| 摘要 |
PROBLEM TO BE SOLVED: To provide a saponified ethylene-vinyl acetate copolymer composition allowing a continuous molding operation and excellent in transparency, gas barrier properties and appearances of a film therefrom, and the molded product formed from the composition. SOLUTION: A saponified ethylene-vinyl acetate copolymer composition comprises (A) a saponified ethylene-vinyl acetate copolymer (hereinafter abbreviated to EVOH) having an ethylene content of 5-60 mol.% and a saponification degree of 90 mol.% or more, (B) an alkali metal acetate salt, (C) acetic acid, and (D) water, wherein the content of the alkali metal acetate salt (B) is 20-500 ppm relative to the EVOH (A) (calculated as the alkali metal), the acetic acid (C)/the alkali metal acetate salt (B) weight ratio is 0.01-10, and the content of the water (D) is 10-140 parts by weight relative to 100 parts by weight of the EVOH (A). A molded product is manufactured by melt extruding an EVOH composition and orienting the resultant product with its water content being 5-50 wt.%. |
