[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR175.365]
[Page 195]
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
SERVICES (CONTINUED)
PART 175 INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF
Subpart C Substances for Use as Components of Coatings
Sec. 175.365 Vinylidene chloride copolymer coatings for polycarbonate
film.
Vinylidene chloride copolymer coatings identified in this section
and applied on polycarbonate film may be safely used as food-contact
surfaces, in accordance with the following prescribed conditions:
(a) The coating is applied as a continuous film over one or both
sides of a base film produced from polycarbonate resins complying with
Sec. 177.1580 of this chapter.
(b) The coatings are prepared from vinylidene chloride copolymers
produced by copolymerizing vinylidene chloride with acrylonitrile,
methyl acrylate, and acrylic acid. The finished copolymers contain at
least 50 weight-percent of polymer units derived from vinyldene
chloride.
(c) Optional adjuvant substances employed in the production of the
coatings or added thereto to impart desired properties may include
sodium dodecylbenzenesulfonate in addition to substances described in
Sec. 174.5(d) of this chapter.
(d) The coating in the finished form in which it is to contact food,
when extracted with the solvent or solvents characterizing the type of
food, and under the conditions of time and temperature characterizing
the conditions of its intended use as determined from tables 1 and 2 of
Sec. 176.170(c) of this chapter, shall yield net chloroform-soluble
extractives in each extracting solvent not to exceed 0.5 milligram per
square inch of coated surface as determined by the methods described in
Sec. 176.170(d) of this chapter. In testing the finished food-contact
articles, a separate test sample is to be used for each required
extracting solvent.
(e) Acrylonitrile copolymers identified in this section shall comply
with the provisons of Sec. 180.22 of this chapter.
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