2-Thienyl azo dyestuff compounds

Details 2-Thienyl azo dyestuff compounds 2-Thienyl azo dyestuff compounds

1972-05-15

1981-04-28

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, 260156, C07C10704, C09B 29033

Patent

active

042644950

ABSTRACT:
Azo compounds having the formula ##STR1## in which R.sup.1 is cyano, aryl, an acyl radical or a carbamoyl radical, R.sup.2 is hydrogen, alkyl, alkoxy, aralkyl or aryl, R.sup.3 is alkyl, halogen, thiocyanato, arylazo or one of the substituents which R.sup.1 can represent, and A is an aniline, tetrahydroquinoline, benzomorpholine or .alpha.-naphthylamine disperse azo dye coupling component. The azo compounds produce red to blue shades on polyamide, polyester and cellulose acetate fibers and exhibit improved fastness and dyeability properties on synthetic polyamide fibers.

REFERENCES:
patent: 2805218 (1957-09-01), Towne et al.
patent: 3631020 (1971-12-01), Weaver et al.
patent: 3639385 (1972-02-01), Weaver et al.

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