Azo dyes from 2-amino-5-styryl-1,3,4-thiadiazoles

Details Azo dyes from 2-amino-5-styryl-1,3,4-thiadiazoles Azo dyes from 2-amino-5-styryl-1,3,4-thiadiazoles

1979-01-25

1980-08-26

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260154, 260155, 260156, C09B 2922, C09B 3114, C09B 6208

Patent

active

042194750

ABSTRACT:
Disclosed are azo dyes having the general formula ##STR1## in which R is hydrogen, --NO.sub.2, --CN, halogen, alkoxy, alkyl, alkoxycarbonyl, or CF.sub.3, and A is the residue of an aniline, tetrahydroquinoline or benzomorpholine disperse dye coupling component. These dyes produce red to blue shades on polyester fibers and exhibit one or more improved properties such as dyeability, light fastness, pH stability, build, and the like on polyester, polyamide and cellulose ester fibers.

REFERENCES:
patent: 3790557 (1974-02-01), Weaver
patent: 3962209 (1976-06-01), Gotteschlich
Maffii et al. Chem. Absts. vol. 53, No. 2211e (1959).
Rao, V et al. Chem. Absts. vol. 73, No. 56031k (1970).

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