Thin film gas separation membranes
US8758491B2 · kind B2 · utility
1Cited by
17References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Mar 7, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1067
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas separation membrane comprises aromatic polyimide polymers that comprise a plurality of repeating units of formula (I)wherein X1 and Ar are herein defined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.