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:
Dec. 13, 1988
Filed:
Feb. 20, 1987
Applicant:
Inventors:
Bernhard Schulte, Krefeld, DE;
Werner Tischer, Dormagen, DE;
Werner Waldenrath, Cologne, DE;
Hans Kaloff, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
428220 ; 264105 ; 2642884 ; 428339 ; 524496 ; 524611 ; 252511 ;
Abstract
A polycarbonate film obtained by dispersing carbon black in a solution of thermoplastic aromatic polycarbonate, producing a cast film, and subsequently stretching the cast film, is characterized in that its elongation at break is greater than that of a corresponding unstretched similarly filled film having an identical thickness.