High free volume membrane for gas separation
US11717787B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jan 4, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas separation membrane, methods of forming the membrane, and methods of using the membrane for gas separation are provided. An exemplary gas separation membrane includes a cellulosic matrix and a polymer of intrinsic microporosity (PIM). The PIM includes chains coupled by a heat-treating under vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.