GAS BARRIER LAYER FORMING COMPOSITION, GAS BARRIER FILM, PACKAGING FILM, AND PACKAGING BAG USING SAME, AND, GAS BARRIER FILM PRODUCTION METHOD, PACKAGING FILM PRODUCTION METHOD, AND PACKAGING BAG PRODUCTION METHOD

Title:

Document Type and Number:

WIPO Patent Application WO/2022/102308

Kind Code:

A1

Abstract:

This gas barrier layer forming composition includes a solid component containing a polyurethane resin (A), a water-soluble polymer (B), and a hardener (C). The polyurethane resin (A) contains the product of a reaction between an acid group-containing polyurethane resin having an acid group, and a polyamine compound having an amino group. The content percentage of the polyurethane resin (A) in the solid component is between 45% by mass and 75% by mass inclusive, the content percentage of the water-soluble polymer (B) in the solid component is between 20% by mass and 35% by mass inclusive, and the content percentage of an inorganic layered mineral (D) in the solid component is less than 2% by mass.

Inventors:

TANAKA AYUMI (JP)
NISHIKAWA TAKESHI (JP)
FUKUGAMI MIKI (JP)

Application Number:

PCT/JP2021/037398

Publication Date:

May 19, 2022

Filing Date:

October 08, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOPPAN INC (JP)

International Classes:

B32B9/00; B32B9/04; B32B27/26; B32B27/40; B65D65/40; C08K5/54; C08K7/00; C08L29/04; C08L75/04; C08L101/14; C09D129/02; C09D129/04; C09D175/04

Domestic Patent References:

WO2017217474A1	2017-12-21
WO2020116544A1	2020-06-11
WO2016171171A1	2016-10-27

Foreign References:

JP2020164559A	2020-10-08
JP2009269218A	2009-11-19
JP2020143247A	2020-09-10
JP2017222151A	2017-12-21
JP2019195936A	2019-11-14
JP2017071693A	2017-04-13

Other References: