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:
Jun. 18, 2024
Filed:
Nov. 13, 2019
Applicant:
Toyobo Co., Ltd., Osaka, JP;
Inventors:
Hiroki Okajima, Shiga, JP;
Katsuya Shimeno, Shiga, JP;
Assignee:
TOYOBO MC CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/76 (2006.01); C08G 18/44 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C09J 175/04 (2006.01);
U.S. Cl.
CPC ...
C08G 18/7657 (2013.01); C08G 18/44 (2013.01); C08G 18/73 (2013.01); C08G 18/753 (2013.01); C09J 175/04 (2013.01);
Abstract
Disclosed herein is a polyurethane resin containing, as copolymerization components, a polycarbonate polyol (A), an organic diisocyanate (B) and a chain extender (C), wherein the polycarbonate polyol (A) contains a specific structure in an amount of 60 mol % or more and a glass transition temperature of the polyurethane resin is 50° C. or higher. The polyurethane resin has excellent heat resistance and satisfactory adhesive property to various substrates, and is usable as an adhesive composition.