Gas separation membranes based on perfluorinated polymers
US8828121B1 · kind B1 · utility
37Cited by
15References
16Claims
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Key dates
| Filing date | Feb 19, 2014 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein is a process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of perfluorodioxolane monomers. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.