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US 4,900,645 AGranted
Electrophotographic photosensitive member comprises styryl compound as transport material
AssigneeMinolta Camera Kabushiki Kaisha
InventorHideaki Ueda
Life of this patent
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Abstract
The present invention relates to a photosensitive member containing a specific styryl compound for a charge transporting material, which is improved in photographic propertied such as photosensitivity and repeating properties.
Claims10
A photosensitive member comprising a styryl compound as a charge transporting material which is represented by the following formula (I), ##STR20## wherein Ar.sub.1 is a halogen atom or a cyano group;
- or a condense polycyclic group, an aromatic heterocyclic group, an alkyl group or an alkyl group, each of which may have substituents;
- Ar.sub.2 is an aromatic hydrocarbon group, a condensed polycyclic group or an aromatic heterocyclic group, each of which may have substituents;
- Ar.sub.3 and Ar.sub.4 are independently an aromatic hydrocarbon group, a condensed polycyclic group, or a heterocyclic group, each of which may have substituents;
- n is 0 or 1;
- One of Ar.sub.1, Ar.sub.2, Ar.sub.3 and Ar.sub.4 is an aromatic hydrocarbon group which may have substituents.
2 more elements
Dependencies are inferred from the claim text.