The present invention relates to a process for producing a crystalline I-type oxytitanium phthalocyanine having strong peaks in CuK.alpha. characteristic X-ray diffraction at Bragg angles (2.theta..+-.0.2.degree.) of 9.0.degree., 14.2.degree., 23.9.degree., and 27.1.degree., comprising milling-treatment...http://www.google.es/patents/US5530115?utm_source=gb-gplus-sharePatente US5530115 - Process for producing crystalline I-type oxytitanium phthalocyanine
Process for producing crystalline I-type oxytitanium phthalocyanine
