1:1-Azomethine-metal-complex dyestuffs
AssigneeCiba-Geigy Corporation
InventorsFrancois L'Eplattenier, Laurent Vuitel
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Abstract
1:1-Metal complexes of azomethines of the formula I ##STR1## wherein A and B are isocyclic or heterocyclic aromatic radicals, with however only one of the radicals A and B being a benzene ring, R represents a hydrogen atom, an alkyl group containing 1 to 6 carbon atoms, or an aryl radical, and the complexing metal ions are bivalent cations of the transition metals, zinc ions or cadmium ions which are useful for pigmenting high molecular organic material.
Claims6
1:1-Metal complexes of azomethines of the formula I ##STR44## wherein A and B are isocyclic aromatic groups, with however only one of the groups A and B being a benzene ring, R represents a hydrogen atom, an alkyl group containing 1 to 6 carbon atoms, or an aryl group, and the complexing metal ions are bivalent cations of zinc, copper, nickel, colialtor cadmium.
Dependencies are inferred from the claim text.