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178.3010 Adjuvant substances used in the manufacture of foamed plastics.

Home > Regulations > Indirect food additives: Adjuvants, production aids, and sanitizers > 178.3010 Adjuvant substances used in the manufacture of foamed plastics.



[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR178.3010]

[Page 396]
 
                        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.  178.3010  Adjuvant substances used in the manufacture of foamed 
plastics.


    The following substances may be safely used as adjuvants in the 
manufacture of foamed plastics intended for use in contact with food, 
subject to any prescribed limitations:

------------------------------------------------------------------------
          List of substances                       Limitations
------------------------------------------------------------------------
Azodicarbonamide......................  For use as a blowing agent in
                                         pol yethylene complying with
                                         item 2.1 in Sec.   177.1520(c)
                                         of this chapter at a level not
                                         to exceed 5 percent by weight
                                         of finished foamed
                                         polyethylene.
1,1-Difluoroethane (CAS Reg. No. 75-37- For use as a blowing agent in
 6).                                     polystyrene.
Isopentane............................  For use as a blowing agent in
                                         polystyrene.
n-Pentane.............................   Do.
1,1,2,2-Tetra-chloroethylene..........  For use only as a blowing agent
                                         adjuvant in polystyrene at a
                                         level not to exceed 0.3 percent
                                         by weight of finished foamed
                                         polystyrene intended for use in
                                         contact with food only of the
                                         types identified in Sec.
                                         176.170(c) of this chapter,
                                         table 1, under Categories I,
                                         II, VI, and VIII.
Toluene...............................  For use only as a blowing agent
                                         adjuvant in polystyrene at a
                                         level not to exceed 0.35
                                         percent by weight of finished
                                         foamed polystyrene.
------------------------------------------------------------------------


[47 FR 22090, May 21, 1982, as amended at 58 FR 64895, Dec. 10, 1993]





Additives that reference this regulation:


Source: U.S. Code of Federal Regulations - CFR Title 21, Part 178, Section 3010


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