Solvent-free emulsion process
US8124309B2 · kind B2 · utility
17Cited by
25References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Sep 22, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for making a resin emulsion suitable for use in forming toner particles is provided. In embodiments, a suitable process includes melt mixing a resin in the absence of an organic solvent, optionally adding a surfactant to the resin, adding to the resin a basic agent and water, and subjecting the resin, basic agent and water to acoustic mixing at a suitable frequency to form an emulsion of resin particles. In embodiments, the resin emulsion thus produced may be utilized to form a toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.