Dual charge transport layer and photoconductive imaging member including the same
AssigneeXerox Corporation
InventorsDamodar M. Pai, Kent J. Evans, Kathleen M. Carmichael, Colleen A. Helbig, John F. Yanus, Yuhua Tong, Timothy J. Fuller, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch
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Abstract
A photoconductive imaging member is disclosed comprising a charge generation layer and a charge transport layer comprising an oxidative inhibitor. An electrophotographic imaging process using the imaging member of the invention is also described.
Claims15
A dual charge transport layer having a top layer and a bottom layer,
- wherein the top layer and the bottom layer are adjacent to each other;
- wherein the bottom layer is adjacent to a charge generation layer;
- wherein the bottom layer comprises a first charge transport compound and a resin binder;
- and
- wherein the top layer comprises a second charge transport compound, said resin binder, and an oxidative inhibitor, wherein the oxidative inhibitor is pentaerythritol tetrakis[3,5-di-tert-butyl-4-hydroxyhydrocinnamate].
A photoconductive imaging member comprising an electrically conductive substrate, a charge generation layer, and a dual charge transport layer having a top layer and a bottom layer
- wherein the top layer and the bottom layer are adjacent to each other;
- wherein the bottom layer is adjacent to the charge generation layer;
- wherein the bottom layer comprises a first charge transport compound and a resin binder;
- and
- wherein the top layer comprises a second charge transport compound, said resin binder, and an oxidative inhibitor, wherein the oxidative inhibitor is pentaerythritol tetrakis[3,5-di-tert-butyl-4-hydroxyhydrocinnamate].
A process for the fabrication of a photoconductive imaging member comprising the steps of:
- providing a substrate with a charge generation layer having an exposed surface;
- and
- depositing on the exposed surface of the charge generation layer a dual charge transport layer comprising a top layer and a bottom layer, by applying a first coating solution comprising a first charge transport compound and a resin binder to the exposed surface to form the bottom layer, and applying a second coating solution comprising pentaerythritol tetrakis[3,5-di-tert-butyl-4-hydroxyhydrocinnamate], a second charge transport compound and said resin binder to the exposed surface of the bottom layer to form the top layer of the dual charge transport layer.
Dependencies are inferred from the claim text.