Toner processes utilizing a defoamer as a coalescence aid for continuous and batch emulsion aggregation
US8313884B2 · kind B2 · utility
2Cited by
57References
20Claims
0Family size
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Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09733
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for making toner particles is provided. In embodiments, a suitable process includes adding a defoamer to an emulsion utilized to form toner particles. Utilization of the defoamer allows for a reduction in the overall aggregation/coalescence cycle time and slurry viscosity, while producing a toner with improved GSDs, low coarse and target circularities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.