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:
Nov. 11, 1980
Filed:
Apr. 23, 1979
Applicant:
Inventors:
Alfons Dorlars, Leverkusen, DE;
Otto Neuner, Bergisch-Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
542458 ; 25230122 ; 542462 ;
Abstract
The subject matter are triazolyl-stilbenes of the formula ##STR1## wherein R.sub.1 represents an optionally substituted styryl, biphenylyl or naphthyl radical, R.sub.2 represents hydrogen, halogen, or an alkyl or phenyl radical and R.sub.3 represents nitrile, carboxyl or carboxylic acid ester, as well as their preparation and their use as optical brighteners.