Substituted silica
US4894468A · kind A · utility
16Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1987 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | May 1, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/58
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to modified silica, substituted with a variety of substituents. There is provided a product termed primary hydroxyl silica where there are attached to the silica substituents bearing a single hydroxyl group. Furthermore there are provided a wide variety of derivatives of such hydroxy-silica, which are of value in affinity chromatography and for various other uses. The products combine the thermal and mechanical stability of the silica used as carrier with the useful properties of the substituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.