Patent number: 4152324
Abstract: A metal complex having the formula ##STR1## or the formula ##STR2## wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, R is an alkyl, cycloalkyl, aryl, aralkyl or heterocyclic residue or R is the atoms required to complete, together with residue B, a heterocyclic residue, R' is a carbon chain which may form part of an aromatic or heterocyclic ring and containing 2 or 3 carbon atoms between the nitrogen atom and the substituent Y, X and Y are the same or different and each is O,S,N,CO.sub.2 or N--R wherein R has its previous significance, M is Cu, Zn or ni, p is 1 or 2 and when p is 1, E is a hydrogen atom attached to one of residue A, B, R of R', and when p is 2, E is either a direct bond linking two residues, A, B, R or R' or is an alkylene, arylene or aralkylene residue linking two residues, A, B, R or R', which is useful for pigmenting organic material, preferably a lacquer, paint or printing ink.
Type:
Grant
Filed:
August 11, 1976
Date of Patent:
May 1, 1979
Assignee:
Ciba-Geigy Corporation
Inventors:
James M. McCrae, Christopher Midcalf, Alexander M. Irvine