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:
Sep. 26, 1995
Filed:
Nov. 12, 1993
Applicant:
Inventors:
Aaron D Meltzer, Pittsburgh, PA (US);
Harald Pielartzik, Pittsburgh, PA (US);
Rick Archey, Pleasant Hills, PA (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; G21F / ;
U.S. Cl.
CPC ...
523136 ; 523137 ; 524302 ; 524303 ; 524304 ; 524305 ; 524331 ; 524332 ; 524335 ; 524363 ; 524310 ; 524311 ; 560195 ;
Abstract
Esters and polyesters which contain disulfide linkages were found to be effective stabilizers of polycarbonate resin. Accordingly, a polycarbonate composition containing disulfide esters, alone or as a coadditive with a polyether is rendered more resistant to the deterioration resulting upon exposure to gamma radiation.