Patent ID: 8563108

Claim:
A saponified ethylene-vinyl ester-based copolymer resin (EVOH resin) composition comprising (A) a saponified ethylene-vinyl ester-based copolymer resin; (B) an alkaline earth metal; (C) an alkali metal; and (D) a carboxylic acid having from 2 to 4 carbon atoms, wherein the composition satisfies the following requirements (α), (β), and (γ): (α) a content of the alkaline earth metal (B) is more than 10 ppm but not more than 50 ppm relative to the saponified ethylene-vinyl ester-based copolymer resin (A); (β) a content ratio (C/B) of the alkali metal (C) to the alkaline earth metal (B) ranges from 0.001 to 0.5; and (γ) a content ratio (D/B) of the carboxylic acid (D) to the alkaline earth metal (B) ranges from 5 to 30.