On October 28, China National Center for Food Safety Risk Assessment (CFSA) solicited comments on three new resins for use in food contact materials and articles. The substances and specifications are listed below.

·1,6-Hexanedioic acid, polymer with (E)-2-butenedioic acid and tricyclodecanedimethanol (CAS No. 58891-19-3) is to be cleared for use in coatings and coating layers at a maximum use level of 18% (on a dry weight basis). The specific migration level (SML) is 0.05 mg/kg for tricyclodecanedimethanol. The use temperature for coatings and coating layers containing this substance as a raw material may not exceed 121°C and this substance may not be used in food-contact materials and articles for infant foods. In addition, these restrictions must be labeled in accordance with GB 4806.1.

·Polymer of 1,4-butanediol, 2,2-dimethyl-1,3-propanediol, 1,4-cyclohexanedicarboxylic acid and m-phthalic acid is to be cleared for use in coatings and coating layers at a maximum use level of 30% (on a dry weight basis). The SMLs are 5 mg/kg (as 1,4-butanediol); 0.05 mg/kg (2,2-dimethyl-1,3-propanediol); 5 mg/kg (1,4-cyclohexanedicarboxylic acid); and 5 mg/kg (as m-phthalic acid). The use temperature for coatings and coating layers containing this substance as a raw material may not exceed 130°C. In addition, these restrictions must be labeled in accordance with GB 4806.1.

·Polymer of butanediol-1,4, tricyclodecanedimethanol and dimethyl terephthalate (CAS No. 490017-22-6) is to be cleared for use in coatings and coating layers at a maximum use level of 59% (on the coating formula basis). The SMLs are 7.5 mg/kg (as terephthalic acid); 5 mg/kg (as 1,4-butanediol); and 0.05 mg/kg (4,8-tricyclo[5.2.1.0 2,7]decanedimethanol). The use temperature for coatings and coating layers containing this substance as a raw material may not exceed 121°C and this substance may not be used in food-contact materials and articles for infant foods. In addition, these restrictions must be labeled in accordance with GB 4806.1.

Comments are due by November 21, 2022.