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. 15, 2025
Filed:
Aug. 05, 2019
Applicant:
Mitsui Chemicals, Inc., Tokyo, JP;
Inventors:
Tatsuya Yamashita, Ichihara, JP;
Yohei Koyama, Tokyo, JP;
Hirokazu Morita, Chiba, JP;
Kazuyuki Fukuda, Ichihara, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/73 (2006.01); C08G 18/48 (2006.01); C08L 75/00 (2006.01); C08L 75/06 (2006.01);
U.S. Cl.
CPC ...
C08L 75/00 (2013.01); C08G 18/485 (2013.01); C08G 18/4854 (2013.01); C08G 18/73 (2013.01); C08L 75/06 (2013.01); C08L 2201/54 (2013.01); C08L 2201/56 (2013.01);
Abstract
A polycarbodiimide composition is obtained by subjecting a reaction product of a straight-chain aliphatic diisocyanate and alcohols to carbodiimidization, and the alcohols include a polyol and a monool; in the alcohols, a mole ratio (hydroxyl group derived from polyol/hydroxyl group derived from monool) of the amount of hydroxyl groups derived from the polyol to the amount of hydroxyl groups derived from the monool is below 2.0; and a carbodiimide equivalent of the polycarbodiimide composition is 300 g/mol or more and below 550 g/mol.