Melamine-formaldehyde resins may be safely used as the food-contact surface of molded articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food in accordance with the following prescribed conditions:
(a) For the purpose of this section, melamine-formaldehyde resins are those produced when 1 mole of melamine is made to react with not more than 3 moles of formaldehyde in water solution.
(b) The resins may be mixed with refined woodpulp and the mixture may contain other optional adjuvant substances which may include the following:
| List of substances | Limitations |
|---|---|
| Colorants used in accordance with §178.3297 of this chapter | |
| Dioctyl phthalate | For use as lubricant. |
| Hexamethylenetetramine | For use only as polymerization reaction control agent. |
| Phthalic acid anhydride | Do. |
| Zinc stearate | For use as lubricant. |
(c) The molded melamine-formaldehyde articles in the finished form in which they are to contact food, when extracted with the solvent or solvents characterizing the type of food and under the conditions of time and temperature as determined from tables 1 and 2 of §175.300(d) of this chapter, shall yield net chloroform-soluble extractives not to exceed 0.5 milligram per square inch of food-contact surface.
[42 FR 14572, Mar. 15, 1977, as amended at 56 FR 42933, Aug. 30, 1991]
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