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US 5,288,574 AGranted
Phthalocyanine imaging members and processes
AssigneeXerox Corporation
InventorsDenis Desilets, Trevor I. Martin, Cheng-Kuo Hsiao, Terry L. Bluhm
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AssigneeXerox Corporation
InventorsDenis Desilets, Trevor I. Martin, Cheng-Kuo Hsiao, Terry L. Bluhm
Estimating the term…
A layered photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of titanyl phthalocyanine photogenerating pigments and thereover a charge transport layer, and wherein said photogenerating pigments are prepared by a process which comprises the formation of a slurry comprised of dihalotitanium phthalocyanine in a mixture comprised of a trihaloacetic acid and an alkylene chloride; adding the resultant slurry to a mixture of an aliphatic alcohol and water enabling hydrolysis whereby Type X oxytitanium phthalocyanine is obtained; separating the Type X oxytitanium phthalocyanine from the slurry; and thereafter subjecting the Type X oxytitanium phthalocyanine obtained to treatment with a halobenzene, followed by the separation of Type IV oxytitanium phthalocyanine photogenerating pigments.
A layered photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of titanyl phthalocyanine photogenerating pigments and thereover a charge transport layer, and wherein said photogenerating pigments are prepared by a process which comprises the formation of a slurry comprised of dihalotitanium phthalocyanine in a mixture comprised of a trihaloacetic acid and an alkylene chloride;
A process for the preparation of Type IV oxytitanium phthalocycanine consisting essentially of the formation of a slurry comprised of dihalotitanium phthalocyanine in a mixture comprised of a trihaloacetic acid and an alkylene chloride;
A process for the preparation of Type IV oxytitanium phthalocyanine consisting essentially of dissolving Type IV oxytitanium phthalocyanine in a solvent comprises of a trihaloacetic acid and an alkylene halide wherein alkylene contains from 1 to 12 carbon atoms;
Dependencies are inferred from the claim text.