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:
Feb. 28, 1978
Filed:
Nov. 06, 1974
Applicant:
Inventor:
Thornton Ross Calkins, Pittsfield, MA (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08R / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ;
Abstract
An unpigmented polycarbonate composition stabilized against heat degradation by employing in admixture therewith a minor amount of a phosphite which may be either a diaryl hydrogen phosphite, a dialkyl hydrogen phosphite or an alkyl aryl hydrogen phosphite or mixtures thereof. The composition may also have included with it particular epoxy compounds.