Membrane comprising oxyethylene groups
US8177891B2 · kind B2 · utility
2Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a membrane wherein said membrane comprises a polymerized composition that comprised prior to polymerization at least one type of compound comprising at least 70 oxyethylene groups and at least two polymerizable groups. The invention further relates to the use of this membrane for separating polar gases and vapors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.