Document eKJ1aaoVYbX0Nye1J6jGdEee

TOi FROM: DATE: Dr. F. E. Bailey, Jr. J. J. Brezinski May 19, 1967 "received m; 22 1967 R. N vheeler . . 689G13 EXPLORATORY VINYL RESIN SCREENING Chloride Content of Vinyl Resins. Laboratory study of the method of definition of chloride content of vinyl resin using the Paar bomb technique is in progress. The data developed with the QYTQ-7 resin indicates that a standard deviation of about 0.10 percent (calculated as poly(vinyl chloride)) may be possible. The major change from the present practice at the South Charleston plant laboratory is the use of potentiometric titration. Definition of resin drying con ditions which yield accurate, precise values particularly with dense low molecular weight resins (i.e. QYAC-10) are required before the maximum precision can be established. Such studi s are in progress. G. H. Potter, S. E. Engle Trace Metal Analysis in Vinyl Resins. The presence of certain trace metals in vinylresins can have an appreciable effect on the thermal stability and other performance charac teristics. Atomic absorption is the newest of the techniques which have been studied by analytical personnel of R and D (R. L. Anderson et al) and the South Charleston plant laboratory (J. W. Kearns et al). A method suitable for definition of th lead content of vinyl resins has been written by R. L. Anderson and C. E. Matheney and circulated for comment. Presently, the South Charleston plant laboratory is conducting a study of the use of atomic absorption for definition of sodium, calcium, iron and lead content of the VAGH resin using the technique developed in R and D by J. G. Harpold. We have gone on record favoring the installation of atomic absorption equipment at the Texas City plant laboratory. The value of the instrument was further demonstrated by the iron analyses obtained during an earlier investigation of suspension resins of variable thermal stability. G. H. Potter, C. E. Fry, R. L. Anderson RESEARCH AND DEVELOPMENT DEPARTMENT CHEMICALS AND PLASTICS UNION CARBIDE CORPORATION ucc 0423S2 2 Volume Resistivity of Vinyl Resins. The test method "Determination of Volume Resistivity in a Vinyl Resin Compound" has been formalized, circulated for comment and with several minor improvements recommended by Bound Brook personnel will be published as a Confidential Test Method. J. W. Fields, H. J. Pazinski, T. Hazen Extraction Studies of "0" Resins - FDA Status. Initial studies conducted y--Dr. W. B. Ackart indicated, unexpectedly, that the heptane extract of the QXOM-7 resin Blend 3 (0.13 percent) was higher than the limit specified by FDA for the vinyl chloride-propylene copolymers (0.10 percent). Two additional samples (Blend 1 and Blend 6) supplied to Dr. Ackart also yielded high heptane extract (0.17, 0.18 perc nt). These results are still somewhat surprising as lower m.w. resins (QXQH-7) yield acceptably low extractables. Additional investigation of the phenomenon is planned at Bound Brook. W. B. Ackart, J. J. Brezinski Medium-Sized Plastisol Additive Resins - Test Deve 1 opmen~ A careful review of the procedure used to define the rheological behavior of rigidsols (plastisols containing both a dispersion resin and a plastisol additive resin) suggests that improved precision of measurement is desired and that such improvement should result with the use of a slightly higher concentration of liquid in the formulation. Studies to define the optimum liquid level for characterization of medium-sized plastisol additive resins are in progress. K. D. Cavender, J. L. Hockersmith mv ucc 042353 Distribution Dr. W. B. Ackart, 312 Mr. J. W. Chatfield, 514 Mr. J. W. Kearns/ Mr. C. E. Matheney, 514 Mr. R. L. Anderson/ Mr. J. G. Harpold, 511 Mr. J. L. Hockersmith, 515 Mr, R. N. Wheeler, 514 Mr. H. T. Pazinski, 312 Mr. T. Hazen, 312 ucc 042354 " BUSINESS CONFIDENTIAL V?; --' ^ *'{& ' t ^ ;j'*` "- "T - -, ;" ''^i1-: Tr ,, ^ , ` MEMORANDUM TO: Dr. C. K. Fink MONTHLY REPORT RECEIVED W APn 2 8 1967 R. k yh--Lr FROM: = 'V* -- v DATE: W. H. Bauer April 25, 1967 SUBJECT: Vinyl Resin and Plasticizer Summary - Tarrytown Technical Center - April, 1967_____________________________ ___ CALENDERING, FLOORING & RECORDS -t CALENDERED FILM & SHEETING (333B50) 1. HARTE & COMPANY A sample of plasticized vinyl sheeting currently being employed by Fisher Body Division, General Motors Corporation, is being analyzed for plasticizer type The vinyl provides a Gardner gloss of 50 when tested according to the revised GMC fog test at 195F. Harte & Company is searching for a commercially available plasticizer system that will provide the desired gloss reading of 76 when subjected to the GMC fog test at 195F (L. G. Krauskopf) 2. PLASTIC CALENDERING CORPORATION Samples of vinyl sheeting designed for U. S. Government plastic portfolios were tested for tear strength at thec request of this customer. % (L. G. Krauskopf) . .'Ai : FLOORING PLASTICIZERS (333D50) Samples of 2 -ethylhexyl, acetoxyethyl phthalate containing varied "x" values ("x" referring to the number of mols of ethylene oxide per mole of plasticizer ) have been subjected to performance tests in vinyl compounds. Results showed that only slight variations occurred in volatility efficiency and stain resistance as a function of the "x" value. More significant variation was noted in water extraction and solvating characteristics, as a direct function of the value of "x". However, it appears that these variations are not dele terious within the range of "x" values believed reasonably attainable in plant production of the plasticizer. (L. G. Krauskopf) 2- - PLASTISOLS (343G50) 1. EFKA PLASTICS On April 10, 1967, a visit was made to Efka Plastics, Bayonne, New Jersey, to discuss a plastisol viscosity problem encountered with a recent shipment of FLEXOL PM-4048. A 10% increase in plasticizer concentration was necessary to maintain the desired flow characteristics. After a lengthy discussion, the cause was narrowed down to possible contamination. Although the problem was reproducihle in the laboratory, no contamination of the plasticizer blend, nor any other factor could be cited as the cause. 4 -: 4 (E.B. Harris) 4 PLASTICIZERS GENERAL (333X50) :- , 1. n-PHTHALATES .. Most of the laboratory work in die evaluation of di -normal -alkyl phthalates is complete. Additional data analysis remains to be done before the projectlhv *>--- complete. '* - (E.B, Harris) ^ - ?- - FLASTISQLS (343G50) , * -A` ` *v *' 'V -ff- L& '-5-wltf 1. BRABENDER PLASTISOL EVALUATION ________ ' !.t '' **' ` ' w: ^ Two days were spent trying ou' t the SPI te- st proce4 du*ref,or evalua- ' ting plastisols on the Brabender Plasti-Corder. The method appears to show promise as a tool for characterizing plastisols, but, at present, is limited in application. (E.B. Harris) ': -i.s GENERAL (333X50) . *?. ; , : . 1. COMPUTER PROGRAM |fotewbrthy programs run during April were: ..-V Sv", ^ , '. - n-phthalate data analysis - 2. Formulation development for Commercial Standard (25-230-60, vinyl weatherstripping 34?.* Customer ProblengSr Plastic Calendering Corporate '5 v*n ** V (E. B. Harris)*& ' '< ^ *, '' -V> *, - V:-ni .-** f Air MOLDING k EXTRUSION (211E50) 1. MIDLAND PLASTICS The tensile/elongation properties of waterstop compound based on FLEXOL plasticizer 426 were found to be too borderline. Formulation modifications were suggested based on FLEXOL plasticizers DOP and NODP. (L. G. Krauskopf) WIRE & CABLE (223C50) > 1. PACKARD ELECTRIC DIVISION, GENERAL MOTORS CORPORATION Pursuant to a technical call, we have forwarded a group of Technical Service Bulletins and Technical Service Reports concerning laboratory studies previously conducted in the applications areas of interest to Packard Electric. In addition, a laboratory sample of FLEXOL 1050 was supplied for evaluation in 105 degree type wire. It was pointed out that the odor, of the laboratory sample is not typical of that expected from ,:-T future plant runs. Our major objective is to obtain a customer appraisal of the performance characteristics of FLEXOL 1050. .' " i 2. FLEXOL 63 (L. G. Krauskopf) P> A new lot of Cereclor 42 was examined in FLEXOL 63, PM-4638, for electrical properties and found to be acceptable for shipment. The deleterious effect of copper in contact with Cereclor 42 is still under study in South Charleston. The results are expected to confirm those obtained by this laboratory which showed that Cereclor 42 should not be stored in the presence of copper, particularly if the copper is at elevated temperature. 4S - J (E. B. Harris) " MOLDING & EXTRUSION (21 IE 50) ' - ' , ,. ' - `p A three day school was held at Tarrytown for seventy members of the Molding and Extrusion Department. All members of the group participated in the technical session on viirjl resins and plasticizers relating specifically to their use in this - - area. , ' .- (ALL) WHBauer/nal 'V, p K-'-'h uec 042357 New York R. L. Baker G. P. Bigelow F. D. Dexter A. E. Donaldson J. T. Ferguson J. A. Francis L. D. Harris J, M. Herbert M. H. Jellinek W. H. Joyce C. E. O'Rourke G. C. Shipston J. R. Wilkinson Clifton D. L. Leonard DISTRIBUTION South Charleston F. E. Bailey J. J. Brezinski G. H. Daniels R. A. Huber r R. G. Kelso % D. L. MacPeek f C. W. McGary X E.J. Mills ' D. H. Mullins/J. W. Fields J. J. Smith R. N. Wheeler (Box 8004) Bound Brook A. J. Costantin F. A. DeMeiio R. E. Gulick G. G. Himmler L. A. McKenna. H. J. Pazinski F. J. Skiermont N. L. Zutty ?-aT Texas City M. E. Eisenhour J. F. Erdmann N. A. Gimber J. L. Hockersmith D. E. Richardson ` .*t * .^ ^ ., \ ;;