Title:
GAS BARRIER FILM AND GAS BARRIER LAMINATE
Document Type and Number:
Japanese Patent JP2015208923
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gas barrier film and a gas barrier laminate having excellent gas barrier property in a high humidity environment and sufficient lamination strength as a packaging material.SOLUTION: The gas barrier film includes a substrate film made of a plastic material and a gas barrier layer that is formed on at least one surface of the substrate film and comprises an aqueous polyurethane resin (A) containing a polyurethane resin having an acid group and a polyamide compound, an aqueous polymer (B), and an inorganic laminar mineral (C) as essential structural components. The surface of the substrate film where the gas barrier layer is disposed has a three-dimensional surface roughness (arithmetic average) Sa of 50 nm or more.
Inventors:
HOSHI SAYAKA
KAMINAGA JUNICHI
OMURA YUKI
KAMINAGA JUNICHI
OMURA YUKI
Application Number:
JP2014091987A
Publication Date:
November 24, 2015
Filing Date:
April 25, 2014
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B32B27/40; B65D81/24; C08J7/04; C08K3/00; C08L75/04; C08L101/14
Domestic Patent References:
| JPH09111017A | 1997-04-28 | |||
| JP2006159801A | 2006-06-22 | |||
| JP2002037908A | 2002-02-06 |
Foreign References:
| WO2013129520A1 | 2013-09-06 |
Attorney, Agent or Firm:
Shiro Suzuki
Masatake Shiga
Tadashi Takahashi
Shunsuke Fushimi
Masatake Shiga
Tadashi Takahashi
Shunsuke Fushimi
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