| abstract |
The invention relates to a new polymorphic pigmentary form of phthalocyanines, the preparation therof by salt-milling a phthalocyanine crude in the presence of a water-soluble neutral organic liquid, and some uses thereof. These phthalocyanines are stable beta-like mixed-phase (the alpha phase being totally absent) and have excellent pigmentary properties, which makes them suitable for example as pigments for electrophotographic toners.wherein M is two hydrogens or monovalent metals, a bivalent metal, or a bivalent oxometal, hydroxymetal or halogenometal moiety, with the proviso that the metal is not copper, and each X independently from all others is hydrogen or halogen. |