1,2,4,5-benzoylenebis(naphtho[1,8-de]pyrimidine) compounds and their use in photosensitive layers
US5116706A · kind A · utility
7Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Oct 31, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0659
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,2,4,5-Benzoylenebis(naphto[1,8-de]pyrimidine) compounds of the followig formula (I) or (II): ##STR1## wherein R and R' are, the same or different, hydrogen atom, a halogen atom, hydroxyl group, nitro group, cyano group, an alkyl group which may be substituted, an alkoxyl group which may be substituted, an aryl group which may be substituted, an aralkyl group which may be substituted, a carboxyl group which may be esterified or a carbamoyl group which may be substituted and m and n each are an integer from 1 to 6, and photosensitive members for electrophotography having a photosensitive layer containing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.