| 摘要 |
A resin composition comprises a copolymer (A) comprising ethylene as a major component produced with a single-site catalyst, and an ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60 mol. % and a degree of hydrolysis of 95% or above, the resin composition satisfying the equation (1):A preferred resin composition comprises a copolymer (A) which has a density of 0.90-0.94 g/cm<3 >and the resin composition further comprises a carboxylic acid-modified polyolefin (C) and satisfies the equations (2) and (3):wherein X={weight of (C)}/{total weight of (A) and (B)}.Another preferred resin composition comprises a copolymer (A) which has a density of 0.85-0.90 g/cm<3>, and which satisfies the equation (5):The resin composition has superior melt moldability, gas barrier properties, flexural fatigue resistance, and impact resistance. It can be used in the preparation of a multilayered structure to impart a good appearance, delamination resistance, transparency, impact resistance, and gas barrier properties to the structure.
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