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:
Jan. 22, 2002
Filed:
Mar. 29, 2001
Applicant:
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/400 ;
U.S. Cl.
CPC ...
C08G 6/400 ;
Abstract
A polycarbonate resin obtained by reaction of (A) a bisphenol compound having a fluorene structure, (B) a bisphenol compound having a polysiloxane structure, (C) other specific bisphenol compound and a carbonic acid ester-forming compound, wherein an amount of (A) bisphenol compound is 30 to 80% by weight to total amount of (A) bisphenol compound and (B) bisphenol compound, and an amount of (C) bisphenol compound is 1 to 80% by weight to total amount of (A) bisphenol compound, (B) bisphenol compound and (C) bisphenol compound, and an intrinsic viscosity of said polycarbonate resin is 0.2 to 1.0 dl/g.