发明授权
US08394182B2 Crosslinked membrane and polymer for making same and method of using membrane
有权
用于制造相同的交联膜和聚合物以及使用膜的方法
- 专利标题： Crosslinked membrane and polymer for making same and method of using membrane
- 专利标题（中）： 用于制造相同的交联膜和聚合物以及使用膜的方法
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申请号： US12972301申请日： 2010-12-17
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公开(公告)号： US08394182B2公开(公告)日： 2013-03-12
- 发明人: William J. Koros , David Wallace , John Wind , Claudia Staudt-Bickel , Stephen J. Miller
- 申请人： William J. Koros , David Wallace , John Wind , Claudia Staudt-Bickel , Stephen J. Miller
- 申请人地址： US TX Austin US CA San Ramon
- 专利权人： The University of Texas System,Chevron U.S.A. Inc.
- 当前专利权人： The University of Texas System,Chevron U.S.A. Inc.
- 当前专利权人地址： US TX Austin US CA San Ramon
- 代理商 Richard J. Schulte
- 主分类号： B01D53/22
- IPC分类号： B01D53/22 ; B01D69/08 ; B01D71/40
摘要：
A composition of and a method of making high performance crosslinked membranes are described. The membranes have a high resistance to plasticization by use of crosslinking. The preferred polymer material for the membrane is a polyimide polymer comprising covalently bonded ester crosslinks. The resultant membrane exhibits a high permeability of CO2 in combination with a high CO2/CH4selectivity. Another embodiment provides a method of making the membrane from a monesterified polymer followed by final crosslinking after the membrane is formed.
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