Halogenated resins for liquid developers
US5244766A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Dec 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/131
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid electrostatic developer includes a toner which is made from a halogenated resin, a thermoplastic resin and a colorant. Preferably the halogenated resin is a fluorinated resin. Optionally, a charge adjuvant may be present. The liquid electrostatic developer is prepared by a process wherein the halogenated resin, the thermoplastic resin, the optional colorant and the optional charge adjuvants are melt blended to form a mixture. This mixture is ground at a cold temperature, and subsequently charged with a charge director. The toner used in the liquid electrostatic developer formed by this process has excellent thermoplastic and electrical properties and provides a developer with excellent imaging characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.