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:
Aug. 24, 1982
Filed:
Apr. 16, 1981
Kurt Burdeska, Basel, CH;
Guglielmo Kabas, Aesch, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
6-Styrylquinoxalines of the formula ##STR1## in which R and R.sub.1 independently of one another are hydrogen, alkyl, aryl or aryloxy which is unsubstituted or substituted by non-chromophoric substituents, alkoxy, alkoxyalkoxy or phenylthio, R.sub.2 is hydrogen or alkyl and R.sub.3 is cyano or a group of the formula ##STR2## in which R.sub.4 is alkoxy, alkoxyalkoxy, acyloxyalkoxy, ##STR3## These new compounds are suitable for the fluorescent brightening of organic materials of high molecular weight, in particular for brightening polyester textiles and polyester spinning compositions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile