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:
Oct. 28, 2025
Filed:
Sep. 10, 2020
Mitsubishi Chemical Corporation, Tokyo, JP;
Yoko Tamura, Tokyo, JP;
Tadahiro Ozawa, Tokyo, JP;
Yoshihiro Kamon, Tokyo, JP;
Takafumi Asai, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A polyester resin including: structural unit (A) represented by a specific formula; structural unit (B) derived from an aliphatic diol having 3 to 8 carbon atoms (provided that the structural unit (A) is excluded); and at least one structural unit (C) selected from the group consisting of structural unit (c1) derived from a trivalent or higher-valent acid component and structural unit (c2) derived from a trihydric or higher-hydric alcohol component, the polyester resin including the structural unit (B) in an amount of 20 molar parts or more with respect to 100 molar parts of all the structural units derived from acid components.