[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: 21CFR178.3850]
[Page 441]
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
Subpart D Certain Adjuvants and Production Aids
Sec. 178.3850 Reinforced wax.
Reinforced wax may be safely used as an article or component of
articles intended for use in producing, manufacturing, packing,
processing, transporting, or holding food subject to the provisions of
this section.
(a) Reinforced wax consists of petroleum wax to which have been
added certain optional substances required in its production, or added
to impart desired physical or technical properties.
(b) The quantity of any optional adjuvant substance employed in the
production of or added to reinforced wax does not exceed the amount
reasonably required to accomplish the intended physical or technical
effect or any limitation provided in this section.
(c) Any substance employed in the production of reinforced wax,
including any optional substance, that is the subject of a regulation in
parts 174, 175, 176, 177, 178 and Sec. 179.45 of this chapter, conforms
with any specification in such regulation.
(d) The substances and optional adjuvant substances employed in the
production of or added to reinforced wax include:
(1) Substances generally recognized as safe in food.
(2) Substances subject to prior sanction for use in reinforced wax
and used in accordance with such sanction or approval.
(3) Substances identified in this subparagraph and subject to any
limitations provided therein:
------------------------------------------------------------------------
List of substances Limitations
------------------------------------------------------------------------
Copolymer of isobutylene modified with
isoprene.
Petroleum wax, Type I and Type II.........
Polyethylene..............................
Rosins and rosin derivatives as provided
in Sec. 178.3870.
Synthetic wax polymer as described in Sec. Not to exceed 5 percent by
176.170(a)(5) of this chapter. weight of the petroleum
wax.
------------------------------------------------------------------------
(e) Reinforced wax conforming with the specifications in this
paragraph is used as provided in paragraph (e)(2) of this section.
(1) The chloroform-soluble portion of the water extract obtained by
exposing reinforced wax to demineralized water at 70 [deg]F for 48 hours
shall not exceed 0.5 milligram per square inch of food-contact surface.
(2) It is used as a packaging material or component of packaging
materials for cheese and cheese products.
[42 FR 14609, Mar. 15, 1977, as amended at 47 FR 1288, Jan. 12, 1982]
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