Stilbeneamine derivative and electrophotosensitive material using the same
AssigneeKyocera Mita Corporation
InventorsYoshio Inagaki, Daisuke Kuboshima
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Abstract
The present invention relates to a stilbeneamine derivative represented by a formula (1): 1 wherein Ar1 and Ar2 each denote an aryl group; Ar3 denotes an arylene group; Ar4denotes an arylene group or divalent heterocyclic group; provided that when a thiophene ring in the formula is 2-thiophenyl, ‘n’ is 1 and when the thiophene ring is 3-thiophenyl, ‘n’ is 0 or 1, and also relates to an electrophotosensitive material comprising a photosensitive layer containing this derivative. The derivative is excellent in electric charge transferring capability, compatibility with a binder resin and stability, thus offering the electrophotosensitive material superior to the prior-art products in sensitivity and repeatability.
Claims7
A stilbeneamine derivative represented by a formula (1):
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- wherein R1 denotes an alkyl group, alkoxy group, aryl group, aralkyl group, halogen atom or hydrogen atom;
- Ar1 and Ar2 are the same or different, each denoting an aryl group;
- Ar3 denotes an arylene group;
- and Ar4 denotes an arylene group or divalent heterocyclic group;
- provided that when a thiophene ring in the formula is 2-thienyl, ‘n’ is 1 and when the thiophene ring is 3-thienyl, ‘n’ is 0 or 1.
An electrophotosensitive material comprising a photosensitive layer formed on a conductive substrate and containing a stilbeneamine derivative, as a hole transport material, represented by a formula (1):
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- wherein R1 denotes an alkyl group, alkoxy group, aryl group, aralkyl group, halogen atom or hydrogen atom;
- Ar1 and Ar2 are the same or different, each denoting an aryl group;
- Ar3 denotes an arylene group;
- and Ar4 denotes an arylene group or divalent heterocyclic group;
- provided that when a thiophene ring in the formula is 2-thienyl, ‘n’ is 1 and when the thiophene ring is 3-thienyl, ‘n’ is 0 or 1.
Dependencies are inferred from the claim text.