4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone

Details 4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone 4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone

1975-05-01

1976-11-23

Levy, Donald

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 21C, 8 50, D06P 342, D06P 352

Patent

active

039934411

ABSTRACT:
Dyestuffs, free of ionic groups, of the formula: ##SPC1##
Wherein R is alkyl having 1 to 6 carbon atoms and the utility thereof in the dyeing and printing of synthetic materials deep yellow with excellent fastness properties.

REFERENCES:
patent: 3487066 (1969-12-01), Ritter et al.
patent: 3619112 (1969-12-01), Berrie
patent: 3640674 (1972-02-01), Berrie et al.

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