Novel silicon-containing copolymer, ultrathin solid membrane composed of said copolymer, use of said solid membrane for concentrating a specified gas in a gaseous mixture, and process for producing said solid membrane
US4393113A · kind A · utility
26Cited by
8References
13Claims
0Family size
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Key dates
| Filing date | Jun 3, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Jun 3, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An ultrathin solid membrane is composed substantially of a silicon-containing copolymer consisting substantially of recurring units derived from a silicon-containing allyl monomer and an ethylenically unsaturated monomer and/or a diene monomer. The ultrathin solid membrane is useful for obtaining a specified gas, such as oxygen, in a concentrated state, from a mixture of two or more gases, such as air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.