Electrophotographic element containing disazo compound
US4537844A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Sep 28, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0683
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel disazo compound is provided which is represented by the general formula (I): ##STR1## (wherein, R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl group with 1-4 carbon atoms, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aromatic group, or a substituted or unsubstituted hetero ring group. R.sub.1 and R.sub.2 may be the same or different. And, R.sub.1 and R.sub.2 may mutually bond to form a ring). This disazo compound may be obtained by diazotating 2,6-diaminoanthraquinone and reacting the same with a coupler represented by the general formula (IV): ##STR2## (wherein, R.sub.1 and R.sub.2 are the same as defined above). Further, a multilayer type electrophotographic element is provided which comprises a charge carrier generating layer and a charge transfer layer and uses, as a charge carrier generating substance, a disazo compound represented by the general formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.