Document 85BwD4eRYR3vm3XobVvVkg5e

UNION CARBIDE CORPORATION 3a old rogebury road, oanbury, ct oeei 7-0001 November 13,1992 Mr. Boule Hussain Mouloud Benizid Collo Skikda ALGERIA Mr. Mouloud: Your inquiry about vinyl chloride monomer and polyvinyl chloride has been forwarded to me. Union Carbide does not manufature polyvinyl chloride or vinyl chloride monomer. Nevetheless, I am enclosing some general information about these two substances. Also enclosed is information from Ms. Priscilla Stanley on residual vinyl chloride monomer in vinyl chloride copolymer coatings. I hope you find this information helpful. Very truly yours. MRH/pf Mouloud Marvin R. Huffman Manager Toxicology Information Services UCC 107952 UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. P. O. Box 670 Bound Brook. NJ 08805 PRISCILLA B. STANLEY TELEPHONE: (908)563-5444 FDAAJSDA Liaison FAX: (908)563-5035 TO: M. R. Huffman - DB E3 November 3, 1992 CC: J. J. Behen-TT G. J. Dembowsky - DB K4 C. B. Mai Ion - BB R. C. Wise - DB K3 RE: Residual Vinyl Chloride Monomer Inquiry from Algeria Enclosed is a proposed response for the inquiry from Algeria that we discussed by phone yesterday. The inquiry requested information on "toxic effects from Residual Vinyl Chloride Monomer in food and from PVC bottles." As we discussed, Union Carbide does not manufacture PVC bottles, and thus we have no information in this area. ` Union Carbide does manufacture UCAR Solution Vinyl Resins, which are vinyl chloride copolymers used in food and beverage can coatings. I have modified a letter that I had prepared for our domestic customers to produce a "Status Report" for your inquirer. You might wish to use this report as a basis for the conclusion that our finding of non-detectable levels of Residual Vinyl Chloride Monomer (<5 ppb RVCM) in coatings would be expected to permit only toxicologically insignificant migration of RVCM into food, if in fact any RVCM is present to migrate to food. Please call me at 8-422-5444 if you have any questions on the enclosed Status Report. P. B. Stanley oA/ V- g UCC 107953 I UNION CARBIDE STATUS REPORT RESIDUAL VINYL CHLORIDE MONOMER IN "UCAR" SOLUTION VINYL RESINS USED IN FOOD CONTACT APPLICATIONS UCAR Solution Vinyl Resins are used in vinyl coatings on the interior of certain types of food and beverage cans. This report summarizes the results of analyses of several UCAR Solution Vinyl Resins for Residual Vinyl Chloride Monomer (RVCM). In 1986, Union Carbide analyzed a series of UCAR Solution Vinyl Resins, both as supplied to our customers, the coating formulators; and as finished coatings dried under typical commercial conditions. In some cases, coatings formulations were deliberately spiked with vinyl chloride monomer to elucidate the fate of residual vinyl chloride monomer in the coating. Residual vinyl chloride monomer (RVCM) was not detected in five of the six different UCAR Solution Vinyl Resins, tested in the form in which they would be shipped to a customer. The analytical method used in this study had a threshold of ' detection of 3 ppb RVCM (ASTM D-4443-84). Residual vinyl chloride monomer was not detected in any of the films made from the same six solution UCAR Solution Vinyl Resins, using the same analytical method having a 3 ppb threshold of detection. In 1992, analyses were carried out on eight UCAR Solution Vinyl Resins, as supplied to our customers. This study included all of the eight different UCAR Solution Vinyl Resins that we know to be used in can coating applications in the United States intended for food contact use. Residual vinyl chloride monomer was not detected in any of the eight different UCAR Solution Vinyl Resins by a slightly modified analysis method having a threshold of detection of 5 ppb RVCM. Union Carbide believes that the results of our various studies support the conclusion that there is no reasonable expectation of migration of residual vinyl chloride monomer to food when using UCAR Solution Vinyl Resins in coatings and film applications. This conclusion is based on our determination of no detectable vinyl chloride monomer in finished coatings at a detection threshold of 3 ppb. The absence of detectable RVCM in a spiked film that was air dried at ambient temperature for 20 hours provides a strong indication that RVCM is not a concern in commercial interior can coatings dried at elevated temperature. 92621 /PBS:pw UCC 107954 u-UL ^ ti ssrtvfl riovU-cu-^ 'SAd'rtDfl f}LGcr,'ii rj ~<d `. c/<.WA4<y rz?: Uhi O Cct^L^LeJn C&V3/ /!buM.6w^ cJT c>&7^ 4 - o<ao 4 t/J/f <Sj^cwi 'jrJJ&^Lji ^^0 C^/bLa/^uC Jc^ yotj a.CCCpi p/ cr^ cujbV S gt/<7*i - J~ lyfc/lML yt?e* \`C\cd X bcrt-M AW. (-t?lLo cxvi 2 U- I cl 614 jrfiufat, \jUc/U-e~cJ AW ca. l&b&td&uy pd&ib,AtA id c^a d C^jj'vd / u^c? p0\XJ "X OSA*^ ^ AjL*y>ct4Asvy^ C<. rtai^ftJL &A- )hc 'ft? x t Lcj[ o yA,CX^~ fA^ftxd &f V(wy^'(Jh^MdcIt <^&A> aLAAf_^`(yv~c/ Cj^a^cJ A/Y pffLy( I/ua.Aj/(JdcAi^c/tj lo&y&A I-OaAJ ^cMjs/ !e> lt&L/tdyo^ / 4ocy^ UctXtAAJ fitk~ UC 107955