Azo dyes having a 3-halo-4-cyano or acyl-6-hydroxypyridone-2 cou

Details Azo dyes having a 3-halo-4-cyano or acyl-6-hydroxypyridone-2 cou Azo dyes having a 3-halo-4-cyano or acyl-6-hydroxypyridone-2 cou

1975-02-18

1977-01-25

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, 2602472A, 26029369, 2602948D, 2602949, 2602955R, 2602955A, 260296R, C09B 2936, C09B 4300

Patent

active

040050696

ABSTRACT:
The invention provides novel disperse dyes of formula I, ##STR1## in which D signifies the radical of a diazo component,

REFERENCES:
patent: 3640674 (1972-02-01), Berrie et al.
patent: 3642427 (1972-12-01), Berrie et al.
patent: 3657214 (1972-04-01), Berrie et al.
patent: 3776918 (1973-12-01), Hegar et al.

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