Document 5kwL669Z8rJ1bkwNn5G85QZoR

^ivq Mr. I*. 8. Colic* Mellon Institute **00 Fifth Avenue Pittsburgh 13, Pennsylvania Mr. K. V. McCullough Mr. H. A. Calslbet April 10, 1957 * -, Polyvinyl Chloride Degradetl n Dr. Joseph Blgoa - 0. 3. St el Dear Mr. Qulickx This question has been raised repeatedly over the years, and It has not United the use of polyvinyl chloride in floor and wall coverings as well as for upholstery, etc. A report was Issued In January, 1951, by the United States Department of the Interior, Bureau of Mines, Report of Investigations *777, on the "Thermal Decomposition Produots and Burning Characteristics of Sons Synthetic Low-Density Cellular Materials." This study included cellular polyvinyl chloride and soft cellular polyvinyl chloride. In auwnary this report states that for all Materials carbon Monoxide appeared as a principal gaseous product of toxicological significance, together with hydrogen chloride in the case of polyvinyl chloride Materials. Zt has been our opinion that the maxianas hazard Is fron CO which la present when aost any organic Material is burned. The CO la Insidious in that it possesses no warning power, while MCI fumes are irritating and have good warning powers. Therefore, there is an additional factor f safety present with the polyvinyl chloride Materials upon combustion. Polyvinyl chloride will not support combustion, but if it is heated to a sufficient degree, of coarse it will burn. ucc 063326 Nr. ft. X. Oullek -2- April 10, 19$7 It would seen that they should not ho greatly concerned regarding the thin eoatlng of polyvinyl ohlorlde on steel. Based upon a weight basis, these would be In proportion to a snail quantity of the resin, certainly nothing like that anount In a floor covering or upholstery atonal. be have not seen the report referred to by Nr. Burke and written by Hr* Alan Bhrlescheis. Very truly yours. Thonas V. Male, M. 3D. re MRDXCAX* DIRECTOR ucc 063327 MEMORANDUM Svwtert Umitco Statm Snti Corporation Dath March OB, 1957 Autmorj 0. E. Cut1ex '% \ 0* JORCPN |IM AMO MR* BRTAH OuRHC OR OVOJtCT (MNNT fAUCO TO Oitcoeo Tin fimirhcr for oncct irm with mkooro* Amonioi Ujocr, amo tmc vritca. Both Or* piece amo Mr, Ovrmc arc oircctlv conncctco vitm me pmocram AT tmc (mvim Work* roo coatima omcct otccv amo arc vith tmc Coatimoo croup or V* S* STCtL'O ACOCARCM LAOORATORr I* MONROCVILLC. Or* BlOOO 10 NCAO or THIO U. 8. tTtu Corporation mao occm promotion tmc oxvclopmckt or fACToy COATtO OMCCT OTCCL MM CM COtfLO Ot PORTFORMtO INTO OFFICC FORMI TlfCt, RAO10, AMO tcuevirion carinctr, ere. To oatc, tmct mavc ocpcmoco upon coatimoo mamuFACTURCRR TO OUPPtT PACMAOCO COATIMA OTOTtMO OUT TMC OCOULTO MAVC OCCM UNRATIO* FACTORY AND OOMCWMAT IRCOMOIOTCMT* SUOACCT COMPART MAO HOT DONC AMT COATIMO FORMULATION TORS OH TMI# PAOJCCT* OUK TO TUC UNRAT|OFACTORY RCOM.TR ORTAIMCD IN UORXIMO TMROUOM COAT!NOR CUPPLtCAR, If* S. STCCL MAS NOV OCCiOCO TO 00 OAR 1C OCVtlOPMtNf UORR ON TMC PAOACCT* ThCV VOULC TMUt CVCMTUALLT NOPC TO Ot IN A POSITION TO VRITt FORMICATION SFCCIFICATIOMR RATMCR THAN RCPCNO UPON TMC PCR* FftRMANCC CPCCf FI CATION# MOV (MIC. fiV WRITIM FORMULATION RPCCfFICATIOMR, TMCT COWO CKCCUTf A TtCMTCR CONTROL ON MATSRIALS URCO AMO MAVC A OCTTCR MNOCRRTANOIM OF TMC PROOUMO CMCOUMTCRCO. OR. BlOOS CAPRCRRCO A OCRIRC TO VORR CLORCLT VITM UR OR TMI# PROJCCT. Tmc imfowatiom rivcr in Hcicarc >1 cmtitlCO ``New Primcrr for Vimtl Pi RPCRSI ON riMIOMCO" VAR OIOCURRCO IN OCTAIL* StVCRAL RtRIP# OF U* S* Iritl'l PRCRCMT CHPCRIMCMTAC COATINR CTRTCMO UCRC CTCAM PROCCRRCR* OMR OTOTCM RAVt COCO OCOULTO IN TNIR TCRT. Am ADDITIONAL OCRICR OF PAMCLO VCRt PUT ON TCRT IN TMC WMIOITV DOS* Extra PAMCLO vcrc lcft for our fvathca ocmcral cvaluatiom. Dr. BlOOO RCRvCRTCO THAT VC CMCCX TMCOC PAMCLO IN AMT OF OUR OTAMOARO YCRTR M FCCL UOULO DC APPtlCAOLC* If* 8* 8TCCL 10 PLANNINA CATCAI A CRPOOUOC TCOTO in Tchad amo Florida* Dvrimo me course of tmc oircurcion, Mr* Purrc poimtco out tmat omc or TMC OOOTACLCO If. 8. STCCL MAO MCT IM PROMOTIMO VIMTL COATCO OTCCL MAO OCCM TMC PAORLCM of TORICITT* Ml MCMTIOMCO a PAPCR RCCCMTLT PUOLIOMCO AI TIMA TMC PCNCCMTAOC OF MTOROCMLORIC ACID FUMCO UMICM UOULO DC OCLCAOCO TO A OtVtM VOLUMC OF At A OT A OIVCU AMOUNT OF RM-WIMTL IULMIM If ffARAMATiMM OF TMC PQiWlMTL CHLORIOt. TmIO PAPCR VAR URITTCR OT MR* AlAM IMRICOCMCIM OF TMC BvACAW RF STAMOAROR. HC to NOV VITM Coco RCMARCM, IT 10 me author'd CPIMIOM Tmat A COMOIOCRAOLC VOLUMC OF VINVL RCCIR It MARHCreO RT VIRTUC OF TMI# OPCRATION AMR TMAT VC 1MRUL0 COOPCRATC Vim V* $ Stccl Corporation iu furtncr ocvclopmcmt* Or* ptooo to poicmolv touaroo PaMLITC OCCAUOC OF MIR CLORC PRIOR AOOOCIATIOM VITN VO AT HftLQM IMRTITVTC AMO terI Ml TILT RCRIACR cur COOPCRATIOM* Tmc VRITCM CLDC RCUCVtt VC tHROLR TAMC MQ/t4 CCi Hr* K V* McCmlloucm Mr. It* A, Calaioct Or* V. 0* Acocca Ha>JT. L* Larson pT T, V* Mali (Mat VC MAVC TOUR NR. V* H* McKmICNT 0 OR me LOOT PAMAOMiPv) SENTENCE APR 8 1957 IMev'r!"..i' tf.' '.'! 1 T0xiui.ui.i .kmmm