Toner processes
US9195155B2 · kind B2 · utility
0Cited by
48References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for preparing toner particles is disclosed. In embodiments, a suitable method includes aggregating a mixture comprising at least one resin, an optional pigment and an optional wax to form aggregated particles, freezing aggregation of particles by adjusting the pH of the aggregated particles to a freezing aggregation pH; coalescing the aggregated particles to form toner particles at a first pH that is higher than the freezing aggregation pH; and recovering the toner particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.