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:
May. 20, 2025
Filed:
Jul. 27, 2020
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Keisuke Shimokawa, Tokyo, JP;
Hidefumi Harada, Tokyo, JP;
Takehiko Isobe, Tokyo, JP;
Jungo Taguchi, Tokyo, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/16 (2006.01); C08L 69/00 (2006.01);
U.S. Cl.
CPC ...
C08G 64/1691 (2013.01); C08L 69/00 (2013.01); C08L 2201/02 (2013.01); C08L 2201/08 (2013.01);
Abstract
Provided is a polycarbonate resin having a structural unit (I) represented by formula (1) below: wherein Land Leach independently represent a divalent linking group selected from an alkylene group, a cycloalkylene group, an arylene group, an oxyalkylene group, an oxyarylene group, and a group formed by combining two or more of these, where one or more hydrogen atoms of the linking group are optionally further replaced with substituents, and two of the substituents are optionally bonded to each other to form a ring structure.