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:
Feb. 13, 2024
Filed:
May. 13, 2021
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 63/137 (2006.01); C08G 63/127 (2006.01); C08G 63/183 (2006.01); C08G 63/83 (2006.01); C08G 63/85 (2006.01); C08G 63/87 (2006.01); C09D 11/104 (2014.01);
U.S. Cl.
CPC ...
C08G 63/137 (2013.01); C08G 63/127 (2013.01); C08G 63/183 (2013.01); C08G 63/83 (2013.01); C08G 63/85 (2013.01); C08G 63/87 (2013.01); C09D 11/104 (2013.01); C08G 2150/00 (2013.01); C08G 2170/00 (2013.01);
Abstract
A polyester resin has excellent adhesiveness and excellent grindability. The polyester resin includes a constitutional unit A derived from a carboxylic acid having a cyclic structure and containing 5 or more carboxyl groups, a constitutional unit derived from a dicarboxylic acid, and a constitutional unit derived from a polyhydric alcohol. The constitutional unit A has a content of 0.01 parts by mole or more and 45 parts by mole or less with respect to 100 parts by mole of the constitutional unit derived from a dicarboxylic acid. The hydroxyl value of the polyester resin is 6 mgKOH/g or more and 27 mgKOH/g or less.