Document QkY1JbOMzkMN8om42XNNenXev

n mn <-- u JP*- U)CT BUSINESS CONFIDENTIAL RECEIVED JUfl 11 197j MONTHLY REPORT MAY 1973 MEMORANDUM TO FROM DATE SUBJECT: Dr. H. E. Fritz L. G. Krauskopf Tune 1, 1973 Vinyl Resins and Plasticizer Summary - Tarrytown Technical Center HIGHLIGHTS Non-Asbestos Tile GAF has conducted an experimental plant trial of NAT on the "mottle line". Processability of NAT was Judged very favorably; mechanical properties of the test tiles were not on target, but believed within range of a plasticizer adjust ment. A larger-scale plant trial of NAT is planned by GAF for the near future. -2- PIASTIC1ZERS FOR MOLDING AND EXTRUSION (211V50) Franklin Plastics Corporation, Bound Brook, N.T. . Four different formulated PVC compounds representing potential candidates for approval by Ford Motor Co. were tested against the critical requirements in the supplied specifications. Two compounds were unable to meet the specifications due to low percent elongation and a high specific gravity. Other critical requirements examined (hardness, flammability, etc.) were satisfactory. Further tesfJpj according to the specifications was not done due to the availability of test'&ifraratus and/or materials. The data were presented to Mr. Robert Holzapfel ofthe subject company. Franklin purchases about 2 MM lbs. of BAKELITE vinyl resins and 3 MM lbs. of FLEXOL plasticizers per year. W. B. Drozdowski/D. B. Braun VINYL RESINS FOR CALENDERING AND FLOORING (211V40) Kentlle Floors. Inc.. Brooklyn. N.Y. For comparative testing, Kentlle submitted 9 vinyl chloride-vinyl acetate copolymers from various suppliers, and tile made from each. The objective of this study was to determine if copolymer resins from different suppliers controlled within specification limits for inherent viscosity and PVC content would exhibit measurable molten flow differences when each is formulated into vinyl asbestos tile. This study has been completed resulting in the expected finding that copolymers exhibiting compositional factors (inherent viscosity x % PVC) within Kentile's specification limits of 34 to 37 show only minor differences in tile molten flow properties. Measurable differences in Brabender molten flow properties (tile) were determined for those copolymers found to be outside these specification limits. These differences were considered to be of sufficient magnitude to cause processing problems on tile production lines. A formal Technical Service Report documenting this information has been prepared and will be submitted to the customer. R. P. Braddicks/R. F. Horvath MECA. GO. CAPROLACTONE DERIVATIVES (211S93) 1. Crosslinked TDl/P-737 Two additional crosslinked TDl/D-737 (excess TDI), plasticizers are undergoing initial evaluation in PVC as a possible second gertei^ion solid type plasticizer with improved performance over PCL-780.,^j * D-737 plasticizers prepared with 4% excess TDI appears/t the first lot of a crosslinked plasticizer with respect toimecj^^^lf^toperties. -3- The other crosslinked plasticizer (10% excess TDI) in PVC reveals slightly higher tensile and modulus values which is not surprising since it should contain more crosslinks. All of the crosslinked TDl/D-737 plasticizers contribute higher tensile values as the concentration of each plasticizer is increased. Even more surprising has been an increase in tensile values at constant levels of TDl/D-737 in PVC when the EPO is incorporated in increasing levels up to 10 PHR. This is in contrast to "Santicizer" 334F in PVC, which is being examined as a control along with the crosslinked plasticizers. One of the objectives for a second generation solid plasticizer is a reduction in Durometer values compared to PCL-780/PVC. The crosslinked TDl/D-737 plasticizers reveal a slight reduction in Durometer values when compared to PCL-780 but are inferior to "Santicizer" 334F in its ability to produce relatively low Durometer values. A reduction in the molecular weight of the crosslinked plasticizers may be in order to reduce the Durometer values. The elongation values exceed that of 334F. Further work will explore the moisture and solvent resistance of the crosslinked TDl/D-737 plasticizers in comparison to PCL-780 and "Santicizer" 334F. R. E. Godlewski 2. PCL-780 A comparison of an older lot of PCL-780 pelletized (lot B-1040) with a more recent lot of PCL-780 (lot 9533-59) which was in shredded form and ^devolatilized of styrene was undertaken to determine whether the former had ^changed in plasticizing efficiency due to a reported decrease in reduced viscosity caused by moisture depolymerization of the polycaprolactone segments with time. Both were incorporated into QSAH-7 with and without EPO. The mechanical properties including low temperature performance were similar. One difference noted visually was the more nervy character of the more recent lot in PVC during processing. This is probably due to the higher reduced viscosity value for the recent lot. This study alleviates the fear that the sampling of the older lot PCL-780 would not be typical of what could be produced currently. R. E. Godlewski 3. Compatibility of PCL-780 and Polyurethanes in PVC It has been noticed that a powdery bloom does appear on the surface of molded plaques of PCL-780/PVC and the TDl/D-560 plasticized IVC with time. It has been theorized that too high a level of metallic stabilizer in the formulation will upset the solubility of the solid plasticizers causing bloom. However, preliminary studies have Indicated that perhaps too little of the metallic stabilizer causes the formation of bloom. This in coml^aa'tion with increasing levels of EPO also encourages bloom formation. ItTs^tbp early to speculate on what is really occurring but evidence is being accumulated to make some sensible Judgments as to factors influencing bloom and ways to avoid it. -4- Thls study has also pointed out that environmental conditions (temperature and humidity) play an important role in bloom formation. , R. E. Godlewski 4. Polyurethane Elastomers in PVC I have been recently assigned to participate in a portion .of the work connected with this project. Assimilation of the necessary .background informa tion is in progress. Plans are being formulated for the necesiary^boratory work. At present, polyurethane solid plasticizers Identified 84- 80-1, 2, 3, 4, 5 representing D-560 and D-737 polyols reacted with^VStfious stoichio metric quantities of TDI are being scheduled for evaluation as petmanent PVC plasticizers. A review of previous test procedures is l>eing made in an effort to select those tests which provide data most beneficial in effecting a reliable evaluation of these new candidates. R. P. Braddicks i- i PCL IN NAT (211S941 t c\ li GAF Corporation. Vailsqate. N.Y. t V- An experimental plant run of the NAT disclosure formulation has been ( i made at the GAF, Vailsgate factory. This test run demonstrated that the Banbury and milling properties of this composition are written acceptable limits for GAF's t tile operations. Although this evaluation was conducted on the mottle line and not the tile production unit, it is felt that the results are sufficiently encouraging ^to now schedule a test run on the tile production line. The tile produced during |thls evaluation proved to be too hard resulting in poor impact resistance. It is fbelieved that tile reformulated to proper hardness will exhibit improved impact ; resistance. Dimensional stability of this tile proved to be well within the 24 mils per 12 inch limit. R. P. Braddicks 2. NAT PATENT APPLICATION STATUS The original filing of the NAT patent application was rejected by the examiner on the grounds that the claims embodied in this document were obvious to one skilled in the art. As a result of an appeal, it became apparent that additional data would have to be generated before this examiner would consent to a reversal of his decision. G. Skoler of UCC's Legal Department has re quested that additional work be done to establish that PCL-700 does in fact improve the "hot tensile strength" of non-asbestos containing stocks and that our claims do not conflict with compositions referenced in the Henriques patent# 3,091, 597. This work has been completed and the results obtained provide the needed support, A Project Report summarizing this shortly. will issue - ` .C `r- -5- VINYL RESINS FOR WIRE AND CABLE APPLICATIONS (223T90) Phelps-Dodge Industries. Yonkers. N.Y. This company has periodically experienced problems with rapid clogging of extruder screen packs. It is their belief that these problems occur most frequently when they are using our QSAN-7 vinyl resin. In late April, they sent us the screen packs which have caused the problem along with the dryblend they were using. Chemical and screen ai&re3 Indicated the clogging was caused by agglomerates of calcined clay fill In early May we visited their plant to try .-the problem. Observation of the mixing operation and examination of ampei^^and temperature charts for their Beacon Mixer strongly suggested that ffeirlihbang cycle was too short. It appeared to us that clay filler was being charged to the mixer before a dryblend of resin and plasticizer had been achieved.: This suggests that plasticizer still present on the surface of the resin particles was being adsorbed by the filler causing filler agglomerates. Based on this theory, several suggestions for changes in mixing cycles were offered. We also recommended an inspection of the inside of the mixer which reportedly was last done several years ago. They will report their findings to us some time in June. D. B. Braun PCL-780 IN WIRE AND CABLE APPLICATIONS (223T60) 1. Times Wire and Cable Coro.. Wallingford. Conn. PCL-780 plasticizer was introduced to personnel of Times Wire and Cable Corp. during an omnibus technical meeting at Bound Brook in mid-May. 7 They immediately expressed interest in its potential use in a non migrating PVC Jacket for polyethylene insulated coaxial cables. Since they have no facilities for laboratory or plant scale mixing of PVC, they requested we supply them with 25 lbs. of a candidate formulation to try in a small plant scale trial. We agreed to supply the material. They also indicated . a willingness to permit us to observe the trial. ,` D. B. Braun rv.-* 2. FCL-780/PVC Wire and Cable Insulation for Non-Moisture Applications 1 ..... Efforts have centered around the development of a PCL-780/pVG insula tion for U.L. 758 125C rated appliance wire. : > -> Six compounds were extruded as part of a factorlally^Mj^^nea experiment which examines the effect of five formulating variables (resli^mecular weight/ lead stabilizer concentration, filler level, -Use trioxide). '.1/64"-wall insulation was produced conductor. No degradation occurred at extrusion temjpdiat ., 400F. However, a generally rough siirface lnsuia'don %a^ -. .  ; .>K >`:-;.-r- -A;* -,'r 3iv-- '-';.-^-C-. .V .r. ',T^-*-- ted the ability to meet j^^^ia^be^^^^n^^UBliil^irTesistance requirements necessary tion tests of this very rigorous ..,,___.____ ^ire^vi2S*s^%2:^''.,;': s*556g&g5^/'j MV* v '': B. Braun ' /*. r^V^necessai sfcfife '^ina chine test. The ierespec- coior the flammability v*` .s&v.:: ^tesrac own. Although they ament SSffK&ri'6ksec. extinguishing A in this test method. ron'She'extruded wire. All samples ; gmon must determine if a ^antimony" trioxide) or whether ... ., hy^^in;^passed at the '. -? - ^"v.f'~-; TV &"':- '. w - v CH^i^'B. 'Drbzdowski/D. B. Braun - i - ^Abt ^ ' * ; "SEiS:ierisfeSwctaiQ Cr^^jr|^^iS|sr'os'^^iii*?)f.^^l>es lapst 'increasestile ^ and binder'V & << levels are-'r"e'qiiirediw-l-.t.h. --S-G- -..1..0..0..S...o....m....a..t.c..h...t..i.l.e.....d..i.m....e..n..s...i.o..n..a...l 's-t..a---billty o f V i<'P`,,>r*)J " **"**?-. t sta jtunmfc &? . -V .- mBs: '? - leal Service Sales to andSpecialty 211;: 1st Quart. -68. Factor of Vinyl ylAcetate Copolymers " ` Tile ^Molten Flow ................. -mm'- DISTRIBUTION New York Office L. D. Burnett-28 A. J. Costantin-28 A. A. D'Onofrio-28 C. R. Field-28 P. J. Johnston-28 R. F. Kayser-28 R. P. KurkJy-33 J. W. Lynn-40 E. H. Mellinger-32 ' S. A. Mortliner-28 J. S. McReynolds-28 G. C. Shipston-28 A. B. Steele-28 South Charleston J. J. Brezinski-720 R. J. Hanna-701 C. W. McGary-701 E. A. Rick-701 ^ L. F. Thdiling-701 R. N. 'V\Theeler-189 Bound Brook : ^ 'Texas City R. B. Baird * E. JEisenhour F. A. DeMelio J. W. Fields W. F. Gorham . R. L. Frantz E. E. Griesser - J. L. Hockersmith G. G. Himmler . D. E. Richardson |M. Matzner |L A. McKenna -, '^N. H. Reinking ,, , , v R. B. Staub ! R. J. Stockman Niagara Falls J. L. Myers Institute. W. Va. A. W. Boyd Taft, La. W. J. Dugan