Liquid developer for electrophotography
US4873166A · kind A · utility
7Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1987 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/131
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a process for producing a liquid developer for electrostatic photography which comprises a highly insulating hydrocarbon medium and resin particles dispersed therein, said process comprising polymerizing a monomer (A) soluble in said medium, but insolubilized upon being polymerized in the presence of a polymer (S) insoluble in said medium and having a carboxyl group, a hydroxyl group or an amide group. In this process, a monomer (B) soluble in said medium and still soluble upon being polymerization and/or a monomer (C) having at least two polymerizable unsaturated double bonds may also be polyumerized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.