Synthetic polyamide fibres colored with acid azobenzene dyestuff

Details Synthetic polyamide fibres colored with acid azobenzene dyestuff Synthetic polyamide fibres colored with acid azobenzene dyestuff

1974-11-20

1977-12-20

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260157, 260158, 260186, 260205, 2602075, 260509, C09B 2908, C09B 3104, D06P 104, D06P 324

Patent

active

040638812

ABSTRACT:
Polyamide fibres are colored with dyestuffs of the formula: ##STR1## wherein A represents the residue of a carbocyclic diazotisable amine, R represents an alkyl group, U represents a linear or branched alkylene group of 1 to 5 carbon atoms, V represents an arylene group, and A, B, R and V are unsubstituted or substituted with non-water-solubilizing substituents, and a process for their preparation which comprises diazotising an amine of the formula:

REFERENCES:
patent: 2398367 (1946-04-01), Felix et al.
patent: 2603656 (1952-07-01), Martin
patent: 2603657 (1952-07-01), Vinton
patent: 3117956 (1964-01-01), Lange et al.
patent: 3579497 (1971-05-01), Ramanathan et al.
patent: 3709870 (1973-01-01), Wolfrum
patent: 3709872 (1973-01-01), Koller
patent: 3853841 (1974-12-01), Desai et al.

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