Electrophotographic photoreceptor comprising azo compound and coupler
US4912001A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0694
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photoreceptor is provided with a photosensitive layer, which contains an azo compound having in the molecule thereof at least one azo group coupled with a couple residuum represented by the following general formula (I): ##STR1## wherein X means an atomic group necessary for condensing with a benzene ring to form a substituted or unsubstituted aromatic hydrocarbon ring, or substituted or unsubstituted aromatic heterocyclic ring, Y denotes a radical selected from the group consisting of hydrogen, halogen atoms, cyano radicals, and substituted or unsubstituted alkyl, or alkoxy group, and n stands for an integer of 0.about.4, R.sub.1 and R.sub.2 designate, respectively, hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alalkyl, substituted or unsubstituted aromatic hydrocarbon ring or substituted or unsubstituted aromatic heterocyclic ring, and said R.sub.1 and R.sub.2 may be mutually same or different, or may form a ring together with nitrogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.