Photosensitive composition for use in an OPC comprising X-metal free phtholocyamine and a dispersant
AssigneeZeneca Limited
InventorsMarie Holmes, Geoffrey R. Rothwell
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Abstract
A composition of matter, useful in the production of organic photoconductor devices, comprising a dispersion of X-form metal-free phthalocyanine in an organic liquid containing an effective amount of a dispersant.
Claims19
A stable dispersion for OPC devices comprising 0.5 to 30% by weight X-form metal-free phthalocyanine in an organic liquid and 2 to 50% based on weight of phthalocyanine of a dispersant comprising a poly (C.sub.2-4 -alkyleneimine) carrying at least two mono- or poly-(carbonyl-C.sub.1-17 -alkyleneoxy) groups.
An OPC device having a charge generation layer comprising 0.5 to 30% by weight X-form metal-free phthalocyanine and 2 to 50% based on weight of phthalocyanine of a dispersant comprising a poly(C.sub.2-4 -alkyleneimine) carrying at least two mono- or poly-(carbonyl-C.sub.1-17 -alkyleneoxy) groups.
Dependencies are inferred from the claim text.