Abstract: A process for the manufacture of a pigment concentrate which comprises dispersing dry organic pigment granules in an organic vehicle.

Abstract: A tri- or tetra-dentate metal complex having the formula ##STR1## 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 A and Y, a heterocyclic residue, Y is O, S or N--R" wherein R" is the atoms required to complete, together with A and Y, a heterocyclic residue, X is O, S, CO.sub.2 or N--R wherein R has its previous significance, and when X is CO.sub.

Abstract: 1:1 metal complexes of bis-azomethines of the formula ##STR1## wherein R denotes an alkylene radical which contains 2-8 C atoms and is optionally interrupted by hetero-atoms, X denotes a H or halogen atom or an alkyl, alkoxy, carboxyl, alkoxy-carbonyl or phenylazo group and Y and Z denote H or halogen atoms, or wherein the substituents Y and Z form a fused benzene ring, if R contains a hetero-atom, Y and Z must not be H atoms, and if R contains 2 C atoms, X, Y and Z must not be H atoms, and a metal are valuable pigments coloring plastics and printing inks in fast yellow to range shades.

Abstract: Polymer compositions containing as a pigment a compound having the formula: ##STR1## in the pigmentary form in which it has an orange-red color and has an X chromaticity co-ordinate of from 0.59 to 0.63 and a Y chromaticity of from 0.33 to 0.36, each as hereinbefore defined.

Abstract: A tri- or tetra-dentate metal complex having the formula ##SPC1##Wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, C is an alkylene, cycloalkylene, cycloalkenylene, an aryl or heterocyclic residue, D is an alkyl, an alkylene, an aryl or a heterocyclic residue, X and Y are the same or different and each is an O, S, CO.sub.2 or N--R residue wherein R is an alkyl, cycloalkyl, aryl, aralkyl or heterocyclic residue or R is the atoms required to complete, together with the residue A or D, a heterocyclic residue, m and n are each 0 or 1 with the proviso that the sum of m and n is at least 1, M is a Cu, Zn or Ni metal atom, p is 1 or 2 and when p is 1, F is a hydrogen atom attached to one of the residues A, B, C and D and when p is 2, F is either a direct bond linking two residues A, B, C and D or is an alkylene, arylene or aralkylene residue linking two residues A, B, C and D which is useful for coloring organic material preferably a lacquer, paint or printing ink.

Abstract: A tri- or tetradentate metal complex having the formula ##SPC1##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 a carbocyclic ring, having from 1 to 3 carbon atoms between the X and Y substituents, 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 a Cu, Zn or Ni metal atom, p is 1 or 2 and when p is 1, C is a hydrogen atom attached to one of the residues A, B, R and R' and when p is 2, C is either a direct bond linking two residues A, B, R or R', or C is an alkylene, arylene or alkarylene group linking two residues A, B, R or R', which is useful for pigmenting organic material, preferably lacquer, paint or printing ink.

Abstract: A process for the manufacture of a pigment concentrate which comprises dispersing dry organic pigment granules in an organic vehicle.