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.

Date of Patent:
Jul. 15, 2025

Filed:

Sep. 11, 2020
Applicant:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Inventors:

Keisuke Shimokawa, Tokyo, JP;

Hidefumi Harada, Tokyo, JP;

Takehiko Isobe, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 69/00 (2006.01); C08G 64/16 (2006.01); C08G 64/30 (2006.01);
U.S. Cl.
CPC ...
C08L 69/00 (2013.01); C08G 64/16 (2013.01); C08G 64/307 (2013.01);
Abstract

The present application provides: a polycarbonate resin which has heat resistance and is able to be produced using a starting material that is derived from natural products; and a monomer compound which enables the achievement of this resin. A polycarbonate resin which includes a constituent unit represented by general formula (1); a monomer compound which enables the achievement of this resin; and a polycarbonate resin which includes a constituent unit represented by general formula (1) and a constituent unit represented by general formula (2).


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