Uniform cocrystals of titanyl fluorophthalocyanine and titanyl phtalocyanine formed in trichloroethane, and charge generating layer containing same

摘要

In a process for forming a nanoparticulate crystalline titanium phthalocyanine pigment composition, a titanium phthalocyanine pigment is contacted with substantially pure 1,1, 2-trichloroethane (TCE) under conditions effective to convert the titanium phthalocyanine pigment to the nanoparticulate crystalline composition.