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US 2020/0269558 A1Published application
Ethylene-vinyl alcohol copolymer composition, melt-forming material, multilayer structure, and multilayer pipe
AssigneeMitsubishi Chemical Corporation
InventorsShintaro USUI, Minako IKESHITA
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Abstract
An ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) an antioxidant; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on the weight of the ethylene-vinyl alcohol copolymer composition; wherein the weight ratio (B)/(C) of the antioxidant (B) to the sorbic acid ester (C) is 500 to 1,000,000. The resulting ethylene-vinyl alcohol copolymer composition is less susceptible to coloration.
Claims5
An ethylene-vinyl alcohol copolymer composition comprising:
- (A) an ethylene-vinyl alcohol copolymer;
- (B) an antioxidant;
- and
- (C) a sorbic acid ester;
- wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on a weight of the ethylene-vinyl alcohol copolymer composition;
- wherein a weight ratio (B)/(C) of the antioxidant (B) to the sorbic acid ester (C) is 500 to 1,000,000.
3 more elements
Dependencies are inferred from the claim text.