Electrophotographic element having charge transport layer
US4245021A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1979 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Feb 12, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic element according to the present invention exhibits an exceedingly high sensitivity and it comprises (1) an electroconductive support, a charge producing layer consisting essentially of a charge producing substance and a charge transport layer consisting essentially of a charge transport substance having the following general formula and a binder, the last-mentioned two layers being superposed in that order or vice versa on said support, or (2) an electroconductive support and a photosensitive layer, superposed thereon, and consisting essentially of a charge producing substance, a charge transport substance having said general formula and a binder: ##STR1## (wherein n is an integer of 1 or 2, R.sub.1 stands for hydrogen atom or an alkyl, nitro, dialkylamino, alkoxy, nitrile or carboxylic ester group, and R.sub.2 and R.sub.3 stand for hydrogen or halogen atom or nitro or dialkylamino group respectively).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.