High surface area fiber media with nano-fibrillated surface features
US10449517B2 · kind B2 · utility
3Cited by
38References
11Claims
0Family size
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Key dates
| Filing date | Aug 19, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N7/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Chromatography media including a high surface area thermoplastic porous nanofiber and an ion-exchange ligand functionality on the surface of the fiber. The porous nanofibers display a convoluted structure that is comprised of discrete bundles of highly entangled nanofibrils that may be fibrillated or ridged. The porous fibers can be prepared through the extraction of a dissolvable mineral or polymeric porogen that is embedded into the fiber during its manufacture in a melt extrusion process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.