Synthesis of porous inorganic particles by polymerization-induced colloid aggregation (PICA)
US5540834A · kind A · utility
26Cited by
23References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Aug 23, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides improved methods for the preparation of porous inorganic particles. The methods involve combining an aqueous sol containing a colloidal dispersion of inorganic particles with a polymerizable organic material, polymerizing this material, and thereby forming aggregates of colloidal particles and polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.