Disperse diaminopyridine-3-azo dyestuffs

Details Disperse diaminopyridine-3-azo dyestuffs Disperse diaminopyridine-3-azo dyestuffs

1978-07-07

1980-06-17

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260153, 260154, 260155, C09B 2934

Patent

active

042083249

ABSTRACT:
Azo dyes which are free from acid water-solubilizing groups and correspond to the formula ##STR1## wherein two radicals Z represent groups of the formula --NR'R" and one of the radicals Z represent a group of the formulae --NR'R", OR'" or --S--R'", wherein R', R" and R'"each represents hydrogen, aryl, alkyl, aralkyl, cycloalkyl, an aliphatic or a heterocyclic radical and R' and R" are able to form a ring which contains the amino nitrogen, and the radicals --NR'R" may be the same or different, R is alkyl, substituted alkyl, cycloalkyl or substituted cycloalkyl, n is 1 or 2, Y represents a radical of the formulae --CN or --CONH.sub.2, and D is the radical of an aromatic or heterocyclic diazo component; the nucleus A containing three double bonds if n is 1 and two double bonds if n is 2. The new dyestuffs dye polyester fibres in yellow and red shades.

REFERENCES:
patent: 2068353 (1937-01-01), Schneiderwrith
patent: 2145579 (1939-01-01), Binz et al.
patent: 2148705 (1939-02-01), Mietzsch et al.
patent: 2681906 (1954-06-01), Granatek

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