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. 18, 1993
Filed:
Sep. 30, 1991
Applicant:
Inventors:
Volker Serini, Krefeld, DE;
Uwe Westeppe, Mettmann, DE;
Gerd Fengler, Krefeld-Traar, DE;
Manfred Hajek, Leverkusen, DE;
Carl Casser, Koeln, DE;
Helmut Waldmann, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528201 ; 528125 ; 528171 ; 528174 ; 528196 ; 528204 ;
Abstract
Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable properties.