Invention Grant
US07771909B2 Titanyl phthalocyanine photoconductors 有权
钛酞菁光电导体

Titanyl phthalocyanine photoconductors
Abstract:
A photoconductor that includes a photogenerating layer, and at least one charge transport layer where the photogenerating layer contains a titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the resulting mixture of the dissolved Type I titanyl phthalocyanine to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene, and wherein the photogenerating layer is prepared from a dispersion of the titanyl phthalocyanine Type V and a chlorinated solvent of at least one of a dichloroethane and a dichloropropane.
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