The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2023
Filed:
Jul. 24, 2018
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09J 175/08 (2006.01); C09J 7/10 (2018.01); C09J 7/35 (2018.01); C08G 18/12 (2006.01); C08G 18/48 (2006.01); C08G 18/32 (2006.01); C08G 18/76 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 37/10 (2006.01);
U.S. Cl.
CPC ...
C09J 175/08 (2013.01); B32B 5/024 (2013.01); B32B 5/026 (2013.01); B32B 7/12 (2013.01); B32B 37/10 (2013.01); C08G 18/12 (2013.01); C08G 18/3206 (2013.01); C08G 18/4808 (2013.01); C08G 18/4845 (2013.01); C08G 18/7657 (2013.01); C09J 7/10 (2018.01); C09J 7/35 (2018.01); B32B 2309/12 (2013.01); C08G 2170/20 (2013.01); C09J 2475/00 (2013.01);
Abstract
Disclosed is a polyurethane hot-melt adhesive including: a thermoplastic polyurethane that is a reactant of a raw material including a polymer polyol, a polyisocyanate, and a chain extender, wherein X−Y≥15, where X represents a temperature (° C.) at which the polyurethane hot-melt adhesive has a melt viscosity of 2.0×10Pa·s, and Y represents a temperature at which the polyurethane hot-melt adhesive has a melt viscosity of 1.0×10Pa·s, and the polyurethane hot-melt adhesive has a 100% modulus of 2.5 MPa or more.