Three substances were approved for use in coatings and coating layers: 1) Polymer of adipic acid with isophthalic acid, maleic anhydride, 2-methyl-1,3-propanediol, 2,2-dihydroxymethyl butanol and dimethyl-2,6-naphthalene dicarboxylate; 2) polymer of isophthalic acid, maleic anhydride, phthalic anhydride, phosphoric acid, trimethylol propane and 2- methyl-1,3-propanediol; and 3) polymer of isophthalic acid and terephthalic acid, adipic acid, trimethylol propane, 2-methyl-1,3-propanediol and ethylene glycol.
One substance was approved for use as an adhesive: Homopolymers of distillates (petroleum), C3-6, piperylene-rich (C5) and copolymers with one or more of the following: isobutylene (C4), styrene, and alpha-methylstyrenel.
For two further substances, the scope of use was extended: 1) 3-Aminopropyltriethoxysilane (CAS 919-30-2) for use in plastics, and 2) polyvinyl chloride (PVC, CAS 9002-86-2) for use in coatings and coating layers.
Chemical Watch (March 27, 2018). “China approves four food contact substances.”