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. 21, 2020
Filed:
Feb. 21, 2017
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Yuusuke Nii, Ibaraki, JP;
Shun Ishikawa, Ibaraki, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/02 (2006.01); C08G 64/14 (2006.01); C08G 64/42 (2006.01); C08K 3/24 (2006.01); C08K 5/02 (2006.01);
U.S. Cl.
CPC ...
C08G 64/14 (2013.01); C08G 64/42 (2013.01); C08K 3/24 (2013.01); C08K 5/02 (2013.01);
Abstract
The purpose of the present invention is to provide a polycarbonate resin which has high fluidity and with which mold fouling such as mold deposits, etc., can be reduced. The polycarbonate resin according to the present invention has a terminal structure represented by general formula (1), and a viscosity-average molecular weight of 10,000-18,000, wherein the contained amount of low-molecular-weight carbonate compounds having a molecular weight of 1,000 or less contained in the polycarbonate resin is less than 1 mass %.