Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process
US7094469B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Sep 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous or non-porous polymeric substrate having its surface modified with an immobilized fluorocarbon such as perfluorocarbon, polymeric composition is provided. The immobilized fluorocarbon is formed from a monomer having formula: [T—SO2Y—SO2T′]−M+ in which —T and T′ are identical or different and comprise an organic radical bearing at least one active polymerization function such as an unsaturation or a ring that can be opened; —M+ comprises an inorganic cation. —Y comprises N or CQ in which Q comprises H, CN, F, SO2R3, substituted or unsubstituted C1-20 alkyl, substituted or unsubstituted C1-20 aryl, substituted or un-substituted C1-20 alkylene, in which the substituent comprises one or more halogens, and in which the chain comprises one or more F, SO2R, aza, oxa, thia or dioxathia substituents; and —R3 comprises F, substituted or unsubstituted C1-20 alkyl, in which the substituted or unsubstituted C1-20 aryl, substituted or unsubstituted C1-20 alkylene, in which the substituent comprises one or more halogens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.