Chromiferous complex dyestuffs, a process for their preparation

Details Chromiferous complex dyestuffs, a process for their preparation Chromiferous complex dyestuffs, a process for their preparation

1981-07-13

1983-11-08

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4500

Patent

active

044141513

ABSTRACT:
The invention relates to new chromiferous complex dyestuffs of the general formula: ##STR1## in which R represents a hydrogen atom or a .beta.-hydroxyethyl group, A represents a hydrogen atom, a phenyl group or a phenyl group substituted by one or more halogen atoms or alkyl groups of low molecular weight, and the nucleus B may be substituted by one or more chlorine atoms.
These complexes may be used for the coloration of the natural or synthetic polyamides or leather.

REFERENCES:
patent: 1990453 (1935-02-01), Hund et al.
patent: 2741657 (1956-04-01), Schmid et al.
patent: 3067191 (1962-12-01), North et al.
patent: 4052376 (1977-10-01), Breda et al.
patent: 4247455 (1981-01-01), Idelson
Lappert et al., Metal and Metalloid Amides, Ellis Horwood Limited, N.Y., pp. 661, 681, 682, 683, (1980).

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