MULTI-LAYER STRUCTURE AND PROCESS FOR PRODUCTION THEREOF

摘要

A multi-layer structure comprising a layer of an ethylene/vinyl alcohol copolymer (A), a layer of a carboxylic acid-modified polyolefin (B), a layer of a thermoplastic resin (C) having a solubility parameter of 11 or below, and a layer of a resin composition (E), characterized in that the resin composition (E) consists of the components (A), (B) and (C) and a thermoplastic resin (D) having at least one functional group selected from the group consisting of boron acid groups and boron-containing groups convertible into boron acid groups in the presence of water and that the layer of an ethylene/vinyl alcohol copolymer (A) and the layer of a thermoplastic resin (C) or a resin composition (E) are laminated through the layer of a carboxylic acid-modified polyolefin (B). The multi-layer structure permits effective reuse of the regrinds and is excellent in impact resistance and gas barrier properties.