Process for production of liquid developer, and liquid developer produced by the process
US8399170B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Jun 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1355
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Production process for a liquid developer for use in electrophotograph or electrostatic recording by coacervation method. The process can produce a liquid developer in which a coloring agent (e.g., a pigment) is included completely within a resin particle by distillation of a solvent while retaining the state where the coloring agent is finely dispersed and the resulting colored resin particle is small in particle size with excellent dispersion stability, and excellent optical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.