PROCESS FOR THE PREPARATION OF OPAQUE PERYLENE-TETRACARBOXYLIC-BIS-(3,5-DIMETHYLPHENYL IMIDE)

摘要

Process for the preparation of opaque perylenetetracarboxylic acid bis-(3,5-dimethylphenylimide), which comprises heating the alpha -modification of perylenetetracarboxylic acid bis-(3,5-dimethylphenylimide) in at least one aliphatic monocarboxylic acid. Use as a pigment for plastic compositions, printing inks, fibres and paints.