Titanyl phthalocyanine processes and photoconductors thereof
AssigneeXerox Corporation
InventorJin Wu
Life of this patent
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Abstract
A process which includes treating, mixing, or contacting a Type I titanyl phthalocyanine with a weak acid with a pKa of at least equal to or greater than about 0; dissolving the acid treated Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the formed mixture 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 monohalobenzene thereby resulting in a high sensitivity titanyl phthalocyanine.
Claims17
A process for preparing a high sensitivity titanyl phathocyanine, which comprises treating a Type I titanyl phthalocyanine with a weak acid having a pKa of at least equal to or greater than about −0.25;
- dissolving the weak acid treated Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide;
- adding said mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine;
- and treating said Type Y titanyl phthalocyanine with monohalobenzene thereby resulting in a high sensitivity titanyl phthalocyanine.
Dependencies are inferred from the claim text.