Bernd Kaletta

Electrophotographic material containing particular phthalocyanines

Metal-free, substituted phthalocyanines in the χ-modification

Process for the preparation of pigments based on isoindole

Pigment salts and their use for dyeing and pigmenting

Metal complex pigments of azines

Process for preparation of asymmetric isoindoline pigments

Substituted, metal-free phthalocyanines in the X-form, process for their manufacture and their use as pigments.

Process for the manufacture of pigments on the basis of isoindole

Process for the preparation of 1,2,3-tricyanobenzene, phthalocyanines which are obtainable from 1,2,3-tricyanobenzene, and their use as pigments

Heterocyclic compounds and porphyrincompounds obtained from them.