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§175.350 乙酸乙烯酯/巴豆酸共聚物(Vinyl acetate/crotonic acid copolymer)

   2011-10-02 中國(guó)食品網(wǎng)中食網(wǎng)8100

     §175.350 Vinyl acetate/crotonic acid copolymer
       A copolymer of vinyl acetate and crotonic acid may be safely used as a coating or as a component of a coating which is the food-contact surface of polyolefin films intended for packaging food, subject to the provisions of this section.

 ?。╝) The copolymer may contain added optional substances to impart desired properties.

 ?。╞) The quantity of any optional substance does not exceed the amount reasonably required to accomplish the intended physical or technical effect nor any limitations further provided.

 ?。╟) Any optional substance that is the subject of a regulation in parts 174, 175, 176, 177, 178, and § 179.45 of this chapter conforms with any specifications in such regulation.

 ?。╠) Optional substances as provided in paragraph (a) of this section include:

 ?。?) Substances generally recognized as safe in food.

 ?。?) Substances subject to prior sanction or approval for uses with a copolymer of vinyl acetate and crotonic acid and used in accordance with such sanction or approval.

 ?。?) Substances identified in this subparagraph and subject to such limitations as are provided:

List of substances Limitations
Silica  
Japan wax  


      (e) Copolymer of vinyl acetate and crotonic acid used as a coating or as a component of a coating conforming with the specifications of paragraph (e)(1) of this section are used as provided in paragraph (e)(2) of this section.

  (1) Specifications. (i) The chloroform-soluble portion of the water extractives of the coated film obtained with distilled water at 120 °F for 24 hours does not exceed 0.5 milligram per square inch of coated surface.

 ?。╥i) The chloroform-soluble portion of the n- heptane extractives of the coated film obtained with n- heptane at 70 °F for 30 minutes does not exceed 0.5 milligram per square inch of coated surface.

 ?。?) Conditions of use. The copolymer of vinyl acetate and crotonic acid is used as a coating or as a component of a coating for polyolefin films for packaging bakery products and confectionery.

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