Liquid developer for electrophotography
US4595646A · kind A · utility
7Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1983 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Dec 5, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid developer for electrophotography is disclosed, which comprises a highly electrically insulating carrier liquid with a low dielectric constant and a colorant comprising a pigment component treated with a humic acid component selected from the group consisting of humic acid, a humic acid salt and a humic acid derivative, and then coated with a resin component, which colorant is dispersed in the highly electrically insulating carrier liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.