21 C.F.R. § 177.2280 4,4′-Isopropylidenediphenolepichlorohydrin thermosetting epoxy resins.
Title 21 - Food and Drugs
4,4′-Isopropylidenediphenol-epichlo-rohydrin thermosetting epoxy resins may be safely used as articles or components of articles intended for repeated use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, in accordance with the following prescribed conditions: (a) The basic thermosetting epoxy resin is made by reacting 4,4′-isopropylidenediphenol with epichlorohydrin. (b) The resin may contain one or more of the following optional substances provided the quantity used does not exceed that reasonably required to accomplish the intended effect: (c) In accordance with good manufacturing practice, finished articles containing the resins shall be thoroughly cleansed prior to their first use in contact with food. (d) The provisions of this section are not applicable to 4,4′-isopropylidenedi-phenol-epichlorohydrin resins listed in other sections of parts 174, 175, 176, 177, 178 and 179 of this chapter. [42 FR 14572, Mar. 15, 1977; 49 FR 5748, Feb. 15, 1984]
Title 21: Food and Drugs
PART 177—INDIRECT FOOD ADDITIVES: POLYMERS
Subpart C—Substances for Use Only as Components of Articles Intended for Repeated Use
§ 177.2280 4,4′-Isopropylidenediphenolepichlorohydrin thermosetting epoxy resins.
------------------------------------------------------------------------ ------------------------------------------------------------------------Allyl glycidyl ether...................... As curing system additive.Di- and tri-glycidyl ester mixture As modifier at levels not to resulting from the reaction of exceed equal parts by epichlorohydrin with mixed dimers and weight of the 4,4[prime]- trimers of unsaturated C18 monobasic isopropylidenediphenol- fatty acids derived from animal and epichlorohydrin basic resin vegetable fats and oils. and limited to use in contact with alcoholic beverages containing not more than 8 percent of alcohol.1,2-Epoxy-3-phenoxypropane................ As curing system additive.Glyoxal................................... Do.4,4[prime]-Isopropylidenediphenol......... Do.4,4[prime]-Methylenedianiline............. Do.m-Phenylenediamine........................ Do.Tetrahydrophthalic anhydride.............. Do.------------------------------------------------------------------------
