Chromiferous complex dyestuffs, a process for their preparation and their application
AssigneeP C U K Produits Chimiques Ugine Kuhlmann
InventorsAntoine G. L. J. Breda, Jacques G. R. Roussel
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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.
Claims14
The chromiferous complex dyestuffs which, in the acid form, correspond to the general formula ##STR11## 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.
Dependencies are inferred from the claim text.