238 Subpart a [Reserved] Subpart B—Substances For

§ 177.1010 21 CFR Ch. I (4–1–11 Edition)

177.1637 Poly(oxy-1,2- 177.2800 Textiles and textile fibers. ethanediyloxycarbonyl-2,6- 177.2910 Ultra-filtration membranes. naphthalenediylcarbonyl) resins. AUTHORITY: 21 U.S.C. 321, 342, 348, 379e. 177.1640 Polystyrene and rubber-modified polystyrene. SOURCE: 42 FR 14572, Mar. 15, 1977, unless 177.1650 Polysulfide polymer-polyepoxy res- otherwise noted. ins. 177.1655 Polysulfone resins. EDITORIAL NOTE: Nomenclature changes to 177.1660 Poly (tetramethylene part 177 appear at 61 FR 14482, Apr. 2, 1996, 66 terephthalate). FR 56035, Nov. 6, 2001, 66 FR 66742, Dec. 27, 177.1670 Polyvinyl alcohol film. 2001, 68 FR 15355, Mar. 31, 2003, and 70 FR 177.1680 Polyurethane resins. 72074, Dec. 1, 2005. 177.1810 Styrene block polymers. 177.1820 Styrene-maleic anhydride copoly- Subpart A [Reserved] mers. 177.1830 Styrene-methyl methacrylate copolymers. Subpart B—Substances for Use as 177.1850 Textryls. Basic Components of Single 177.1900 Urea-formaldehyde resins in molded and Repeated Use Food Con- articles. 177.1950 Vinyl chloride-ethylene copoly- tact Surfaces mers. 177.1960 Vinyl chloride-hexene-1 copoly- § 177.1010 Acrylic and modified acrylic mers. plastics, semirigid and rigid. 177.1970 Vinyl chloride-lauryl vinyl ether Semirigid and rigid acrylic and modi- copolymers. fied acrylic plastics may be safely used 177.1980 Vinyl chloride-propylene copoly- as articles intended for use in contact mers. with food, in accordance with the fol- 177.1990 Vinylidene chloride/methyl acrylate copolymers. lowing prescribed conditions. The 177.2000 Vinylidene chloride/methyl acry- acrylic and modified acrylic polymers late/methyl methacrylate polymers. or plastics described in this section also may be safely used as components Subpart C—Substances for Use Only as of articles intended for use in contact Components of Articles Intended for with food. Repeated Use (a) The optional substances that may be used in the formulation of the 177.2210 Ethylene polymer, chlorosulfonated. semirigid and rigid acrylic and modi- 177.2250 Filters, microporous polymeric. fied acrylic plastics, or in the formula- 177.2260 Filters, resin-bonded. tion of acrylic and modified acrylic 177.2280 4,4′-Isopropylidenediphenol- components of articles, include sub- epichlorohydrin thermosetting epoxy stances generally recognized as safe in resins. food, substances used in accordance 177.2355 Mineral reinforced nylon resins. with a prior sanction or approval, sub- 177.2400 Perfluorocarbon cured elastomers. 177.2410 Phenolic resins in molded articles. stances permitted for use in such plas- 177.2415 Poly(aryletherketone) resins. tics by regulations in parts 170 through 177.2420 Polyester resins, cross-linked. 189 of this chapter, and substances 177.2430 Polyether resins, chlorinated. identified in this paragraph. At least 50 177.2440 Polyethersulfone resins. weight-percent of the polymer content 177.2450 Polyamide-imide resins. of the acrylic and modified acrylic ma- 177.2460 Poly(2,6-dimethyl-1,4-phenylene) terials used as finished articles or as oxide resins. components of articles shall consist of 177.2465 Polymethylmethacrylate/poly(tri methoxysilylpropyl) methacrylate copolymer units derived from one or polymers. more of the acrylic or methacrylic 177.2470 Polyoxymethylene copolymer. monomers listed in paragraph (a)(1) of 177.2480 Polyoxymethylene homopolymer. this section. 177.2490 Polyphenylene sulfide resins. (1) Homopolymers and copolymers of 177.2500 Polyphenylene sulfone resins. the following monomers: 177.2510 Polyvinylidene fluoride resins. 177.2550 Reverse osmosis membranes. n-Butyl acrylate. 177.2600 Rubber articles intended for re- n-Butyl methacrylate. peated use. Ethyl acrylate. 177.2710 Styrene-divinylbenzene resins, 2-Ethylhexyl acrylate. cross-linked. Ethyl methacrylate.

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