发明名称 Multilayered structure
摘要 The present invention provides a multilayered structure where an A layer made of an ethylene-vinyl alcohol copolymer resin (A) and a C layer made of a polypropylene resin (C) are laminated via a B layer made of an adhesive resin (B). The ethylene content of the ethylene-vinyl alcohol copolymer resin (A) is 20 to 60 mol %, and the saponification degree of the resin (A) is at least 90%. The melt flow rate (MFR) of the polypropylene resin (C) at 230° C. under a load of 2160 g is in the range from 0.1 to 100 g/10 min, and the stereoregularity index [M5] of the polypropylene resin (C) is at least 0.950. Such a multilayered structure has excellent gas barrier properties and moldability.
申请公布号 US6503588(B1) 申请公布日期 2003.01.07
申请号 US20000589805 申请日期 2000.06.09
申请人 KURARAY CO., LTD. 发明人 HAYASHI NAHOTO;SHIMO HIROYUKI;NEMOTO KAORU;NEGISHI KAZUHIKO
分类号 B32B27/28;B32B27/30;B32B27/32;(IPC1-7):B32B1/02;B65D1/28 主分类号 B32B27/28
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