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:
Jun. 09, 1992
Filed:
Dec. 03, 1990
Harald Walter, Basel, CH;
Rudolf Hurter, Basel, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
A compound of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are each C.sub.1 -C.sub.10 alkyl which is unsubstituted or substituted by hydroxyl, C.sub.1 -C.sub.4 alkoxy, phenyl, sulfo, sulfato, thiosulfato, cyano or halogen, C.sub.5 -C.sub.7 cycloalkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkoxy, or phenyl or naphthyl which both are unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, benzoylamino, halogen or sulfo, R.sub.3 is hydrogen, halogen, C.sub.1 -C.sub.10 alkyl which is unsubstituted or substituted by hydroxyl, C.sub.1 -C.sub.4 alkoxy, phenyl, sulfo, sulfato, thiosulfato, cyano or halogen, C.sub.1 -C.sub.10 alkoxy which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkoxy, or phenoxy which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, benzoylamino, halogen or sulfo, X is --CO-- or --SO.sub.2 --, n is the number 1,2,3,4,5 or 6 and M is a cation.