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:
Nov. 21, 2006
Filed:
May. 28, 2004
Applicants:
Dibakar Dhara, Bangalore, IN;
Abbas Alli G. Shaikh, Bangalore, IN;
Gautam Chatterjee, Bangalore, IN;
C. Seetharaman, Bangalore, IN;
Inventors:
Dibakar Dhara, Bangalore, IN;
Abbas Alli G. Shaikh, Bangalore, IN;
Gautam Chatterjee, Bangalore, IN;
C. Seetharaman, Bangalore, IN;
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosure provides high quality, low yellowness index copolycarbonates comprising structural units derived from at least one aliphatic diol, at least an aromatic dihydroxy compound and a diaryl carbonate. Also disclosed herein is a method of making such copolycarbonates in presence of one or more catalysts.