Aminobiphenyl charge transporting materials and electrophotographic photoconductors using the same
US4898800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Oct 20, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/06142
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Charge transporting materials containing compounds having the formula (I): ##STR1## wherein R.sup.1 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a thioalkoxy group, an aryloxy group, a methylenedioxy group, an aralkyl group, a nitro group, or an unsubstituted or substituted aryl group; R.sup.2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, halogen; and R.sup.3 and R.sup.4 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, halogen, a dialkylamino group, an amino group, a thioalkoxy group, an aryloxy group, a methylenedioxy group, an aralkyl group, or an unsubstituted or substituted aryl group, k, m and n each represent an integer of 0 to 5, and l represents an integer of 0 to 4, provided that R.sup.1, R.sup.2, R.sup.3 and R.sup.4 cannot be hydrogen at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.