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1. (WO2005105437) MULTI-LAYER STRUCTURE AND PROCESS FOR PRODUCTION THEREOF

Pub. No.:    WO/2005/105437    International Application No.:    PCT/JP2005/008018
Publication Date: Nov 10, 2005 International Filing Date: Apr 27, 2005
IPC: B32B 1/02
B32B 27/32
C08L 23/26
C08L 101/00
Applicants: KURARAY CO., LTD.
株式会社クラレ
HAYASHI, Nahoto
林 七歩才
SHINDOME, Hiroyuki
新留 裕之
WATANABE, Tomoyuki
渡邊 知行
KATAOKA, Naoki
片岡 直樹
Inventors: HAYASHI, Nahoto
林 七歩才
SHINDOME, Hiroyuki
新留 裕之
WATANABE, Tomoyuki
渡邊 知行
KATAOKA, Naoki
片岡 直樹
Title: MULTI-LAYER STRUCTURE AND PROCESS FOR PRODUCTION THEREOF
Abstract:
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.