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.

Date of Patent:
Aug. 25, 1992

Filed:

Feb. 11, 1991
Applicant:
Inventors:

Daniel J Brunelle, Scotia, NY (US);

David K Bonauto, New York, NY (US);

Assignee:

General Electric Company, Schenactady, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528371 ; 25218223 ; 25218229 ; 528370 ;
Abstract

The thermal stability of cyclic polycarbonate oligomers may be increased by reacting the oligomers with an effective amount of organic carboxylic or sulfonic acids.


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Brunelle, Daniel. (1992). Stabilization of cyclic polycarbonates with organic carboxylic or (U.S. Patent No. 5142024). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5142024

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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