Electrophotographic photoreceptor with a hydrazone
US5080991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Aug 17, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0661
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photoreceptor comprising a photosensitive layer which contains one or more hydrazone compounds represented by the formula: ##STR1## wherein A represents a substituted or unsubstituted aryl or heterocyclic group; R.sup.1, R.sup.2 and R.sup.5 are the same or different from each other and independently represent a hydrogen atom, or a substituted or unsubstituted alkyl or aryl group; R.sup.3 and R.sup.4 are the same or different from each other and independently represent a hydrogen atom, a halogen atom, a nitro group, or a substituted or unsubstituted alkyl, alkoxy, aryl or aryloxy group; R.sup.6 represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted alkyl or alkoxy group; R.sup.7 represents a substituted or unsubstituted alkyl, aryl, aralkyl or heterocyclic group, or an allyl group, or binds to the phenyl group attached to the nitrogen atom as indicated by the dotted line in the formula I to form either one of the following rings together with the phenyl group and the nitrogen atom: ##STR2## and n is an integer of 1 or 2, provided that A and R.sup.1 may form a ring together with the carbon atom to which they are attached. This photorecept…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.