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:
Oct. 03, 1995
Filed:
Nov. 18, 1993
Applicant:
Inventors:
Luca P Fontana, Brasschaat, BE;
Randall A Reed, Mt. Vernon, IN (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528196 ; 528176 ; 528190 ; 528193 ; 528198 ; 528204 ;
Abstract
A reduced glass transition temperature copolyester-carbonate which displays non-Newtonian melt behavior was synthesized by using bisphenol-A, a dicarboxylic acid and a trisphenol. The branched copolymer was obtained by interfacial phosgenation. One of the compositions described displays a Tg of about 127.degree. C. and twice the melt flow index of a branched polycarbonate of corresponding molecular weight or intrinsic viscosity.