Title:
GAS BARRIER FILM AND PACKAGING MATERIAL USING THE SAME
Document Type and Number:
Japanese Patent JP2020097157
Kind Code:
A
Abstract:
To provide a gas barrier film capable of keeping a high barrier property without humidity dependence even under high humidity and having excellent adhesion with a base material, wherein a gas barrier property of the gas barrier film is not deteriorated without causing cracks even when the gas barrier film is stretched/contracted.SOLUTION: In the gas barrier film, scale-like silica, in which a plurality of primary particles of flake-like silica are laminated, and a gas barrier coat layer, which includes at least water-dispersible olefin-based polymer, are laminated on at least one surface of a thermoplastic resin base material film. A compounding ratio of the scale-like silica and the water dispersible olefin-based polymer in the solid content weight ratio is as follows: the olefin-based polymer is 90-10 wt.% based on 10-90 wt.% of the scale-like silica.SELECTED DRAWING: None
Inventors:
ISHII RIKA
Application Number:
JP2018236250A
Publication Date:
June 25, 2020
Filing Date:
December 18, 2018
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B32B27/18; B32B27/00; B65D65/40; B65D65/42