[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR178.3610]

[Page 407-408]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 178_INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND 
SANITIZERS--Table of Contents
 
             Subpart D_Certain Adjuvants and Production Aids
 
Sec. 178.3610  a-Methylstyrene-vinyltoluene resins, hydrogenated.

    Hydrogenated [alpha]-methylstyrene-vinyltoluene copolymer resins 
having a molar ratio of 1 [alpha]-methylstyrene to 3 vinyltoluene may be 
safely used as components of polyolefin film intended for use in contact 
with food, subject to the following provisions:
    (a) Hydrogenated [alpha]-methylstyrene-vinyltoluene copolymer resins 
have a drop-softening point of 125[deg] to 165 [deg]C and a maximum 
absorptivity of 0.17 liter per gram centimeter at 266 nanometers, as 
determined by methods titled ``Determination of Softening Point (Drop 
Method)'' and ``Determination of Unsaturation of Resin 1977,'' which are 
incorporated by reference. Copies are available from the Center for Food 
Safety and Applied Nutrition (HFS-200), Food and Drug Administration, 
5100 Paint Branch Pkwy., College Park, MD 20740, or available for 
inspection at the Office of the Federal Register, 800 North Capitol 
Street, NW., suite 700, Washington, DC 20408.

[[Page 408]]

    (b) The polyolefin film is produced from olefin polymers complying 
with Sec. 177.1520 of this chapter, and the average thickness of the 
film in the form in which it contacts food does not exceed 0.002 inch.

[42 FR 14609, Mar. 15, 1977, as amended at 47 FR 11847, Mar. 19, 1982; 
54 FR 24898, June 12, 1989]