Title:
ポリプロピレン系樹脂多層フィルム及びそれを用いた包装体
Document Type and Number:
Japanese Patent JP6984593
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing a polypropylene resin multilayer film having both a high heat seal strength, and thereby being highly suitable for automated packaging, and fusion sealing properties, and therefore, being applicable in a wide range of packaging fields. The polypropylene resin multilayer film has: a base layer (A) mainly containing a polypropylene resin; a surface layer (B) provided on one surface of the base layer (A) and mainly containing a polypropylene resin composition comprising at least one copolymer selected from the group consisting of propylene-ethylene-butene-1 copolymers, propylene-butene-1 copolymers, and propylene-ethylene copolymers; and a seal layer (C) provided on the reverse surface of the surface layer (B) and mainly containing a polypropylene resin composition comprising at least one polymer selected from the group consisting of propylene-ethylene-butene-1 copolymers, propylene-butene-1 copolymers, and propylene-ethylene copolymers.
Inventors:
Toru Imai
Koji Yamada
Koichi Sugimori
Koji Yamada
Koichi Sugimori
Application Number:
JP2018509307A
Publication Date:
December 22, 2021
Filing Date:
March 27, 2017
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
B32B27/32; B65D65/40
Domestic Patent References:
| JP2005305998A | ||||
| JP2003225979A | ||||
| JP2003170554A | ||||
| JP2007283697A | ||||
| JP2007176056A |