Gas separation membranes from chemically and UV treated polymers of intrinsic microporosity
US9238202B2 · kind B2 · utility
7Cited by
1References
7Claims
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Key dates
| Filing date | Dec 12, 2013 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is a process of making a chemically and UV treated polymer of intrinsic microporosity membrane comprising preparing a polymer of intrinsic microporosity, chemically cross-linking said polymer of intrinsic microporosity with a cross-linking compound to produce a chemically cross-linked polymer of intrinsic microporosity and then treating said chemically cross-linked polymer with UV radiation for a period of time sufficient to provide a product membrane. This product membrane is useful in the separation of C3 and higher hydrocarbons, as well as CO2, from natural gas and other gas streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.