Halogenated charge directors for liquid developers
US5262266A · kind A · utility
3Cited by
20References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid developer contains a liquid carrier, a halogenated charge director and toner particles. Preferably, the charge director contains a fluorinated portion and a hydrocarbon portion. The charge director provides a developer which is fully charged but has a very small residual conductivity, thus providing a high quality image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.