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U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications

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FCN No. 1116

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Food Contact Substance:  A copolymer of tetrafluoroethylene (CAS Reg. No. 116-14-3) and trifluoromethyl trifluorovinyl ether (CAS Reg. No. 1187-93-5), and optionally employing a halogenated alkene.
Notifier:  E.I. du Pont de Nemours and Company
Manufacturer:  E.I. du Pont de Nemours and Company
Intended Use:  For repeat-use in the fabrication of molded parts, such as o-rings, sanitary seals, butterfly valve seats, weir diaphragms, and heat exchanger gaskets.
Effective Date:  11/24/2011
Limitations/Specifications:  Articles containing the FCS will be used in contact with all food types under Conditions of Use A through H and J. The FCS may contain food-contact substances that are otherwise cleared for the intended uses, subject to any limitations on use of the adjuvant substances. The uncured perfluoroelastomer shall be compounded with no more than 4 parts per hundred of rubber (phr) of triallyl isocyanurate and 2 phr of 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane or 2,5-dimethyl-2,5-di(tert-butylperoxy)hexyne-3.
Environmental Impact Decisions:  Environmental Decisions Site