| 发明名称 |
High permeability polyimide membranes: gas selectivity enhancement through UV treatment |
| 摘要 |
Polyimide membranes are provided that provide extremely high permeability. The polyimides do not contain carbonyl or sulfonyl functional groups. These membranes are useful in separating gases including the separation of gas pairs including carbon dioxide/methane, hydrogen/methane and propylene/propane as well as other gas mixtures. The membrane selectivity can be adjusted by exposure to ultraviolet light. |
| 申请公布号 |
US9308502(B1) |
申请公布日期 |
2016.04.12 |
| 申请号 |
US201414497354 |
申请日期 |
2014.09.26 |
| 申请人 |
UOP LLC |
发明人 |
Liskey Carl W.;Liu Chunqing;Hamoy Michael B. |
| 分类号 |
B01D53/22;B01D71/64;B01D71/56;B01D63/00;B01D69/12;C08G73/10 |
主分类号 |
B01D53/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A UV treated polyimide membrane comprising a polyimide polymer having a formula where m and n are independent integers from 10 to 500 and are in a ratio from 1:10 to 10:1. |
| 地址 |
Des Plaines IL US |
