Electrophotographic light-sensitive material containing indenothiophenone or its derivative and process of preparing indenothiophenone and its derivative
AssigneeRicoh Company, Ltd.
InventorMitsuru Hashimoto
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Abstract
Electrophotographic light-sensitive materials having a photoconductive layer formed on an electroconductive support, the photoconductive layer comprising an organic photoconductive compound (monomer or polymer) and indenothiophenone or its derivative as a sensitizer, and a process of preparing indenothiophenone and its derivatives from a benzoic acid derivative and a thiophene derivative.
Claims4
An electrophotographic light-sensitive material having a photoconductive layer formed on an electroconductive support, the photoconductive layer comprising a photoconductive material selected from the group consisting of organic photoconductive monomers and organic photoconductive polymers, and from 0.01 to 1.2 mole per mole of organic photoconductive monomer or per monomeric unit of the organic photoconductive polymer of indenothiophenone or a derivative thereof of the formulas:
- ##STR10## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are hydrogen or nitro groups.
Dependencies are inferred from the claim text.