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

1980-02-08

1981-06-16

Demers, Arthur P.

Harness for working animal

260158, 548138, C07D28512

Patent

active

042739268

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: 3794665 (1974-02-01), Berkelhammer et al.
Elderfield, Heterocyclic Compounds, vol. 7, John Wiley & Sons, N.Y., N.Y., 1962, p. 595.
Tsurkan et al., Chem. Abstracts 80(1974) #82836.
Maekawa et al., Chem. Abstracts 85(1976) #46731.
De et al., Chem. Abstracts 22(1928) p. 4123.

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