Azo dyes containing thienothiophene radicals as radicals of the

Details Azo dyes containing thienothiophene radicals as radicals of the Azo dyes containing thienothiophene radicals as radicals of the

1987-07-01

1989-06-27

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534630, 534640, 534643, 534651, 534738, 534753, C09B 29033, C09B 2908, C09B 2936, D06P 352

Patent

active

048431532

ABSTRACT:
Thienothiophene dyes of the formula ##STR1## wherein Z is carboxylate, acyl, carboxyl, substituted or unsubstituted carbamoyl, cyano or nitro, X is hydrogen, fluorine, chlorine, bromine, Z or a group of the formula ##STR2## T.sup.1 and T.sup.2 are identical or different and each is independently of the other cyano, substituted or unsubstituted alkoxycarbonyl, alkenyloxycarbonyl, carbamoyl or alkylcarbamoyl and W is hydrogen, methyl or ethyl, Y is hydrogen, chlorine or bromine and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters wherein the dyeing obtained have good fastness properties.

REFERENCES:
patent: 4081435 (1978-03-01), Baird et al.

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