Basic azo dyestuffs containing a n-picolinium alkylene amino phe

Details Basic azo dyestuffs containing a n-picolinium alkylene amino phe Basic azo dyestuffs containing a n-picolinium alkylene amino phe

1978-03-29

1980-08-12

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, 260154, 260146R, 260146D, C09B 2936

Patent

active

042172713

ABSTRACT:
Basic azo dyestuffs devoid of sulphonic acid and carboxylic acid groups and of the formula ##STR1## wherein A is an optionally substituted aromatic carboxylic or heterocyclic radical, R is an optionally substituted lower alkyl, aralkyl or cycloalkyl radical, Y is an optionally substituted alkylene radical of 1 to 4 carbon atoms, Z.sup..sym. is a 3- or 4-methylpyridinium group, X is an anion and the ring B may be further substituted, useful for dyeing synthetic polymeric materials especially polymers and copolymers of acrylonitrile.

REFERENCES:
patent: 3538074 (1970-11-01), Hegar
patent: 3640993 (1972-02-01), Hegar et al.

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