Thermally responsive polymer monoliths
US5929214A · kind A · utility
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19Claims
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Key dates
| Filing date | Feb 25, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Porous polymer monoliths are made thermally responsive by functionalizing/grafting the pores with thermally responsive polymers and copolymers. Depending on the reaction conditions employed, the grafted polymer can either completely block flow through micrometer-sized pores in the monoliths or control the flow rate through the monoliths. The grafted monoliths are useful as thermal gates, thermal valves, and for isocratic hydrophobic interaction chromatography of proteins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.