Patent ID: 6048968
Filing Date: 2000-04-11
Classification: C07C,C09B

Abstract:
A cationic azo dye of the formula I ##STR39## where n is a number from 0 to 8,R.sup.1 is hydrogen, nitro, halogen or C.sub.1 -C.sub.6 -alkyl,R.sup.2 and R.sup.3 are independently hydrogen or C.sub.1 -C.sub.6 -alkyl or together with the carbon atom linking them are a cyclopentyl or cyclohexyl radical,K is the radical of a coupling component,A is oxy, imino or unsubstituted or substituted C.sub.1 -C.sub.6 -alkylimino,B is C.sub.1 -C.sub.6 -alkylene which may be interrupted by 1 or 2 nonadjacent oxy, imino or unsubstituted or substituted C.sub.1 -C.sub.6 -alkylimino groups and a radical ##STR40## Q.sup.1, Q.sup.2 and Q.sup.3 independently are hydrogen, C.sub.1 -C.sub.10 -alkyl which may be interrupted by from 1 to 4 nonadjacent oxy, imino and unsubstituted or substituted C.sub.1 -C.sub.4 -alkylimino groups and may be substituted by hydroxyl, halogen or phenyl, and Q.sup.1 and Q.sup.2 together with the nitrogen atom linking them are a 5- or 6-membered heterocyclic radical with or without nitrogen or oxygen as a further heteroatom, andAn.sup..crclbar. is the equivalent of an anion.