FDA食品添加剂使用卫生 177 INDIRECT FOOD ADDITIVES------ POLYMERS
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F90A62A9E02741CBBF02F04500D51B88 |
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文件大小(MB)： |
1.75 |
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页数： |
284 |
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文件格式： |
doc |
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日期： |
2007-8-3 |
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文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
[Code of Federal Regulations] [Title 21, Volume 3] [Revised as of April 1, 2006] [CITE: 21CFR177] ,TITLE 21--FOOD AND DRUGS,CHAPTER I--FOOD AND DRUG ADMINISTRATION,DEPARTMENT OF HEALTH AND HUMAN SERVICES,SUBCHAPTER B--FOOD FOR HUMAN CONSUMPTION (CONTINUED), PART 177 INDIRECT FOOD ADDITIVES: POLYMERS Subpart A [Reserved] Subpart B--Substances for Use as Basic Components of Single and Repeated Use Food Contact Surfaces Sec. 177.1010 Acrylic and modified acrylic plastics, semirigid and rigid. ,Semirigid and rigid acrylic and modified acrylic plastics may be safely used as articles intended for use in contact with food, in accordance with the following prescribed conditions. The acrylic and modified acrylic polymers or plastics described in this section also may be safely used as components of articles intended for use in contact with food.,(a) The optional substances that may be used in the formulation of the semirigid and rigid acrylic and modified acrylic plastics, or in the formulation of acrylic and modified acrylic components of articles, include substances generally recognized as safe in food, substances used in accordance with a prior sanction or approval, substances permitted for use in such plastics by regulations in parts 170 through 189 of this chapter, and substances identified in this paragraph. At least 50 weight-percent of the polymer content of the acrylic and modified acrylic materials used as finished articles or as components of articles shall consist of polymer units derived from one or more of the acrylic or methacrylic monomers listed in paragraph (a)(1) of this section.,(1) Homopolymers and copolymers of the following monomers:,n-Butyl acrylate.,n-Butyl methacrylate.,Ethyl acrylate.,2-Ethylhexyl acrylate.,Ethyl methacrylate.,Methyl acrylate.,Methyl methacrylate.,(2) Copolymers produced by copolymerizing one or more of the monomers listed in paragraph (a)(1) of this section with one or more of the following monomers:,Acrylonitrile.,Methacrylonitrile.,[alpha]-Methylstyrene.,Styrene.,Vinyl chloride.,Vinylidene chloride.,(3) Polymers identified in paragraphs (a)(1) and (2) of this section containing no more than 5 weight-percent of total polymer units derived by copolymerization with one or more of the monomers listed in paragraph (a)(3)(i) and (ii) of this section. Monomers listed in paragraph (a)(3)(ii) of this section are limited to use only in plastic articles intended for repeated use in contact with food.,(i) List of minor monomers:,Acrylamide.,Acrylic acid,1,3-Butylene glycol dimethacrylate.,1,4-Butylene glycol dimethacrylate.,Diethylene glycol dimethacrylate.,Diproplylene glycol dimethacrylate.,Divinylbenzene.,Ethylene glycol dimethacrylate.,Itaconic acid.,Methacrylic acid.,N-Methylolacrylamide.,N-Methylolmethacrylamide.,4-Methyl-1,4-pentanediol dimethacrylate.,Propylene glycol dimethacrylate.,Trivinylbenzene.,(ii) List of minor monomers limited to use only in plastic articles intended for repeated use in contact with food:,Allyl methacrylate [Chemical Abstracts Service Registry No. 96-05-9],tert-Butyl acrylate.,tert-Butylaminoethyl methacrylate.,sec-Butyl methacrylate.,tert-Butyl methacrylate.,Cyclohexyl methacrylate.,Dimethylaminoethyl methacrylate.,2-Ethylhexyl methacrylate.,Hydroxyethyl methacrylate.,Hydroxyethyl vinyl sulfide.,Hydroxypropyl methacrylate.,Isobornyl methacrylate.,Isobutyl methacrylate.,Isopropyl acrylate.,Isopropyl methacrylate.,Methacrylamide.,Methacrylamidoethylene urea.,Methacryloxyacetamidoethylethylene urea.,Methacryloxyacetic acid.,n-Propyl methacrylate.,3,5,5-Trimethylcyclohexyl methacrylate.,(4) Polymers identified in paragraphs (a)(1), (2), and (3) of this section are mixed together and/or with the following polymers, provided that no chemical reactions, other than addition reactions, occur when they are mixed:,Butadiene-acrylonitrile copolymers.,Butadiene-acrylonitrile-styrene copolymers.,Butadiene-acrylonitrile-styrene-methyl methacrylic copolymers.,Butadiene-styrene copolymers.,Butyl rubber.,Natural rubber.,Polybutadiene.,Poly (3-chloro-1,3-butadiene).,Polyester identified in 175.300(b)(3)(vii) of this chapter.,Polyvinyl chloride.,Vinyl chloride copolymers complying with 177.1980.,Vinyl chloride-vinyl acetate copolymers.,(5) Antioxidants and stabilizers identified in 175.300(b)(3)(xxx) of this chapter and the following:,Di-tert-butyl-p-cresol.,2-Hydroxy-4-methoxybenzophenone.,2-Hydroxy-4-methoxy-2-carboxybenzophenone.,3-Hydroxyphenyl benzoate.,p-Methoxyphenol.,Methyl salicylate.,Octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate (CAS Reg. No. 2082-79-3): For use only: (1) At levels not exceeding 0.2 percent b……
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