Potassium phthalocyanine complexes, method of preparation, and phthalocyanine purification processes

摘要

The invention of this application is directed to dipotassium phthalocyanine glyme and crown ether complexes, such as for example dipotassium phthalocyanine bis (methoxy ethyl) ether and dipotassium phthalocyanine bis (18-crown-6) ether. Methods for obtaining these complexes by reacting metal free phthalocyanine with potassium hydroxide and the appropriate glyme or crown ethers in the presence of water is also described. Further methods for obtaining purified metal free phthalocyanines from the glyme and crown ether complexes are disclosed. These materials have many uses including pigments, electrophotographic photoreceptors and photoreceptor devices.