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:
Apr. 05, 1994
Filed:
May. 08, 1992
Jorg Dannheim, Frankfurt am Main, DE;
Werner H Russ, Florsheim am Main, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Azo compounds of the formula D.sup.o --N.dbd.N--K.sup.o, in which D.sup.o is a radical of the formula (2), (2a) or (2b) ##STR1## in which Y is a substituent which can be eliminated by alkali to form the vinyl group, X is chlorine or bromine and R is hydrogen, lower alkyl, phenyl or halogen, and K.sup.o is the radical of a coupling component or another radical which contains azo groups, K.sup.o containing a group of the formula --N(R.sup.o)--Z, in which R.sup.o is hydrogen or lower alkyl and Z is a radical of the formula ##STR2## in which A is halogen or cyanoamido, R.sup.20 is hydrogen or lower alkyl, and R.sup.21 has one of the meanings given for R.sup.20, or is an optionally methyl-substituted cycloalkylene radical, or is a phenyl radical, or in which R.sup.20 and R.sup.21, together with the nitrogen atom and if appropriate one or two further hetero groups, can form a 5- or 6-membered heterocyclic radical. The azo compounds are suitable as fiber-reactive dyestuffs for dyeing material containing hydroxy and/or carboxamide groups, such as cellulose fibers, wool and synthetic polyamide fibers.