METHOD FOR PIGMENTING SEMI-CRYSTALLINE PLASTICS WITH PHTHALOCYANINE PIGMENTS IN A NON-WARPING MANNER

摘要

The invention relates to a method for pigmenting semi-crystalline plastics with phthalocyanine pigments in a non-warping manner. Said method is characterised by the use of a phthalocyanine pigment that has been heated as a suspension in an organic solvent in the presence of a dicarboxylic acid or a dixarboxylic acid salt to a temperature of at least 80 °C. The invention also relates to a phthalocyanine pigment produced in this way.