Porous polymer particles and method for preparation thereof
US6726991B2 · kind B2 · utility
10Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Oct 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Core/shell particles having a core of a porous polymer and a shell of an inorganic colloid, the inorganic colloid having a median diameter of less than about 0.07 &mgr;m, and the core/shell particles having a median diameter of less than about 50 &mgr;m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.