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:
May. 01, 1979
Filed:
Jul. 25, 1978
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
260860 ;
Abstract
The present invention is concerned with mixtures of branched polyaryl-sulphone and aromatic polycarbonates having Mw in excess of about 60,000. These mixtures are particularly suitable for the production of extruded film although the polycarbonate itself is of too high a molecular weight to be conveniently extruded by itself. These films display superior stress-cracking properties and resistance to unsaturated polyester resins compared to similar blends with lower molecular weight polycarbonates.