Functionalised chromatography medium comprising polymer nanofibres and process of preparation thereof
US11097252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Jan 18, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K1/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a functionalised polymeric chromatography medium, prepared by a process which comprises (i) providing a substrate formed of one or more polymer nanofibres, (ii) grafting one or more neutral polymer chains from the substrate, and (iii) contacting the grafted product with a reagent which functionalises the product of step (ii) as a chromatography medium, wherein step (ii) comprises reacting a plurality of compounds of formula and/or its enantiomers, and/or its derivatives of formula (I) and/or enantiomers and/or diastereomers thereof: with one or more functional groups present on the nanofibre substrate, wherein R1, R2, R3, R4 and R5 may be the same or different, and are chosen from H, halogen, C1-C4 alkyl, or C1-C4 alkoxy provided that at least one of R1, R2, R3, R4 or R5 is not hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.