1,2,4,5-benzoylenebis(naphtho[2,3-d]imidazole) compounds and photosensitive members containing them
US4983741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1988 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Dec 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0659
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,2,4,5-Benzoylenebis(naphtho[2,3-d]imidazole compounds of the following formula (I) or (II): ##STR1## wherein R and R' each are a hydrogen atom, a halogen atom, a hydroxyl group, a carboxyl group which may be esterified, a sulfonic acid group which may be esterified, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, an aryl group which may be substituted, an aralkyl group which may be substituted, a carbamoyl group which may be substituted or a sulfamoyl group which may be substituted and m and n each are an integer of 1 or 2, and photosensitive members for electrophotography having a photosensitive layer containing these compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.