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. 01, 1992
Filed:
Apr. 23, 1990
Applicant:
Inventors:
Horst Bruggemann, Cologne, DE;
Dieter Freitag, Krefeld, DE;
Lothar Meier, Sprockhoevel, DE;
Christian Lindner, Cologne, DE;
Hans-Eberhard Braese, Cologne, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525 85 ; 525 80 ; 525 83 ; 525222 ;
Abstract
The invention relates to thermoplastic molding compositions of PVC and (ter)polymers which can optionally be grafted on to a resin and are suitable for the production of optical discs by virtue of their extremely low double refraction.