GAS-BARRIER FILM, AND PROCESS FOR MANUFACTURING THE SAME

Title:

GAS-BARRIER FILM, AND PROCESS FOR MANUFACTURING THE SAME

Document Type and Number:

Japanese Patent JP2002234954

Kind Code:

A

Abstract:

To obtain a film containing no chlorine in the structure which exerts an excellent oxygen gas-barrier property at a high humidity and its laminate without subjecting to a high temperature or a long time heat treatment as in conventional methods.

The gas-barrier film is formed of a mixture containing a polyalcohol polymer (A) and a vinyl polymer (B) containing itaconic acid as an essential constituent, and has an oxygen permeability measured at 25°C at a relative humidity of 80% of ≤100 cc/m2.24 h.atm/μm.

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Inventors:

SUKAI YUKO
YOSHIDA MITSUO
MASHITA YUKIFUMI

Application Number:

JP2001034774A

Publication Date:

August 23, 2002

Filing Date:

February 13, 2001

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Assignee:

TOYO INK MFG CO

International Classes:

B05D5/00; B32B27/30; C08J5/18; C08L5/00; C08L29/04; C08L35/00; (IPC1-7): C08J5/18; B05D5/00; B32B27/30; C08L5/00; C08L29/04; C08L35/00

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