Imaging member having a polycarbonate-biphenyl diamine charge transport layer
US4115116A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | May 4, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0436
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photosensitive member having at least two electrically operative layers is disclosed. The first layer comprises a photoconductive layer which is capable of photogenerating holes and injecting photogenerated holes into a contiguous charge transport layer. The charge transport layer comprises an electrically inactive organic resinous material containing from about 15 to about 75 percent by weight of N,N'-diphenyl-N,N'-bis(phenylmethyl)-[1,1'-biphenyl]-4,4'-diamine. The charge transport layer while substantially non-absorbing in the spectral region of intended use is "active" in that it allows injection of photogenerated holes from the photoconductive layer, and allows these holes to be transported through the charge transport layer. This structure may be imaged in the conventional xerographic mode which usually includes charging, exposure to light and development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.