Swellable particles
US8686096B2 · kind B2 · utility
10Cited by
33References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2006 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jul 9, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D15/3804
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is provided a method for making swellable particles, said method comprising mixing initial particles, at least one monomer, at least one initiator, and at least one chain-transfer agent, wherein said mixing is performed under conditions in which said monomer is capable of forming oligomer or polymer or a mixture thereof. Also provided are swellable particles made by that method. Further provided is a method of making polymeric resin particles comprising mixing at least one subsequent monomer to those swellable particles and polymerizing said subsequent monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.