Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

Details Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

1971-02-11

1977-05-10

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260165, 260174, 260178, 260184, 260187, 260206, 260207, C09B 3104, C09B 3108, C09B 3114, D06P 324

Patent

active

040227634

ABSTRACT:
Disazo dyestuff which in the form of the free acid correspond to the formula ##STR1## in which W stands for the radical ##STR2## or the radical ##STR3## R.sub.1 stands for hydrogen, an alkyl radical or a phenyl group; R.sub.2 and R.sub.3, independently of one another, stand for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R.sub.4 stands for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R.sub.5 stands for hydrogen, an alkyl group or an alkoxy group; R.sub.6 and R.sub.7, independently of one another, stand for hydrogen, hydroxy, cyano, halogen, acyloxy, alkoxycarbonyl or phenyl; X stands for an alkylene radical with 1 - 4 carbon atoms; R.sub.8 stands for an alkyl, phenyl, 2-naphthyl or 4-biphenyl group which is not further substituted; R.sub.9 stands for hydrogen or an alkyl group with 1 - 6 carbon atoms which may be substituted by a nitrile, carboxamide or carboxyl group; R.sub.10 stands for a substituent; and n stands for the numbers 0 - 2.
This dyestuff is suitable for dyeing synthetic fibers, especially polyamide fibers, with very good fastness to light.

REFERENCES:
patent: 1835393 (1931-12-01), Hentrich et al.
patent: 3070592 (1962-12-01), Baumann et al.
patent: 3479332 (1969-11-01), Jirou et al.
patent: 3485814 (1969-12-01), Speck
patent: 3557080 (1971-01-01), Dehnert et al.

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