Cyclic bis-dicarboximide charge transport compounds for electrophotography
AssigneeEastman Kodak Company
InventorsChin H. Chen, Yann Hung
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Abstract
Cyclic bis-dicarboximides are employed as electron transport agents in photoconductor elements. Such compounds are characterized by the formula: ##STR1## wherein: R.sup.1 and R.sup.2, which may be the same or different, represent aryl, or aryl substituted with alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy groups having 2 to 20 carbon atoms; sulfonyl; sulfone; sulfonamide; nitrile; or nitro groups; R.sup.3, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, represent hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, or halogen; and n is 0 to 3.
Claims10
A photoconductor element comprising in combination successive adhering layers of:
- (a) a substrate;
- (b) an electrically conductive layer;
- (c) a charge generation layer and
- (d) a charge transport layer comprising a polymeric binder which is dissolved at least one cyclic bis-dicarboximide of the formula:
- ##STR9## wherein:
- R.sup.1 and R.sup.2, which may be the same or different, represent aryl, or aryl substituted with alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy groups having 2 to 20 carbon atoms;
- sulfonyl;
- sulfone;
- sulfonamide;
- nitrile;
- or nitro groups;
- R.sup.3, and R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, represent hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, or halogen;
- and
- n is 0 to 3.
Dependencies are inferred from the claim text.