Continuous coalescence processes
US9874825B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2017 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2215/0477
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. The aggregated particle slurry is heated, then coalesced by raising the pH. The coalesced particles are homogenized and exit as a coalesced particle slurry. A multi-screw extruder is used for the coalescing. These processes are useful for providing coalesced particles such as toner compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.