Electrophotographic photoreceptor
US4985324A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0694
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electrophotographic photoreceptor comprising an electroconductive support having thereon a layer containing a charge carrier-transporting compound and a charge carrier-generating compound or having thereon a layer containing a charge carrier-transporting compound and a layer containing a charge carrier-generating compound, wherein the photoreceptor contains a tetrakisazo compound of the following formula (I) as the charge carrier-generating compound: ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4, Ar.sub.5 and Ar.sub.6, which may be the same or different, each represents an arylene group, a divalent condensed polycyclic aromatic group or a divalent heterocyclic aromatic group; PA0 A represents ##STR2## X represents an atomic group necessary to form an aromatic ring or heterocyclic ring condensed with the benzene ring of the formula having the hydroxyl group and Y bonded thereto; PA0 Y represents ##STR3## R.sup.1 represents an alkyl group or a phenyl group; R.sup.2 represents a hydrogen atom, a lower alkyl group, a carbamoyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group or an amino group; PA0 R.sup.3 represents an alkyl group, an aromatic gro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.