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Title:
OXYGEN-ABSORBING MULTILAYER FILM, PACKAGING MATERIAL MADE OF SAME AND PACKAGING CONTAINER
Document Type and Number:
WIPO Patent Application WO/2006/070679
Kind Code:
A1
Abstract:
Disclosed is an oxygen-absorbing multilayer film which exhibits excellent 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 is excellent in physical characteristics 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 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 layer contains less than 50% by weight of a cyclized product of a conjugated diene polymer relative to the total components of the oxygen absorbent layer. Also specifically disclosed are a packaging material made of this multilayer film, and a packaging container obtained by molding such a packaging material.

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Inventors:
KITAHARA SHIZUO (JP)
Application Number:
PCT/JP2005/023564
Publication Date:
July 06, 2006
Filing Date:
December 22, 2005
Export Citation:
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Assignee:
ZEON CORP (JP)
KITAHARA SHIZUO (JP)
International Classes:
B32B27/18; B32B27/32; B65D30/02; B65D65/40; B65D81/26; C08F8/48
Domestic Patent References:
WO2004018556A12004-03-04
WO2005053837A12005-06-16
Foreign References:
JP2003012944A2003-01-15
JP2003253131A2003-09-10
JP2002523311A2002-07-30
JP2001507045A2001-05-29
JP2001106920A2001-04-17
JP2002146217A2002-05-22
JP2003071992A2003-03-12
JP2003504042A2003-02-04
JPH08502306A1996-03-12
JP2005313145A2005-11-10
Attorney, Agent or Firm:
Yamaguchi, Iwao (Shinagawa-ku Tokyo, 22, JP)
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