Title:
OXYGEN-ABSORBING MULTILAYER FILM, PACKAGING MATERIAL MADE OF SAME AND PACKAGING CONTAINER
Document Type and Number:
WIPO Patent Application WO/2006/070677
Kind Code:
A1
Abstract:
Disclosed is an oxygen-absorbing multilayer film which exhibits high oxygen absorbability without being added with a transition metal salt which is conventionally added as a catalyst for enhancing oxygen absorption. This oxygen-absorbing multilayer film does not cause any odor problems even after it absorbs oxygen. Also disclosed are a packaging material made of this multilayer film, and a packaging container obtained by molding such a packaging material. Specifically disclosed is an oxygen-absorbing multilayer film having a thickness of less than 250 μm wherein a gas barrier material layer, an oxygen absorbent layer, and a sealing material layer are sequentially arranged in this order. This oxygen-absorbing multilayer film is characterized in that the oxygen absorbent constituting the oxygen absorbent layer mainly contains a cyclized product of a conjugated diene polymer. Also specifically disclosed are a packaging material made of this multilayer film, and a packaging container obtained by molding such a packaging material.
Inventors:
KITAHARA SHIZUO (JP)
Application Number:
PCT/JP2005/023562
Publication Date:
July 06, 2006
Filing Date:
December 22, 2005
Export Citation:
Assignee:
ZEON CORP (JP)
KITAHARA SHIZUO (JP)
KITAHARA SHIZUO (JP)
International Classes:
B32B27/00; B32B25/16; B32B27/18; B65D30/02; B65D65/40; B65D81/26; C08F8/48
Domestic Patent References:
WO2004018556A1 | 2004-03-04 | |||
WO2005053837A1 | 2005-06-16 |
Foreign References:
JP2003012944A | 2003-01-15 | |||
JP2003253131A | 2003-09-10 | |||
JP2002523311A | 2002-07-30 | |||
JP2001507045A | 2001-05-29 | |||
JP2001106920A | 2001-04-17 | |||
JP2002146217A | 2002-05-22 | |||
JP2003071992A | 2003-03-12 | |||
JP2003504042A | 2003-02-04 | |||
JPH08502306A | 1996-03-12 | |||
JP2005313145A | 2005-11-10 |
Attorney, Agent or Firm:
Yamaguchi, Iwao (Shinagawa-ku Tokyo, 22, JP)
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