MOISTURE-CURABLE POLYURETHANE RESIN COMPOSITION, ADHESIVE, AND LAMINATE

Title:

MOISTURE-CURABLE POLYURETHANE RESIN COMPOSITION, ADHESIVE, AND LAMINATE

Document Type and Number:

WIPO Patent Application WO/2021/054129

Kind Code:

A1

Abstract:

The problem to be solved by the present invention is to provide, using biomass-derived raw materials, a moisture-curable polyurethane resin composition which is excellent in terms of adhesion to fabric (in particular, water-repellent fabric) and film strength. The present invention provides a moisture-curable polyurethane hot-melt resin composition characterized by including a urethane prepolymer (i) having isocyanate groups which is a product of reaction between polyols (A) and a polyisocyanate (B), the polyols (A) comprising a polyester polyol (a1) obtained from a biomass-derived polybasic acid (x) and a biomass-derived glycol (y) as raw materials and other polyester polyol(s) (a2). The present invention further provides an adhesive characterized by comprising the moisture-curable polyurethane hot-melt resin composition.

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Inventors:

KOMATSUZAKI KUNIHIKO (JP)

Application Number:

PCT/JP2020/033356

Publication Date:

March 25, 2021

Filing Date:

September 03, 2020

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS (JP)

International Classes:

C08G18/30; B32B27/40; C08G18/10; C08G18/42; C09J175/06

Domestic Patent References:

WO2018173768A1	2018-09-27
WO2017111033A1	2017-06-29

Foreign References:

JP2015038162A	2015-02-26
JPH10237412A	1998-09-08
JP2011225851A	2011-11-10
JP2018095831A	2018-06-21
JP2018062642A	2018-04-19
JP2011225863A	2011-11-10
JP2009155645A	2009-07-16

Other References: