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Title:
MULTILAYER FILM AND CONTAINER USING THE SAME
Document Type and Number:
Japanese Patent JP2002301796
Kind Code:
A
Abstract:

To provide a multilayer film excellent in heat resistance, strength, sealability, transparency, flexibility, gas/moisture permeability and the like, and also to provide a container which sufficiently suppresses occurrence of bulging at a long time preservation of a chemical or the like, an aging reduction of a liquid content, a bag breaking or the like.

The multiplayer film comprises five layers, the first layer which is made of an intermediate/high-density linear ethylene α-olefin copolymer or aliphatic polyamide resin, the second layer which is made of a mixture of a resin containing a linear ultra-low density ethylene α-olefin copolymer as a main component and a modified polyolefin unsaturated carboxylate, the third layer which is made of a cyclic olefin copolymer, the fourth layer which is made of a mixture of a resin containing a linear ultra-low density ethylene α-olefin copolymer manufactured by using a metallocene catalyst as a main component and a modified polyolefin unsaturated carboxylate or the like, and the fifth layer which is made of an intermediate/high density linear ethylene α-olefin copolymer. The container comprises the first layer of the multilayer film as an outer layer, and the fifth layer as an inner layer.


Inventors:
Obata, Hideki
Oka, Minoru
Maesaki, Yoshiki
Tezuka, Kenji
Application Number:
JP2001000106328
Publication Date:
October 15, 2002
Filing Date:
April 04, 2001
Export Citation:
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Assignee:
OTSUKA PHARMACEUT FACTORY INC
International Classes:
B65D65/40; A61J1/10; B32B27/00; B32B27/32; B32B27/34; C08L23/06; C08L23/08; C08L23/16; C08L23/26; (IPC1-7): B32B27/32; A61J1/10; B32B27/00; B32B27/34; B65D65/40; C08L23/06; C08L23/08; C08L23/16; C08L23/26