METAL FREE PHTHALOCYANINE COMPLEXES, METHOD OF PREPARATION, AND PHTHALOCYANINE PURIFICATION PROCESSES

摘要

METAL FREE PHTHALOCYANINE COMPLEXES,METHOD OF PREPARATION, AND PHTHALOCYANINEPURIFICATION PROCESSESABSTRACT OF THE DISCLOSUREThe invention of this application is directedto dipotassium phthalocyanine glyme and crown ether complexes,such as for example dipotassium phthalocyanine bis (methoxyethyl) ether and dipotassium phthalocyanine bis (18-crown-6) ether. Methods for obtaining these complexes by reactingmetal free phthalocyanine with potassium hydroxide and theappropriate glyme or crown ethers in the presence of wateris also described. Further methods for obtaining purifiedmetal free phthalocyanines from the glyme and crown ethercomplexes are disclosed. These materials have many usesincluding pigments, electrophotographic photoreceptors andphotoreceptor devices.