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:
Jun. 10, 2003
Filed:
Sep. 12, 2001
Applicant:
Inventors:
Tatsuya Kanagawa, Toyonaka, JP;
Noriyoshi Ogawa, Toyonaka, JP;
Hidekazu Nakatani, Toyonaka, JP;
Noriaki Honda, Toyonaka, JP;
Mitsuhiko Masumoto, Toyonaka, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/408 ; C08G 7/7448 ;
U.S. Cl.
CPC ...
C08G 6/408 ; C08G 7/7448 ;
Abstract
A polycarbonate resin obtainable by reaction of a carbonic acid ester-forming compound with bisphenols consisting essentially of 9,9-bis(4-hydroxy-3-methylphenyl) fluorene and a bisphenol compound(s) having a polysiloxane skeleton, an intrinsic viscosity of said polycarbonate resin being 0.2 to 2.0 dl/g.