Novel heterocycle-containing trisazo dyes

Details Novel heterocycle-containing trisazo dyes Novel heterocycle-containing trisazo dyes

1987-05-13

1988-11-15

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Leather dyeing

534754, 106 22, D06P 332, C09D 1100

Patent

active

047846682

ABSTRACT:
Compounds which, in the form of the free acid, are of the general formula I ##STR1## where D is phenyl which unsubstituted or substituted by fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.4 -alkylsulfonyl, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl or hydroxysulfonyl or by unsubstituted or substituted carbamyl or sulfamyl, and

REFERENCES:
patent: 2676957 (1954-04-01), Armento
patent: 3998803 (1976-12-01), Burkhard et al.
patent: 4342684 (1982-08-01), Frank et al.
patent: 4468348 (1984-08-01), Wicki

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