Liquid electrographic developers containing polymeric quaternary salts
US4229513A · kind A · utility
18Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1979 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | May 29, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/131
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A negatively charged liquid electrographic developer comprising an electrically insulating carrier liquid such as a paraffinic hydrocarbon fraction, having stably dispersed therein (a) a halogenated polymer, such as chlorinated polyethylene, and having dissolved therein (b) a copolymer of a quaternary ammonium salt monomer and a solubilizing monomer and (c) a copolymer of a polar monomer and a solubilizing monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.