Surface-modified post-crosslinked adsorbents and a process for making the surface modified post-crosslinked adsorbents
US5683800A · kind A · utility
22Cited by
8References
5Claims
0Family size
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Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249988
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a surface-modified polymeric adsorbent material comprising a porous post-crosslinked polymer as a substrate and at least one surface-modifying polymer. The porous post-crosslinked polymer comprises a polymer of at least one monoethylenically unsaturated monomer, wherein the polymer has been post-crosslinked in a swollen state in the presence of a Friedel-Crafts catalyst. A process for preparing the surface-modified polymeric adsorbent materials, and the use of these materials in the separation of organic compounds, enantioselective synthesis and resolution of racemic mixtures are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.