Method of filtering porous particles
US8241828B2 · kind B2 · utility
1Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is a method of manufacturing porous polymer particles comprising: forming a dispersion of porous polymer particles in an external aqueous phase, wherein individual porous particles each comprise a continuous polymer phase and internal pores containing an internal aqueous phase; and filtering the dispersion of porous polymer particles with a filter to remove the external aqueous phase, wherein the filtering is done while agitating the porous particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.