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Title:
GAS BARRIER FILM, PACKAGING MATERIAL, AND PACKAGING BAG
Document Type and Number:
WIPO Patent Application WO/2022/220200
Kind Code:
A1
Abstract:
The present disclosure relates to a gas barrier film comprising a resin base material, a foundation layer, and a vacuum film deposition layer, in which the resin base material contains a polyolefin resin, and the foundation layer contains a polyurethane resin formed of an acid group-containing polyurethane and polyamine.

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Inventors:
NISHIKAWA TAKESHI (JP)
TANAKA AYUMI (JP)
Application Number:
PCT/JP2022/017406
Publication Date:
October 20, 2022
Filing Date:
April 08, 2022
Export Citation:
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Assignee:
TOPPAN INC (JP)
International Classes:
B32B27/32; B32B27/40; B65D65/40
Domestic Patent References:
WO2020116544A12020-06-11
Foreign References:
JP2014076609A2014-05-01
JP2015217558A2015-12-07
JP2015085546A2015-05-07
JP2020168834A2020-10-15
JP2021020392A2021-02-18
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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