Azo dyes from five membered ring heterocyclic amines and aniline

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260155, 260157, 260158, 260162, 260163, C09B 27033, C09B 29036, C09B 29039, C09B 29042, C09B 29048

Patent

active

043010695

ABSTRACT:
Disclosed are mono azo dyes derived from diazotized 5-membered heterocyclic amines and certain aniline, 1,2,3,4-tetrahydroquinoline, and benzomorpholine couplers containing thiosulfate alkyl groups. These dyes are useful for dyeing synthetic fibers, cellulose acetate and wool, and particularly impart fast violet to blue shades on polyamide fibers, and in general, exhibit improved properties such as fastness to light, sublimation, ozone, oxides of nitrogen, perspiration, crock, and wash, and exhibit excellent build, pH stability, bloom resistance, depth of shade, leveling, migration, and the like. The dyes have the general formula:

REFERENCES:
patent: 2659719 (1953-11-01), Dickey et al.
patent: 2683709 (1954-07-01), Dickey et al.
patent: 3226395 (1965-12-01), Schimmelschmidt et al.
patent: 3870696 (1975-03-01), Feeman
patent: 4180503 (1979-12-01), vor der Bruck et al.

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