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:
Jul. 13, 1993
Filed:
Mar. 31, 1992
Applicant:
Inventors:
Dieter Freitag, Krefeld, DE;
Uwe Westeppe, Mettmann, DE;
Claus H Wulff, Krefeld, DE;
Karl-Herbert Fritsch, Bergisch-Gladbach, DE;
Carl Casser, Bonn, DE;
Gunther Weymans, Leverkusen, DE;
Lutz Schrader, Krefeld, DE;
Werner Waldenrath, Cologne, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen Bayerwerk, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528196 ; 428412 ; 521180 ; 528198 ; 528202 ; 528204 ;
Abstract
Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,