Gas separation membranes from polymers containing a hydrocarbon backbone and pendant (hydrocarbylamido)alkyl ester moieties
US4695295A · kind A · utility
7Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1986 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Sep 24, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to improved gas separation membranes fabricated from cyclic iminoether modified alpha-olefin/carboxylic acid copolymers. The modified membranes possess improved gas selectivities and/or permeabilities over the unmodified membranes. The membranes may be used to separate gas mixtures containing such gases as oxygen, nitrogen, methane, and carbon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.