发明授权
- 专利标题： Polybenzoxazole membranes
- 专利标题（中）： 聚苯并恶唑膜
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申请号： US12879208申请日： 2010-09-10
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公开(公告)号： US08931646B2公开(公告)日： 2015-01-13
- 发明人: Chunqing Liu , Raisa Minkov , Man-Wing Tang , Lubo Zhou , Jeffery C. Bricker
- 申请人： Chunqing Liu , Raisa Minkov , Man-Wing Tang , Lubo Zhou , Jeffery C. Bricker
- 申请人地址： US IL Des Plaine
- 专利权人： UOP LLC
- 当前专利权人： UOP LLC
- 当前专利权人地址： US IL Des Plaine
- 主分类号： B01D71/64
- IPC分类号： B01D71/64 ; B01D71/28 ; B01D53/22 ; B01D67/00 ; B01D71/62 ; B01D71/82 ; B01D69/00 ; B01D61/36
摘要：
The present invention discloses a blends of an aromatic polyimide polymer and a polymer containing aromatic sulfonic acid groups that can be converted into polybenzoxazole (PBO) membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO2/CH4 and H2/CH4 separations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.
公开/授权文献
- US20110072973A1 POLYBENZOXAZOLE MEMBRANES 公开/授权日：2011-03-31
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