Substituted 3-carbalkoxy 4-alkylamino-azobenzene compound as dis

Details Substituted 3-carbalkoxy 4-alkylamino-azobenzene compound as dis Substituted 3-carbalkoxy 4-alkylamino-azobenzene compound as dis

1975-07-08

1980-11-18

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260156, 260158, 260207, 2602071, 26032613R, 26032613C, 260456P, 260465D, 546329, 560 21, 560 23, 560 47, C09B 2904, C09B 2936, C09B 3316, D06P 354

Patent

active

042344824

ABSTRACT:
Azo dyestuffs, insoluble in water, are represented by the formula: ##STR1## wherein A represents the residue of a diazotizable benzene component carrying at least two substituents or the residue of a diazotizable heterocyclic component, R represents alkyl, B represents an unsubstituted or substituted alkyl group, and X represents hydrogen, chlorine, bromine, acylamino, benzoylamino, alkoxycarbonylamino, phenoxycarbonylamino, alkylsulfonylamino or phenylsulfonylamino, the dyestuff molecule being free of groups causing water solubility by formation of ions. These dyestuffs can be used for dyeing of hydrophobic fibers, in particular polyester fibers. Affinity is excellent and there are obtained bright, full-bodied shades very fast to wet tests, sublimation, abrasion and light.

REFERENCES:
patent: 2135008 (1938-11-01), Kleiner et al.
patent: 2782188 (1957-02-01), Merian
patent: 3335126 (1967-08-01), Baron et al.

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