Carbazole based charge transport compounds
US6835513B2 · kind B2 · utility
27Cited by
23References
21Claims
0Family size
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Key dates
| Filing date | Mar 6, 2003 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Mar 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0661
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Improved organophotoreceptors have:(a) a charge transport compound having the formula: where R1 is hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, or an aryl group; andR2 and R3 independently have a structure of: in which Ar is selected form the group consisting of; R4 is a hydrogen, or an aromatic group;(b) a charge generating compound; and(c) an electrically conductive substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.