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. 03, 1987
Filed:
Dec. 19, 1985
Peter Liechti, Arisdorf, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Monoazo compounds of the formula ##STR1## in which one of the two substituents R.sub.1 or R.sub.2 or both substituents are C.sub.3 -C.sub.8 -alkyl or a group of the formula ##STR2## in which R.sub.3 and R.sub.4 are independently of each other hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sub.5 is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl and the other of the two substitutents R.sub.1 or R.sub.2, when the two are not C.sub.3 -C.sub.8 -alkyl or a group of the formula (1a), is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl, and KK is the radical of a coupling component which is free of water-solubilizing groups the two described. These compounds can be used as dyes for dyeing or printing for example polyester fibre materials.