and the presence of CHA and chloroorgs. in flue gas from waste incineration are described. (118-7A-1 HCB)( 9002-86-2 PVCM50-29-3 DDTM72-55-9 DDE )(7A-82-8 Methane) RN - 118-7A-1J 9002-86-25 50-29-35 72-55-95 7A-82-85 92-52-A EM - 8111 95 SI - CA/095/1022A9S AU - Knoll JE 5 Midgett MR AD - Environ. Monitoring and Support Lab., Environ. Prot. Agency, Research Triangle Park TI - Quality assurance aspects of the collaborative testing of EPA Method 106 - determination of vinyl chloride from stationary sources SO - Spec. Conf.: Qual. Assur. Air Pollut. Meas., CProc.3 5 1979AA2-7 LA - ENG CD - A5QDA AB - CBAC COPYRIGHT: CHEM ABS Quality assurance procedures were applied to improve the value of data obtained in the collaborative testing of the EPA method 106, which is used at plants manufg. ethylene dichloride, vinyl chloride, and polyvinyl chloride and involves the extn. of an integrated gas sample from an effluent stream and the measurement of the vinyl chloride content by gas chromatog. (107-06-2 Ethylene dichloride)(75-01-A Vinyl chloride)(9002-86-2 Polyvinyl chloride) The techniques used in organising the test, in the acquisition of data, and in data anal, are described. The results of both a lab. and a field test are presented, and the applicability is discussed. RN - 107-06-25 75-01-A5 9002-86-2 EM - 8110 96 SI - CA/095/03713AJ AU - Gilbert B 5 Da Silva Netto JA TI - Slow release insecticidal composition SO - Bras. Pedido PI PATENT NO. 79 01868 11/20/79 (Instituto de Pesquisas da Marinha) LA - POR AB - CBAC COPYRIGHT: CHEM ABS Slow-release formulations are prepd. by incorporating insecticides into PVC or rubber. (9002-86-2 PVC) Thus, a compn. is given, contg. PVC (0.005-0.03 mm particle size) 25 kg, poiyoxyethylated nonylphenol 1.65 L, water 18 L, and RNW 1805 00009097 PVC PAGE 41 organophosphorus insecticide emulsion cone. 6.25 Kg. RN - 9002-86-2 EM - 8109 97 SI - CA/094/109425J AU - Wynn M i Roohk HV > Salimbeni J > Bartlett RH AD - Irvine Med. Cent., Univ. California, Orange TI - Platelet destruction as an ex vivo correlate of in vitro fibrinogen and platelet surface interaction SO - Artif. Organs! VOL 3, ISS Suppl., Proc. Meet. Int. Soc. Artif. Organs, 2nd, 1979,222-5 LA - ENG CD - ARORD AB - CBAC COPYRIGHT: CHEM ABS Large New Zealand white rabbits were placed on a simple veno-arterial bypass system without oxygenator or heat exchanger using PVC graphite-coated PVC-polyurethane, and latex rubber surfaces for tubing. The animal was heparinized and 510--platelets were injected. Vascular access, anticoagulation, flow parameters, and elapsed exptl. time were chosen to simulate both clin. conditions and the previous in vitro model (R. et al. 1976, 1977). Platelet turnover was measured during bypass, and final changes in platelet count and function noted. After 1 h the animal was sacrificed, and organ and tubing wall counts were obtained and compared to heart tissue as background. Relative activity in spleen correlated better with in vitro fibrinogen adsorption on the above surfaces than either in vitro or ex vivo platelet adherence. The fibrinogen adsorption is a much better index of surface thrombogenicity in moderate-to-high flow bypass than platelet adherence. RN - 9002-86-2 EM - 8104 98 SI - CA/094/109288S AU - Chuang H ; Sharma N 5 Mohammad S j Mason R AD - Coll. Med., Univ. South Florida, Tampa TI - Adsorption of thrombin onto artificial surfaces and its detection by an immunoradiometrie assay SO - Artif. Organs? VOL 3, ISS Suppl., Proc. Meet. Int. Soc. Artif. Organs, 2nd, 1979,226-32 LA - ENG CD - ARORD AB - CBAC COPYRIGHT: CHEM ABS Adsorption of .ltoreq.l mg/mL human alpha-thrombin onto Cuprophane PT-150 did not reach satn., although its adsorption onto PVC showed satn. of thrombin binding at .gtoreq.0.2 mg/mL. (9002-04-4 .alpha.-thrombin)(9002-86-2 PVC) A modified Langmuir plot confirmed the nonsatn. of thrombin adsorption on Cuprophane. In quant, studies of detn. of adsorbed thrombin, the data obtained with PVC were more reproducible than those with Cuprophane. A modification of the procedure of M. A. Shuman, et al. (1976) was used to produce antihuman alpha-thrombin antibodies. The antigen thrombin was inactivated by N-alpha-p-tosyl-L-lysine chloromethyl ketone (Glover G.5 Shaw E. 1971). Anti thrombin IgG was isolated from rabbit antiserum RNW 1806 00009098 PVC PAGE 92 by salt pptn., OE 22 column chromatog., and immunoadsorption on thrombin-Sepharose. Uptake of 1251-labeled anti thrombin IgG by PVC or PVC coated with human albumin was much less than by PVC coated with alpha-thrombin which could be used for quant, measurement. This immunoradiometric procedure should be useful in detection and quantitation of thrombin adsorbed to, or generated on, various biomaterials during in vivo or in vitro use of artificial organs. RN - 9002-09-95 9002-86-2 EM - 8109 99 SI AU AD TI SO LA CD AB RN EM CA/099/090291P Herzog V ; Horn H ; Opitz B Inst. Allg. Hyg. Med. Akad. Erfurt Desorption of ethylene oxide from gas-sterilized plastics and elastomers Z. Gesamte Hyg. Ihre Grenzgeb.5 VOL 25, ISS 5, 1979,386-9 GER ZHYGA CBAC COPYRIGHT: CHEM ABS Thermolabile materials and equipment employed in practical medical work are sterilized mainly with ethylene oxide. (75-21-8 Ethylene oxide) The toxic properties of this gas make it necessary to store the equipment sterilized in this manner in order to remove any traces of the gas adsorbed by the articles. Expts. with PVC, silicone rubber, polyethylene, ball catheters and latex rubber gloves show that PVC has the highest adsorption rate. (9002-86-2 PVC)(9002-88-9 Polyethylene) As a result, the alpha-value is highest in characterizing the removal process. The time required for removing the gas depends largely on the level at which the gas is considered medically harmless. The suggested level is 10 ppm, but this has not as yet been confirmed by bioassays. At room temp, and with forced ventilation, PVC should be stored for 7 days to reach this level. A change in the sterile packing or in the ambient temp, can reduce this time substantially. 75-21-8; 9002-86-2; 9002-88-9 8109 100 SI AU AD TI SO LA CD AB CA/099/019850Q Crider LB ; O'Mara MM ; Bowles RL Avon Lake Tech. Cent., BFGoodrich Chem. Div., Avon Lake A model for the diffusion of vinyl chloride monomer from PVC under various conditions of storage J. Vinyl Technol.; VOL 1, ISS 3, 1979,168-71 ENG JVTED CBAC COPYRIGHT: CHEM ABS A computer optimized exp. design involving 29 expts. was used to obtain a math, model of vinyl chloride (I) emission from granular PVC during storage in sealed 55 gal drums. (75-01-9 Vinyl chloride )(9002-86-2 PVC) The design variables were temp. (T in .degree.F), ventilation rate (V in turnover/h ), loading (L, (PVC vol.)/(storage vol.).times. 100], the initial concn. of I in resin (Co in ppm), and storage RNW 1807 00009099 PVC PAGE A3 time (t). Then C = Col.A7L0.37V-1.56CT6.0 exp-(2A.l + .00031Tt), where C is the ppb of I in the space above PVC. The model was used to predict C in 3 different warehouses. Excellent agreement between the calcd. and actual C was obtained. RN - 75-01-A; 9002-86-2 EM - 8102 101 SI AU TI SO LA AB RN EM CA/09A/00733AM Jozwik J ; Olszewski M * Puziewicz S ; Roman M Multistream settling tank for separating solids from liquids Pol. PATENT NO. 106296 12/31/79 (Polltechnika Warszawska) POL CBAC COPYRIGHT: CHEM ABS The title tank, which is used for sedimentation of solids from water and wastewater, contains baffles which divide liq. charged into the tank into several streams. The baffles are made from poly(vinyl chloride) sheets. (9002-86-2 Polytvinyl chloride)) 9002-86-2 8102 102 SI - CA/09A/020304W AU - Rhee GJ 5 Yu BS AD - Natl. Inst. Health, Seoul TI - Effect of synthetic resin container on the stability of FAD solution SO - Yakhak Hoe Chi; VOL 23, ISS 3-A, 1979.1A7-52 LA - KOR CD - YAHOA AB - CBAC COPYRIGHT: CHEM ABS The interaction between FAD soln. and synthetic resin containers made of PVC, polyethylene (PE), and polycarbonate (PC), was detd. and the effect of glycyrrhizin or malic acid on stabilization of FAD in aq. soln. was detd. by accelerated stability anal. (1A6-1A-5 FAD )(9002-86-2 Poly(vinyl chloride))(9002-88-A Polyethylene)(25766-59-0 PolycarbonateM1A05-86-3 Glycyrrhizin)(6915-15-7 Malic acid) FAD was detd. by spectrometry and by sepn. on paper chromatog. and metal ions were detected by at. absorption spectrophotometry; the ions were extd. from containers by means of Food and Additive Regulation Std. The thermal deccmpn. of FAD in aq. soln. was pseudo first-order reaction and it was inhibited by adding glycyrrhizin or malic acid to the soln. PVC, PE and PC containers accelerated the decompn. of FAD in soln. It is assumed that bivalent heavy metals in resin containers may catalyze the hydrolysis of FAD. The metals detected from the containers were Ca, Zn, Cu, Fe, Pb and Cd. The total amts, of detected metals from PVC were 6.2, PE, 5.5, and PC, 2.7 mug/cm2 which were proportional to the rate const, of FAD decompn. in aq. soln. RN - 1A6-1A-5; 9002-86-2*, 9002-88-A! 25766-59-0; 1A05-86-3; 6915-15-7! 7A39-89-65 7A39-92-1! 7AA0-43-9; 7AA0-50-8! 7AA0-66-6! 7AA0-70-2 EM - 8102 RNW 1808 00009100 PVC PAGE 44 103 SI AU AO TI SO LA CO AB RN EM 104 SI AU AD TI SO LA CD AB RN EM CA/093/224970Z Hasegawa H ; Sato M ; Okonogi K * Shimaoka A Tsuruta H Natl. Inst. Ind. Health, Kawasaki Examination of workers in polymerization process of vinyl chloride monomer (VCM) Ind. Health; VOL 17, ISS 3, 1979,153-85 ENG INHEA CBAC COPYRIGHT: CHEM ABS Data are given on the effects of occupational exposure to vinyl chloride monomer on blood pressure; serum guanosine triphosphate; blood catalase; blood platelets; reticulocytes; glutamic-oxalacetic transaminase, glutamic-pyruvic transaminase, alk. phosphatase, lactic dehydrogenase activity, lactic dehydrogenase isozyme activity, and lipids in the serum; vinyl chloride monomer in the blood; glycerides, free and total cholesterol; beta-lipoproteins; and fatty acids. (75-01-4 Vinyl chloride )(86-01-1 Guanosine triphosphate)(9001-05-2 Catalase )( 9000-97-9 Glutamic-oxalacetic transaminase )(9000-86-6 Glutamic-pyruvic transaminase)(9001-78-9 Alk. phosphatase)(9001-60-9 Lactic dehydrogenase)(57-88-5 cholesterol) 75-01-4; 86-01-1; 9001-05-2J 9000-97-9; 9000-86-6; 9001-78-9; 9001-60-9; 57-88-5; 9002-86-2 8101 CA/093/191284Y Haguenoer JM 5 Frimat P ; Cantineau A 5 Pollard F ; Bobowski R Inst. Med. Trav., Fac. Med., Lille Risks associated with vinyl chloride (MVC) and their prevention in a polymerization unit Arch. Mai. Prof. Med. Trav. Secur. Soc.; VOL 40, ISS 12, 1979,1115-30 FRE AMPMA CBAC COPYRIGHT: CHEM ABS The concns. of vinyl chloride (I) in the air of a factory which went on stream in 1976 were, during the 1977-8 period, 0.30-0.40 ppm near the polymn. reactors, 0.05-2.75 ppm near I recovery units, and 0.06-1.60 ppm near the polytvinyl chloride) driers. (75-01-4 Vinyl chloride )(9002-86-2 PVC) The high I concns. were due to tech, malfunctions. The factory workers, at that point, had not been affected by exposure to these I levels. 75-01-4*, 9002-86-2 8012 RNW 1809 00009101 PVC PAGE 45 105 SI - CA/093/137475Y AU - Takenishi S TI - Wastewater treatment SO - Jpn. Kokai Tokkyo Koho PATENT NO. 79162845 12/24/79 (Nisshin Spinning Co.* Ltd.) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Wastewater is treated with a water sol. salts* flocculated by adjusting to weakly alk. pH* then the floe is filtered out. Thus* Fe ammonium sulfate was added (500 ppm as Fe3+) to kitchen wastewater. NaOH was added to pH 9 to form Fe hydroxide floe* then filtered through a PVC membrane. (9002-86-2 PVC) Hexane extractables were reduced from 1300 ppm to 1.5 ppm. RN - 9002-86-25 10402-23-0 EM - 8012 106 SI - CA/093/108395S AU - Nishimaru Y 5 Tsuda Y 5 Saito F AD - Sch. Med.* Yokohama CityUniv., Yokohama TI - Evaluation of acute toxicity of smoke and gases from smoldering and burning plastic foams SO - Yokohama Med. Bull.5 VOL 30, ISS 1-4, 1979,47-60 LA - ENG CD - YMBUA AB - CBAC COPYRIGHT: CHEM ABS Mice became incapacitated from exposure to smoke and gases from burning polystyrene (PS), PVC* polyurethane* and urea resin foams or lauan wood. (9003-53-6 Polystyrene)(9002-86-2 PVC) The incapacitation times for PS were longer than those for lauan, and that for PVC were shorter than those for PS or lauan. The incapacitation time was much shorter at 550.degree, or 750.degree, for polyurethane foam or urea resin foam, resp. than at any heating temp, for the others. Cyanide was detected in blood in rabbits exposed to gases from polyurethane or urea resin foams. Abnormalities in the wave patterns of electrocardiograms and pneumatograms were most obsd. in the rabbits exposed to urea resin foam and PS foam gases. RN - 9003-53-65 9002-86-25 57-13-6 EM - 8010 107 SI - CA/093/100798E AU - Shevchenko AM 5 Shkurko GA 5 Grebtsov VN TI - Biological evaluation of the chronic effect of dust from a polyCvinyl chloride) mix SO - Gigiena i Toksikol. Plastmass, Kiev5 1979,145-8 LA - RUS CD - D3RAP AB - CBAC COPYRIGHT: CHEM ABS Title only translated. Polyvinyl chloride dust exposure evaluation Occupational exposure PVC dust evaluation RN - 9002-86-2 EM - 8009 RNW 1810 00009102 PVC PAGE 46 108 SI - CA/093/079127Y AU - Toth 0 ; Latorczai J AD - Borsodi Vegyi Komb., Kazinebarcika TI - Borsodi Vegyi Kombinat's role in environmental protection SO - Magy. Kem. Lapja; VOL 34, ISS 9, 1979,474-9 LA - HUN CD - MGKLA AB - CBAC COPYRIGHT: CHEM ABS Measures are described for the prevention of air and water pollution. Disposal and processing of wastes from the manuf. of N fertilizer and PVC are discussed. (9002-86-2 PVC) Future research activities are outlined. RN - 9002-86-2 EM - 8009 109 SI AU AU AD TI SO LA CD AB RN EM CA/093/078751K Miura T ; Nakamura S ' Matsunaga I ; Hayashi M ; Suenaka T Hi rata M *, Hara I Osaka Prefect. Inst. Public Health, Osaka Industrial hygienic survey of factories processing polytvinyl chloride) resin in Osaka Osaka-furitsu Koshu Eisei Kenkyusho Kenkyu Hokoku, Rodo Eisei Hen; VOL 17,, 1979,45-53 JPN OFKIA CBAC COPYRIGHT: CHEM ABS The title survey covered extrusion, paste-processing, and injection molding plants over the Apr.-Dec. period in 1977. Contamination of environmental air by vinyl chloride monomer was .ltoreq.26 ppm. (75-01-4 Vinyl chloride) 75-01-4; 9002-86-2 8009 110 SI - CA/093/089772U AU - Shkurko GA TI - Study of granule formation of pulmonary macrophages exposed to poly(vinyl chloride) plastic dust SO - Gigiena i Toksikol. Plastmass, Kiev; 1979,149-55 LA - RUS CD - D3RAP AB - CBAC COPYRIGHT: CHEM ABS Title only translated. PVC lung macrophage RN - 9002-86-2 EM - 8009 111 SI AU TI SO LA CD AB CA/093/089771T Borisenko NF ; Pushkar MP ; Goryachkovskii VS Participation of an immune component in the mechanism of the damaging action of epoxy and poly(vinyl chloride) compounds Gigiena i Toksikol. Plastmass, Kiev; 1979,119-25 RUS D3RAP CBAC COPYRIGHT: CHEM ABS Title only translated. PVC compd volatile material immunity Epoxy compd volatile material RNW 1811 M "I il 00009103 PVC PAGE 97 JLL immunity Immunity PVC epoxy compd volatile compd RN - 9002-86-2 EM 8009 SI _ CA/093/089633Z AU - Malinovskii IF TI Some hematological and biochemical blood indexes in rats poisoned with anticorrosion coatings prepared from perchlorinated poly(vinyl chloride) resins SO - Tr Belorus. Nil Eksperim. Vet.) ISS 17, 1979,159-6 LA - RUS CO - D3RAP AB " CBAC COPYRIGHT: CHEM ABS Title only translated. Perchlorinated polyvinyl chloride resin blood RN - 9002-86-25 39322-32-2; 67556-82-5 EM 8009 SI _ CA/093/053929M AU - Barber TA ; Lambrecht LK 5 Mosher OL J Cooper SL AD - Dep. Pathol., Univ. Wisconsin, Madison TI Influence of serum proteins on thrombosis and leukocyte adherence on polymer surfaces SO - Scanning Electron Microsc.; ISS 3, 1979,881-90 LA - ENG CO - SEMYB AB CBAC COPYRIGHT: CHEM ABS The effects of serum protein preadsorption on short-term thrombosis on polymeric surfaces were investigated with an ex vivo shunt model in concert with radiolabeling, immunolabeling, and scanning (SEM) and transmission electron microscopy. Serum proteins preadsorbed onto silicone rubber (SR) and poly(vinyl chloride) (PVC) surfaces included: fibronectin (FN), anti-fibronectin (AFN), von Willebrand factor (vWF), alpha2-macroglobulin (alpha2M) albumin (Alb), IgG, mixed gamma-globulins (gammaIG), and FN followed by anti-FN IgG (FN-AFN). Thrombotic responses to preadsorbed serum proteins differed notably in regard to the total amts, of thrombus formed on shunt surfaces, role of fibrin in initiating thrombosis, and the participation of leukocytes other than platelets, i.e. monocytes (MN) and polymorphonuclear neutrophils (PMN) in thrombosis. Both Alb and alphaZM pre-adsorbed onto the PVC surface decreased total amts, of thrombus deposited and modulated the leukocyte response with respect to that seen on uncoated PVC. Pre-coating of the SR test surface with FN, AFN, FN-AFN, vWF, IgG, and gammalg produced variable increases in total amts, of thrombus detectable by SEM and altered the patterns of initial leukocyte adherence. Both gammalg and IgG pre-coatings enhanced the response of MN to this surface and decreased relative nos. of platelets contained in thrombi. In vitro assays of the effect of the tested proteins on the migration, chemotactic response, and aggregation of mixed canine leukocyte suspensions indicated that the role of MN and PMN in thrombosis in this model is related to some extent to the ability of surface-adsorbed proteins to modulate these classical RNW 1812 % a 00009104 PVC PAGE 48 leukocyte functions. Apparently* the complex response of flowing blood to polymeric surfaces may be influenced by the ability of serum proteins to modify leukocyte as well as platelet activity in thrombosis and are suggestive of the application of modulators of leukocyte function in regulating thrombotic reactions on polymeric surfaces. RN - 9001-27-85 9002-86-2 EM - 8009 114 SI AU AD TI SO LA CD AB RN EM CA/093/031128X Sarkos CP Natl. Aviat. Facil. Exp. Cent.. Fed. Aviat. Adm., Atlantic City Recent test results from the FAA/NAFEC cabin fire safety program NBS Spec. Publ. (U. S.JJ VOL 540,, 1979,589-623, 712 ENG XN8SA CBAC COPYRIGHT: CHEM ABS The smoke prodn. tests for 3 kinds of materials used in aircraft seat cushions show the smokiest material is urethane foam, and the least smoky polysulfone, when the heat fluxes are at 2.2 and 5 Btu/ft2 s. At 7.5 and 10 Btu/ft2 s, polysulfone is the smokiest material; wool, the least-smoky. In the toxic gas emission tests for fabrics, a cotton rayon blend, cotton, and rayon produce CO 348, 255, and .apprx.150 mg/g resp.; the modacrylic drape, the wool, and wool/nylon blends produce HCN 64, 42, and 37 mg/g resp.; for flooring materials, wool carpets produce HCN .apprx.15 mg/g; for thermoplastics, and the polycarbonates produce CO 400 mg/g with HBr yield but no HCN. The ABS/PVC CO .apprx.50 mg/g have high HCl and low HCN yields! for cargo liners, the polyesters produce HCN <10 mg/g', and for transparent es, polycarbonate produce CO 345 mg/g. The test conditions in the combustion tube furnace are furnace temp. 600.degree., sample wt. 250 mg, airflow rate 2 L/min, and test duration 5 min. 74-90-8; 630-08-0! 7647-01-0; 9002-86-2! 9003-56-9; 10035-10-6 8008 115 SI AU AU AD TI SO LA CO AB CA/093/030943X Handa T ! Suda K 5 Nagashima T J Kaneko K ! Yamamura T Takahashi Y ! Suzuki H ; Saito F Fac. Sci., Sci. Univ. Tokyo, Tokyo Instrumentation for the size determination of submicron particulates systems by the sideway light scattering method and the characteristics of smokes from polymerized materials in fire NBS Spec. Publ. (U. S.); VOL 540,, 1979,626-712 ENG XNBSA CBAC COPYRIGHT: CHEM ABS The design of the smoke detector using the low output He-Ne laser particle counter and the sideway light scattering optical system is discussed. The instrument with 9 channels detects 0.1-10 mum particles at .ltoreq.1010 without coincidence loss! and <1013 particles/m3 with the loss correction. Simultaneous measurements of the environmental atm. and the welding samples by this system and the com. counter show RNW 1813 00009105 PVC PAGE 49 good agreements in the size distribution for particulates >0.3 mu.m. The scattering cross sections of polypropylene smokes measured by the turbidities and estd. from the size distribution also show a good agreement. RN - 7440-01-9; 7440-59-7; 9002-86-2; 9003-07-0 EM - 8008 116 SI AU AD TI SO LA CD AB RN EM CA/093/031741S Ohba T Kokuritsu Eisei Shikenjo Qualities of plastic containers and rubber stoppers for blood infusion solution and thei-r tests Koen Yoshishu - Nippon Yakugakkai Kanto Shibu Taikai 23rd; 1979,76-80 JPN 42PXA CBAC COPYRIGHT: CHEM ABS Tests were designed for the examn. and standardization of the quality of plastic containers and rubber stoppers. Rubber stoppers and containers made of polyethylene, polypropylene, polyvinyl chloride, and contg. di-2-ethylhexyl phthalate should be tested for the contents of heavy metals, small particles, and sol. substances by taking UV spectra of the solns. (9002-88-4 Polyethylene ) (9003-07-0 PolypropyleneM9002-86-2 Polyvinyl chlorideM117-81-7 Di-2-ethylhexyl phthalate) The concns. of Cd, Pb and Zn should not exceed 0.2* 1, or 0.2 mug/mL. However, normally the solns. contain 0.3-0.4 mug of Zn/mL. 9002-88-45 9003-07-05 9002-86-2; 117-81-7 8008 117 SI AU AD TI SO LA CD AB CA/093/013061R Izgu E ; Canefe K Eczacilik Fak.* Ankara Univ. Ankara The sorption of pharmaceuticals by plastics produced in Turkey Bilim Kongr. Tip Arastirma Grubu Tebligleri, Turk. Bilimsel Tek. Arastirma Kurumu* 6th; 1979,237-46 TUR 42ROA CBAC COPYRIGHT: CHEM ABS The sorption of vitamin B, atropine sulfate, diphenhydramine-HCl* procaine, chloramphenicol, (NH4)2C03 AcOH and NaCIO in aq. solns. by polyethylene, polysytrene* and PVC was studied. (68-19-9 vitamin BM55-48-1 Atropine sulfate)(147-24-0 Diphenyldramine hydrochloride )(59-46-1 Procaine)(56-75-7 Chloramphenicol)(10361-29-2 Ammonium carbonate)(64-19-7 Acetic acid)(9002-88-4 Polyethylene )(9003-53-6 polysytrene)(9002-86-2 PVC) At 25.degree, and 40.degree, for a storage time of 90 and 63 days, resp. appreciable sorption of these pharmaceuticals by different plastics was not obsd. The wt. loss of pharmaceuticals obsd. in solns. in the presence of plastics was attributed to decompn. of these compds. during storage. 68-19-9; 55-48-1; 147-24-0; 59-46-1; 56-75-7; 10361-29-2; 64-19-7; 9002-88-45 9003-53-65 9002-86-25 7681-52-9 RNW 1814 00009106 PVC PAGE 50 EM - 8007 118 SI AU AD TI SO LA CD AB RN EM CA/092/203554F Zalewski M ; Zabojszcz WM ; Brzezicka-Bak M Zakl. Mater. Med., Inst. Lekow, Warsaw Physicochemical and biological studies of plastic materials intended for long-term contact with blood Acta Haematol. Pol.; VOL 10, ISS 9, 1979,259-73 POL AHPLB CBAC COPYRIGHT: CHEM ABS Natural and silicone rubber tubes in contact with blood caused considerable protein adhesions and Hb release from the erythrocytes, and were more thrombogenic than PVC although they complied with the required quality stds. (9002-86-2 PVC) Adhesion increased with the roughness of the surface, and depended on the migration of components specific to each material from the tubes into the serum, and was higher for PVC and lower for silicone rubber after cleaning with EtOH. 9002-86-2J 7440-66-6; 9002-88-4 8007 119 SI AU TI SO LA CD AB RN EM CA/092/203413J Kataeva SE Sanitary-chemical studies of poly(vinyl chloride) compositions intended for the production of packaging for household chemicals Khim. Prom-st., Ser.: Toksikol. Sanit. Khim. Plastmass; ISS 4, 1979,22-3 RUS KSTPO CBAC COPYRIGHT: CHEM ABS Thin-layer and gas-liq. chromatog. confirmed the migration of plasticizers and stabilizers from PVC packaging materials into distd. water or hexane. (9002-86-2 Polyvinyl chloride) At pH 7-8.5 the migration of org. eompds. into distd. water after 30 days at 40.degree, was: dioctyl phthalate 0.12, org. tin eompds. 0.025-0.04 mg/L, cadmium stearate 0.13-0.25'mg/L. (117-81-7 Dioctyl phthalate)(2223-93-0 cadmium stearate) In hexane after 3-10 days the results were: dioctyl phthalate 1.5-50, org. tin stabilizers 0.18-0.24 and cadmium stearate 0.23-0.28 mg/L. 9002-86-2*, 117-81-7; 2223-93-0 8007 120 SI AU AD TI SO LA CO AB CA/092/185040D Ducloux M Cent. Rech. Croix Berny, Rhone Poulenc Ind., Antony Methods for the evaluation of the reactions of materials in a fire Ber. Int. Kolloq. Verhuetung Arbeitsunfaellen Berufskr. Chem. Ind.; VOL 6th,, 1979,299-310 FRE BIKID CBAC COPYRIGHT: CHEM ABS The combustion of 16 fire-resistant synthetic wall coverings demonstrated a simultaneous max. in toxic emissions, e.g., heat, smoke, and CO. The behavior of a RNW 1815 00009107 PVC PAGE 51 product in a -fire cannot be predicted from the main constituent > e.g. certain PVC-based nail coverings were very dangerous while others showed excellent overall behavior. The materials were ranked by flammability tests, by heat release rates and pollutant levels generated* and by the toxic effects of the combustion gases on rabbits. RN - 630-08-05 9002-86-2 EM - 8006 121 SI - CA/092/184996H AU - Kenson RE AD - Oxy-Catal., West Chester TI - Engineeredsystems for the control oftoxic chemical emissions 50 - Proc.*Annu. Meet. - AirPollut.Control Assoc.* VOL 72nd* ISS 2* 1979*Paper No. 17.4, 15 pp. LA - ENG CD - PRAPA AB - CBAC COPYRIGHT: CHEM ABS The design of engineered systems for control of vinyl chloride emissions in PVC plants and for benzene control in petrochem. operations is described. (75-01-4 Vinyl chloride)(9002-86-2 PVC)(71-43-2 Benzene) Using the engineered systems approach, toxic emission control systems which readily meet stringent emission stds. were developed which are more cost-effective than std. systems. RN - 75-01-45 9002-86-2; 71-43-2 EM - 8006 122 51 - CA/092/184914E AU - Ruiz Alonso C TI - Vinyl chloride* its harmful effects and analytical control SO - Rev. Fac. Farm. Univ. Cent. Venez.; VOL 44* 1979*37-64 LA - SPA CD - RFFVA AB - CBAC COPYRIGHT: CHEM ABS The manuf. and uses of poly(vinyl chloride) plastics and air pollution* carcinogenicity* and anal, detection of vinyl chloride by gas chromatog. are reviewed with 18 refs. (9002-86-2 Poly(vinyl chloride))(75-01-4 Vinyl chloride) RN - 9002-86-2*, 75-01-4 EM - 8006 123 SI - CA/092/168468G AU - Okada T TI - Incineration of organic substance containing chlorine SO - Jpn. Kokai Tokkyo Koho PATENT NO. 79124894 09/28/79 (Hitachi, Ltd. ) LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Org. substances contg. Cl, e.g., waste poly(vinyl chloride* are mixed with C particles as a combustion aid and incinerated in fluidized beds, e.g.* of sand* while water is sprayed on the bed to form HCl* which is recovered. (9002-86-2 Poly(vinyl chloride) RN - 9002-86-2; 7647-01-0; 7782-50-5 EM - 8006 RNW 1816 41 00009108 PVC PAGE 52 124 SI - CA/092/169179A AU - McRea JC ; Kim SW AD - Dep. Pharm., Univ. Utah, Salt Lake City TI - Prostaglandin releasing polymers for nonthrombogenic surfaces SO - Plast. Med. Surg.; VOL 3rd.,, 1979,Paper No. 31, 7 pp. LA - ENG CD - PMSUD AB - CBAC COPYRIGHT: CHEM ABS Platelet adhesion and aggregation at the blood/polymer interface result in thrombus formation. Utilizing the concept of controlled release delivery of prostaglandins from polymer matrices an immediate approach can be applied to reduce adhesive activity of platelets approaching the polymer surface. The development for fabrication of dispersed monolithic prostaglandin/polymer systems, the characterization of release behavior, the comparison of mech. properties of the monolithic system to control polymers as well as the efficacy of these systems to prevent platelet adhesion and their duration of activity are described. RN - 745-65-3; 9002-86-2; 35121-78-9*, 41598-07-6 EM - 8006 125 SI - CA/092/169176X AU - Biggs MS ; Baldwin J AD - PVC Div. Br. Ind. Plast. Ltd., Aycliffe/Durham TI - A flexible PVC compound for long-term contact with human tissue SO - Plast. Med. Surg.; VOL 3rd.,, 1979,Paper No. 7, 11 pp. LA - ENG CD - PMSUD AB - CBAC COPYRIGHT: CHEM ABS An alternative PVC formulation using polyadipate as plasticizer was developed for medical disposable devices. (9002-86-2 PVC) This has improved resistance to plasticizer extn. While it appears tech, satisfactory, evidence is still being gathered to confirm its toxicol. suitability. RN - 9002-86-2*, 77-90-7; 88-99-3*, 117-81-7*, 124-04-9*, 528-44-9; 24937-78-8; 25085-46-5; 25119-90-8 EM - 8006 126 SI - CA/092/152568D AU - Moeckel W ; Friedrich H *, Steffers F ; Haeussler G 5 Niklas N AU - Seifert A ; Voigt K TI - Treatment of wastewaters containing polymer dispersions SO - Ger. (East) PATENT NO. 138057 10/10/79 (VEB Chemische Werke Buna) LA - GER AB - CBAC COPYRIGHT: CHEM ABS In the title process, power plant fly ash is added to break the emulsion and sep. the polymer, and the resulting sediment is burned for power or used as a soil amendment. Thus, 1.0 m3 wastewater from nonwoven fabric prepn. contq. .apprx.0.6X carboxylated nitrile rubber is stirred with 28.0 kg brown coal filter ash contg. 21/i CaO and allowed to stand for .apprx.30 min, giving a clear, essentially polymer-free supernatant which is discharged to sewers, and a friable, nontacky residue which can be filtered from residual water. + RNW 1817 t 00009109 PVC PAGE 53 RN - 9002-86-2 EM - 8005 127 SI - CA/092/134649B AU - Staab J AD - Hartmann und Braun A.-G.t Frankfurt TI - Extraction grating for sampling wastewater heavily contaminated with solids SO - Gewaesserschuts, Wasser, Abwasser; VOL 39* ISS Ionensel. Elektroden Messung Wasser Abwasser, 1979*279-84 LA - GER CD - GWABD AB - CBAC COPYRIGHT: CHEM ABS The design and operating parameters of the title app.* consisting of a frame of rigid PVC, are described. (9002-86-2 PVC) RN - 9002-86-2 EM - 8005 128 SI - CA/092/134540J AU - Kasaj M AD - Vysk. Ustav Dopravny, Zilina TI - Inflammable dusts and their physical properties from the point of view of fire protection SO - Chem. Prum.; VOL 29, ISS 12, 1979,653-5 LA - SLO CD - CHPUA AB - CBAC COPYRIGHT: CHEM ABS The explosive properties of dusts and aerosols of flour, cocoa, tobacco, wood, cork, tea, S, starch, sugarr, Al, cellulose acetate, phenol-formaldehyde resin, urea-formaldehyde resin, polyacrylonitrile, polyamides, polyethylene, polystyrene, polylvinyl ale.), polytvinyl chloride), synthetic rubber, and ebonite are discussed. (9005-25-8 Starch)(57-50-1 Sucrose)(9004-35-7 Cellulose acetate)(9003-35-4 Phenol-formaldehyde copolymer)(9011-05-6 Urea-formaldehyde copolymer)(25014-41-9 Polyacrylonitrile )(9002-88-4 Polyethylene)(9003-53-6 Polystyrene)(9002-89-5 Polytvinyl alcohol))(9002-86-2 Polytvinyl chloride)) Flash points and lower concn. limits of explosive aerosols of these materials are given. RN - 9005-25-85 57-50-15 9004-35-75 9003-35-45 9011-05-65 25014-41-95 9002-88-45 9003-53-65 9002-89-55 9002-86-25 7429-90-55 7704-34-9 EM - 8005 129 SI - CA/092/153252H AU - Semler M TI - Ion-selective electrode SO - Czech. PATENT NO. 176578 01/15/79 LA - CZE AB - CBAC COPYRIGHT: CHEM ABS An ion-selective electrode with an active component embeded in a polymeric membrane was prepd. by fixation and sealing of the membrane was prepd. by fixation and sealing of the membrane in an electrode body. Thus, a polytvinyl chloride (I) membrane contg. a soln. of valinomycin in dipentyl RNW 1818 00009110 PVC PAGE 54 phthalate was glued to a I sealing ring and fixed between a threaded cap and the threaded hollow electrode body wade of Teflon. The inner surface a membrane was coated with agar and the K-selective electrode* contg. a ref. electrode* was filled with 0.1 M KC1. RN - 2001-95-85 9002-86-2 EM - 8005 130 SI AU AD TI SO LA CD AB RN EM CA/092/153121Q Handlos V R. Dan. Sch. Pharm.* Copenhagen Distribution and determination of gas residuals in formaldehyde-steam sterilised materials Plast. Med. Surg.; VOL 3rd.*, 1979,Paper No. 21* 10 pp. ENG PMSUD CBAC COPYRIGHT: CHEM ABS HCHO-steam sterilization was examd. with special ref. to gas residuals in materials sterilized in Danish hospitals. (50-00-0 Formaldehyde) Two exptl. autoclaves were constructed to study the effects of the construction and the process design on the HCHO residuals. The distribution of HCHO and the permeability of different plastic materials to HCHO was measured. 50-00-0J 9002-86-2; 9002-88-4; 9003-07-0; 25014-41-9; 25038-54-4; 25038-59-9 8005 131 SI AU AD TI SO LA CD AB RN EM CA/092/153096K Wi lsnack RE ; Bernadyn SA Huntingdon Res. Cent., Div. Becton Dickinson Co.* Brooklandvilie Blood compatibility of medical device materials as measured by lymphocyte function Biomater., Med. Devices, Artif. Organs; VOL 7, ISS 4* 1979,527-46 ENG BMDOA CBAC COPYRIGHT: CHEM ABS Bovine lymphocyte compatibility of a variety of device materials was assessed by quantification of their effect on phytohemagglutinin-mediated lymphocyte activation in a whole blood assay. Samples of polypropylene, polyethylene, stainless steel, Teflon, polycarbonate, silicone rubber, and some polyurethane proved compatible with lymphocytes. (9003-07-0 Polypropylene )(9002-88-4 Polyethylene )(9002-84-0 Teflon) PVC plastics and rubber yielded the largest proportion of lymphosuppressive samples. (9002-86-2 Polyvinyl chloride) The lymphocyte inactivation manifested characteristics suggestive of specific receptor alteration, demonstrated typical dose response kinetics, and proved a more sensitive indicator of specific aspects of blood compatibility than hemolysis. Most lymphosuppressive materials failed to induce hemolysis under the defined test parameters. 9003-07-0; 9002-88-4; 9002-84-0; 9002-86-2? 11107-04-3 8005 RNW 1819 00009111 PVC PAGE 55 132 SI - CA/092/153013F AU - Huettenrauch R ; Jacob J AD - Wiss. Lab., VEB Jenapharm, Jena TI - Molecular galenics. 42. Combination of various modes of binding in tablets SO - Pharmazie; VOL 34, ISS 9, 1979,572 LA - GER CD - PHARA AB - CBAC COPYRIGHT: CHEM ABS Tablets were prepd. from polyCvinyl chloride) (PVC) and cellulose (I) mixts. (9002-86-2 Polyvinyl chlorideM9004-34-6 Cellulose) The hardness of the tablets was min. at 10/ I, whereas the disintegration time decreased exponentially to 40/ I. Thus H bond breaking had more effect on disintegration than the breaking of van der Waals bonds. Lou concns. of I caused a decrease in tablet hardness by disrupting the van der Walls bonds in PVC, whereas at higher concns. the H bonds in I were stronger than their van der Waals bonds. RN - 9002-86-25 9004-34-6 EM - 8005 133 SI - CA/092/141321S AU - Hilado CJ ; Cumming HJ , Casey CJ AD - Fire Saf. Cent., Univ. San Francisco, San Francisco TI - Relative flammability and toxicity of pyrolysis gases from cellular plastics SO - J. Cell. Plast.; VOL 15, ISS 4, 1979,205-10 LA - ENG CD - JCUPA AB - CBAC COPYRIGHT: CHEM ABS Cellular plastic of different generic types were evaluated for the toxicity of pyrolysis gases, and the HC value of these gases were used in the comparison of their relative flammability on the same basis of lethality as reported previously. Polyester and polyether urethane flexible foams appeared to be more of a flammable hazard than a toxicity hazard, in comparison to other materials. Among flexible foams, polychloroprene was the least toxic under the exptl. conditions tested. (9010-98-4 Polychloroprene) Polystyrene was the least toxic among rigid foams tested. (9003-53-6 polystyrene) Imide-type foams seemed to exhibit the greatest toxicity among both flexible and rigid forms. In general, increasing char yield appeared to result in decreased flammability and in decreased toxicity in the case of some materials. RN - 9010-98-4; 9003-53-6; 9002-86-2; 9002-88-4; 27026-93-3; 53112-45-1; 62238-79-3 EM - 8005 RNW 1820 00009112 PVC PAGE 56 134 SI - CA/092/135482D AU - Tasch RJ ; Patolia NP TI - Peelable packaging SO - Brit. PATENT NO. 1548306 07/11/79 (Acme Backing Corp.) LA - ENG AB - CBAC COPYRIGHT: CHEM ABS A heat sealed peelable package, useful for surgical dressings and goods, comprises 2 sheets of impermeable material, e.g. metal foil, secured together by an adhesive coating contg. nitrocellulose (I) and poly(vinyl acetate) (II) or PVC. (9003-20-7 Poly(vinyl acetate ))(9004-70-0 Nitrocellulose)(9002-86-2 PVC) The adhesive coating remans peelable after exposure to heat sterilisation temps. (.gtoreq.250.degree.F ). Thus, metal foil panels were coated about their peripheries with a compn. contg. 17.5 parts of a 70.6X soln. of II and 7.28 parts of a 29.4X soln. of I in toluoi/MeCOEt. The coated foils were heat-sealed together to form a leakproof package which remained peelable after autoclaving at 250-275.degree.F. RN - 9003-20-7J 9004-70-0; 9002-86-2 EM - 8005 135 SI AU AD TI SO LA CD AB RN DTG EM CA/092/135350J Wildevuur CR H *, Ten Duis HJ ; Van den Dungen JJ A ; De Jong JC F Dep. Exp. Surg., Univ. Groningen, Groningen Improvements in Hemocompatibi1ity of extracorporeal circuits Plast. Med. Surg.; VOL 3rd.,, 1979,Paper No. 36, 8 pp. ENG PMSUD CBAC COPYRIGHT: CHEM ABS In a single PVC tubing circuit for extracorporeal circulation for open heart surgery little effect was seen on erythrocytes during perfusion. (9002-86-2 PVC) Decrease of erythrocyte nos. postoperatively, however, showed an early elimination of affected erythrocyte. A severe momentary drop both in platelet and leukocyte nos. reflected the initial effect of blood-surface contact; this effect is partly reversible. This drop was quickly restored in a group with Si-free silicone rubber tubing compared to PVC. During perfusion small hemolysis occurred with roller and rotor pumps while higher values were obsd. in centrifugal pumps. Postoperatively, erythrocyte nos. decreased most in roller and centrifugal pump while were less with the rotor pump. Platelets were sensitive to blood/gas contact and improvement of hemostasis in open heart surgery can be obtained by using a membrane oxygenator and by applying controlled suction. Treatment with a continuous PGE1 infusion during bypass inhibited platelet adhesion. (745-65-3 PGE1) 9002-86-2; 745-65-3 BLOOD CONCENTRATIONS 8005 RNW 1821 00009113 PVC PAGE 57 136 SI - CA/092/135349R AU - Sederel LC > Van der Does L > Beugeling T > Van Duijl J AU - Bantjes A AD - Dep. Chem. Technol., Twente Univ. Technol. TI - Anticoagulant activity of polyelectrolytes and their behavior in surface coatings 50 - Plast. Med. Surg.; VOL 3rd.** 1979*Paper No. 35. 8 pp. LA - ENG CD - PMSUD AB - CBAC COPYRIGHT: CHEM ABS Polyelectrolyte (PE) anticoagulants were prepd. by modifying polytcis-1*4-isoprene ) with addn. of chlorosulfonyl isocyanate followed by reaction with NaOH to give -CCH2CMe(NHS03Na)CH(C02Na)CH2]n-with .apprx.60Z double bond conversion. The sulfonate groups were not stable to acid but heating in 2 M NaOH did not result in large differences in chem. structure of PE; decrease in mol. wt. resulted* however. No change in anticoagulant activity was obsd. Surfaces of unrouted PVC showed longer clotting times than glass. (9002-86-2 PVC) Coating PVC with a highly purified tridodecylroethylammoniurn chloride-PE complex increased clotting time. Release of PE occurred on coated PVC tubes in contact with plasma. Thus* the coating was not stable so covalent coupling of PE to polymer surfaces should be investigated. RN - 9002-86-2? 1189-71-5; 9003-31-0 EM - 8005 137 51 - CA/092/135249H AU - Carli F ; Italiano P AD - Pharm. Technol. Lab.* Carlo Erba Inst. Therap. Res.* Milan TI - Effect of microstructure on liquid capillary penetration into porous drug carriers SO - Charact. Porous Solids* Proc. Symp.; 1979*369-74 LA - ENG CD - 42EBA AB - CBAC COPYRIGHT: CHEM ABS The relevance of capillary penetration into the pore network of drug delivery systems based on porous carriers is emphasised. Exptl. data include the investigation of water penetration into model porous drug carriers prepd. by embedding aspirin in inert polymer matrices. (50-78-2 Aspirin) Mercury porosimetry measurements showed that the kinetics of the capillary process was strongly affected not only by the wettability and mean pore size of the matrix, but also by its pore sise distribution. By heating the matrices* their pore structure was profoundly modified and thereby their capillary penetrability, both as degree of pore vol. satn. and as rate of penetration. An example is also given of how the capillary characteristics influence the drug diffusion from the porous carrier. RN - 50-78-2*, 9002-86-2; 9003-22-9; 25135-99-3*, 39301-09-2 EM - 8005 RNW 1822 00009114 PVC PAGE 58 138 SI AU AD TI SO LA CD AB RN EM 139 SI AU AD TI SO LA CD AB RN EM 140 SI AU AD TI SO LA CD AB RN EM CA/091/128579S Stief K Umweltbundesamt Berlin* Berlin Sealing of landfill bases - new research results Beih. Muell Abfall; VOL 15,, 1979,71-85 GER BMUAD CBAC COPYRIGHT: CHEM ABS After 1 yr. sealing compns. contg. asphalt lost pressure resistance but retained impermeability. Leaks occurred because of inhomogeneities in the mixt. Asphalt layers remained impermeable. Polymer sheets did not lose resiliency, tear resistance, or permeability, even when swollen. 9002-86-25 9002-88-4*, 9003-07-0*, 9003-29-6; 9008-08-6 7910 CA/091/128578R Woebken K Wasserwirtsch. Brake Experiences in waterproofing the landfills at Rahd and Galing with PVC and HDPE Beih. Muell Abfall; VOL 15,, 1979,37-9 GER BMUAD CBAC COPYRIGHT: CHEM ABS Leachate-resistant linings of polytvinyl chloride) and high-d. polyethylene were joined by welding and used to seal ore tailings contg. jarosite. (9002-86-2 Polyvinyl chloride)(9002-88-4 Polyethylene)(12207-14-6 Jarosite) The linings prevented leaching of heavy metals and S042-. 9002-86-2*, 9002-88-45 12207-14-6 7910 CA/091/128266N Hilado CJ ; Cumming HJ ; Murphy RM Fire Saf. Cent., Univ. San Francisco, San Francisco Smoke density of materials by various methods SAMPE Q.; VOL 10, ISS 3, 1979,42-5 ENG SAMOA CBAC COPYRIGHT: CHEM ABS Various synthetic and cellulosic materials were evaluated for smoke d., using the gravimetric method of the Arapahoe smoke chamber and the optical method for the Natl. Bureau of Stds. (NBS)-Aminco smoke chamber. Arapahoe smoke data are presented on the basis of both initial wt. and wt. loss, and NBS-Aminco smoke data are presented on the basis of both nonpiloted (smoldering) and piloted (flaming) conditions. 9002-86-2*, 9002-88-4*, 9003-07-0 5 9003-53-6 5 9003-54-7*, 9003-56-9*, 9011-14-7; 27837-76-9; 63798-89-05 69771-69-3 7910 RNW 1823 00009115 PVC PAGE 59 191 SI - CA/091/128947K AU - Suess W 5 Seidel I AD - Klin. Hubertusburg, Wermsdorf TI - Effect of the nature of polymers on the release of water-soluble active principles from active principle-polymer embeddings SO - Pharmasie; VOL 34, ISS 3, 1979,195-6 LA - GER CD - PHARA AB - CBAC COPYRIGHT: CHEM ABS The release of KCl with H20 from polystyrene, poly(vinyl chloride), vinyl chloride-vinyl acetate copolymer, poly(Me methacrylate), poly(vinyl acetate), and poly(vinyl butyral) embeddings was studied. (9003-53-6 Polystyrene)(9002-86-2 Poly(vinyl chloride))(9003-22-9 Vinyl chloride-vinvl acetate copolymer)(9011-14-7 Poly(methyl methacrylate))(9003-20-7 Poly(vinyl acetate)) KCl (<80 mu) was treated with polymer solns. or gels, the org. solvent removed, and the KCl-polymer mixt. milled. Release studies indicated the org. solvent had no effect, that the rate of release was proportional to the H20 absorption of the polymer and inversely proportional to the glass transition temp., and the active principle release was influenced by the microstructure of the embedding medium. RN - 9003-53-6? 9002-86-2; 9003-22-9; 9011-14-7; 9003-20-7 EM - 7910 142 SI AU AD TI SO LA CD AB RN EM CA/091/112427E Silman B Medtronic, Inc., Minneapolis Measurement of surface contamination using a contact angle goniometer NBS Spec. Publ. (U. S.); VOL 400-50,, 1979,101-3 ENG XNBSA CBAC COPYRIGHT: CHEM ABS A contact angle goniometer was used to evaluate org. contamination on implantable pulse generators. Wettability and surface contamination are important in the context of adhesive bonding and encapsulating and soldering and welding. By measuring contact angles of liqs. a crit. surface tension for the surface can be detd. Expts. were performed using Pt as a substrate for cleaning. The crit. surface tension of a no. of polymer surfaces were also detd. 7440-06-4; 9002-84-05 9002-86-2J 9002-88-4; 9003-53-6; 9011-14-7; 25038-59-9 7910 RNW 1824 00009116 PVC PAGE 60 143 SI AU AO TI SO LA CD AB RN EM CA/091/112420X Ihlenfeld JV ; Cooper SL Dep. Chem. Eng., Univ. Wisconsin, Madison Transient in vivo protein adsorption onto polymeric biomaterials J. Biomed. Mater. Res.; VOL 13, ISS 4, 1979,577-91 ENG JBMRB CBAC COPYRIGHT: CHEM ABS The adsorption of albumin, gamma-globulin, and fibrinogen was measured on 3 ex vivo polymeric shunt surfaces [poly(vinyl chloride) (PVC), Silastic, and segmented polyether urethane (Biomer)] exposed to flowing heparinized, canine blood in vivo. (9002-86-2 CPoly(vinyl chloride)) At ime-dependent phase of thrombus deposition followed by thromboembolism was obsd. on the PVC and Silastic shunt surfaces but not on the Biomer surface. Fibrinogen adsorption was found to predominate initially on PVC and Silastic though it subsequently desorbed somewhat and was replaced by albumin and gamma-globulin. On Biomer, the adsorption of all three proteins increased with time following initial blood contact and fibrinogen was less prominent initially. The PVC surface became passivated with respect to further thrombogenesis after 60-min exposure to flowing blood, at which time a higher fraction of albumin was present on the surface compared to that at earlier blood contact times. Rearrangement of adsorbed protein species occurs with time on polymer surfaces exposed to flowing blood in vivo. Early and predominant fibrinogen adsorption appears to be an important factor in the thrombogenic and embolic events obsd. on the PVC and Silastic shunt surfaces in vivo. 9002-86-2 7910 144 SI - CA/091/112407Y AU - Hellwig G AD - Inst. Grenzflaechen- und Bioverfahrenstech., Stuttgart TI - Measurement of adsorption of proteins on solid surfaces by means of dielectric and electron-spectroscopic methods SO - Chem.-Ing.-Tech.i VOL 51, ISS 5, 1979,530-1 LA - GER CD - CITEA AB - CBAC COPYRIGHT: CHEM ABS To characterize the thrombogenic properties of solid surfaces, the adsorption of fibrinogen to different plastic tubes was measured. From studies of adsorption behavior by dielec, relaxation measurements, a term was found that was concn. dependent and could be used to det. the amt. of adsorbed fibrinogen. The charge state of an adsorbed fibrinogen layer also was studied by photoelectronic methods using various different solid surfaces. Similar materials such as PVC and polyurethane showed different adsorptive and surface properties which are described. (9002-86-2 PVC) Various theories of thrombus formation are considered esp. in relation to the use of temporary or permanent artificial organs. RNW 1825 00009117 PVC PAGE 61 RN - 9002-86-2 EM - 7910 145 SI AU AD TI SO LA CD AB RN EM CA/091/112395T Zakrzewski Z ; Sosnowski J Inst. Nauk. Leku, Akad. Med., Warsaw Development of a method for producing benzhydramine hydrochloride tablets of prolonged action Farm. Pol.J VOL 35, ISS 4, 1979,223-5 POL FAPOA CBAC COPYRIGHT: CHEM ABS Sustained-release tablets of benzhydramine-HCl (I) were manufd. in a matrix of PVC alone or with Et cellulose (II). (147-24-0 Benzhydramine hydrochloride )(9002-86-2 PVCM9004-57-3 Ethylcellulose ) Addn. of II retarded I release, relative to a pure PVC matrix. 147-24-0; 9002-86-2; 9004-57-3 7910 146 SI AU AD TI SO LA CD AB RN EM CA/091/103158R Kishitani K ; Yusa S Dep. Archit., Univ. Tokyo, Tokyo Study of evaluation of relative toxicities of combustion products of various materials J. Fac. Eng., Univ. Tokyo, Ser. B; VOL 35, ISS 1, 1979,1-17 ENG JETBA CBAC COPYRIGHT: CHEM ABS The toxicity to mice of the combustion products of various materials, evaluated from the relation between collapse time and the wt. of material required to cause collapse during combustion, was higher when the materials were heated to 850.degree, than to 550.degree.. At the higher temp., polyamide, polyacrylonitrile, and urea resin foam products were apprx.20-fold more toxic than those of lumber, wool products .apprx.10-fold more toxic, products from melamine resin-impregnated sheets and polyurethane foam .apprx.5-fold more toxic, and those from PVC foam slightly more toxic. Polystyrene foam and PVC A sheet products were lower in toxicity than those of lumber. 57-13-6; 108-78-1; 9002-86-2; 9003-53-6; 25014-41-9 7910 147 SI - CA/091/095906R AU - Gideon JA AD - Cent. Dis. Control, Natl. Inst. Occup. Saf. Health, Cincinnati TI - Engineering control technology in polyvinyl chloride polymerization plants SO - J. Environ. Pathol. Toxicol.; VOL 2, ISS 5, 1979,285-318 LA - ENG CD - JEPTD AB - CBAC COPYRIGHT: CHEM ABS A discussion is given on control of vinyl chloride pollution of the air of plants where PVC is manufd. (75-01-4 Vinyl chloride)(9002-86-2 PVC) RNW 1826 IT 00009118 PVC PAGE 62 RN 75-01-4; 9002-86EM 7909 148 SI - CA/091/078404H AU - Taylor M ; Scott KA C AD - Plast. Rubber Inst. London TI - Toxic gases in plastics fires SO - Cah. Notes Doc.; VOL 95,, 1979,259-66 LA - FRE CD - CNDIB AB - CBAC COPYRIGHT: CHEM ABS Pyrolysis and combustion products of various plastic and some common materials, e.g., wood, rubber, etc, are presented. RN - 57-13-6*. 100-21-0; 108-78-1; 108-80-5; 9002-84-0J 9002-85-1; 9002-86-2; 9002-89-5*, 9003-05-8', 9003-53-6; 9004-70-0', 9011-14-7; 25014-41-9; 25038-54-4; 32131-17-2; 54830-67-0 EM - 7909 149 SI - CA/091/096558R AU - HondaK ;Itoh H ; Hoshi I J Sasakawa S AD - Cent. BloodCent., Jap. Red Cross Soc. Tokyo TI - Effects of container materials on platelet preservation SO - Kcbunshi Ronbunshu; VOL 36, ISS 4, 1979,203-7 LA - JPN CD - KBRBA AB - CBAC COPYRIGHT: CHEM ABS The effect of polymer container material on blood platelet aggregation was detd. The rate of decrease in the no. of single blood platelets exposed to polymeric material increased in the following order: silicone, polytvinyl chloride), glass, ionene polymer. (9002-86-2 Poly(vinyl chloride)) The no. of single platelets decreased rapidly on a Na polyacrylate surface as well as on a ionene polymer surface. (9003-04-7 Sodium polyacrylate) Blood platelets on a silicon surface showed discoid shapes, whereas platelets on an ionene polymer surface were multiple pseudopods and on poly(vinyl chloride) were spread out. RN - 9002-86-2; 9003-04-7 EM - 7909 150 SI - CA/091/085297D AU - Greenberg J TI - Slow-release insecticidal bodies SO - Ger. Offen. PATENT NO. 2852794 06/07/79 (Robins, A. H., Co., Inc.) LA - GER AB - CBAC COPYRIGHT: CHEM ABS Slow-release Naled-contg. PVC bodies, characterized by a high surface-to-vol. ratio, are described. (300-76-5 Naled)(9002-86-2 PVC) The plastic mass also contains Si02 and a C14-20 fatty acids or a salt or ester thereof. Haloacetaldehydes are used as pore-forming agents during the curing of the plastic at 127-204.degree.. The Naled content is 20-35X. RN - 300-76-5; 9002-86-2; 7631-86-9 EM - 7909 RNW 1827 :s 00009119 PVC PAGE 63 151 SI AU TI SO LA AB RN EM 152 SI AU AD TI SO LA CD AB RN EM CA/091/078916B Ackers S Compositions for controlled availability of medically-useful organophosphorus compounds U.S. PATENT NO. 4153682 05/08/79 (Shell Oil Co.) ENG CBAC COPYRIGHT: CHEM ABS Organophosphorus drugs are incorporated into polytvinyl chloride) (PVC) resins and styrene-maleic anhydride polymer (SMA) resins for administration to animals to kill parasites in the gastrointestinal tract> increase the vitality of the fetus and newborn young of a pregnant mammal and to kill fly larvae feeding upon excreted feces of the animal. (9002-86-2 Polyvinyl chloride ))(9011-13-6 Styrene-maleic anhydride polymer) Dichlorvos 45 and Mark QT stabilizer 2.25 g were mixed with 252.75 g PVC at 175.degree. F. (62-73-7 Dichlorvos) The particles were cooled and a soln. of 90 g SMA (1; 1)> in which the maleic acid to (maleic anhydride-maleic acid) ratio was about 0.33:1 in 350 mL Me2CO> was added with mixing to distribute the soln. evenly over the particles. The powder then was heated to 145.degree. F for 3 h to remove solvent. 9002-86-25 9011-13-65 62-73-7; 17196-88-2 7909 CA/091/078872J Ihlenfeld JV ; Mathis TR *, Riddle LM ; Cooper SL Dep. Chem. Eng., Univ. Wisconsin, Madison Measurement of transient thrombus deposition on polymeric materials Thromb. Res.; VOL 14, ISS 6, 1979,953-67 ENG THBRA CBAC COPYRIGHT: CHEM ABS A method developed to measure transient thrombus deposition from arterial blood on polymeric surfaces involves infusion of small amts, of 1251-labeled fibrinogen and 51Cr-labeled platelets into the circulation of anesthetized mongrel dogs. Radioactivity adsorbed to the walls of femoral A-V shunts was counted to measure fibrin and platelet deposition with time following initial blood-polymer contact. Shunt segments were obtained at each datum for SEM of adhered thrombus material. Plasticized poly(vinyl chloride), recognized as having poor blood compatibility, elicited rapid platelet and fibrin activation resulting in a transient max. of thrombus deposition after 10 to 15 min of blood contact. (9002-86-2 Poly(vinyl chloride)) Adherent thrombi subsequently left the surface. Contact of blood with segmented polyether urethane (BIOMER) resulted in minimal platelet and fibrin deposition. Morphol. anal, by electron microscopy confirmed these observations. This method can be used to det. the thrombogenic and embolic potential of polymeric surfaces and may be used to elucidate the mechanisms of artificial surface induced thrombosis. 9002-86-2 7909 RNW 1828 00009120 PVC PAGE 64 153 SI - CA/091/062179C AU - Mathe A 5 Molnar J TI - Plastic packing material for biological trickling device for wastewater purification apparatus SO - Ger. Offen. PATENT NO. 2747769 04/26/79 (Hungaria Muanyagfeldolgozo Vallalat) LA - GER AB - CBAC COPYRIGHT: CHEM ABS The title materials, which can be prepd. readily and satisfactorily fron PVC, consist of transmission channels having wavy walls, the channels forming a uniform, hexagonal cross section in a horizontal plane and having a zigzag arrangement in the vertical plane. (9002-86-2 PVC) RN - 9002-86-2 EM - 7908 154 SI AU AD TI SO LA CD AB RN EM CA/091/061896X Zolkin GA Vses. Nauchno-Issled. Inst. Tr. Stroit., Moscow Hygienic assessment of the high-temperature treatment of polylvinyl chloride) finishing materials Gig. Sanit.*, ISS 4, 1979,76-7 RUS GISAA CBAC COPYRIGHT: CHEM ABS The atm. surrounding workers employed in welding PVC linoleum averaged above the permissible concns. of CH2.*CHC1 and di-Bu phthalate. (9002-86-2 PVC)( 75-01-4 Vinyl chloride)(84-74-2 Dibutyl phthalate) This was true for both processes studied, IR heating and direct contact with hot electrodes. 9002-86-25 75-01-45 84-74-2 7908 155 SI - CA/091/044116A AU - Schorr W 5 Duschner H 5 Starke K AD - Kernchem. Fachber. 14, Phi 1ipps-Uoiv. Marburg, Marburg TI - The generation of radiolysis gases from low- and medium-level radioactive waste solidification products SO - Atomkernenerg./Kerntech.5 VOL 33, ISS 4, 1979,265-9 LA - ENG CD - ATKED AB - CBAC COPYRIGHT: CHEM ABS The amt. and compn. of radiolysis gases evolved from bitumen, polyethylene, and concrete as well as from their mixts. with simulated waste components were detd. by mass spectrometry. Irresp. of the additive, the main component of the induced gases is H. Though its rate of generation is low it should be taken into account with respect to the design of optimum underground storage conditions. RN - 1333-74-05 7727-37-95 7782-44-75 9002-86-25 9002-88-4 EM - 7908 # RNW 1829 'I I I 00009121 PVC PAGE 65 156 SI - CA/091/026872Q AU - Hoketsu H TI - Separation of oil on water SO - Jpn. Kokai Tokkyo Koho PATENT NO. 79 33887 03/12/79 (Sumitomo Metal Industries* Ltd.) LA - JPN AB - CBAC COPYRIGHT*. CHEM ABS Polar plastic coated rice hulls are spread over oil films on water, and stirred to remove the oil. Thus, a PVC-xylene soln. was sprayed on rice hulls. (9002-86-2 PVC)(1330-20-7 Xylene) The coated hulls was sprayed on oil spills, and aggregated to 50-60 mm diam. lumps in 30-50 s. The treated water contained <10 ppm fuel oil. RN - 9002-86-2; 1330-20-7 EM - 7908 157 SI AU AD TI SO LA CD AB RN DTG EM CA/091/027213N Pik J ; Braier J ; Kalman MZ ; Josef MP Inst. Exp. Med., Budapest Determination of bis(2-ethylhexyl) phthalate (BEHP) in blood preparations stored in poly(vinyl chloride) bags Probl. Gematol. Pereliv. Krovi; VOL 24, ISS 2, 1979,49-51 RUS PGPKA CBAC COPYRIGHT: CHEM ABS The concn. of bis(2-ethylhexyl) phthalate in whole blood stored 20 days in PVC bags manufd. by Medicor (Hungary) and Biopack P (Fed. Rep. Ger.) was 7.5 and 10.9 mg/100 mL, resp. (117-81-7 Bis(2-ethylhexyl) phthalate)(9002-66-2 PVC) 117-81-7; 9002-86-2 BLOOD CONCENTRATIONS 7908 158 SI AU AU AU AD TI SO AB CA/090/2094155 Vulikh AI ; Zagorskaya MK ; Fokina NA ; Nikandrov GA Reznichenko LA ; Zverev MP ; Barash AN ; Surkova VI ; Mavrin AM et al USSR Purification of gases Ger. Offen. PATENT NO. 2737070 03/08/79 CBAC COPYRIGHT: CHEM ABS HCl and/or HF are removed from gases by adsorption on fibrous anion exchangers contg. vinylpyridine or amine groups, followed by aq. regeneration of the exchangers. Thus, epoxy resin-sized 65:35 acrylonitrile-2-methvl-5-vinylpyridine copolymer fibers [intrinsic viscosity (DMF, 25.degree.) 1.5, denier 0.3, tenacity 18 g/denier, elongation 20/, HCl exchange capacity 2.4 mequiv./g] are formed into a nonwoven sheet with wt, 500 g/m2 and thickness 6 mm. (26100-50-5 Acrylonitrile-2-methyl-5-vinylpyridine copolymer) Passing air contg. 50 mg/m3 HF through this sheet at a linear velocity of 2.2 cm/s requires passage of 1360 L air before breakthrough of traces of HF, with absorption of 68 mg HF. Passing 30 mL H20 over the spent filter desorbs 60 mg HF. RNW 1830 00009122 PVC PAGE 66 RN - 26100-50-5J 7647-01-0; 7664-39-3; 9002-86-2; 9002-98-6; 24937-79-9J 25038-86-2; 25684-76-8; 25748-98-55 26836-60-2; 26913-06-45 32236-74-1 EM - 7907 159 SI AU AD TI SO LA CD AB RN EM CA/090/192633M Fukamachi K ; Ishibashi N Fukuoka Environ. Res. Cent.* Fukuoka* Japan Testing and characteristics of a clobutinol-sensi ti ve electrode Yakugaku Zasshi; VOL 99, ISS 2, 1979,126-30 JPN YKKZA CBAC COPYRIGHT: CHEM ABS An ion-selective electrode was developed with a PVC membrane matrix responsive to clobutinol Cl). (9002-86-2 PVC)(14860-49-2 clobutinol) The I ion-selective electrode exhibited a Nernstian response to I ion from 10-1.5 to 10-4.5M. The membrane potential of the electrode was independent of pH from 3.0-8.0. Na, K, NH4, and Ca ion interference was extremely small in the detn. of I. Ephedrine* methylephedrine* caffeine* antipyrine, etc.* usually contained in common drugs did not interfere at pH 5-7* whereas chlorpheniramine, diphenhydramine and tripelenamine interfered. (113-92-8 Chlorpheniramine M58-73-1 Diphenhydramine)(91-81-6 Tripelenamine) The developed PVC membrane electrode is useful as an indicator electrode not only for direct potentiometry of I, but also for the pptn. titrn. with Na tetraphenylborate. Method of prepn. of the PVC matrix membrane is given. 9002-86-2*, 14860-49-25 113-92-85 58-73-1; 91-81-6 7906 160 SI - CA/090/181072B AU - Shevchenko AM ; Shkurko GA 5 Medvedev VN AD - Kiev. Med. Inst., Kiev, USSR TI - Biological effect of dust from poly(vinyl chloride) production SO - Vrach. Delo5 ISS 2, 1979,93-5 LA - RUS CD - VRDEA AB - CBAC COPYRIGHT: CHEM ABS Six months of inhalation of 80-150 mg/m3 of dust of a mixt. used for manuf. of synthetic leather and contg. 100 wt. parts poly(vinyl chloride), 25 wt. parts enriched chalk, 4 wt. parts PbSi03, 2 wt. parts Ca stearate, and 10 wt. parts di-Bu phthalate (I) increased the oxyproline level in rat lungs by 69X, i.e. 1.5-fold as much as did pure poly(vinyl chloride). (9002-86-2 Polyvinyl chloride )(84-74-2 Dibutyl phthalate)(51-35-4 Oxyproline) The increased pneumoconi atic activity (formation of polymorphic cellular exudate) was due to the presence of PbSi02 whereas increased general toxicity was due to action of I. The increased general toxicity consisted in hyperdemia of liver capillaries, discomplexation of hepatocytes with vacuolar dystrophy of cytoplasm, and increased mitotic activity. Renal microcirculation was disturbed and granular dystrophy of the epithelium of proximal glomeruli occurred. Per i capi llary swelling was obsd. in the heart muscle.. Max. RNW 1831 00009123 PVC PAGE 67 permissible concn. of the manufg. dust contg. toxic additives should be lower than that of the pure polytvinyl chloride) dust. RN - 9002-86-2? 84-74-2; 51-35-4; 7439-92-1; 11120-22-2 DTG - MAXIMUM PERMISSABLE LIMIT EM - 7906 161 SI AU AU TI SO LA AB RN EM CA/092/115960E Lopushanskaya AI ; Rudi VP ; Orynyak MV ; Khaber NV Vatamanvuk VI ; Denisenko VP ; Sklvarskaya LB Removal of polv(vinyl chloride) from waste waters U.S.S.R. PATENT NO. 688442 09/30/79 ("Khlorvini1 Kaluga Industrial Enterprises) RUS CBAC COPYRIGHT: CHEM ABS The coagulant CMe2N+(CH2C02R)(CH2)nN+(CH2C02R)Me2] 2C1- (n = 2, 6, 7; R = C9H19-C16H33) is added to the wastewater while mixing and the polvivinvl chloride) coagulum is then removed by filtration. (9002-86-2 PVC) 9002-86-25 7369-18-8J 73025-07-7; 73025-08-8 8004 162 SI AU AD TI SO LA CD AB RN EM CA/092/098944H Poranek A ; Winnicki T ; Wisniewski J Inst. Ins. Ochr. Srodowiska, Politech. Wroclawska, Wroclaw Membrane separation of product in biological transformation process Metody Fizykochem. Oczyszczania Wody Sciekow, Mater. Konf. Nauk. Miedzynar. Konf., 2nd; VOL 1, 1979Paper No. 1, 12 pp. POL 41JYA CBAC COPYRIGHT: CHEM ABS The effectiveness of permeable membranes contg. immobilized Rhodotorula mucilaginosa in reducing toxic PhCHO to less toxic PhCH20H was studied. (100-52-7 Benzaldehyde)(100-51-6 Benzenemethanol) The membranes were prepd. by sintering powd. PVC and then depositing thin films of Polysulfone P3500 (I) on its surface. (9002-86-2 PVC)(50958-07-1 Polysulfone P3500) The permeability of these membranes could be changed by changing the temp, of I solns. in DMF used for the deposition of the films. The highest permeability of water, 0.45 m3/m2-day> was obtained with I films 25 mu thick obtained from I solns. at 333 K. When a mixt. of PhCHO, water, and MeOH contg. suspended fungi was pressure-forced through I membranes on sintered PVC, the filtrate contained PhCH20H water, and MeOH. The fungi were deposited on the membrane slowing down the filtration rate by 10/. Similar ultrafiltration systems could be used to reduce the toxicity of wastewaters. 100-52-7; 100-51-6; 9002-86-2; 50958-07-1 6004 RNW 1832 00009124 PVC PAGE 68 163 SI AU AD TI SO LA CD AB RN Eh CA/092/116402M Friocourt MP ; Pi cart D ; Saleun JP ; Floch HH Lab. Biochim., Fac. Med. Brest Release of di t2-ethylhexyl] phthalate into blood stored in contact with poly [vinyl chloride] Rev. Fr. Transfus. Immuno-Hematol. VOL 22, ISS 4, 1979,343-58 FRE RFTID CBAC COPYRIGHT: CHEM ABS Leaching of bis(2-ethylhexyl) phthalate (I) from poly(vinyl chloride) blood bags plasticised with I was detd. using 14C-labeled I. (117-81-7 Di(2-ethylhexyl)phthalate)(9002-86-2 Polyvinyl chloride) The leaching is independent of the lipid concn. of the blood, but is increased by heat sterilisation of the plastic and shaking of the blood bag. I is not metabolised in blood at 4.degree, but is tightly bound to proteins of mol. wt. >10,000 which must be hydrolysed with HC104 and H202 to ext. I. 117-81-7J 9002-86-2 8004 164 SI - CA/092/099597J AU - Tritten P TI - Bone prosthesis SO - U.S. PATENT NO. 4179485 12/18/79 (Ceraver S. A.) LA - ENG AB - CBAC COPYRIGHT: CHEH ABS A bone prosthesis was formed from substantially pure porous alumina and has a porosity of .apprx.30X and pore sise of .apprx.100-200 .mu.. The alumina powder is granulated with an org. binder such as poly(vinyl ale.) into 0.5-1.5 mm grains and the grains heated to gtoreq.1400.degree, but lower than sintering temp. (9002-86-2 poly(vinyl ale.)) The resulting bulk is compressed at .gtoreq.1 metric ton/cm2 into a 1 st pressed mass and this mass is sintered at .apprx.1650-1700.degree, to form the porous alumina. This prosthetic can enable connection with natural bone by rebuilding of the bone. RN - 9002-86-2 EM - 8004 165 SI - CA/092/081835A AU - Alonso Breton A TI - Problems derived from incineration of vinvl plastics SO - Rev. Plast. Mod.; VOL 38, ISS 279, 1979,332-5 LA - SPA CD - RPMOA AB - CBAC COPYRIGHT: CHEM ABS The incineration of solid urban wastes contg. 7.7'/. plastics has induced corrosion of the 15Mo3 steel pipes in afterburner units of the Barcelona refuse-burning elec, power generating plant. (39439-20-8 15Mo3) Analyses of particulate emissions show abundant S (9.35) and levels of Cl (20.0), Na (11.63), and K (16.79X), which are .apprx.200/ greater than av. values reported for other urban-waste incineration RNW 1833 00009125 PVC PAGE 69 plants. Surface deposits on the corroded pipes contain 2-5^ Cl and abundant S (as sulfates and bisulfates). The corrosion is attributed to the interaction of excessive amts, of Cl> S> Na> and K at the high (.apprx.400.degree. ) afterburner temps. Increased PVC input (principally as mineral-water bottles and plasticised milk cartons) is the probable source of excess Cl. Fruit and vegetable wastes are the probable sources of Cl* Na* and K. RN - 39439-20-8; 9002-86-2 EM - 8003 166 SI AU AD TI SO LA CD AB RN EM CA/092/081580P Laatsch HD Volksuagenwerk A.-G.* Wolfsburg Safety aspects of foam plastic production Kunstst.-Plast. (Solothurn, Swits.); VOL 26, ISS 9, 1979,37-40 GER KUPLA CBAC COPYRIGHT: CHEM ABS Threshold limits for substances in workroom air and other safety factors in the prepn. of foams from polystyrene, PVC, polyethylene, polyoxyphenylenes, polycarbonates, polyureas, and unsatd. polyesters are discussed. (9003-53-6 Polystyrene )(9002-86-2 PVC)(9002-88-4 Polyethylene) 9003-53-65 9002-86-2; 9002-88-4 8003 167 SI AU AD TI SO LA CD AB RN EM CA/092/081497S Graedel TE ; Franey JP Bell Lab., Murray Hill Gaseous hydrogen sulfide determination by discoloration of lead-stabilised PVC Am. Ind. Hyg. Assoc. J.*, VOL 40, ISS 11, 1979,947-54 ENG AIHAA CBAC COPYRIGHT: CHEM ABS PVC stabilised with 207. tribasic Pb sulfate showed color degrdn. when exposed to H2S (8-5000 ppb) at different temps, and humidities. (9002-86-2 PVC) This color degrdn. effect was used for monitoring ambient H2S. The color degrdn. depended on humidity and temp, of the environment. The PVC discoloration technique is insensitive to interferences from ambient S02 and MeSH. Thermomech. and mechanism of PVC discoloration is discussed. Concns. of H2S exceeding accepted health limits were detected in .ltoreq.5 min by visual means at .gtoreq.40/ humidity. 9002-86-25 7783-06-4; 12202-17-4 8003 RNW 1834 IT 00009126 PVC PAGE 70 168 SI AU AD TI SO LA CD AB RN EM CA/092/064213D Bregulla EP Nukem G.m.b.H.* Hanau Mobile LLM and ILW solidification unit and treatment of TRU-bearing, combustible waste Waste Manage. '79 [Seventy-Nine]: State Waste Disposal Technol. Soc. Polit. Implie., Proc. Symp.5 1979,493-508 ENG 41TPA CBAC COPYRIGHT: CHEM ABS A mobile unit is described for the fixation, in concrete, of radioactive liqs., sludges, and spent resins. Pu-contg. waste neoprene, paper, polyethylene, PVC, and rubber were pyrohydrolysed by a process in which 90/ of the Pu was extractable from the ashes. (9002-88-4 polyethylene)(9002-86-2 PVC) 9002-88-4*, 9002-86-25 7440-07-5 8003 169 SI - CA/092/063975S AU - Fomenko VN 5 Zaeva GN 5 Katosova LD 5 Pavlenko 61 TI - Results of studying oncological morbidity and the cytogenetic effects in workers employed in vinyl chloride polymerization SO - Toksikol. Nov. Prom. Khim. Veshchestv; VOL 15,, 1979,17-21, 145-50 LA - RUS CD - TPKVA AB - CBAC COPYRIGHT: CHEM ABS The concn. of vinyl chloride in the air of working areas was 1.8-111 mg/m3 as measured in the course of 2 yr, and in 20/ of the cases was 3 times higher than the max. permissible concn. (30 mg/m3). (75-01-4 Vinyl chloride) The long-term occupational contact with vinyl chloride causes the increased chromosome aberrations in lymphocyte cultures of the peripheral blood. The leading role of vinyl chloride poisoning in chromosome mutation is shown. RN - 75-01-45 9002-86-2 EM - 8003 170 SI - CA/092/082383P AU - Gendreau RM 5 Jakobsen RJ AD - Battelle Columbus Lab., Columbus TI - Blood-surface interactions: Fourier Transform infrared studies of protein surface adsorption from flowing blood plasma and serum SO - J. Biomed. Mater. Res.*, VOL 13, ISS 6, 1979,893-906 LA - ENG CD - JBMRB AB - CBAC COPYRIGHT: CHEM ABS The adsorption of blood proteins onto various surfaces in contact with flowing blood plasma or serum was investigated using IR spectroscopy coupled with attenuated total reflection. The comparison of adsorption from a static vs. a flowing blood plasma system showed that a greater amt. of protein was adsorbed when the static system was employed, whereas desorption was obsd. with the static system and not in the flowing system. When plasma and serum were compared in terms of RNW 1835 '1 3a 00009127 PVC PAGE 71 amt. and type of protein adsorbed* little difference was noted in the kinetics of adsorption or stability of the adsorbed layers. Variations in the ratios of IR adsorption bands (from either plasma or serum) indicated that changes occurred during the adsorption process in the protein layers. A comparison of poly(vinyl chloride) to Ge as the protein adsorbing surface in the static system showed differences in terms of the compn. of the adsorbed layers. (9002-86-2 Poly(vinyl chloride)) RN - 9002-86-25 7440-56-4 EM - 8003 171 SI - CA/092/082353D AU - Offeman RD 5 Williams MC AD - Chem. Eng. Dep.* Univ. California* Berkeley TI - Material effects in shear-induced hemolysis SO - Biomater., Med. Devices* Artif. Organs 5 VOL 7* ISS 3, 1979*359-91 LA - ENG CD - BMDOA AB - CBAC COPYRIGHT: CHEM ABS A rotating-disk app. for shearing blood was employed to compare 22 materials for their tendency to cause hemolysis during standardised low-stress (130 dynes/cm2 max.) laminar flow conditions. Rigid plastics, hydrogels* and carbons were among the materials tested. Time-independent ranking of the materials was possible for 75X of the data; these rankings correlated linearly (for polymers with the crit. surface tension gammac over the range 20-46 dyne/cm* with low gammac being assocd. with low hemolysis. Surface morphol. was also found to influence hemolysis. Roughness in the 1-15 mu range had a distinct effect on hemolysis kinetics for polyethylene surfaces. (9002-88-4 Polyethylene) Failure to find time-independence in 25X of the material rankings can be attributed to inadequate control of the roughness variable. The importance of surface morphol.* as well as surface chem.* as a biocompatibility parameter was emphasised. RN - 9002-88-45 7440-44-05 9002-84-05 9002-86-25 9003-05-85 9003-07-05 9011-14-75 12597-68-15 25038-54-45 28214-29-15 52627-33-5 EM - 8003 172 SI - CA/092/052932Z AU - Hilado CJ AD - Fire Saf. Cent., Univ. San Francisco* San Francisco TI - Carbon monoxide as the principal toxicant in the pyrolysis gases from materials SO - J. Combust. Toxicol.5 VOL 6* ISS Aug.* 1979*177-84 LA - ENG CD - JCTOD AB - CBAC COPYRIGHT: CHEM ABS Total cone.-time exposure to CO was estd. for toxicity screening tests on 93 materials* using death-product values based on the CO anal, at the end of the tests. CO was the sole or principal toxicant in the gases from the majority of materials evaluated. RN - 630-08-05 9002-81-75 9002-86-25 9002-88-45 9003-07-05 9003-53-65 9003-56-95 9010-98-45 9011-14-75 25038-54-45 25585-20-05 RNW 1836 00009128 PVC PAGE 72 25667-42-9; 27026-93-3; 31833-61-1; 62238-79-3 EM - 8003 173 SI - CA/092/046773G AU - Petersen 0 ; Schmidt HD TI - Detection of gas traces SO - Ger. Offen. PATENT NO. 2812613 09/27/79 (Bayer A.-G.) LA - GER AB - CBAC COPYRIGHT: CHEM ABS Traces of N02 are detd. in gases by an electrochem. cell equipped with a cathodically-polarized, ion-selective> Agl-coated, Ag working electrode* a ref. electrode* and an Ag auxiliary electrode in an org. electrolyte. The electrolyte contains di-Et phthalate 40-60* propylene carbonate 25-35* PVC 15-20X, and additives to increase cond. and pH stability. (84-66-2 Diethyl phthalate)(108-32-7 Propylene carbonate)(9002-86-2 PVC) The sensor can be used to detn. traces of acrvlontrile. (107-13-1 acrylontrile) RN - 84-66-2; 108-32-7; 9002-86-2; 107-13-1*, 7440-22-4; 7783-96-2; 10102-44-0 EM - 8002 174 SI - CA/092/046724S AU - Hans teen IL AD - Lab. Genet., Telemark Cent. Hosp., Porsgrunn TI - A follow-up study of PVC workers two years after exposure. Preliminary results using sister chromatid exchange frequency as an assay of genetic damage SO - Genet. Damage Man Caused Environ. Agents* CProc. Conf.j; 1979,279-85 LA - ENG CD - 41RGA AB - CBAC COPYRIGHT: CHEM ABS There is no significant difference in the frequency of sister chromatid exchanges (SCEs) between PVC workers and their matched controls 2 yr after exposure to 1 ppm vinyl chloride. (9002-86-2 PVC)(75-01-4 Vinyl chloride) The mean SCEs of exposed workers is 7.6 (range 4.7-10.5), as compared to 7.5 (range 5.1-11.1) for the control. RN - 9002-86-2*, 75-01-4 EM - 8002 175 SI - CA/092/028092E AU - Hemming ML AD - Spec. Proj. Group* ICI Ltd. TI - General biological aspects of waste-water treatment including the deep-shaft process SO - Water Pollut. Control (Maidstone, Engl.); VOL 78* ISS 3* 1979,312-25 LA - ENG CD - WPOCA AB - CBAC COPYRIGHT: CHEM ABS Wastewater treatment is described using plastic media in roughing and fining stages of biol. filtration. Flocor E (PVC) is compared to mineral media. (9002-86-2 PVC) Biol, oxidn. in deep-shaft facilities is RNW 1837 00009129 PVC PAGE 73 described. RN - 9002-86-2 EM - 8002 176 SI - CA/092/035280T AU - Arnold CJ ; Trujillo RE AD - Sandia Lab., Albuquerque TI - Composition stability and degradation products of selected materials for solar heating and cooling SO - Report; ISS SAND-78-0681,, 1979,36 pp. LA - ENG CD - D3REP AB - CBAC COPYRIGHT: CHEM ABS The compn., stability and thermal degrdn. products of a variety of structural plastics, heat transfer fluids, thermal storage media and sealants, which have been proposed for use in solar heating and cooling applications, were either defined generically by anal, or obtained by surveying the literature. This information will be used to aid in the assessment of the environmental impact of these materials. By gas chromatog.-mass spectrometry (GC-MS), beta-phenylnaphthylamine, a suspected carcinogen, was tentatively identified, arom. components which might be toxic were detected in all of the heat transfer fluids that were derived from petroleum sources. (135-88-6 .beta.-Phenylnaphthylamine) By thermogravimetric anal, it was found that polysulfide, Neoprene, polytvinyl chloride), and polytvinyl fluoride) were the least stable solar heating and cooling materials. In the event of a solar system failure, these materials would be expected to thermally degrade and evolve such toxic substances as H2S, HCl and HF. Other solar heating and cooling materials were found to be more thermally stable and hence should not outgas if the solar system fails. RN - 135-88-6; 7647-01-0', 7664-39-3; 7783-06-4; 9002-86-2*, 9080-49-3; 24981-14-4 EM - 8002 177 SI - CA/092/028536C AU - Yu R ; Koran A AD - Sch. Dent., Univ. Michigan, Ann Arbor TI - Dimensional stability of elastomers for maxillofacial applications SO - J. Dent. Res.; VOL 58, ISS 9, 1979,1908-9 LA - ENG CD - JDREA AB - CBAC COPYRIGHT: CHEM ABS Of 4 types of maxillofacial prosthetic elastomers, silicones, under conditions of accelerated aging, were more stable than PVC and polyurethanes. (9002-86-2 Poly(vinyl chloride)) PVC had the largest permanent deformation and the value changed only slightly after accelerated aging. The polyurethane had good elastic recovery with little permanent deformation but demonstrated severe degrdn. when exposed to conditions of accelerated aging. Among silicone elastomers, the largest vol. charge was obsd. for Silastic 399. Silastic 44210 demonstrated excellent stability in vol. change. RNW 1838 00009130 PVC PAGE 74 RN - 9002-86-2 EM - 8002 178 SI - CA/092/028382Z AU - Watson JR 5 Lawrence RC Lovering EG AD - Pharm. Chem. Div. Drug Res. Lab. Ottawa TI - A gas chromatographic (GC) headspace method for monitoring vinyl chloride in liquid drug and cosmetic products SO - Can. J. Pharm. Sci.J VOL 14, ISS 3, 1979,57-60 LA - ENG CD - CNJPA AB - CBAC COPYRIGHT: CHEM ABS A gas chromatog. method is described for monitoring vinyl chloride levels in liq. drug and cosmetic prepns. packaged in poly(vinyl chloride) containers. (75-01-4 Vinyl chloride)(9002-86-2 Poly(vinyl chloride)) A weighed aliquot of the com. product in a tightly septum-sealed vial with accurately known headspace vol. is heated to 50.degree, for 30 min. A portion of the warm headspace gas is then injected into a gas chromatog. equipped with a flame ionisation detector and a styrene-divinylbensene porous polymer column. The vinyl chloride is eluted isothermally at 125.degree, and is quantitated by simple computation relative to a response factor detd. daily using a std. vinyl chloride-air calibration gas mixt. The procedure was subjected to collaborative study by 5 analysts. Two mouthwash products, 2 com. shampoos, 2 large vol. parenteral solns. and 2 baby oil prepns. were analysed. Statistical evaluation of the results of the study showed that the method had an overall coeff. of variation of about 17X. The limit of detectability of the procedure is about 0.1 ppb in the sample soln. RN - 75-01-4J 9002-86-2 EM - 8002 179 SI - CA/092/016329Z AU - Bleehen T AD - Dep. Pharmacol. Ther., Middlesex Hosp. Med. Sch. London TI - The effect of plasticisers on responses mediated by cholinoceptors at the neuromuscular junction SO - Br. J. Pharmacol., VOL 66, ISS 1, 1979,76P LA - ENG CD - BJPCB AB - CBAC COPYRIGHT: CHEM ABS The stabilisers Lankro Q152 and Abrac A had no effect on the responses mediated by cholinoceptors at the neuromuscular junction of a frog rectus muscle prepn. in Ringer soln. (72231-61-9 Lankro Q152)(39427-38-8 Abrac A) When the plasticiser Citroflex A4 (I) (.gtoreq.2.7 .times. 10-5M) was added to the Ringer soln., the max. response to carbachol was reduced, and the effect of dithiothreitol was enhanced. (77-90-7 Citroflex A) Both effects were reversed by washing. I in concns. which reduced the max. response to carbachol by 98/ had no effect on caffeine-induced contractions. When I was replaced in PVC tubes by a phthalate plasticiser, the product did not interfere with the responses to carbachol, or the action of RNW 1839 00009131 PVC PAGE 75 dithiothreitol on it. RN - 72231-61-9J 39427-38-8; 77-90-7? 9002-86-2 EM - 8002 180 SI - CA/091/198177H AU - Vulikh AI ? Zagorskaya MK ; Fokina NA ? Nikandrov GA AU - Reznichenko LA ; Zverev MP ; Barash AN TI - Treatment of a gas containing a hydrogen halide 50 - Fr. Demande PATENT NO. 2400942 03/23/79 LA - FRE AB - CBAC COPYRIGHT: CHEM ABS Hydrogen halides* particularly HF and HCl are removed from gases by contact with fibrous anion exchangers consisting of vinylpyridine or aliph. amine groups or org. polymers* which are regenerated by H20. Thus* offgas from HF manuf. contg. 50 mg HF/m3 at 20.degree, and 50X relative humidity is passed at 2 L/min over a 500 g/m2 fabric of 65:35 acrylonitrile-2-methyl-5-vinylpyridine copolymer, which absorbs 9/ HF (1360 L air) before the HF concn. in the offgas exceeds the limit of detection (0.5 mg/m3). (26100-50-5 Acrylonitrile-2-methyl-5-vinylpyridine copolymer) Passing 30 mL H20 over the filter removes 60 mg of the 68 mg HF absorbed. RN - 26100-50-5? 7647-01-0? 7664-39-3? 9002-86-2? 9002-98-6? 24937-79-9? 25038-86-2; 25684-76-8? 25748-98-5? 32236-74-1 EM - 8001 181 51 - CA/092/011175M AU - Huettenrauch R AD - Hiss. Lab., VEB Jenapharm Jena* Jena TI - Molecular galenics. 40. Effect of capillary forces on the strength of compressed tablets 50 - Pharmazie* VOL 34, ISS 7, 1979,437 LA - GER CD - PHARA AB - CBAC COPYRIGHT: CHEM ABS The compression strength of NaCl, lactose* and polyvinyl chloride tablets decreased with tableting solvent in the order hexane > cyclohexane > EtOAc > 90X EtOH > H20. (63-42-3 Lactose )(9002-86-2 Polyvinyl chloride )(110-54-3 Hexane )(110-82-7 Cyclohexane)(141-78-6 Ethyl acetate)(64-17-5 Ethanol) Thus, soln. processes, crusting, gumming, surface tension, and wetting ability of the solvent all have practically no effect on tablet strength. RN - 63-42-3? 9002-86-2? 110-54-3? 110-82-7? 141-78-6? 64-17-5? 7647-14-5? 7732-18-5 EM - 8001 182 51 - CA/091/198911T AU - Korzeniowski A ? Domeracki S AD - Zakl. Przechowalnictwa, Inst. Gospod. Magazynowej, Poznan TI - Effect of blister-pack packages on the stability of tetracycline antibiotics under tropical conditions SO - Farm. Pol.? VOL 35, ISS 5, 1979,265-7 LA - POL CD - FAPOA RNW 1840 00009132 PVC PAGE 76 AB - CBAC COPYRIGHT: CHEM ABS Tetracycline-HCl and oxytetracycline-HCl decompn. under high-temp, and -humidity conditions in blistei--pack packages was proportional to the permeability of H20 through the packaging material. (69-75-5 Tetracycline hydrochloride )(2058-96-0 Oxytetracycline hydrochloride ) PVC (0.290 mm) film coated with 80 g/m2 poly(vinylidene chloride) was recommended. (9002-86-2 PVC)(9002-85-1 Poly(vinylidene chloride)) RN - 69-75-55 2058-96-0J 9002-86-2; 9002-85-1; 7929-90-5 EM - 8001 183 SI AU AD TI SO LA CD AB RN EM CA/091/187851X Gubbels GH Res. Stn. Agric. Canada* Morden Yield and weight per seed in buckwheat after foliar applications of growth regulators and antitranspirants Can. J. Plant Sci.J VOL 59, ISS 3, 1979,857-9 ENG CPLSA CBAC COPYRIGHT: CHEM ABS Neither growth regulators, e.g. daminozide (1000-9000 ppm), chlormequat (1000-9000 ppm), BAS 0660-W (50-950 ppm), NAA (5-125 ppm), gibberellic acid (5-125 ppm), and BA (5-125 ppm), nor antitranspirants, e.g. PMA (50-150 ppm), ABA (5-95 ppm), or HP, were effective in improving buckwheat yield. (1596-89-5 Daminozide )(999-81-5 Chlormequat)( 23165-19-7 BAS 0660-WM86-87-3 NAAM77-06-5 Gibberellic acid)(1219-39-7 BAM62-38-9 PMA)(21293-29-8 ABA)(9002-86-2 WP) Daminoside increased wt. per seed. 1596-89-5*, 999-81-55 23165-19-7J 86-87-3J 77-06-55 1219-39-7J 62-38-95 21293-29-85 9002-86-2 8001 189 SI AU AD TI SO LA CD AB CA/091/180838Q Bond WH ; Doty JW 5 Koenst JW Jr ; Luthy DF Mound Facil., Miamisburg Volume reduction of low-level, combustible, transuranic waste at Mound Facility Proc. DOE Nucl. Air Clean. Conf.5 VOL 15, ISS 1, 1979,117-30 ENG PDNCD CBAC COPYRIGHT: CHEM ABS Low-level combustible waste (<100 nCi/g/wastes), generated during plutonium-238 processing, has an approx, compn. of paper 32, plastic 96, rubber and cloth 16, and metal 6X. This waste is burned in the Mound Cyclone Incinerator, which consists of a burning chamber, deluge tank, venturi scrubber, and blower. An av. emission of 0.23 g particles/kg feed at the venturi outlet was detd. Analyses of the off-gas and the scrubber soln. from the combustion of PVC show that .apprx.87X of the produced Cl was captured by the scrubber soln. and approx. 0.6X remained in the off-gas after the venturi scrubber. (9002-86-2 PVC) Measurements of the amt. of NOx present in the off-gas showed that an av. of .apprx.200 ppm NOx was produced during each incinerator run. Immobilization of the RNW 1841 00009133 PVC PAGE 77 incinerator ash is being studied with regard to long-term behavior of the product. The immobilisation matrix which looks most promising is ash mixed with Portland 1A cement in a 65/35 wt.X ash-to-cement ratio. This matrix exhibits good mech. properties while maintaining a max. vol. redn. RN - 9002-86-25 7782-50-5; 11104-93-1; 13981-16-3 EM - 7912 185 SI - CA/091/180665F AU - Fomenko VN Zaeva GN ; Katosova LD ; Pavlenko GI TI - Results of a study of oncological morbidity and cytogenetic effects in workers occupied in processes for polymerising vinyl chloride SO - Toksikol. Nov. Prom. Khim. Veshchestv (Moskva)* ISS 15* 1979,17-21 LA - RUS CD - D4J0U AB - CBAC COPYRIGHT: CHEM ABS Title only translated. Vinyl chloride occupational exposure cancer Cytogenetics vinyl chloride occupational exposure RN - 75-01-4; 9002-86-2 EM - 7912 186 SI - CA/091/162456J AU - Woodard RW ; Terada K ; Buttedahl 01 AD - Rocky Flats Plant, Rockwell Int.* Golden TI - Studies on prolonging HEPA filter service in chemical applications SO - Proc. DOE Nucl. Air Clean. Conf.; VOL 15, ISS 2, 1979,1100-21 LA - ENG CD - PDNCD AB - CBAC COPYRIGHT: CHEM ABS Expts. are discussed in which HEPA (high-efficiency particulate air) filter materials were exposed to HN03 and HF vapors under controlled conditions in a specially constructed test chamber. In addn., observations are presented on filters tested in actual service. Finally, work on cleanable prefilters is reviewed. RN - 7429-90-5; 7664-39-3; 7697-37-2; 9002-86-2; 12001-28-4; 24937-79-9; 61105-31-5 EM - 7912 187 SI - CA/091/181320B AU - Homrowski S AD - Wojsk. Inst. Hig. Epidemiol., Warsaw TI - Problems in the use of poly(vinyl chloride) containers and devices for health service SO - Farm. Pol.; VOL 35, ISS 6, 1979,325-30 LA - POL CD - FAPOA AB - CBAC COPYRIGHT: CHEM ABS A review with 48 refs. Review PVC health service RN - 9002-86-2 EM - 7912 RNW 1842 00009134 PVC PAGE 78 188 SI AU AU TI SO LA CD AB RN EM 189 SI AU AD TI SO LA CD AB RN EM CA/091/169408D Eitingon AI ; Poddubnaya LT ; Gribunova GP ; Naumova LS Kozlova LD Comparative toxicity of the thermal degradation products of polymers Toksikol. Nov. Prom. Khim. Veshchestv; VOL 15*, 1979,105-9* 145-50 RUS TPKVA CBAC COPYRIGHT: CHEM ABS Fire hazards of polymers used in furniture manuf. and construction was assessed by detn. of the quantity of the material/m3 of inhalation chamber vol. which upon combustion caused 50X mortality of mice. For combustion of polyamide, polyimide* foamed polyurethane* poly(vinyl chloride), capron* poly(vinylidene fluoride), lavsan, and undefined plastic products at 600.degree, and 850.degree.* the above values were 0.04-0.27 and 0.007-0.16 kg/m3, resp. (9002-86-2 PolyCvinyl chloride))(25038-54-4 Capron)(24937-79-9 Poly(vinylidene fluoride))(25038-59-9 Lavsan) The acute toxicity agents were CO and HCN. Increasing the combustion temp, increased the output of HCN, but not of CO. The N-contg. polymers showed higher toxicity of combustion products than did N-free plastics. 9002-86-2? 25038-54-45 24937-79-9; 25038-59-9; 74-90-8; 630-08-0 7912 CA/091/152215R Popivanova I ; Rudenko SO Med. Akad. Sofia Sanitary-chemical assessment of some polymer construction materials based on poly(vinyl chloride) produced in Bulgaria Khig. Zdraveopaz.; VOL 22, ISS 2* 1979,172-4 BUL KHZDA CBAC COPYRIGHT: CHEM ABS Poly(vinyl chloride) panels stored at 40.degree, without air exchange released initially 4.26 mg ethylbenzene/m3. (9002-86-2 Polytvinyl chloride ))(100-41-4 Ethylbenzene) After 51 days, the concn. of ethylbenzene had decreased to 0.21 mg/m3. The panels also released 2 other substances. Artificial leather used for wall paneling released 8 substances and the release ceased within 6 days. Linoleum released 7 compds., mainly toluene. (108-88-3 Toluene) The release ceased within 30 days for linoleum without textile base and within 25 days for linoleum with a textile base. The decrease in the concn. of the volatile substances released by the above poly(vinvl chloride) products followed an exponential curve. 9002-86-2; 100-41-4; 108-88-3 7912 RNW 1843 00009135 PVC PAGE 79 190 SI - CA/091/145602M AU - Hollo J 5 Toth J Tengerdy RP 5 Johnson JE AD - Univ. Tech. Sci.* Budapest TI - Denitrification and removal of heavy metals from waste water by immobi1ized microorqanisms 50 - ACS Symp. Ser.J VOL 106* ISS Immobilised Microb. Cells* 1979*73-86 LA - ENG CD - ACSMC AB - CBAC COPYRIGHT: CHEM ABS Fixed-bed bioreactors, using immobilised P. aeruginosa cells are suitable for the simultaneous or sep. removal of nitrates and heavy metals from very dild. solns. The availability of a large amt. of plastic waste makes it attractive as a cheap carrier for waste removal. The choice of plastic depends on the intended application: for denitrification polyvinyl chloride is adequate (max. viability of cells but less stability), for Pu removal polypropylene is better (max. stability, lessened viability). The plastic based bioreactors are highly competitive with others both in performance and in economy. RN - 7440-07-5J 9002-86-2; 9003-07-0 EM - 7911 191 51 - CA/091/13496IB AU - Dyshinevich NE AD - Vses. Nauchno-Issled. Inst. Gig. Toksikol. Pestits. Polim. Plast. Mass* Kiev TI - An experimentally based hygienic standard proposed for trimethylbenzenes contained in polymeric building materials 50 - Gig. Sanit.; ISS 5, 1979,15-18 LA - RUS CD - GISAA AB - CBAC COPYRIGHT: CHEM ABS The recommended max. concn. of mesitylene (I) and pseudocumene in the atm. over poly(vinyl chloride) linoleum etc. is 0.01 mg/m3. (108-67-8 Mesitylene )(95-63-6 Pseudocumene)(9002-86-2 Polyvinyl chloride) These materials are cumulative poisons affecting the central nervous system and liver. A 4 mo const, exposure to 20 mg/m3 produced several physiol, effects in rats. A concn. of 0.2 mg/m3 appeared to be close to the threshold for activity. RN - 108-67-8; 95-63-6*, 9002-86-2 EM - 7911 192 51 - CA/096/057557Y CC - CA/161005 AU - Manda Y ; Yonekawa M 5 Usawa H TI - Apparatus for drinking water preparation SO - Jpn. Kokai Tokkyo Koho PATENT NO. 78 88666 08/04/78 (Tokyo Electric Co. Ltd.) PT - PATENT CY - Japan LA - JPN AB - CBAC COPYRIGHT: CHEM ABS Drinking water prepn app Purifn RNW 1844 00009136 PVC PAGE 80 drinking water appJWater purification Aik. drinking-water manuf. by app. for Electrochem. filtration;Waters Alk. manuf. of app. for electrochem. Potable, drinking RN - 9002-86-2 EM - 8204 193 SI - CA/093/039326F AU - Dryakhlov AI TI - Cobex herbicide in soybean plantings SO - Byul. NTI po Maslich. Kul'turamJ ISS 2, 1978,42-4 LA - RUS CD - D3RAP AB - CBAC COPYRIGHT: CHEM ABS Title only translated. Soybean Cobex RN - 9002-86-2 EM - 8009 194 SI - CA/092/168389G AU - Carnes RA AD - EPA, Cincinnati TI - Combustion characteristics of hazardous waste streams SO - Proc., Annu. Meet. - Air Pollut. Control Assoc.5 VOL 71st. Vol. 3,, 1978,Paper 78-37.5, 15 pp. LA - ENG CD - PRAPA AB - CBAC COPYRIGHT: CHEM ABS Pilot-plant coincineration of sewage sludge with the pesticide Kepone (I) in a rotary kiln at 500.degree, and an afterburner at 1093-1260.degree. showed I destruction efficiency of 99.999Z, I emissions below the 25 ng/m3 std., particulate emissions below national stds., and no process water was discharged to any stream. (143-50-0 Kepone) The similar results from incineration of polychlorinated biphenyls or PVC in various types of industrial incinerators are reviewed. (9002-86-2 PVC) RN - 143-50-0J 9002-86-2; 92-52-4 EM - 8006 195 SI - CA/092/168321D AU - Li C ; Wang S AD - Inst. Zool. Acad. Sin. TI - Problem of cadmium pollution in Taiwanese industries SO - K'o Hsueh Yueh K'anJ VOL 9, ISS 10, 1978,36-7 LA - CHI CD - KHYKD AB - CBAC COPYRIGHT: CHEM ABS Sources of Cd pollution in Taiwan including wastes and wastewater from PVC processing and electroplating plants are discussed. (9002-86-2 Polyvinyl chloride) RN - 9002-86-2; 7440-43-9 EM - 8006 RNW 1845 00009137 PVC PAGE 81 196 SI AU AD TI SO LA CD AB RN DTG EM 197 SI AU AD TI SO LA CD AB RN EM CA/092/070935U Anderson R 5 Alarie Y Grad. Sch. Public Health. Univ. Pittsburgh, Pittsburgh Screening procedure to recognise "supertoxic" decomposition products from polymeric materials under thermal stress Proc. Int. Conf. Fire Saf.J VOL 3,, 1978,157-70 ENG PCFSD CBAC COPYRIGHT: CHEM ABS Mice were exposed in a special chamber to the pyrolysis products of various polymeric materials. The LC50 (lethal concn. required to cause 50'/. mortality with LC being expressed as sample wt. ) for each polymer was detd. Douglas fir which was relatively nontoxic was used as the ref. material. More toxic than douglas fir after 30 min exposure and 10 min recovery (LC50 2-20 g) were poly(vinyl chloride), polyurethane, and polytetrafluoroethylene which was extremely toxic (LC50 <2 g). (9002-86-2 Poly(vinylchloride ))(9002-89-0 Polytetrafluoroethylene) 9002-86-2J 9002-89-0 LETHAL CONCENTRATIONS 8003 CA/091/216792M Brown IM 5 Kaplan MM ; Ssabocsik JM Bausch and Lomb Inc., Rochester An improved in vitro screening method for cytotoxicity Dev. Ind. Microbiol.; VOL 19,, 1978,299-307 ENG DIMCA CBAC COPYRIGHT: CHEM ABS An improved in vitro method was developed for detn. of cytotoxicity. Comparisons were made with existing tissue culture biocompatibility screening procedures of medical devices. The method was designed to increase assay sensitivity and reliability through modification of the std. agar overlay technique. Modifications included: suspension of cells in an agar-media matrix free of interference from vital stains or indicators; direct contact between cells and test materials; and macro- and microscopic evaluation of cytotoxicity by monitoring cell integrity and cell growth. These alterations eliminate the limitations in sensitivity caused by diffusion dependency and interactions of media components with test samples. Increased sensitivity and test reproducibi1ity were demonstrated by evaluation of numerous toxic agents. Predictions of subthreshold or chronic toxicity may be possible by virtue of direct cellular observations over an extended incubation period. Cytotoxicity of a variety of ophthalmic preservatives and their interaction with Soflens (polymacon) contact lenses were evaluated using the modified technique. (25053-81-0 Soflens) 25053-81-0', 59-69-8; 55-68-5; 60-00-9; 62-38-95 99-13-35 3697-92-55 9002-86-25 9011-19-75 25299-16-5 8001 RNW 1846 00009138 PVC PAGE 82 198 SI - CA/091/198987X AU - Bajda A ; Pokorski Z ; Skipor M > Wypych J TI - Materials for surgical dressings SO - Pol. PATENT NO. 98867 10/30/78 (Centralne Laboratorium Technicznych Wyrobou Wlokienniczych, Lodz) LA - POL AB - CBAC COPYRIGHT: CHEM ABS The surface of supporting synthetic and/or natural fibers for surgical dressings was treated with a laver of a material which absorbs x-rays. Thus, a 280-dtex, 90-twist polyester-fiber material was coated (0.5 mm) with PVC compn. contg. PVC 50. dioctyl phthalate 90. BaS04 20 and Ca-Zn stabiliser 1 wt. part and heated at 963 K for 15 s. (9002-86-2 PVC) RN - 9002-86-25 7727-93-7 EM - 8001 199 SI - CA/091/180659B AU - Grebtsova AS ; Grebenyuk LI . Goldovskaya MK AD - Vses. Nauchno-Issled. Inst. Gornospasetel. Dela. Donetsk TI - Study of the composition of toxic gaseous products of the thermal degradation of polymer materials used in mines SO - Probl. Kontrolya Zashch. Atmos. Zagryas.. VOL 4. 1978.50-2 LA - RUS CD - PKZZD AB - CBAC COPYRIGHT: CHEM ABS The nature and concn. of toxic gases were detd. from the thermal decompn. of latex. poly(vinyl chloride) polyurethane, styrene polymers, and urea resins, phenol-formaldehyde resins, and epoxy resins and other polymer materials during an accidental fire in a mine. (9002-86-2 Poly(vinylchloride))(9003-35-4 Phenolformaldehyde resins) The max. evolution of toxic gases was obsd. at 400-600.degree.. The most dangerous are poly(vinyl choride) materials which decomp, to CO. HCN. and HCl. The concns. of CO. HCN and HCl may exceed the max. permissible concns. by factors of 6. 2. and 25. resp. The danger of elevated HCN and HCl concns. is esp. emphasized, since the respiratory filtering systems in mines are not designed for the removal of these gases. RN - 9002-86-2 5 9003-35-4; 57-13-6; 74-90-8; 100-42-5*, 630-08-0; 7647-01-0 EM - 7912 200 SI - CA/091/15256 9J AU - Egan H ; Editor TI - IARC CInternational Agency for Research on Cancer] Scientific Publications. No. 22: Environmental Carcinogens. Selected Methods of Analysis. Vol. 2: Methods for the Measurement of Vinyl Chloride in Poly(Vinyl Chloride), Air, Water, and Foodstuffs SO - 1978,142 pp. LA - ENG CD - BOOKA AB - CBAC COPYRIGHT: CHEM ABS A book. Book vinyl chloride detn Air vinyl chloride detn book Water vinyl chloride detn book Food RNW 1847 00009139 PVC PAGE 83 vinyl chloride detn book RN - 75-01-4; 7732-18-5! 9002-86-2 EM - 7912 201 SI - CA/091/152238A AU - Costa V ; Frongia N AO - Univ. Cagliari, Cagliari TI - Histological and ultrastructural study of the peritoneal changes induced by the endoabdominal inoculation of a single dose of polytvinyl chloride) powder (PVC) in rats SO - Rass. Med. Sarda; VOL 81, ISS 4, 1978,217-35 LA - ITA CD - RMSAA AB - CBAC COPYRIGHT.* CHEM ABS In rats i .p. administration of PVC resulted in granulomas of the peritoneum. (9002-86-2 Polylvinyl chloride)) No neoplastic or preneoplastic alterations were obsd, Histopathol. changes of the lung, liver, and spleen, were also obsd. RN - 9002-86-2 EM - 7912 202 SI - CA/091/135115R AU - Aksenova LP ; Belyaev W 5 Soldatchenkova TP ; Vinogradova LA TI - Study of some hygienic properties of new polymeric furniture covers SO - Sovrem. Gigien. Probl. Okhrany Okruzh. Sredy Gorodov, M.; 1978,49-50' LA - RUS CD - D4J0U AB - CBAC COPYRIGHT: CHEM ABS Title only translated. PVC furniture Escherichia Escherichia PVC furniture Furniture cover polymer Escherichia Leather substitute furniture Escherichia RN - 9002-86-2 EM - 7911 203 SI - CA/091/135114Q AU - Belyaev VV 5 Aksenova LP ; Soldatchenkova TP TI - Sanitary-hygienic study of polymer materials, used for the manufacture of boxes for kitchen furniture SO - Sovrem. Gigien. Probl. Okhrany Okrush. Sredy Gorodov, M.i 1978,51-2 LA - RUS CD - D4J0U AB - CBAC COPYRIGHT: CHEM ABS Title only translated. PVC container toxicity RN - 9002-86-2 EM - 7911 RNW 1848 00009140 PVC PAGE 84 204 SI - CA/091/135113P AU - Druzhinina VA 5 Aksenova LP TI - Toxicological study of wVinilelastikw poly(vinyl chloride) linoleum taking into account its age-related reactivity SO - Sovrem. Gigien. Probl. Okhrany Okruzh. Sredy Gorodov M.; 1978 >59-62 LA - RUS CD - D4J0U AB - CBAC COPYRIGHT: CHEM ABS Title only translated. Polyvinyl chloride toxicity linoleum PVC toxicity linoleum RN - 51-45-6J 9002-86-2; 9074-82-2 EM - 7911 205 SI - CA/091/096123V AU - Ohtsuka K ; Miyo H ; Ohuchi J ; Shiga K '> Muto T AD - Power React. Nucl. Fuel Dev. Corp., Ibaraki TI - Developments in the treatment of solid alpha-bearing wastes at the PNC plutonium fuel facilities SO - Report; ISS PNCT-841-78-09,, 1978,15 pp. LA - ENG CD - D2REP AB - CBAC COPYRIGHT: CHEM ABS Some results of expts. done at PNC are presented on vol. redn. techniques for alpha-contg. wastes. A pilot wood milling machine automatically mills the plywood frames of nipple-connected high-efficiency particulate air (HEPA) filters, which result in fine sized wooden chips, 2 nipples, and the filter components. The filter components are melted in an induction furnace to homogeneous solids. These methods and incineration of wooden chips reduce the stored vol. of HEPA filters to 1/50-1/100 of the original. Polyivinyl chloride) and neoprene rubber are decompd. in coned. H2S04, followed by oxidn. with HN03. (9002-86-2 PVC) The acid digestion process generates Cl-rich gas, from which only Cl is selectively absorbed in water. An alpha-contg. vessel and a glovebox are cut at their installed places without spread of Pu contamination outside the greenhouses RN - 9002-86-2*, 7440-07-5 EM - 7909 206 SI - CA/091/026462F AU - Maleev A j Konstantinova N > Stanoev M 5 Danev S Deredzhyan S AU - Vasileva Z *, Shipkov T AD - Inst. Intern. Dis. Ther., Sofia TI - Study of liver damage in polylvinyl chloride) production workers SO - Probl. Vutr, Med.; VOL 6, ISS 2-3, 1978,92-7 LA - BUL CD - PBVMA AB - CBAC COPYRIGHT: CHEM ABS Examn. of 72 workers from a PVC prodn. plant showed no clear relationship between liver damage and work seniority at the plant (even in the case of workers with a seniority >10 yr); although increased bromosulfophthalein retention (up to 3.2k), reduced thrombocyte counts (220,000) and enlargement of the liver were found in several workers, no actual RNW 1849 00009141 PVC PAGE 85 pathol. occurrences were found* and the anomalies could also be related to excessive consumption of ale. drinks. (9002-86-2 PVC) RN - 9002-86-2J 75-01-4 EM - 7908 207 SI - CA/091/027280G AU - Inoue M AO - Inoue Biodeterioration Lab.* Tokyo TI - Study of film or sheet material having antibacterial and antifungal activities SO - Proc. - Int. Symp. Contain. Control* 4th; 1978*104-6 LA - ENG CD - 39IDA AB - CBAC COPYRIGHT! CHEM ABS 2-(4-Thiazolyl )benzimidazole (I) and N-(fluorodichloromethylthioJphthalimide (II)> when incorporated at 0.3'/. by wt. concn. of each in a poly(vinyl chloride) (PVC) sheet, exhibited bactericidal and fungicidal activity against a no. of microorganisms. (148-79-8 2-(4-Thiazolyl)benzimidazole)(719-96-0 N-(Fluorodichloromethylthio )phthal1 mide)(9002-86-2 Poly(vinyl chloride)) The effect was synergistic, requiring lower concns. of each compd. than that required for each compd. incorporated sep. into the sheet. I and N,N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio Jsulfamide, incorporated at a concn. of 0.4* by wt. each in PVC also exhibited good bactericidal and fungicidal activity. (1085-98-9 N,N-Dimethyl-N'-phenyl-N*-(fluorodichloromethylthi o)sulfamide) These films or sheets offer utility in houses, processing rooms of food and pharmaceutical industries, and in hotels, restaurants and in hospitals. RN - 148-79-8; 719-96-05 9002-86-2; 1085-98-9 EM - 7908 208 SI - CA/090/209437A AU - Carosello TF AD - USA TI - Absorbing liquids using a preparation of expanded silicate-based aggregates SO - U.S. PATENT NO. 4131543 12/26/78 (Progressive Research Products, Inc. ) AB - CBAC COPYRIGHT: CHEM ABS An expanded silicate-based aggregate as a 10 mesh powder, a paste prepd. by mixing the aggregate with a 5-7* soln. of PVCin 15:85 DMSO-Me Et ketone, or nets or blocks prepd. by congealing the PVC-si1icate-based aggregate blend will absorb 10-15 times its wt. of hazardous liq., e.g. HCl, HN03, Me Et ketone, ketones, polychlorinated biphenyl slurries, petroleum, fuel oil, gasoline, solvents, etc., either from land spills or water spills to give a solid relatively harvestable product for disposal. (9002-86-2 PVC) RN - 9002-86-2*, 1343-98-2 EM - 7907 RNW 1850 # 00009142 + PVC PAGE 86 209 SI AU AD TI SO LA CD AB RN EM 210 SI AU AO TI SO LA CD AB RN EM 211 SI AU AD TI SO LA CO AB CA/090/191777Z Lux a J Czech. Suitability of some plastics in aviation from the toxicological standpoint Zpr. VZLUJ ISS 5, 1978,225-34 CZE ZVZLA CBAC COPYRIGHT: CHEM ABS The behavior of plastics used for the construction of airplanes with respect to evolution of toxic substances at elevated temps, was studied. The max. recommended operation temps, for use of plastics in cabins of planes were detd. to be polystyrene 70, polyethylene 100, PVC 70, softened PVC 40, polyiMe methacrylate) 100, aminoplasts 80-100, polyesters 100-110, polyurethane 120, poly(tetrafluoroethylene) 240, and silicones 120.degree.. (9003-53-6 Polystyrene)(9002-88-4 Polyethylene)(9002-86-2 PVC)(9011-14-7 Polytmethyl methacrylate ))(9002-84-0 Poly( tetrafluoroethylene)) 9003-53-6J 9002-88-45 9002-86-2; 9011-14-7; 9002-84-0 7906 CA/090/1917230 Krynska A ; Posniak M ; Grabowski Z Cent. Inst. Work Prot. , Warsaw, Pol. Emission of volatile substances in processing plasticized poly(vinyl chloride) Pr. Cent. Inst. Ochr. Pr.; VOL 28, ISS 96, 1978,71-85 POL PCIOA CBAC COPYRIGHT*. CHEM ABS The amt. and compn. of volatile substances emitted during processing of plasticized PVC were studied in manuf. PVC-coated elec, cables. (9002-86-2 PVC) The expts. showed that the main volatile product emitted in amts. 0.03-0.1 g/kg of raw material was dioctyl phthalate used as plasticizer. (117-81-7 Dioctyl phthalate) The volatile products contained also trace amts, of C6H6, PhMe, and xylene, whereas HCl and CH2:CHCl were practically absent. 9002-86-2*, 117-81-7 7906 CA/090/174039T Kudo S ; Haga N Seibu Polym. Kasei Co. Ltd., Japan Biological nitrogen removal by the plastic filter medium Yosui to Haisui; VOL 20, ISS 10, 1978,1245-51 JPN YOHAA CBAC COPYRIGHT: CHEM ABS A 2-stage reactor, consisting of nitrification and denitrification tanks filled with poly(vinyl chloride) filter medium (sp. surface area 88.4 m2/m3 filter), was used to treat wastewater contg. NH4* 5.8, N03- 18.4, and BOD 18.5 mg/L. (9002-86-2 Polylvinyl chloride)) When the loadings of RNW 1851 <1 d ft 00009143 PVC PAGE 67 BOD, NH4+, and N03- were 39-75, 58 and 122.7 g/m3/day, resp., the removals were 93.1 and 97.IX, resp. at 14-20.degree. and pH 7.3-8.0, with detention time 8 h. RH - 9002-86-2 EM - 7906 212 SI AU AO TI SO AB RN EM CA/090/173936M Frohreich RA ; Scamehorn JF USA Incomplete drying of activated carbon in a process for vinyl chloride monomer reduction in vapors U.S. PATENT NO. 4128405 12/05/78 (Continental Oil Co.) CBAC COPYRIGHT: CHEM ABS Adsorption of vinyl chloride (I) from PVC reactor effluent vapors on incompletely dried activated C under essentially adiabatic conditions with the heat of adsorption of I desorbing water instead of heating the C bed, results in adsorbing greater amts, of I/lb C, less drying needed after regeneration, and less likelihood of undesirable high temp, reactions occurring. (75-01-4 Vinyl chloride)(9002-86-2 PVC) 75-01-45 9002-86-2*, 7440-44-0 7906 213 SI - CA/090/173840K AU - Krasnoshchekov NA J Machula VY ; Kozhukhov NI AD - USSR TI - New individual protective agents in the production of glass fiber and glass-fiber reinforced plastics SO - Plast. Massy; ISS 11, 1978,60-1 LA - RUS CD - PLMSA AB - CBAC COPYRIGHT: CHEM ABS Properties of protective aprons manufd. from thin layer material OS-39, special footwear made from synthetic leather SK-2, protective gloves manufd. from plastisi zed PVC and also of silicone latex PMS-30, used for individual protection from paraffin lubrication agent and synthetic binder of the phenol-formaldehyde copolymer type were tested. (69900-06-7 OS-39)(12712-66-2 SK-2 )(9002-86-2 PVC)(9003-35-4 Phenol-formaldehyde copolymer) All these products were recommended for use in the glass fiber and glass fiber reinforced plastics prodn. plants. RN - 69900-06-7; 12712-66-2*, 9002-86-2; 9003-35-4 EM - 7906 214 SI - CA/090/192509A AU - Barber TA ; Mathis T ; Ihlenfeld JV ; Cooper SI ; Mosher DF AD - Dep. Pathol., Univ. Wisconsin, Madison, Wis. TI - Short-term interactions of blood with polymeric vascular graft materials: protein adsorption, thrombus formation, and leukocyte deposition SO - Scanning Electron Microsc.; ISS 2, 1978,431-40 LA - ENG CD - SEMYB AB - CBAC COPYRIGHT: CHEM ABS Radiolabeling and ultrastructural data RNW 1852 00009144 PVC PAGE 88 showed that rates of thrombus deposition and embolization depended upon the polymeric compn. of the blood-contg. surface. Thus* while thrombi rapidly built up and emboli zed from the PVC surface* little embolisation was obsd. with poly(hydroxyethyl methacrylate)* although radiolabeling indicated the latter to adhere more thrombus than PVC. (9002-86-2 PVC)(25249-16-5 poly(hydroxyethyl methacrylate)) The immunolabeling data suggested interactions between fibrinogen and fibronectin (preadsorbed to tubing) adsorbed from flowing blood and formed blood elements. Biomer consistently proved the least thrombogenic of the polymer surfaces tested, adsorbing lower amts, of fibrinogen from blood, and adhering smaller thrombi. (52503-89-6 Biomer) Thrombi seen on this surface were invariably small and firmly adherent at the end of 2 h blood exposure. Fibronectin preadsorbed to PVC surface increased its thrombogenicity. Thus* the nature of a specific polymer surface* expressed through selective adsorption of plasma proteins, is the key determinant of the thrombogenicity of the surface and the mechanism of thrombus formation on it* as well as its thromboembolic characteristics. RN - 9002-86-2; 25249-16-5; 52503-89-6; 9003-05-8 DTG - HEMATOLOGY EM - 7906 215 SI AU AO TI SO LA CD AB RN EM CA/090/141629G Semenov GN *, Malinin VM ; Kuznetsov AV USSR Reducing the size of the electrostatic charges on PVC resin pneumatic transport lines by humidifying the operating air Proizvod. Pererab. Plastmass Sint. Smol; ISS 2* 1978*42-4 RUS PPPSD CBAC COPYRIGHT: CHEM ABS Humidifying of air to 40/ of the relative humidity caused redn. of the elec, charges from 2500 V/cm to a safe level. This satn. consumed 120 kg/h of steam per 10*000 m3/h of operating air. Existing regulations of humidifying to 70X consume 600-650 kg/h of steam. 9002-86-2 7905 216 SI - CA/090/157100P AD - USA TI - Package of moisture-sensitive material SO - Brit. PATENT NO. 1528239 10/11/78 (Ethicon, Inc.) AB - CBAC COPYRIGHT: CHEM ABS A water vapor-impervious package for surgical sutures consisted of 2 panels of metal foil coated round the periphery with a heat-sealable polymer; after removing all traces of moisture from the package it was heat-sealed by a method which gave a bubble-free seal. E.g.* over a 10-wk period the cumulative permeation through a rectangular package consisting of a laminate of A1 foil (0.035 mm thick) and ionomer film (0.025 mm thick and 0.95 cm wide on 3 sides and 0.63 cm wide on the fourth side) with a bubble-free seal was 0.37 mug H20/wk RNW 1853 II 00009145 PVC PAGE 89 compared with 4.22 mug H20/wk with the same laminate with conventional seal. RN - 7429-90-5; 9002-86-2; 9003-07-0 EM - 7905 217 SI AU AD TI SO LA CD AB RN EM CA/090/157027V Carli F ; Si mi oni L Pharm. Techno!. Lab., Carlo Erba Res. Inst. Milan* Italy Kinetics of liquid capillary penetration into inert polymer matrixes Pharm. Acta Helv.; VOL 53, ISS 11, 1978,320-6 ENG PAHEA CBAC COPYRIGHT: CHEM ABS The Kinetics of H20 penetration into inert polymer matrixes contg. 10'/. aspirin was studied. PVC and vinyl acetate-vinyl chloride copolymer (I) matrixes were satd. within tens of seconds, whereas the I + PTFEand acrylic matrixes within hours. (9002-86-2 PVC)(9003-22-9 Vinyl acetate-vinyl chloride copolymer)(9002-84-0 PTFE) The vols. of satn. were different, with polyethylene matrixes not penetrated at all. (9002-88-4 Polyethylene) A modified Washburn equation and Hg porosimetry showed that H20 penetration into plastic matrix tablets strictly depended not only on the matrix wettability and mean pore radius, but also on its pore-size distribution. The Hg porosimetry data also demonstrated that not all the pores can be filled by liq. Finally the drug diffusion from these matrixes depended on the penetration kinetics. The lag time in achieving a const, release was related to the time necessary for the satn. of the capillaries by the penetrating liq., whereas the rate of release was influenced by the pore vol. effectively penetrated by H20. 9002-86-2? 9003-22-9; 9002-84-0J 9002-88-45 39301-09-2 7905 218 SI AU AD TI SO LA CD AB CA/090/142140C Yamamoto N 5 Yamashita I 5 Hayashi K Gov. Ind. Res. Inst., Osaka, Japan Biostability of synthetic polymeric materials Osaka Kogyo Gijutsu Shikensho Kiho5 VOL 29, ISS 3, 1978,203-12 JPN OKGKA CBAC COPYRIGHT: CHEM ABS The following polymers were tested: polytetrafluoroethylene (PTFE), polyMe methacrylate (PMMA), polystyrene (PST), polyvinyl acetate (PVAc), polyvinyl chloride (PVC), polyacrylonitrile (PAN), vinyl chloride carbon monooxide copolymer (PVC-CO), polyethylene terephthalate (PET), polycarbonate (PC), polyether-polyester (PEPE), poly-epsilon-caprolactone (PCL), Nylon-6 (NY), pertially methoxymethylated Nylon-6 (MNY), polygamma-methyl-L-glutamate (PMG), polyether polyurethane (PU), and cellulose acetate (CeAc). (9002-84-0 Polytetrafluoroethylene)(9011-14-7 Polymethylmethacrylate )(9003-53-6 Polystyrene )(9003-20-7 Polyvinylacetate )(9002-86-2 Polyvinylchloride)(25014-41-9 # RNW 1854 00009146 PVC PAGE 90 Polyacrylonitrile )(31763-26-5 vinyl chloride carbon monooxide copolymer )( 25038-59-9 Polvetbyleneterephthalate)(25766-59-0 Polycarbonate)(24980-41-4 Poly-.epsiIon.-caprolactone)(25038-54-4 Nylon-6)(25038-54-4 methoxymethylated Nylon-6 )( 25086-16-2 Poly.gamma.-methyl-L-glutamate )(9004-35-7 Cellulose acetate ) Films prepd. from the polymers without additives were implanted s.c. into dogs for 1 yr (in vivo test). The samples were immersed in pseudo-extracellular fluid (PECF) at 37.degree, for comparative purpose (in vitro test). Biostability of these polymers was checked by viscometry and mech. testing. The results of the in vitro tests were fairly consistent with those of the corresponding in vivo ones. It was found that the main chain of PTFE> PMMA, PST, and PVAc was actually stable. PAN, PVC, and PVC-CO became partly insol. in the original solvents and their mech. properties were considerably changed form those of the original films. On the other hand, data of the intrinsec viscosity indicated that most of the condensation polymers were not stable. The orders of the biostability of the polymers tested were found to be PET.gtoreq.PC>PEPE>>PCL for polyesters, and NY>MNYPMG for polyamides. The IR spectra of CeAc showed that the side chain was partly hydrolyzed. In the case of PVC, PVC-CO, and CeAc, a trace of org. compds. eluted to PECF was detected by the IR spectrometry. Thus, the in vitro method is convenient for the screening of polymeric biomedical materials from the viewpoint of the biostability. RN - 9002-84-05 9011-14-7; 9003-53-6*, 9003-20-7*, 9002-86-2*. 25014-41-9; 31763-26-5; 25038-59-9; 25766-59-0; 24980-41-4; 25038-54-4*, 25038-54-4; 25086-16-2; 9004-35-7 EM - 7905 219 SI - CA/090/133761D AU - Draganov I *, Raichev R ; Radeva M AD - Med. Akad., Sofia, Bulg. TI - Studies on the synblastomogenic effect of poly(vinyl chloride) and 20-methylcholanthrene SO - Onkologiya (Sofia); VOL 15, ISS 3, 1978,132-7 LA - BUL CD - ONKLA AB - CBAC COPYRIGHT: CHEM ABS S.c. implantation of 2 .times. 2 cm poly(vinyl chloride) plates, followed after 30 days by a s.c. injection of 10 mg 20-methylcholanthrene (I) increased the frequency of tumors to 68k from 17.5-20k for rats treated with poly(vinyl chloride) alone and 42k for rats treated with I alone. (9002-86-2 Poly(vinyl chloride))(56-49-5 20-Methylcholanthrene) I shortened the latent period of tumor development without affecting the size of the tumors. Polytvinyl chloride) failed to alter the effect of I on the latent period of tumor development. RN - 9002-86-25 56-49-5 EM - 7905 RNW 1855 00009147 PVC PAGE 91 220 SI AU AD TI SO AB RN EM 221 SI AU AD TI SO LA CD AB RN EM CA/089/151897M Petersen 0 5 Schmidt HD Ger. Electrochemical cell for determination of hydrogen sulfide in a gas mixture Ger. Offen. PATENT NO. 2657570 06/22/78 (Bayer A.-G. ) CBAC COPYRIGHT: CHEM ABS The electrochem. cell has Ag/Ag2S working and ref. electrodes and Cu sheet auxiliary electrodes surrounded by a Pb02 electrolyte. The electrolyte for the working electrodes is a gel-type sheet of polytvinyl chloride) 10-20, propylene carbonate 20-30 di-Et phthalate 20-30> and potassium hexafluorophosphate .apprx.l wt.X. (9002-86-2 Polyvinyl chloride )(108-32-7 Propylene carbonate )(84-66-2 di-Et phthalate)(17084-13-8 potassium hexafluorophosphate) 9002-86-25 108-32-75 84-66-25 17084-13-85 1309-60-05 7440-22-45 7440-50-85 7783-06-45 30695-60-4 7811 CA/089/151718D Morikawa T Fire Res. Inst. Japan, Tokyo, Japan Evolution of soot and polycyclic aromatic hydrocarbons in combustion Shobo Kenkyusho Hokoku5 VOL 45,, 1978,13-24 ENG SHKHB CBAC COPYRIGHT: CHEM ABS Polymers, e.g. polyethylene (I), polystyrene (II), PVC, poly(Me methacrylate), polypropylene, polyacrylonitrile (III), and cellulose, were burned or pyrolyzed in a furnace under different temp, and air supply conditions and the emission of soot and polycyclic arom. hydrocarbons detd. (9002-88-4 Polyethylene)(9003-53-6 Polystyrene )(9002-86-2 PVC)(9011-14-7 Poly(methyl methacrylate ))(9003-07-0 Polypropylene )(25014-41-9 Polyacrylonitrile)(9004-34-6 cellulose ) Evolution of soot and benzoCa]pyrene (IV) increased with increasing temp. (50-32-8 BenzoCaJpyrene) At high temps, with relatively low air supply rate, more IV was evolved from I than from II, while 3-4 times greater amt. of soot was evolved from II. Evolution of IV was small from PVC, III and from I in halogenated hydrocarbon-contg. air. No direct relation was obsd. between soot and IV prodn. 9002-88-45 9003-53-65 9002-86-25 9011-14-75 9003-07-05 25014-41-95 9004-34-65 50-32-85 56-55-35 120-12-75 129-00-05 192-97-25 198-55-05 206-44-05 218-01-95 612-71-55 9049-86-95 25038-54-4 7811 RNW 1856 7T 00009148 PVC PAGE 92 222 SI CA/089/141862G AU Mulla MS ; Darwazeh HA AO Dep. Entomol., Univ. California, Riverside, Calif. TI Effectiveness and residual activity of polymer formulations of mosquito larvicides SO Proc. Pap. Annu. Conf. Calif. Mosq. Vector Control Assoc.; VOL 46,, 1978,123-5 LA ENG CD PCMVD AB CBAC COPYRIGHT: CHEM ABS Dursban (I) formulation in polyivinyl chloride) and temephos formulation in polyethylene were examd. in the lab. and field for their control of mosquito larvae. (2921-88-2 Dursban)(9002-86-2 Poly(vinyl chloride))(3383-96-8 Temephos)(9002-88-4 Polyethylene) In the lab. I formulation at the rate of 1 ppm released sufficient toxicant to cause complete larval mortality of Culex pipiens quinquefasciatus exposed for 24 h. The lower rates of 0.5 and 0.25 ppm resulted in complete mortality after 7 and 14 days, resp. The temephos formulations were inactive in the lab. expts. In the 2 field studies where the mosquito populations were C. tarsalis and C. tarsalis + Culiseta inornata + Anopheles franciscanus, I (1 and 2 lb/acre) and temephos (1.25 and 2.5 lb/acre) formulations failed to give adequate larval control in ponds where the water flow into the ponds was >4 gal/min. When the flow was <1 gal/min, I (1 and 2 lb/acre) prevented larval breeding for 35 days. Temephos (2 lb/acre) formulation with the smaller size polymer particle had good larvicidal action for 21 days. However 5 wk after treatment with either compd.,'when the ponds were dried for 3 mo and then reflooded, mosquito larval breeding began within 10 days after reflooding. RH 2921-88-2*, 9002-86-2; 3383-96-8; 9002-88-4 EM 7811 ___ - % 223 SI AU AD TI SO LA CD AB RN DTG EM CA/089/141362U Anderson RC > Alarie YC Grad. Sch. Public Health, l*-iiv. Pittsburgh, Pittsburgh, Pa. Approaches to the evaluation of the toxicity of decomposition products of polymeric materials under thermal stress J. Combust. Toxicol.; VOL 5, ISS 2, 1978,214-21 ENG JCTOD CBAC COPYRIGHT: CHEM ABS Thermal decompn. products from several polymeric materials were investigated using death as an index of toxicity. The data were analyzed in several ways. A concn.-response relation was absolutely essential to make valid comparisons between materials and the time to a toxic effect approach was not broad enough to permit such comparisons. 7723-14-0; 9002-84-0; 9002-86-2; 9003-35-4; 9011-05-6; 67760-64-9; 67760-65-0 LETHAL CONCENTRATIONS 7811 RNW 1857 00009149 PVC PAGE 93 224 SI - CA/089/124033V AU - Boudsne C ; Jouany JM ; Truhaut R AD - Fac. Sci. Pharm.Biol., Univ.Paris-5ud> Chatenay-Malabry, Fr. TI - Study of the toxicity of combustion products and pyrolysis of materials used in the building industry. Study of acute toxicity, by pulmonary route, of the gases and vapors of combustion and pyrolysis of a chlorinated polymer SO - Arch. Mai. Prof. Med. Trav. Secur. Soc.j VOL 39, ISS 1-2, 1978,3-24 LA - FRE CD - AMPMA AB - CBAC COPYRIGHT: CHEM ABS The toxicity symptoms obsd. in rats and rabbits following exposure to gases and vapors from pyrolysis of polyivinyl chloride) were similar to those caused by HCl, but the latter was not totally responsible for the toxicityof polymer pyrolysis products. (9002-86-2 Polyvinyl chloride) Products from 800.degree, pyrolysis were more toxic than those from 400.degree, pyrolysis. Traps for HCl decreased the toxicity of the pyrolysis products. RN - 9002-86-2 DTG - LETHAL DOSAGE } BLOOD CONCENTRATIONS EM - 7810 225 SI AU AD TI SO AB RN EM CA/089/117307J Deuschel W Ger. Treatment of tetrahydrofuran solutions containing polyCvinyl chloride) Ger. Offen. PATENT NO. 2701352 07/20/78 (BASF A.-G.) CBAC COPYRIGHT: CHEM ABS THF is sepd. from PVC solns. by distn. in the presence of a surfactant to give a PVC solid which is completely free of THF and can be disposed of without danger to the enviornment. (109-99-9 THF)(9002-86-2 PVC) The surfactant prevented deposition of PVC on the app. during distn. Thus, 8000 Kg THF contg. IX PVC and 6.5X water was added to a mixt. of water 2000, Na tetradecanesulfonate 25, and 80:20 THF-water mixt. 1000 Kg, and the mixt. was distd. to remove THF, leaving a mixt. of water and powd. PVC contg. no THF. (27175-91-3 Sodium tetradecanesulfonate) 109-99-9J 9002-86-25 27175-91-3 7810 226 SI AU AD TI SO AB CA/089/117306H Iiyama S ; Hara S Japan Removal of dispersed components from sewages Japan. KoKai PATENT NO. 78 63759 06/07/78 (Mitsui Toatsu Chemicals, Inc.) CBAC COPYRIGHT: CHEM ABS Sewage contg. dispersed components is clarified by aeration in the presence of a peroxide and a peroxide-decompg. transition metal compd. Thus, sewage contg. 700 ppm emulsified fuel oil and 30 ppm Na dodecylbenxenesulfonate RNW 1858 71 00009150 PVC PAGE 94 RN EM 227 SI AU AD TI SO LA CD AB RN EM 228 SI AU AD TI SO LA CD AB RN EM was mixed with 1900 ppm H202 and 3600 ppm FeS04, aerated* treated with CaC03 and passed through a PVC bead-packed column. (25155-30-0 Sodium dodecylbenzenesulfonate)(9002-86-2 Poly(vinyl chloride) The treated water was colorless and transparent. 25155-30-0J 9002-86-2J 471-34-1J 7720-78-7; 7722-84-1 7810 CA/089/135018V Zhurkov VS USSR Apparatus -for the electrochemical purification of waste waters from polymer production Plast. Massy; ISS 2, 1978,58-60 RUS PLMSA CBAC COPYRIGHT: CHEM ABS An electrodialyzer for electrochem. purifn. of wastewaters from polymer prodn. is described. Wastewaters from PVC prodn., after treatment in the app. for 6 min at 0.4 A/dm2 had pH 6.9, dissolved solids 340 mg/L and vinyl chloride content 12.5 mg/L, as compared with the initial values of 5.5, 9870, and 68.5, resp. (9002-86-2 PVC) Treatment of wastewater from poly(Me methacrylate) prodn., for 8 min at 0-0.4 A/dm2* changed the pH from 6.5 to 7.5, COD from 9600 to 380 mg 0/L, dissolved solids from 8600 to 800 mg/L, Me methacrylate content from 190 to 90-110 mg/L and the polymer from 900 to 0 mg/L. (9011-14-7 PolyCmethyl methacrylate)) 9002-86-2; 9011-14-7 7810 CA/089/117531C Balueva LV ; Vinnikov YY ; Divakova NA Vses. Nauchno-Issled. Proektn. Inst. Khim. Prom., Sverdlovsk, USSR Permeation of mixtures of organic substances in polymer membranes Maslo-Zhir. Prom-st.; ISS 7, 1978,41 RUS MZPYA CBAC COPYRIGHT: CHEM ABS High-d. polyethylene and polytvinyl chloride) were essentially impermeable to a C02 ext. contg. a terpene mixt. (9002-88-4 Polyethylene )(9002-86-2 poly(vinyl chloride))(124-38-9 Carbon dioxide) However, low-d. polyethylene showed a selective permeability to alpha-pinene, camphene, DELTA3-carene, and limonene. (80-56-8 .alpha.-Pinene )(79-92-5 Camphene)(13466-78-9 .DELTA.3-Carene)(138-86-3 Limonene) The percentage of terpenoids passing through the membranes as well as their rate of penetration depended on their concns. in C02 ext. Permeation through the polymers was monitored by gas chromatog. The data are useful for packing and storing of C02 exts. of material (e.g. fir) useful in chem. and cosmetic industry. 9002-88-4; 9002-86-2*, 124-38-9; 80-56-8; 79-92-5; 13466-78-9; 138-86-3 7810 RNW 1859 00009151 PVC PAGE 95 229 SI - CA/089/101971K AU - Fukuda T ; Shibata T ; Hosokawa K AD - Japan TI - Ant and termite control 50 - Japan. Kokai PATENT NO. 78 59032 04/27/78 (Furukawa Electric Co., Ltd. ) AB - CBAC COPYRIGHT: CHEM ABS Formulations contg. insect repellents and plastic carrier materials are described for control of ants and termites. Thus, pellets made from a dieldrin-aldrin mixt. and poly(vinyl chloride) applied to soil in which pine rods were buried prevented termite infestation for 2 yr. (8017-73-0 dieldrin-aldrin mixt.M9002-86-2 Polyfvinyl chloride)) RN - 8017-73-05 9002-86-2; 3734-48-3; 67585-75-5 EM - 7810 230 51 - CA/089/101965M AU - Pasarela NR AD - USA TI - Acaricidal agent on a poly(vinyl chloride) carrier 50 - Ger. Offen. PATENT NO. 2754700 06/15/78 (American Cyanamid Co.) AB - CBAC COPYRIGHT: CHEM ABS Acaricidal collars for pets are described, made of 3,3-dimethyl-alpha-cyano-m-phenoxybensyl spiro(cyclopropane-1,1'-indene)-2-carboxylate (I) incorporated into PVC. (60148-52-9 3,3-dimethyl-.alpha.-cyano-m-phenoxybenzyl spiro(cyclopropane-1,1'-indene)-2-carboxylate )(9002-86-2 PVC) Collars for flea control are made of 0,0,0',O'-tetramethyl 0,0*-thiodi-p-phenylene phosphorothioate in PVC. (3383-96-8 0,0,0',0'-Tetramethyl-0,0'-thiodi-p-phenylenephosphorothioate ) Thus, collars made of PVC 43.9, di-octyl phthalate 25, Thermolite-831 0.9, and I 24.75 parts kept dogs free of Dermacentor variabilis and Rhipicephalus sanguineus for 12 wk in artificial infestation expts. RN - 60148-52-9*, 9002-86-2; 3383-96-8 EM - 7810 231 51 - CA/089/101125N AU - Hilado CJ ; Cumming HJ ; Casey CJ AD - Fire Saf. Cent., Univ. San Francisco, San Francisco, Calif. TI - Toxicity of pyrolysis gases from natural and synthetic materials SO - Fire Technol.5 VOL 14, ISS 2, 1978,136-46 LA - ENG CD - FITCA AB - CBAC COPYRIGHT*. CHEM ABS Toxicity data (mice) for various natural (wood, cotton, silk, etc.) and synthetic materials (polymers, elastomers, etc.) under simulated fire conditions are provided, together with comparisons between these materials. The most toxic wood, synthetic polymer, and elastomer evaluated were beech, poly(phenylene sulfide), and acrylonitrile rubber, resp. RN - 9002-86-2; 9002-88-4; 9003-53-65 9003-56-95 9010-98-4; 9011-14-75 9016-75-55 9041-80-95 24936-68-3; 24937-79-9*, 24981-14-45 25037-45-05 25189-22-4; 27026-93-35 67183-98-6 EM - 7810 RNW 1860 TT # 00009152 PVC PAGE 96 232 SI AU AD TI SO LA CD AB RN EM 233 SI AU AD TI SO AB RN EM 234 SI AU AD TI SO AB RN EM CA/089/079525U Kincius EJ Halstab Div. Hammond Lead Prod. Inc., Hammond* Indiana Safe handling of powdered lead stabilizers for PVC Soc. Plast. Eng., Tech. Pap.,' VOL 24,, 1978,769-72 ENG SPEPA CBAC COPYRIGHT: CHEM ABS Safety measures for handling Pb heat stabilizers, e.g. tribasic lead sulfate and basic lead carbonate, for PVC are discussed. (12202-17-4 Tribasic lead sulfate)(12326-84-0 Basic lead carbonate )(9002-86-2 PVC) A limit of 200 mg Pb/m3 air and 60 mug Pb/100 g blood was established. 12202-17-4J 12326-84-0; 9002-86-2 7809 CA/089/094729G Tsuji S Japan Thermal decomposition of carbohydrate wastes Japan. Kokai PATENT NO. 78 12773 02/04/78 (Hitachi Plant Engineering and Construction Co., Ltd.) CBAC COPYRIGHT: CHEM ABS Carbohydrate wastes are mixed with Cl-contg. wastes (e.g., poly(vinyl chloride)) and compd(s). of Ca, Mg, Fe, and Zn, and dry-distd. at >500.degree, to give decompn. gases, tar-like components, and active carbides. (9002-86-2 Poly(vinyl chloride) The decompn. gases are condensed, and the resulting condensation liq. is contacted with the active carbides to remove COD components from the condensation liq. 9002-86-2; 7439-89-6! 7439-95-4; 7440-66-6; 7440-70-2 7809 CA/089/094668M Hirotsuka T ; Fujii T Japan Utilization of industrial dusts Japan. Kokai PATENT NO. 78 18679 02/21/78 (Kubota, Ltd.) CBAC COPYRIGHT: CHEM ABS Metal-contg. dusts (such as Fe oxide dusts) collected in dust removers are blended with liq. thermoplastic substances (such as resins and rubbers) and a plasticizer, then the mixt. is cured to give flexible materials having high specific wt. Thus, Fe oxide dust 100, PVC 100, and a plasticizer 60 parts were kneaded and extruded into a flexible sheet whose tensile strength, elongation, hardness, and d. were 137 kg/cm2, 223/, 91, and 1.70, resp. <9002-86-2 PVC) The sheet had abrasion resistance and sound proofing properties. 9002-86-25 1332-37-2 7809 RNW 1861 M 00009153 PVC PAGE 97 235 SI AU AD TI SO LA CD AB RN EM 236 SI AU AD TI SO LA CD AB RN EM 237 SI AU AD TI SO LA CD AB RN EM CA/089/094295N Ball GW ; Parker RB * Stevens K G.W.B. Electron. Ltd.* Hayes/Middlesex* Engl. The mass spectrometer as a continuous monitor for pollutants and toxic hazards Adv. Mass Spectrom.J VOL 7B,, 1978,1687-90 ENG AMSPA CBAC COPYRIGHT: CHEM ABS Air pollution by vinyl chloride in the prodn. of PVC was monitored by a transportable mass spectrometer (EMI monitor). (75-01-4 Vinyl chloride )(9002-86-2 PVC) 75-01-4} 9002-86-2 7809 CA/089/094251V Khavezov I ; Tamnev BK Inst. Gen. Inorg. Chem., Sofia* Bulg. Flameless atomic absorption determination of beryllium in air fiIters Fresenius' Z. Anal. Chem.* VOL 291* ISS 2* 1978,127 ENG ZACFA CBAC COPYRIGHT: CHEM ABS Be (0.5-30 .times. 10-7 g) was detd. with at. absorption spectrophotometer with C cup atomizer at 234.9 nm. The air was filtered through a PVC filter. (9002-86-2 PVC) A mixt. of Ar and propane when used as a purge gas through the C cup atomizer increased the sensitivity of the detn. 2 times. 9002-86-2; 7440-41-7 7809 CA/089/094923R Guven KC ; Gulhan S 5 Altinkurt T Eczacilik Fak. Istanbul Univ., Istanbul* Turk. The stability of belladonna extract Eczacilik Bui.; VOL 20, ISS 1, 1978,9-12 ENG ECBUA CBAC COPYRIGHT: CHEM ABS Polyethylene (I) capped brown glass containers were the best for storing belladonna exts.* preventing moisture adsorption of samples stored for 6 mo at different relative humidities at room temp. (9002-88-4 Polyethylene) Other containers tested for storage stability of the exts. were I capped I containers* I capped polystyrene tubes* and polyvinylchloride bags covered with Al foil. (9003-53-6 Polystyrene)(9002-86-2 Polyvinylchloride) For some glass containers plastic caps were used. The atropine sulfate and scopolamine-HBr content of the samples were identified by paper chromatog. and detn. by thin-layer chromatog. (55-48-1 Atropine sulfate )(114-49-8 Scopolamine hydrobromide ) Degrdn. products were not identified. 9002-88-45 9003-53-6; 9002-86-2J 55-48-1; 114-49-8; 7429-90-5 7809 RNW 1862 00009154 PVC PAGE 98 238 SI - CA/089/080214Y AU - Bernhard WN ; Yost LC Turndorf H ; Cottrell JE ; Paegle RD AD - Dep. Anesthesiol., New York Univ. Med. Cent., New York, N. Y. TI - Physical characteristics of and rates of nitrous oxide diffusion into tracheal tube cuffs SO - Anesthesiology; VOL 48, ISS 6, 1978,413-17 LA - ENG CD - ANESA AB - CBAC COPYRIGHT: CHEM ABS Phys. characteristics and time-related vol. changes in aii--inflated tracheal tube cuffs exposed to N20 were measured in an environmental chamber. Cuff wall diam., thickness, residual vol., and length were also measured. Gas vols. in most air-inflated tracheal tube cuffs increased 1.7 to 7 mL <30 min of exposure to pure N20. Diffusion rates into most cuffs varied inversely with cuff thickness and directly with the partial pressure of N20. There were significant differences in diffusion rates among cuffs of the same compn. with different ds. or porosities as well as among cuffs of different compns. Cuff diams. ranged from 13.8 to 32 mm; thicknesses from .033 to .55 mm; residual vols. from .22 to 19.4 mL; lengths from 23.1 to 49.1 mm. Intracuff vol. and pressure increase related to gas diffusion into air-inflated cuffs should be periodically adjusted or pressure automatically controlled during nitrous oxide anesthesia. Large-diam., thin-walled cuffs are recommended. RN - 9002-86-2; 10024-97-2 EM - 7809 239 SI - CA/089/065307N AU - Fukamachi K ; Ishibashi N AD - Fukuoka Environ. Res. Cent., Fukuoka, Japan TI - Chlorpheniramine sensitive electrode SO - Bunseki Kagaku; VOL 27, ISS 3, 1978,152-5 LA - JPN CD - BNSKA AB - CBAC COPYRIGHT: CHEM ABS An ion-sensitive electrode with a polytvinyl chloride) (PVC) matrix membrane responsive to chlorpheniramine (I) was developed. (9002-86-2 Poly(vinyl chloride ))(132-22-9 Chlorpheniramine) PVC (12.57. )-tetrahydrofuran soln., 1,2-di chloroethane soln. of I tetraphenylborate salt (18.75X), and dioctyl phthalate were mixed in wt. ratio of 8:4:2, spread over a glass plate, and left for 2 days to evap. to dryness. A sheet of the membrane was affixed to a PVC tube which contained an Ag/AgCl electrode. The ion-selective electrode exhibited a Nernstian response to the I ion in the concn. range from 10-1.5 to 10-4.5 M. The potential was independent of pH from 4.5 to 8.0. Interferences of Na+ K+ NH4+, and Ca++ were sufficiently low for the detn. of I. Ephedrine, methylephedrine, caffeine, and antipyrine did not interfere at pH from 5 to 7, whereas diphenhydramine and tripelenamine ions did. (299-42-3 Ephedrine )(552-79-4 Methylephedrine)(58-08-2 Caffeine )(60-80-0 Antipyrine)(58-73-1 Diphenhydramine)(91-81-6 Tripelenamine) The electrode was useful RNW 1863 00009155 PVC PAGE 99 as an indicator electrode for the pptn. titrn. of I with NaBPh4. RN - 9002-86-25 132-22-95 299-42-3; 552-79-4; 58-08-2; 60-80-0; 58-73-15 91-81-65 7440-09-7; 7440-70-2; 14798-03-9 EM - 7809 240 SI - CA/089/065234M AU - Sako E AD - Green Cross Corp., Tokyo, Japan TI - Phthalic acid estei--free poly(vinyl chloride) (PVC) for medical use> medidex SO - Plast. Age; VOL 24, ISS 3, 1978,75-82 LA - JPN CD - PLAOA AB - CBAC COPYRIGHT: CHEM ABS Medidex, a mixt. of PVC with polyurethane as a plasticiser, was prepd. and was stronger than polyurethane and could be ethylene oxide sterilised (with medical data). (9002-86-2 medidex) RN - 9002-86-2 EM - 7809 241 SI - CA/089/054757H AU - Greenberg J AD - USA TI - Slow-release insecticide SO - Ger. Offen. PATENT NO. 2750145 05/18/78 (Robins, A. H., Co,. Inc.) AB - CBAC COPYRIGHT: CHEM ABS Naled, eventually combined with another insecticide, is incorporated into a polymer, such as PVC, and processed by extrusion to give slow-release insecticidal plastic bodies, such as collars for domestic animals. (300-76-5 Naled)(9002-86-2 PVC) It is essential to have all the app. which is in contact with the compn. made of acid-resistant stainless steel, in order to prevent degrdn. of the insecticide and carbonization of the polymer. Thus, a compn. is given, contg. PVC dispersion resin 40, PVC mixed resin 15, dioctyl phthalate 20.5, epoxidized octyl tallate 25, Ca-Zn stabilizer 1, Naled 21, and bromodichloroacetaldehyde 2 parts by wt. RN - 300-76-5; 9002-86-2 EM - 7809 242 SI - CA/089/054484S AU - Anderson RC ; Alarie YC AD - Grad. Sch. Public Health, Univ. Pittsburgh, Pittsburgh, Pa. TI - Screening procedure to recognize "supertoxic" decomposition products from polymeric materials under thermal stress SO - J. Combust. Toxicol.; VOL 5, ISS 1, 1978,54-63 LA - ENG CD - JCTOD AB - CBAC COPYRIGHT: CHEM ABS In order to illustrate a simple procedure for identification of materials releasing highly toxic decompn. products under thermal stress, the LC50 were detd. for each of a series of materials. Concn. response curves were obtained by exposing mice to pyrolysis products of weighted smaples (heated at 20.degree./min) and recording the no. of RNW 1864 00009156 PVC PAGE 100 deaths at each sample wt. In both long (30 min exposure* 10 min recovery) and short (10 min exposure* 5 min recovery) expts.* there was a factor of 100 between the LC50 of the most toxic pyrolysis products and that of the least. In each case* polytetrafluoroethylene was the most toxic material tested. Using a 30 min exposure* Douglas Fir as a ref. material* and groups sepd. by 1 order of magnitude* the following calssification of materials is suggested: less toxic than Douglas Fir, as toxic as Douglas Fir, more toxic than Douglas Fir, and supertoxic. RN - 9002-84-0; 9002-86-25 9010-98-4; 9011-05-6 DTG - LETHAL CONCENTRATIONS EM - 7809 243 SI AU AD TI SO LA CD AB RN EM CA/089/054229N Kourtides DA ; Gilwee WJ Jr ; Hilado CJ Ames Res. Cent.* NASA* Moffett Field* Calif. Relative toxicity of the pyrolysis products from some thermoplastic and thermoset polymers Polym. Eng. Sci.; VOL 18, ISS 8, 1978,674-6 ENG PYESA CBAC COPYRIGHT: CHEM ABS When 1 g samples of 25 thermoplastic and thermoset polymers were tested for the toxicity of their pyrolysis products to mice* with times to death ranged from 10.26 and 10.57 min for the S-contg. polymers polyether sulfone and polyphenylene sulfide* to 24.80 and 21.76 for the Cl-contg. polymers chlorinated polyethylene and chlorinated PVC. (9016-75-5 Polyphenylene sulfide )(9002-88-4 Polyethylene)(9002-86-2 PVC) However, the latter 2 polymers showed the shortest times to incapacitation* 7.50 and 6.29 min* resp. Poly(vinyl fluoride), poly(vinylidene fluoride)* and chlorinated PVC were among the materials with the apparent highest lethal concns. (ALC50) required to produce death in 50X of the animals within 30 min. (24981-14-4 Poly(vinyl fluoride))(24937-79-9 Poly(vinylidene fluoride)) A toxic threat index calcd. as the product of time to death and ALC50 divided by 10*000 gave values ranging from 69.06 and 60.53 for Nylon 6 and polyethylene to 2.10 and 6.39 for cured fluorene polycarbonate and poly(vinylidene fluoride)* resp. (25038-54-4 Nylon 6) 9016-75-5! 9002-88-4; 9002-86-2; 24981-14-4J 24937-79-9; 25038-54-4*. 9003-53-6*, 9003-56-9; 9008-66-6; 9010-98-4; 9011-14-7; 9041-80-9; 24936-68-3; 25037-45-0; 27754-75-2; 32131-17-2; 62238-79-3 7809 RNW 1865 00009157 PVC PAGE 101 244 SI AU AD TI SO AB RN DTG EM 245 SI AU AD TI SO LA CD AB RN EM 246 SI AU A0 TI SO LA CD AB CA/089/048921R Asai M > Tsuda K 5 Okada A Japan Prevention of leaching of additives from poly (vinyl chloride) Japan. Kokai PATENT NO. 78 16085 02/14/78 (Agency of Industrial Sciences and Technology) CBAC COPYRIGHT: CHEM ABS The surface of the biomedical material poly(vinyl chloride) is treated with fluorohydrocarbons in the presence of inert gases to prevent the leaching of additives from the material. (9002-86-2 Poly(vinyl chloride)) Thus* poly(vinyl chloride) together with bis(ethylhexyl) phthalate and Ca stearate (stabiliser) were made into sheets. (117-81-7 bis(ethylhexyl) phthalate) The sheets were pretreated with Ar at 0.2 Torr and then treated with tetrafluoroethylene at 0.05 Torr for 45 min. (116-14-3 Tetrafluoroethylene) After immersion in bovine blood plasma for 64 h* only <0.008 mg plasticiser/50 mL was detected in the plasma compared with 2.67 mg plasticiser/50 mL for untreated sheets. 9002-86-2J 117-81-75 116-14-3; 116-15-4 BLOOD CONCENTRATIONS 7808 CA/089/048866B Takamatsu T Inst. Phys. Chem. Res.* Tokyo* Japan Blood compatibility of biopolymer materials Igaku No Ayumi; VOL 105, ISS 5, 1978,342-51 JPN IGAYA CBAC COPYRIGHT: CHEM ABS The Raynauld coeff., and surface tension of poly(ethylene chloride), polyethylene phthalate* Nylon 66* Kel F* polv(Me methacrylate )* poly(vinylidene fluoride), polystyrene* and segmented polyurethane are summarised. (9002-86-2 Polyethylene chloride)(25248-17-3 polyethylene phthalate )(32131-17-2 Nylon 66 )(9002-83-9 Kel F)(9011-14-7 Poly(methyl methacrylate))(24937-79-9 Polyvinylidene fluoride )(9003-53-6 Polystyrene) The physicochem. properties and anticoagulant potency of chem. modified (polar group-bearing) synthetic polymers are presented. 9002-86-2; 25248-17-3J 32131-17-2; 9002-83-9; 9011-14-7; 24937-79-9; 9003-53-6 7808 CA/089/030822Z Walter M Labor Packungspruef. Ciba-Geigy A.-G., Stein, Swits. Experience with IR (spectroscopy) in the identification of synthetic materials Acta Pharm. Technol.; VOL 24, ISS 1, 1978,91-104 GER APTED CBAC COPYRIGHT: CHEM ABS Pharmaceutical packaging materials RNW 1866 71 m 00009158 PVC * PAGE 102 RN EM 247 SI AU AD TI SO AB RN EM 298 SI AU AD TI SO LA CD AB were identified by routine IR-spectroscopy as part of quality control procedures. Methods and techniques were discussed. Elastomers* glass samples* polymer films* foils* etc. were tested and evaluated. 75-35-45 9002-83-9; 9002-85-1? 9002-86-2? 9002-88-4; 9003-07-0? 9003-53-6? 9004-35-7? 9004-70-0? 24937-78-8; 37226-48-5 7808 CA/089/030611E Rinaldi E ? Moldovanyi L Switz. Solid, shape-retaining aii--improving preparation with evaporating ac tion Swiss PATENT NO. 594415 01/13/78 (Ciba-Geigy A.-G. ) CBAC COPYRIGHT: CHEM ABS An air deodorizing prepn. consists of a gel which does not shrink or disintegrate during use* contg. perfume and an olefinic ale. or other unsatd. compd. which reacts with odorous compds. in the air to convert them to nonodorous compds. The gel consists of a hydrophobic paraffin gelated with Si02* Al soap, and an org. hydrophobic bentonite deriv., on a polymer resin. For example* 3.5 parts aluminum distearate was added to 56 parts liq. paraffin at 95.degree.. (300-92-5 Aluminum distearate) The mixt. was gelated by heating to 115.degree, for 15 min., and cooled to 90.degree.. Then linalool 20, diethyl fumarate 12* citral 3.5* and diphenyl ether 21 parts were added and the mixt. was cooled to 80.degree., poured into molds, and cooled to 20.degree.. (78-70-6 LinaloolM623-91-6 Diethyl fumarate )(5392-40-5 citral)(101-84-8 diphenyl ether) The product was a hollow cylinder, 10 cm high, 4.5 cm in outer and 2.0 cm in inner diam., weighing 100 g. This product removed unpleasant odors from a 33 L space within 2 min even after 3 mo of use. 300-92-5? 78-70-6? 623-91-6; 5392-40-5? 101-84-8? 89-83-8? 98-55-5? 98-86-2? 104-54-1? 105-85-1? 106-22-9? 106-23-0J 106-24-1? 122-78-1? 470-82-6? 515-69-5? 543-39-5? 588-67-0? 624-49-7,* 639-99-6; 1604-34-8J 4602-84-0? 7212-44-4? 7631-86-9? 8000-41-7? 9002-86-2? 9002-88-4? 11050-62-7; 12001-31-9? 24937-78-8? 42238-15-3 7808 CA/089/017840J Kopec RJ ? Washington WD ? Midkiff CR Jr Bur. Alcohol* Tob. Firearms* U. S. Treas. Dep.* Washington* D. C. Forensic applications of sapphire cell-infrared spectroscopy: companion to the diamond cell in explosive and leg wire identificat ion J. Forensic Sci.? VOL 23* ISS 1* 1978*57-65 ENG JFSCA CBAC COPYRIGHT: CHEM ABS IR spectra of samples contained In a sapphire cell* which allowed examn. of the 4000 to 1600 cm-1 region, allowed identification of 4 types of blasting cap leg wire insulation. Nylon and Teflon could be distinguished from RNW 1867 n 00009159 PVC PAGE 103 the above 4 insulations but could not be discriminated in the sapphire cell (they could be discriminated in a diamond cell!. (9002-84-0 Teflon) Four explosives and an explosive mixt. were discriminated on the basis of the sapphire cell spectra alone. RN - 9002-84-0; 78-11-5; 118-96-7; 121-82-45 2691-41-0; 9002-86-2; 9002-88-45 9003-53-65 9004-57-35 9010-79-1 EM - 7808 249 SI AU AD TI SO AB RN EM CA/089/011734F Kataoka A ; Takahashi T ; Yagi K 5 Matsuda K 5 Kamota M Japan Chelate ion-exchange resin for heavy metal absorption Japan. Kokai PATENT NO. 78 33988 03/30/78 (Sumitomo Chemical Co., Ltd. ) CBAC COPYRIGHT: CHEM ABS Heavy metals, e.g. Cd> were removed from water by an ion exchange resin, prepd. by treating a halogen contg. resin, e.g. PVC, with an amine and then with C1CH2C02H. (9002-86-2 PVC)(79-11-8 Chloroacetic acid) Thus, 62 parts of emulsion-polymd. PVC were reacted with 120 parts ethylenediamine and 7.1 parts C1CH2C02H to give an ion exchanger (I). (107-15-3 Ethylenediamine) Water contg. 0.1 g/L of CdCl2 and 39.3 g/L of NaCl and having pH 6 when shaken with 0.5 parts I for 1 h the Cd content was reduced to 2.3 ppm. as compared to 51 ppm with Uniselec UR-10. 9002-86-25 79-11-85 107-15-35 7440-43-9 7807 250 SI - CA/089/012198W AU - Asai M 5 Tsuda K ; Oka H AD - Japan TI - Prevention of elution of additives from PVC SO - Japan. Kokai PATENT NO. 78 08669 01/26/78 (Agency of Industrial Sciences and Technology) AB - CBAC COPYRIGHT: CHEM ABS The surface of poly(vinyl chloride) is treated with inert gases (such as Ar) and gaseous org. silicates (such as triethylsilane chloromethyldimethylchlorosilane ) to prevent the leakage of additives from the polymer. (9002-86-2 Poly(vinyl chloride))(617-86-7 Triethylsilane )(1719-57-9 Chloromethyldimethylchlorosilane ) Poly(vinyl chloride) is a commonly used material for artificial organs and blood vessels, and the leakage of additives may have adverse effects in patients. Thus, sheets contg. poly(vinyl chloride) 100, and the additives dioctyl phthalate 5.0, tin di-Bu dilaurate 2.0, calcium stearate 0.4 and polyethylene glycol monostearate 1.0 part were treated with Ar and chloromethyldimethylchlorosilane. Treated sheets were immersed in blood plasma at 37.degree, for 22 h. Only <0.01 mg plasticisers/50 mL plasma were detected by gas chromatog. RN - 9002-86-25 617-86-7! 1719-57-9 DTG - BLOOD CONCENTRATIONS EM - 7807 RNW I868 00009160 PVC PAGE 109 251 SI AU AD TI SO LA CD AB RN EM CA/089/012131U Figge K Ges. Naturwissenschaftl.-Tech. Dienste m.b.H., Hamburg, Ger. Migration of low-molecular-weight constituents of packaging materials - radioanalytical methods of determination and results Acta Pharm. Technol.; VOL 29, ISS 1, 1978,97-90 GER APTED CBAC COPYRIGHT: CHEM ABS The migration of Irgastab 17 MOK Cdi-n-octyltin bis(2-ethylhexyl) thioglycolate](I) BHT, Irganox 1076 C3-C3,5-di(tert-butyl)-9-hydroxyphenyl]propionic acid stearyl ester] and stearyl ale. from rigid PVC and low d. polyethylene films into olive oil, a fat simulant, H20, dil. AcOH, EtOH and 7 pharmaceutical prepns. was followed by labeling the additives and measuring the radioactivity transferred into the example food and drug products. (15571-58-1 Irgastab 17 MOK)(128-37-0 BHT)(2082-79-3 Irganox 1076)(112-92-5 Stearyl alcohol)(9002-86-2 PVC)(9002-88-9 Polyethylene) Methods for measurement of the sp. migrate (1-sided exposure of packaging) and esp. for detn. of the global migrate (2-sided exposure of packaging) in a fat simulant are described. I showed an esp. high degree of migration from high-d. polyethylene film into solid drug prepns. 15571-58-15 128-37-05 2082-79-35 112-92-55 9002-86-25 9002-88-95 117-81-7 7807 252 SI - CA/088/189662P AU - Kydonieus AF 5 Hyman S AD - USA TI - Control of agricultural pests using particles with retarded release SO - Ger. Offen. PATENT NO. 2790997 03/16/78 (Herculite Protective Fabrics Corp.) AB - CBAC COPYRIGHT: CHEM ABS Slow-release insecticide formulations are prepd. using laminated PVC films. (9002-86-2 PVC) The insecticide is incorporated into an 0.5 mm inner PVC plastisol layer and covered by 0.1 mm PVC films on each side. Thus, diazinon formulated as above controlled Diabrotica balteata for 15 wk, whereas usual diazinon granules had a much shorter activity. (333-91-5 Diazinon) RN - 9002-86-25 333-91-55 298-02-25 2921-88-2 EM - 7807 253 SI - CA/088/165305H AU - Anderson JE 5 Kreith F AD - Dep. Biol., Idaho State Univ. Pocatello, Idaho TI - Effects of film-forming and silicone antitranspirants on four herbaceous plant species SO - Plant Soil; VOL 99, ISS 1, 1978,161-73 LA - ENG CD - PLSOA RNW 1869 00009161 PVC PAGE 105 AB - CBAC COPYRIGHT: CHEM ABS In the lab., the silicone antitranspirants Mobileaf, Wilt Pruf, XEF-4-3561, and Mobi leaf-XEF-4-3561 mixt. decreased transpi rat i on and photosynthesis in Achillea millefolium, Agropyron cristatum, Elymus canadensi and Melilotus officinalis. (11130-61-3 Mobileaf )(9002-86-2 Wilt Pruf)(65997-73-1 Mobileaf-XEF-4-3561 mixt.) The effect lasted 10-14 days. The water-use efficiency (Downes, R. W. 1969) was slightly improved by Mobileaf in A. millefolium for 6 days, and in A. cristatum and M. officinalis for 2-3 days, but was not altered by any treatment in E. canadensis. RN - 11130-61-35 9002-86-25 65997-73-1 EM - 7806 254 SI - CA/089/141337Q AU - Hilado CJ ; Cumming HJ AD - Fire Saf. Cent., Univ. San Francisco, San Francisco, Calif. TI - Relative toxicity of pyrolysis gases from materials: effects of chemical composition and test conditions SO - Fire Mater.; VOL 2, ISS 2, 1978,68-79 LA - ENG CD - FMATD AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Relative toxicity data are given under pyrolysis conditions (conditions to simulate different types of fire situations) on 270 materials (fabrics , plastics, building materials, etc.) , and the effects of chem. compn. are discussed for some materials. Wool, silk and polyester fabrics exhibited the shortest times to incapacitation and death in mice. Changing from a rising temp, to a fixed temp program, and from no forced air flow to 1 L/min air flow, generally resulted in shorter times to incapacitation and death. The relative rankings of materials tended to remain the same in spite of changes in test conditions and methods; however , some reversals in rankinqs were obsd. RN - 108-80-5; 9002-86-2J 9002-88-4; 9003-07-0; 9003-53-6; 9003-56-9; 9008-66-6; 9010-98-4*, 9011-14-7; 9016-75-5; 9041-80-9; 14308-60-7; 24936-68-35 24937-79-9; 24931-14-45 25037-45-0; 25038-54-45 27681-98-75 27754-75-25 28554-73-65 28760-06-7; 32131-17-25 62238-79-3 EM - 8007 255 SI - CA/089/124042X AU - Kaisina OV 5 Krasnikova II ; Gadalina ID AD - Inst. Gig. DeteiPodrostkov, Moscow, USSR TI - Features of the age-related sensitivity of white rats to the effects of chemical factors SO - Gig. Sanit.; ISS 7, 1978,59-62 LA - RUS CD - GISAA AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Continuous exposure of rats from birth to PE 246, wood-chip tiles (MF 17), or PVC linoleum plasticised with poly(di-Bu maleate) inhibited growth and development and impaired normal body functions (respiration. RNW 1870 00009162 PVC PAGE 106 adrenal gland, liver, nervous system, heart). (26588-55-6 PE 296)(9011-05-6 MF 17)(9002-86-2 PVC)(29019-72-0 poly(di-Bu maleate)) The rats were most sensitive to the volatile products of these prepns. at 1-3 wk of age. The volatile substances migrating from PE 296 decreased with time (styrene was present in the air at 0.06-1.5 mg/m3 during the 1st 10 days, at 0.01 mg/m3 after 30 days, and at 0.005 mg/m3 after 60 days). (100-92-5 Styrene) RN - 26588-55-6J 9011-05-6; 9002-86-2; 29019-72-0; 100-92-5 EH - 8007 256 SI - CA/089/080208Z AU - Engelbart RH ; Bartone FF ; Gardner P ; Hutson J AD - Coll. Hed., Univ. Nebraska, Omaha, Nebr. TI - Urethral reaction to catheter materials in dogs SO - Invest. Urol.; VOL 16, ISS 1, 1978,55-6 LA - ENG CD - INURA AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM The reaction of the urethra of dogs to 2 new polyurethane polymers was compared with those produced by materials currently used in the manuf. of urethral catheters. The comparison included silicone, latex rubber, tetrafluoroethylene polymer (Teflon) coated latex, and poly(vinyl chloride). (9002-86-2 Poly(vinyl chloride)) There were no significant differences in the reaction of the urethra to the various materials. The study was carried out in the absence of bacterial contamination. RN - 9002-86-2; 9002-89-0 EM - 8007 257 SI - CA/089/079599E AU - Edgerley PG ; Pettett K AD - Plast. Div. ICI Ltd., Welwyn Garden City/Hertfordshire, Engl. TI - The effect of pyrolysis and combustion temperatures on smoke density SO - Fire Mater.; VOL 2, ISS 1, 1978,11-17 LA - ENG CD - FMATD AB - CBAC COPYRIGHT: CHEM ABS ADDENDUM Use of the small-scale smoke-testing app. now proposed as a std. in France (under the designation NF-T51-073) showed that, although (like other small-scale fire tests) it is not claimed to be relevant to real fire situations, varying the temp, over a wide range (200-900.degree. ) gives plots of sp. optical d. for various materials which broadly correspond to general experience and certain smoke tests! the plots show that nearly all flammable substances give a rapid rise in smoke opacity in the 350-500.degree, region, above which there is always a step drop, sometimes to smoke densities of virtually zero. Some for 1 or 2 synthetic materials showing a very low smoke d. throughout, there is no general trend obsd. in comparing natural and synthetic substances. 0 depletion, which often occurs in a real fire situation, has an effect, but not a major one, on smoke d.J RNW 1871 00009163 PVC PAGE 107 however, in some cases reheating of the smoke can have a dramatic effect, probably because of further pyrolysis and combustion. RN - 108-80-55 9002-86-25 9002-88-4; 9003-07-05 9003-53-65 9003-56-95 9004-34-65 9011-05-65 9011-14-75 32131-17-2 EM - 8007 258 SI - CA/090/127048K AU - Warren JH 5 Hootman HE A0 - Savannah River Lab., E. I. du Pont de Nemours and Co., Aiken, S. C. TI - Operation of a pilot alpha waste incinerator at the Savannah River Laboratory SO - Report; ISS DP-MS-78-38, CONF-780654-1,, 1978,31 pp. LA - ENG CD - D3REP AB - CBAC COPYRIGHT: CHEM ABS The pilot incinerator was built and operated successfully at design throughput with simulated wastes. Operating ranges of stable incinerator performance were defined as a function of air and waste feed rates for different materials and mixts. of materials. The complete range of waste materials can be burned without producing tar or soot. The limiting capacity of this incinerator is 0.5 kg/h if all latex rubber is charged or approx. 0.84 kg/h with a waste mixt. Offgas particulate sampling prior to scrubbing indicates negligible solid carryover. The only material which may present off-gas cleaning problems is a light white smoke which accompanies the burning of PVC. (9002-86-2 PVC) RN - 9002-86-2 EM - 7904 259 SI - CA/090/126999J AU - Van de Voorde N AD - SCK/Cent. Etude Energ. Nucl. CEN, Mol, Belg. TI - Treatment of alpha radioactive wastes from CEN-SCK from Mol, Belgi urn SO - Proc. Tech. Semin. Treat., Cond. Storage Solid Alpha-Bear. Waste Cladding Hulls; 1978,221-38 LA - FRE CD - 39LYA AB - CBAC COPYRIGHT: CHEM ABS Radioactive residues are compacted, cut, and encapsulated in hot bitumen. Residues are also incinerated with various reactor wastes such as glass, metal, rubber, etc. to an insol. granular mass. An incinerator for low Pu level wastes has a capacity of 150 kg/h, and another, for >2 g Pu/L> has a capacity of 10 kg/h. Pu is recovered from the latter unit. Waste is packed in 25 L metallic boxes with sealed covers, placed in plastic bags and disposed in 220 L drums which are then sealed in PVC. Small amts, of fly ash were produced during operation of the large incinerator for 1500 h. RN - 7440-07-55 9002-86-2 EM - 7904 RNW 1872 00009164 PVC PAGE 108 260 SI - CA/090/126755B AU - Staschik G ; Winter K AD - Ger. TI - Exhaust air purification with adsorption 50 - Oberflaeche JOT; VOL 18, ISS 12, 1978,775-7 LA - GER CD - OBJTD AB - CBAC COPYRIGHT: CHEM ABS The Adsox process for offgas purifn. consists of adsorption of impurities on active C, desorption in a hot, inert gas stream, and incineration of the coned, pollutants and/or recovery of useful components. The use of the process in the purifn. of offgas from a dryer for PVC flooring and from an automobile spray painting plant with solvent recovery is discussed. (9002-86-2 PVC) RN - 9002-86-2; 7440-44-0 EM - 7904 261 51 - CA/090/126557P AU - Kotlyar IB ; Seregina AI AD - USSR TI - Protection of the environment from vinyl chloride contamination in poly(vinyl chloride) production 50 - Plast. Massy*, ISS 10, 1978,58-61 LA - RUS CD - PLMSA AB - CBAC COPYRIGHT: CHEM ABS A review with 99 refs. Review vinyl chloride environment protection PVC manuf environment protection review RN - 75-01-4; 9002-86-2 EM - 7904 262 51 - CA/090/109085R AU - Kohl EG ; Pruggmeyer D AD - Battelle-Inst. e. V., Frankfurt/Main, Ger. TI - Air pollution caused by vinyl chloride from PVC factories SO - Ber. - Umweltbundesamt (Ger.); ISS 5, 1978,23 pp. LA - GER CD - BEUMD AB - CBAC COPYRIGHT: CHEM ABS The vinyl chloride (I) content of German PVC samples (emulsion, suspension, bulk) was substantially <10 ppm, except for 3 samples from the same firm, in which I concns. were 44, 81, and 82 ppm. (75-01-4 Vinyl chlorideH9002-86-2 PVC) In foreign PVC, I concns. were generally <10 ppm, but 20/ of the samples contained substantially >100 ppm I. In 67 finished products, I concns. were <0.1 ppm for 50 and <5 ppm for 5, with the exception of insulating panels, of which 9 contained 20-50 ppm I and 3 contained 109-973 ppm I. The concn, and emission of I for a given sample of PVC during various stages of processing are discussed, and a simple method for monitoring the I content, particularly at >10 ppm in PVC raw materials, is described. RN - 75-01-4; 9002-86-2 RNW 1873 00009165 PVC PAGE 109 EM -- 7904 263 SI - CA/090/127568E AD - Italy TI -- Biologically compatible porous fibers and materials for encasing biological materials SO - Neth. Appl. PATENT NO. 78 03101 09/26/78 (SNAM Progetti S.p.A.) AB - CBAC COPYRIGHT: CHEM ABS Synthetic fibers and polymer films are rendered suitable for use in contact with blood by formulation with anticoagulants. For example. 10 g cellulose triacetate was dissolved in 133 g CH2C12. the soln. was cooled to 0.degree.. 1 g 4>5-diphenyl-2-Cbis(2-hydroxyethyl)amino]oxazole (I) was added followed by 20 g 30/ aq. glycerol, and the mixt. was emulsified by stirring and spun into fibers into a PhMe bath. (9012-09-3 Cellulose triacetate )(18471-20-0 4,5-Diphenyl-2-bis(2-hydroxyethyl)aminooxazole) An i.v. catheter was coated with a film of cellulose triacetate contg. 10/ I and wrapped in the I-contg. fiber. When this catheter was implanted in the femoral vein of a dog for 90 days, no signs of fibrinogenesis platelet aggregation, or thrombosis were obsd. RN - 9012-09-35 18471-20-0*. 9002-86-2J 9003-22-9; 69621-79-0 DTG - BLOOD CONCENTRATIONS ; HEMATOLOGY EM -- 7904 264 SI CA/090/12751IF AU - Chaigneau M ; Chastaqnier M AD - Lab. Gas, Univ. Rene Descartes. Paris, Fr. TI - Absorption and desorption of fluoroalkanes by plastics and elastomers SO - Sci. Tech. Pharm.; VOL 7, ISS 8, 1978,439-43 LA - FRE CD STQPA AB -- CBAC COPYRIGHT: CHEM ABS Desorption of dichlorodifluoromethane from plastics and elastomers (following satn. ) was rapid and total regardless of the nature of the material involved. (75-71-8 Dichlorodifluoromethane ) Desorption of trichlorofluoromethane varied with the nature of the material and was so slow from plasticized PVC, polypropylene, and polycarbonate that it was not terminated even after a 4-6-mo aeration. (75-69-4 Trichlorofluoromethane)(9002-86-2 PVC)(9003-07-0 Polypropylene) Sterilization with a mixt. contg. 44.5/ of each fluoroalkane and 11/ ethylene oxide resulted in varied rates of desorption. (75-21-8 Ethylene oxide) In some cases, desorption appeared to have stopped while the wt. of the samples had not returned to its original value, evidently indicating the formation of stable complexes. Desorption of fluoroalkanes after sterilization is important in view of the possible toxic action of these compds. RN - 75-71-85 75-69-4; 9002-86-2; 9003-07-0; 75-21-8; 9002-84-0J 9002-88-45 9003-56-9; 24936-68-35 24937-78-85 25587-80-8 EM - 7904 RNW "*874 00009166 PVC PAGE 110 265 SI - CA/090/091844A AU - Chovanec M ; KosiK M AO - Chemickotechnol. Fak., Slov. Vys. Sk. Tech., Bratislava, Czech. TI - Utilization of solid wastes by pyrolysis and combustion SO - Chem. Prum.J VOL 26, ISS 7, 1978,360-3 LA - SLO CD - CHPUA AB - CBAC COPYRIGHT: CHEM ABS Toxicity of products from the pyrolysis of polymers, e.g. polyfMe methacrylate), polyethylene, polypropylene, polystyrene, PVC, poly(vinylidene chloride), Teflon, epoxy resins, and polyamides is discussed. (9011-14-7 Poly(methyl methacrylate))(9002-88-4 Polyethylene)(9003-07-0 Polypropylene)(9003-53-6 Polys tyrene)(9002-86-2 PVC)(9002-85-1 Poly(vinylidene chloride ))(9002-84-0 Teflon) RN - 9011-14-7J 9002-88-4; 9003-07-0; 9003-53-6*, 9002-86-2; 9002-85-1; 9002-84-0 EM - 7903 266 SI - CA/090/091644K AU - Rasbash DJ ; Phillips RP AO - Dep. Fire Saf. Eng., Univ. Edinburgh, Edinburgh, Scot. TI - Quantification of smoke produced at fires. Test methods for smoke and methods of expressing smoke evolution SO - Fire Mater.; VOL 2, ISS 3, 1978,102-9 LA - ENG CD - FMATD AB - CBAC COPYRIGHT: CHEM ABS The smoke producing properties of fiber insulating board, chipboard, hardboard, plywood, paper, PVC, ABS polymer, polyurethane foam, and plasterboard. (9002-86-2 PVC)(9003-56-9 ABS polymer) The smoke potential of (Do) of these materials is expressed in terms of ob m3/g where 1 ob = ldB light attenuation/ m3/g of light path. Methods available for measuring smoke from burning materials are reviewed. Methods which allow smoke to become dild. and to accumulate gave reproducible results. RN - 9002-86-25 9003-56-9 EM - 7903 267 SI - CA/090/076013K AU - Sudduth JR ; Keyworth DA AD - USA TI - Purification of gas streams SO - U.S. PATENT NO. 4104146 08/01/78 (Tenneco Chemicals, Inc.) AB - CBAC COPYRIGHT: CHEM ABS The gas stream, contg. 10-1000 ppm vinyl chloride (I) from heating of a polymn. slurry, is passed at specific rates through a silent elec, discharge zone in an 03-generating app. to destroy .gtoreq.95X of the I content and result in a stream contg. .ltoreq.10 ppm I. (75-01-4 Vinyl chloride) Thus, when an air stream (contg. 282 ppm I) was passed at 0.33 L/min through a silent elec, discharge zone in an ozonator, 99.3/ of the I content was destroyed 1 min after emergence from the ozonator (the I content was further reduced by RNW 1875 00009167 PVC PAGE 111 reaction with 03 formed in the ozonator). RN - 75-01-4? 9002-86-25 10028-15-6 EM - 7903 268 SI - CA/090/075932X AU - Mcrikawa T AD - Fire Def. Agency* Minist. Home Aff. Mi taka* Japan TI - Evolution of soot and polycylic aromatic hydrocarbons in combustion 50 - J. Combust. Toxicol.; VOL 5, ISS 4, 1978,349-60 LA - ENG CD - JCTOD AB - CBAC COPYRIGHT: CHEM ABS When polyethylene (I), polystyrene (II), PVC, polyCMe methacrylate ), polypropylene, polyacrylonitrile (III), or cellulose were pyrolyzed* the evolution of both soot and benzoCal pyrene (IV) increased with increasing temp. (9002-88-4 Polyethylene)(9003-53-6 Polystyrene )(9002-86-2 PVC)(9011-14-7 Poly(methyl methacrylate))(9003-07-0 Polvpropylene)(25014-41-9 Polyacrylonitrile)(9004-34-6 CelluloseM50-32-8 BenzoCa] pyrene) The increase of air supply did not decrease soot evolution, unless the air supply rate was very high. A large amt. of soot was produced from burning PVC, II, and III. Soot from I contained 3-4 times more IV than I soot. No direct relation existed between soot and IV prodn. RN - 9002-88-4; 9003-53-6; 9002-86-2; 9011-14-7? 9003-07-0? 25014-41-9J 9004-34-6; 50-32-8 EM - 7903 269 51 - CA/090/060450Q AU - Khan ZS J Hughes TW AD - Monsanto Res. Corp., Dayton, Ohio TI - Source assessment: polyvinyl chloride SO - Report; ISS EPA/600/2-78/0041, MRC-DA-700? Order No. PB-283395,, 1978,107 pp. LA - ENG CD - D8REP AB - CBAC COPYRIGHT: CHEM ABS This report summarizes data on air emissions from the PVC industry. (9002-86-2 PVC) PVC is manufd. by 20 companies at 35 plants. Each plant uses .gtoreq.l of 4 possible polvmn. processes: (1) suspension polymn.: (2) emulsion polymn.: (3) bulk polymn.: and (4) soln. polymn. A representative PVC plant was defined to assess the severity of emissions from this industry. Source severity, defined as the ratio of the time-averaged max. ground level concn. of a pollutant to a hazard potential, was calcd. for 16 chem. species emitted from a representative plant. The 2 largest severities were 970 for vinyl chloride and 1.9 for PVC. (75-01-4 Vinyl chloride) Control technol. for hydrocarbons includes adsorption, absorption, refrigeration, incineration, stripping, purging of equipment with inert gas or water, and control of fugitive emissions. RN - 9002-86-2J 75-01-4 RNW 1876 00009168 PVC PAGE 112 EM - 7903 270 SI - CA/090/092368K AU - Sugitachi A ; Takagi K AO - Dep. Surg., Osaka Natl. Hosp.* Osaka, Japan TI - Antithrombogenicity of immobilized urokinase - clinical application SO - Int. J. Artif. Organs; VOL 1, ISS 2, 1978,88-92 LA - ENG CD - IJAOD AB - CBAC COPYRIGHT! CHEM ABS Four different urokinase-immobilized polymer substances* i.e., nylon-6* polytvinyl chloride), silicone rubber* and polyester, had plasminogen-activating activity, in vitro and in vivo. (9039-53-6 Urokinase) The in vitro thrombus formation time (TFT) of the enzyme-immobilized nylon tubes was >95 min, which was the longest time for all materials tested. The TFT of the silicone rubber enzyme tubes was much longer than that of the untreated ones. Clin, use of the urokinase-immobilized nylon tubes showed excellent antithrombogenicity. RN - 9039-53-65 9002-86-2; 25038-59-4 EM - 7903 271 SI - CA/090/061209E AU - Wang PY J Llewellyn-Thomas E AO - Inst. Biomed. Eng., Univ. Toronto, Toronto, Ont. TI - Adhesion of synthetic organic polymer to soft tissue. III. Effect of some monofunctional compounds SO - J. Biomed. Mater. Res.; VOL 12, ISS 6, 1978,831-41 LA - ENG CD - JBMRB AB - CBAC COPYRIGHT: CHEM ABS Several acyl or aroyl anhydrides, chlorides, and a triaryl chloroalkane improved to varying degrees the adhesion of fast-setting polyurethane prepolymer to tissue. The isomers of methylphenyl isocyanate and chlorobenzoyl chloride gave the same extent of improvement in adhesion of the prepolymer as the parent compd. without the Me or Cl substituents. Among all the reactive monofunctional compds. studied, benzoyl chloride and its chlorobenzoyl derivs. were the most effective. (98-88-4 Benzoyl chloride) When primed on tissue or admixed with ltoreq.3X additive in some prepolymer prepns., these aroyl chlorides promoted the adhesion of many ordinary adhesives to internal tissue. The effectiveness was attributed to the modification of hydrophilic tissue surface by the hydrophobic benzoyl group attached to tissue after reaction. The prosthetic benzoyl group makes the tissue/polymer interface more compatible and the compatibility results in good adhesion. RN - 98-88-4*, 75-36-5J 76-83-5; 93-97-05 98-59-9J 103-71-95 108-24-75 111-64-85 614-68-65 618-46-25 621-29-4; 622-58-2} 9002-86-2} 9003-53-6} 9011-14-7 EM - 7903 RNW 1877 00009169 PVC PAGE 113 272 SI AU AD TI SO LA CD AB RN EM 273 SI AU AU AD TI SO LA CD AB CA/090/049449A Bochkareva GG 5 Ovchinnikov YV Kurganova LN ; Beirekhova VA USSR Study of the fungal resistance of plasticised polytvinyl chloride) Biopovreshdeniya Mater. Zashch. Nikh; 1978*151-3 RUS 39NJA CBAC COPYRIGHT: CHEM ABS Penicillium funiculosum decompd. the protective dioctyl adipate coating supplied as the only C source* forming fumaric acid. (123-79-5 Dioctyl adipate )(110-17-8 Fumaric acid) The fungus also decompd. dioctyl sebacinate, but not dioctyl phthalate which was resistant even in the presence of sugar. (2432-87-3 Dioctyl sebacinate)(117-84-0 Dioctyl phthalate) The availability of sugar enhanced formation of enzymes by fungi and stimulated decompn. of PVC foils. (9002-86-2 PVC) The destruction of the protective coating by mold decreased the frost resistance of the foils. Only the foils contg. dioctyl phthalate retained their frost resistance after exposure to mold. Opaque clear PVC foils were protected from mold by captan, phthalan, 0.5-1/ pentachloronitrobenzene (I)* or 1-2/ cetylpyridinium chloride (II), while transparent foils were protected by 0.1-0.3/ bis(tributyltin oxide) or tributyltin acetate. (133-06-2 Captan )(496-14-0 Phthalan)(82-68-8 Pentachloronitrobenzene)(123-03-5 Cetylpyridinium chloride)(56-35-9 Bis(tributyltin oxide))(56-36-0 Tributyltin acetate) 123-79-5; 110-17-8J 2432-87-3; 117-84-0J 9002-86-2; 133-06-2; 496-14-05 82-68-85 123-03-55 56-35-9; 56-36-0 7903 CA/090/049226A Anderson RC 5 Dierdorf J ; Stock MF ; Matijak M 5 Sawin R Alarie Y Grad. Sch. Public Health, Univ. Pittsburgh* Pittsburgh, Pa. Use of experimental materials to assess toxicological tests for rating polymeric materials under thermal stress Fire Mater.; VOL 2, ISS 3, 1978,136-40 ENG FMATD CBAC COPYRIGHT: CHEM ABS In order to evaluate the performance of the indices of toxicity which have been developed, thermal decompn. products of 3 polymers, poly(vinyl chloride),polychloroprene, and polycarbonate were tested for sensory Irritation, physiol, stress induction, and acute lethality. (9002-86-2 Poly(vinyl chloride ))(9010-98-4 Poly<chloroprene)) Each polymer was contrasted with the same polymer contg. 5/ Zn ferrocyanide. (14883-46-6 Zinc ferrocyanide) The most irritating and the most stressful pyrolysis products were those from poly(vinyl chloride). The least irritation and stress were assocd. with polycarbonate decompn. products. The acute lethality for polychloroprene was higher than that of the other 2 polymers by a factor of 4. The RNW 1878 # 00009170 # PVC PAGE 114 addn. of Zn ferrocyanide had a variable effect* depending on the polymer and the index of toxicity being evaluated. Sensory irritation was lessened by the presence of Zn ferrocyanide in polycarbonate. The sample wt. required to cause death of 502 of the animals was reduced for the 2 HCl-generating polymers* poly(vinyl chloride) and polychloroprene. However, the acute lethality of polycarbonate did not change with addn. of Zn ferrocyanide. By itself, Zn ferrocyanide decompd. very slowly during heating, caused almost no irritation or stress, and no deaths. RN - 9002-86-2J 9010-98-4; 14883-46-6 DTG - LETHAL CONCENTRATIONS EM - 7903 274 SI AU AD TI SO LA CD AB RN EM CA/090/043356W Trubitskaya GP ; Boiko AN ; Komarova RF J Cherednichenko NP Med. Inst., Rostov-on-Don, USSR Effect of a low-intensity chemical factor on children under conditions of the use of polymeric materials in construction Pediatriya (Moscow); ISS 8, 1978,26-9 RUS PEDTA CBAC COPYRIGHT: CHEM ABS The study was made, in winter, on 3 groups of children: 2-3 yr> 4-5 yr, and 6-7 yr of age. The construction materials to which children were exposed were: linoleum, PVC linoleum, wood fiber and wood shaving boards, and putty. (9002-86-2 PVC) These materials cause chem. air pollution. HCHO, phthalates, and NH3, were detd. in the air. (50-00-0 Formaldehyde) The blood of the subjects was analysed, and changes in the leukocyte counts are described. Children exposed to the construction materials displayed high susceptibility to exudative diathesis, angina, and respiratory distress. 9002-86-2; 50-00-0; 88-99-3; 7664-41-7 7902 275 SI - CA/090/043308G AU - Anderson HA ; Snyder J ; Lewinson T ; Woo C J Lilis R AU - Selikoff IJ AD - Mt. SinaiSch. Med., City l*-iv. New York, New York, N. Y. TI - Levels ofCEA among vinyl chloride andpoly(vinyl chloride )-exposed workers SO - Cancer (Philadelphia); VOL 42, ISS 3, Suppl., 1978,1560-7 LA - ENG CD - CANCA AB - CBAC COPYRIGHT: CHEM ABS In 1974, vinyl chloride (VC) exposed workers had an increased risk of malignant disease (hemangiosarcoma of the liver). (75-01-4 Vinyl chloride) Thus 1147 workers exposed to VC monomer in 3 VC/poly(vinyl chloride) (PVC) . plants and 269 workers from a PVC extrusion plant manufg. PVC textile product, exposed to much lower concns. of VC were examd. (9002-86-2 Poly(vinyl chloride)) Included among the comprehensive clin. and lab. studies conducted was the CEA RNW 1879 II 'll 00009171 PVC PAGE 115 (carcinoembryonic antigen) titer. The investigation demonstrated that occupational exposures in VC/PVC plants can cause elevations in the CEA titers of otherwise healthy individuals. Prospective follow-up is necessary before conclusions can be drawn concerning the usefulness of the CEA titer as a predictive indicator of possible increased risk. RN - 75-01-4J 9002-86-2 EH - 7902 276 SI - CA/090/028976E AU - McRea JC ; Kim SW AD - Dep. Pharm., Univ. Utah, Salt Lake City, Utah TI - Characterisation of controlled release of prostaglandin from polymer matrices for thrombus prevention SO - Trans., Am. Soc. Artif. Intern. Organsj VOL 24,, 1978,746-52 LA - ENG CD - TAIOA AB - CBAC COPYRIGHT: CHEM ABS Av. plots of total release of active agent (PGE1, cAMP, and its ammonium salt) from each combination of polymer (PVC and Biomer )/active agent vs. timel/2 showed a linear relation in .ltoreq.45 days. (745-65-3 PGE1)(60-92-4 CAMP)(9002-86-2 PVC)(52503-89-6 Biomer) Plots of two systems, PVC/cAMP acid and Biomer/PGEl had significantly different slopes during the 1st 24 h and 48 h, resp.* indicating distinct diffusion mechanisms occurring at early time release as opposed to the later steady-state conditions. For the same systems rates of release were different. However, all the systems eventually achieved steady-state-release conditions of approx, the same order of magnitude. ADP-induced platelet aggregation studies comparing the relative potency of PGE1, PGD2, and PGI2 showed PGD2 had inhibitory effect twice as great as PGE1 in human platelet-rich plasma (PRP). (58-64-0 ADP)(41598-07-6 PGD2M35121-78-9 PGI2) However, in bovine PRP, PGD2 showed similar and PGE1 .apprx.2 times more inhibition compared to that in human PRP. PGI2 had the greatest anti aggregation effect of all in both bovine and human PRP. PRP exposed to polymer-PGEl system demonstrated 82'/. inhibition of ADP-induced aggregation compared to control unexposed PRP. Prostaglandins, combined with currently available polymers, could be utilised for the prevention of thrombus formation. RN - 745-65-3J 60-92-4? 68407-13-65 9002-86-25 52503-89-65 58-64-05 41598-07-65 35121-78-9 EM - 7902 277 SI - CA/090/017176T AU - Bucci TJ 5 Hilado CJ 5 Marcussen WH 5 Furst A AD - Fire Saf. Cent., Univ. San Francisco, San Francisco, Calif. TI - Two-week studies of survivors from exposures to pyrolysis gases SO - J. Combust. Toxicol.5 VOL 5, ISS 3, 1978,278-89 LA - ENG CD - JCTOD AB - CBAC COPYRIGHT: CHEM ABS Male mice which had survived near-lethal concns. of the pyrolysis gases from a variety of RNW 1880 00009172 PVC PAGE 116 polymeric materials were sacrificed 2 wk after exposure and necropsied* and the lungs* heart* liver* kidneys* and spleen were subjected to patholoq. examn. The polymeric materials were polyethylene* acrylonitrile-butadiene-styrene copolymer, polycarbonate* polyiaryl sulfone), poly(ether sulfone), poly(phenylene sulfide)* modified poly(phenylene oxide), chlorinated poly(vinyl chloride), poly(vinylidene fluoride), and fluorene polycarbonate. Microscopic examn. of the tissues indicated that there was no significant effect on the liver, kidney, and spleen in animals 2 wk after exposure to the pyrolysis gases from these materials. It was not possible to detn. whether the pyrolysis gases had a significant effect on the lungs of the exposed animals because of a high level of pathol. in both control and exposed animals. Detailed patholog. examn. of surviving animals after 2 wk does not appear to be cost-effective because after that time interval any acute injuries would be in the healing phase and would be difficult to distinguish from chronic preexisting pathol. Patholog. examn. after 24 or 48 h may be more cost-effective. RN - 9002-86-25 9002-88-45 9003-56-95 9041-80-95 24937-79-9 EM - 7902 278 SI - CA/090/017133B AU - HiladoCJ 5 Cumming HJ 5 Schneider JE 5 Solis AN 5 Furst A AD - Inst.Chem. Biol.*Univ. SanFrancisco* SanFrancisco, Calif. TI - ALC50 values for materials under pyrolysis conditions SO - Proc. West. Pharmacol. Soc.5 VOL 21** 1978*167-70 LA - ENG CD - PWPSA AB - CBAC COPYRIGHT: CHEM ABS Apparent lethal concn. values for 50'/. of the animals (ALC50) from 50 pyrolyzed materials ranged 8-240 mg/L. Materials such as wool* nylon, polyurethane had low ALC50 values* whereas synthetic resins* such as benzyl and fluorene polycarbonate showed high values after being cured. RN - 86-73-75 783-81-35 9002-86-25 9002-88-45 9003-56-95 9016-75-55 9041-80-95 24937-79-95 24981-14-45 25038-54-45 27100-33-05 31799-17-45 68675-82-1 DTG - LETHAL CONCENTRATIONS EM - 7902 279 SI - CA/090/043849J AU - Hirschhorn L AD - USA TI - Constructing porcelain-metal dental restorations SO - U.S. PATENT NO. 4107348 08/15/78 AB - CBAC COPYRIGHT: CHEM ABS An opaque coating consisting of an evaporable liq. of varying proportions of ale. and water and a small quantity of dissolved resinous binder for application directly to the exposed surfaces of base metal surfaces of individual prosthetic teeth was described. The use of the evaporable coating eliminates baking steps before the application of subsequent porcelain coating. E.g.* 3-5 parts poly(vinyi chloride) dispersion in 95-7 parts water or water-alc. were mixed RNW 1881 00009173 PVC PAGE 117 with known and opaque coatings in powd. frit form* applied to the metallic tooth surface by brush or aerosol dispenser* and air dried to give a tooth with the coating particles in position and ready for subsequent further particle coat or porcelain enamel coat. (9002-86-2 Polyfvinyl chloride)) RN - 9002-86-2 EM - 7902 280 SI AU AD TI SO LA CD AB RN EM CA/090/043777J Craig RG * Koran A i Yu R > Spencer J Sch. Dent.* Univ, Michigan, Ann Arbor, Mich. Color stability of elastomers for maxillofacial appliances J. Dent. Res.) VOL 57, ISS 9-10, 1978,866-71 ENG JDREA CBAC COPYRIGHT: CHEM ABS The color stability of poly(vinyl chloride) (PVC), polyurethane, and silicone polymers for maxillofacial applications was detd. after accelerated aging using reflectance spectrophotometry. (9002-86-2 Poly(vinyl chloride) The PVC material was slightly yellow after processing and became lighter in color after 100 h of aging. Variation in processing conditions resulted in variation in the intensity of the color. The polyurethane material increased slightly in intensity of color. The main problem with the polyurethane, however, was the severe degrdn. of mech. properties with aging in the UV light-water spray environment. All silicone elastomers showed good color stability. The selection of particular silicone would depend on the opacity desired, the phvs. and mech. properties of the polymer, and whether heat or chem.-initiated polymn. is desired. In general, all color changes obsd. were small. Other factors, such as the color stability of pigments and the stain resistance of the elastomers, may be partly responsible for the color degrdn. experienced in clin. situations. 9002-86-2 7902 281 SI AU AU AD TI SO LA CD AB CA/090/043773E Mori Y ; Nagaoka S 5 Masubuchi Y 5 Itoga M j Tanzawa H ; Kikuchi T Yamada Y ; Yonaha T Watanabe H J Idezuki Y Basic Res. Lab., Toray Ind. Inc., Kamakura, Japan The effect of released heparin from the heparinized hydrophilic polymer (HRSD) on the process of thrombus formation Trans., Am. Soc. Artif. Intern. Organs) VOL 24,, 1978,736-45 ENG TAIOA CBAC COPYRIGHT: CHEM ABS In clin. studies, heparinized RSD polymer-coated catheter showed excellent antithrombogenicity for ltoreq.85 days of implantation. (25085-46-5 RSD) Teflon, silastic, polyethylene, and poly(vinyl chloride) catheters showed poor antithrombogenicity. (9002-84-0 Teflon )(9002-88-4 Polyethylene )(9002-86-2 Poly(vinylchloride)) In addn. the scanning electron microscopic observations have shown that for the Teflon and the Silastic catheters, the thrombus formation RNW 1882 00009174 PVC PAGE 118 developed to Phase IV 3-25 days after their use. On the other hand* for the RSD catheter* the thrombus formation stayed in Phase I even after 60 days of clin. use while the no. of adherent platelets was min. RN - 25085-46-55 9002-84-0; 9002-88-4; 9002-86-2 EM - 7902 282 SI - CA/090/028492U AU - Sawa.be T AD - Japan TI - Waste gas treatment SO - Jpn. Kokai Tokkyo Koho PATENT NO. 78 90157 08/08/78 (Sumitomo Bakelite Co., Ltd. ) AB - CBAC COPYRIGHT: CHEM ABS Waste gas contg. vapor, org. solvent, tars, or other contaminants are heat exchanged and the contaminants are condensed. The solvent in the condensate is used to clean the heat exchanger The solvent is MeOH, Me2C0, or toluene. The process is used for treating waste gases from impregnating and drying of PVC. RN - 67-64-1; 9002-86-2 EM - 7902 283 SI - CA/090/028414V AU - Konietako H ; Elster I 5 Reill G AD - Inst. Arbeitsmed., Univ. Tuebingen, Tuebingen, Ger. TI - Lead loading-lead disease. An industrial hygiene study SO - Zentralbl. Arbeitsmed., Arbeitsschutz Prophyl.J VOL 28, ISS 6, 1978,163-5 LA - GER CD - ZAAPD AB - CBAC COPYRIGHT: CHEM ABS Pb in the blood of 7 workers at a mixing station using PVC varied between 120 and 160 initially and fell to an av. of 20 mug/100 mL after sanitary measures had been taken. (9002-86-2 PVC) RN - 9002-86-2? 7439-92-1 EM - 7902 284 SI - CA/090/028367G AU - Anon AD - Engl. TI - Removal of vinyl chloride monomer from gases SO - Res. Disci.; VOL 175,, 1978,5 LA - ENG CD - RSDSB AB - CBAC COPYRIGHT: CHEM ABS Vinyl chloride vapors were selectively removed from waste gases from PVC prodn. by treating the gas with ether acetates, diacetates, or triacetates. (75-01-4 Vinyl chloride)(9002-86-2 PVC) RN - 75-01-45 9002-86-2; 64-19-7 EM - 7902 RNW 1883 l\ 00009175 PVC PAGE 119 285 SI AU AD TI SO AB RN EM CA/090/011909N Sai to Y > Nogita S > Shimada K 5 Komuro T ; Haga T Japan Removal of heavy metals from dust and residual char Jpn. Kokal Tokkyo Koho PATENT NO. 78102272 09/06/78 (Agency of Industrial Sciences and Technology) CBAC COPYRIGHT: CHEM ABS Heavy metals-contg. dust and residual char from thermal decompn. of city garbage are immersed in acidic wastewaters produced by thermal decompn. of PVC-contg. waste. (9002-86-2 PVC) Heavy metals are effectively removed from the dust and residual char. 9002-86-2 7901 286 SI AU AD TI SO LA CD AB RN EM CA/089/220414R Hi rose S 5 Shimizu A > Kajiuchi T Cent. Res. Inst., Mitsubishi Petrochem. Co. Japan Decline in filtration rate of membrane separation Misu Shori GijutsuJ VOL 19, ISS 7, 1978,631-6 JPN MSYGA CBAC COPYRIGHT: CHEM ABS PVC membrane was used for treatment of oil emulsion. (9002-86-2 PVC) The effects of the sepn. conditions, such as the pore size of the membrane, oil concn., the operation pressure, and the stirring rate on the filtration rate were examd. The sepn. rate decreased rapidly just after the beginning of the operation, and then gradually due to the gel formation of the emulsified oil on the membrane surface. 9002-86-2 7901 287 SI - CA/089/220194U AU - Sittig M AD - USA TI - Vinyl Chloride and PVC Manufacture: Process and Environmental Aspects SO - 1978,354 pp. CD - BOOKA AB - CBAC COPYRIGHT: CHEM ABS A book. Book vinyl chloride PVC environment Polyvinyl chloride manuf environment book RN - 75-01-4*, 9002-86-2 EM - 7901 288 SI AU AD TI SO LA CD AB CA/089/220176Q Hilado CJ ; Machado AM Fire Saf. Cent., Univ. San Francisco, San Francisco, Calif. Char yield and toxicity of pyrolysis gases from materials J. Fire Flammability; VOL 9, ISS July, 1978,367-76 ENG JFFLA CBAC COPYRIGHT: CHEM ABS Char yield and toxicity of pyrolysis gases from rigid and flexible cellular polymers, plastics, and RNW 1884 u I I 77 00009176 PVC PAGE 120 RN EM 289 SI AU AD TI SO AB RN EM 290 SI AU AD TI SO AB RN EM 291 SI AU AD TI SO LA CD AB elastomers were detd. The toxicity of pyrolysis gases from N-contg. cellular polymers and S-contg. plastics increased with increasing char yield. Increased char yield l's not necessarily assocd. with reduced toxicity. 108-80-5; 9002-86-2J 9002-88-4; 9003-53-6; 9003-56-95 9010-98-4; 9011-14-75 9016-75-55 25014-12-45 25038-54-4; 62238-79-35 67183-98-6 7901 CA/089/203761J Osaka T Japan Decomposition of polyvinyl chloride base waste Japan. Kokai PATENT NO. 78 60974 05/31/78 (Fuji Chemical Machinery Co.* Ltd.) CBAC COPYRIGHT: CHEM ABS PVC-contg. waste is fed to a rotating retort at .Itoreq.350.degree.. (9002-86-2 PVC) The decompd. products* HCl and org. distillate are collected. The resulting carbonaceous residue is crushed and steamed to remove org. matter. The method is useful for treating waste PVC film. 9002-86-25 7647-01-0 7901 CA/089/203701Q Iwai N ; Okumura T Japan Apparatus for treatment of wastewater Ger. Offen. PATENT NO. 2806415 08/17/78 (Sekisui Chemical Co., Ltd. ) CBAC COPYRIGHT: CHEM ABS The app. is composed of several rotating blades of noncellular synthetic resin, e.g., PVC or polyethylene* mounted on a common shaft . (9002-86-2 PVC)(9002-88-4 Polyethylene) Aerobic microorganisms are grown on the <3 mm-thick blades which are then partially dipped in the wastewater. The app. features high wastewater treatment capacity* long service life, and small dimensions and wt. 9002-86-25 9002-88-4 7901 CA/089/203384P Hilado CJ ; Machado AM Fire Saf. Cent., Univ. San Francisco* San Francisco* Calif. Smoke studies with the Arapahoe chamber J. Fire Flammability; VOL 9, ISS April, 1978,240-4 ENG JFFLA CBAC COPYRIGHT: CHEM ABS Tests on a no. of materials, e.g., poly(Me methacrylate), poly(vinyl chloride), and linoleum, indicate that comparison of materials on the basis of smoke as a percentage of initial wt. may be the most broadly useful approach for screening purposes over the long term with the Arapahoe smoke chambers. (9011-14-7 Poly(methyl methacrylate ))(900^-86-2 Poly(vinyl chloride)) RNW 1885 II '* II n % a 00009177 PVC PAGE 121 w 44 W 41 44 ~ ^ A W A W ^ W # -- Ji RN - 9011-14-7J 9002-86-2J 9003-07-0; 9003-53-65 9003-56-9 EM - 7901 292 SI - CA/089/203368M AU - Gough TA ; Webb KS J McPhail MF AD - Lab. Gov. Chem. London, Engl. TI - Diffusion of nitrosamines through protective gloves so - IARC Sci. Publ.5 VOL 19, ISS Environ. Aspects N-Nitroso Compd., 1978,531-4. LA - ENG CD - IARCC AB - CBAC COPYRIGHT: CHEM ABS N-nitrosopyrrolidine permeated PVC and rubber gloves more rapidly than the other nitrosamines tested. (930-55-2 N-nitrosopyrrolidine )(9002-86-2 PVC) N-nitrosodibutylamine permeated rubber gloves to a small extent (2.57. in 2 h). (924-16-3 N-Ni trosodibutylamine) RN - 930-55-25 9002-86-25 924-16-35 55-18-55 62-75-95 100-75-45 621-64-7 EM - 7901 293 SI AU AD TI SO LA CD AB RN EM - CA/089/203367K - Sansone EB ; Tewari YB - Frederick Cancer Res. Cent., Frederick, Md. - The permeability of laboratory gloves to selected nitrosamines - IARC Sci. Publ.5 VOL 19, ISS Environ. Aspects N-Nitroso Compd., 1978,517-29 - ENG - IARCC - CBAC COPYRIGHT: CHEM ABS Lab. gloves made from PVC, nitrile rubber, neoprene and(or) natural, rubber of varied thickness (0.2-0.5 mm) provide no full protection from nitrosamine solns. in Me2CO, CH2C12, EtOH, and H20. (9002-86-2 PVC) The permeability of glove materials to dimethylnitrosamine, ethylmethylnitrosamine, diethylnitrosamine, butylmethvlnitrosamine, dipropylnitrosamine, diisopropvlnitrosamine, and di-sec-butylnitrosamine was detd. (62-75-9 Dimethylnitrosamine )(10595-95-6 Ethylmethylnitrosamine)(55-18-5 Diethylnitrosamine )(7068-83-9 Butylmethylnitrosamine)(621-64-7 Dipropylnitrosamine H601-77-4 Diisopropylnitrosamine)(5350-17-4 di-sec-butylnitrosamine ) - 9002-86-25 62-75-95 10595-95-65 55-18-55 7068-83-95 621-64-75 601-77-45 5350-17-4 - 7901 294 SI - CA/089/203257Z AU - Neu NP AO - Comput. Cent., Solvay et Cie S. A., Brussels, Belg. TI - Minicomputer connected to process-chromatographs for monitoring air pollutants in uorking areas so - Textes Conf. Cadre Congr. Int. "Contrib. Calc. Electron. Dev. Genie Chim. Chim. Ind.5 VOL D,, 1978,44-9 la - ENG CD - 39EYA RNW 1886 II !7 00009178 PVC PAGE 122 AB - CBAC COPYRIGHT? CHEM ABS Air pollution by vinyl chloride during the prodn. of PVC was monitored by a gas chromatograph equipped with a minicomputer. (75-01-4 Vinyl chloride )(9002-86-2 PVC) RN - 75-01-4J 9002-86-2 EM - 7901 295 SI - CA/089/203134G AU - Babicka L AD - Vyzk. Ustav Energ. Prague* Czech. TI - Use of plastics for air sampling SO - Ochr. Ovzdusi; VOL 10, ISS 4, 1978,62-4 LA - CZE CD - OCOVA AB - CBAC COPYRIGHT? CHEM ABS Plastic foil bags made from vinyl chloride-vinylidene chloride copolymer and poly(ethylene terephthalate) are the most suitable, among different plastics tested, for air sampling. (9011-06-7 Vinyl chloride-vinylidene chloride copolymer)(25038-58-8 poly(ethylene terephthalate)) Due to permeability of these plastic to halogenated hydrocarbons, the samples should not be stored in the bags for .apprxeq. 10 h. RN - 9011-06-7; 25038-58-8; 9002-83-9; 9002-86-2; 9002-88-4; 9003-18-3J 9011-17-0; 24981-14-4J 28412-31-9 EM - 7901 296 SI - CA/090/012340G AU - Asai M ; Tsuda K ; Okada A AD - Japan TI - Prevention of elution of plasticizers from poly(vinyl chloride) for medical use SO - Jpn. Kokai Tokkyo Koho PATENT NO. 78114875 10/06/78 (Agency of Industrial Sciences and Technology) AB - CBAC COPYRIGHT: CHEM ABS The elution of plasticizers from poly(vinyl chloride) for medical use can be prevented by treatment of the surface of polymers with gases (e.g., Ar) (which are incapable of promoting plasma polymn. ) under vacuum. (9002-86-2 Poly(vinyl chloride)) Thus, poly(vinyl chloride) contg. the plasticizer diethylhexyl phthalate was treated with Ar plasma for 5-30 min at 10-3-10-1 Torr and 13.56 MHz. (117-81-7 Diethylhexyl phthalate) Only 0.01 mg plasticizer/50 mL bovine blood serum was found after immersing a disk (400 mu thickness; 10 cm diam.) in bovine blood serum for 30 min. RN - 9002-86-25 117-81-75 630-08-05 1333-74-05 7440-37-15 7664-41-7 DTG - BLOOD CONCENTRATIONS EM - 7901 297 SI - CA/090/0122680 AU - Ihlenfeld JV ; Mathis TR ; Barber TA 5 Mosher DF ; Riddle LM AU - Hart AP 5 Updike SJ 5 Cooper SL AD - Dep. Chem. Eng., Univ. Wisconsn, Madison, Mis. TI - Transient in vivo thrombus deposition onto polymeric biomaterials: role of plasma fibronectin SO - Trans., Am. Soc. Artif. Intern. Organs; VOL 24,, 1978,727-35 LA - ENG RNW 1887 l\ II 00009179 PVC PAGE 123 CD - TAIOA AB - CBAC COPYRIGHT: CHEM ABS Of the 5 polymers examd., poly (hydroxyethyl methacrylate) (HEMA) and poly(acrylamide ) (AM) surfaces surprisingly showed high thrombus deposition in spite of their reported thromboresistance. (25249-16-5 Poly(hydroxyethyl methacrylate ))(9003-05-8 Poly(acrylamide)) This was attributed to monomer purity and grafting technol. used to make the hydrogel-grafted shunts. Both thrombogenic and embolic events occurred on the AM surface. Thrombus adherent on HEMA remained attached during 2 h observation. However, fibrin and platelet radioactivity began to drop after between 90 min and 120 min of blood contact, suggesting that the embolic events began at that point. In a 2nd part of the expt., it was found that the human fibrinogen preadsorbed to poly(vinyl chloride) (PVC) contained no fibronectin (FN; a glycoprotein, also known as cold insol. globulin). (9002-86-2 Poly(vinyl chloride)) Thrombogenesis on this surface was markedly enhanced over that on the uncoated PVC consistent with reported platelet adhesion enhancement in vitro. However, the enhancement of thrombogenesis on FN-coated PVC and Silastic indicated that FN present in the fibrinogen prepns. influenced the results. Contrary to the earlier reports albumin-coated PVC showed that initial platelet deposition was not inhibited. Rather the activation of initially deposited platelets in a manner predisposing to thrombogenesis was prevented. The thrombogenic enhancement on FN-coated surfaces indicates that it may play a role in foreign surface-induced thrombosis. Preventing or minimising the initial adsorption of FN and fibrinogen is presumably an important strategy in developing biocompatible polymer surfaces. RN - 25249-16-55 9003-05-85 9002-86-25 52503-89-6 EM - 7901 298 SI AU AD TI SO LA CD AB RN CA/090/012229C Stepniewska E 5 Stepniewski M Oddsialu Chirurg. Gastroenterol., Univ. Adama Mickiewicsa, Krakow, Pol. Composition of some fluids used for intravenous infusions Prsegl. Lek.5 VOL 35, ISS 8, 1978,679-82 POL PRLKA CBAC COPYRIGHT: CHEM ABS The amt. of insulin recovered after simulated i.v. infusion using glass containers increased, but not proportionally, with increases in the amt. of hormone added to the glucose in the container, whereas recovery of insulin from PVC containers was almost the same regardless of the amt. added. (9004-10-8 Insulin)(50-99-7 glucose )(9002-86-2 PVC) Insulin is evidently adsorbed to both plastic and glass containers. Electrolyte levels were detd. in penicillin G and amino acid injection solns. and the importance of knowing such levels in order to regulate administration of other electrolyte-contg. solns. is emphasised. (61-33-6 Penicillin G) 9004-10-85 50-99-75 9002-86-25 61-33-65 16887-00-65 17341-25-25 24203-36-9 RNW 1888 H 00009180 PVC PAGE 124 EM - 7901 299 SI - CA/090/001711C AU - Okada Y 5 Igarashi Y ; Matanabe K AO - Japan TI - Microencapsulation of agrochemicals containing organophosphorus compounds SO - Ger. Offen. PATENT NO. 2815139 10/19/78 (Kureha Chemical Industry Co., Ltd. ) AB - CBAC COPYRIGHT: CHEM ABS Microcapsules contg. org. P compds. were prepd. by using polymers as provisional capsule envelopes* dissolving chem in capsule-contg. org. P substance consisting of 00VP or di-Me 1 *2-dibromo-22-dichloroethyl phosphate at 0.1-10 wt. parts per 100 wt. parts of capsule-contg. compds.* and dispersion of the soln. formed in an aq. system (e.g. of gelatin). (62-73-7 DDVP)(300-76-5 Dimethyl 1 *2-dibromo-22-dichloroethylphosphate ) Microdrops formed in the system are covered with a thin film of the envelope-forming substance. From this film-covered drops a permanent capsule is further formed according to known complex-coacervation processes. The microcapsules having a double envelope composite structure are removed from the coacervation-dispersion bath and dried. After automatic decompn. of the provisional envelope* dry capsules o org. P compds. with a permanent one-layer envelope are obtained. RN - 62-73-7J 300-76-5; 9000-01-5J 9002-86-25 9003-20-75 9003-53-65 9011-05-65 9011-14-7 EM - 7901 * * * * END OF OFFLINE PRINT ***** RNW 1889