发明名称 |
Ozone treatment of surface of membrane to improve permselectivity |
摘要 |
A method for preparing a surface modified gas separation membrane, wherein said membrane has improved permselective properties for separating a mixture of gases as compared to the unmodified membrane, is described. The method comprises coating a surface unmodified gas separation membrane with a solution of a coating material, wherein the coating material is an organic material having at least one site of unsaturation; heating the coated gas separation membrane; and contacting the heated coated gas separation membrane with at least one oxidizing agent for a time effective to surface modify the gas separation membrane to produce the surface modified gas separation membrane having improved permselectivity.
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申请公布号 |
US6156381(A) |
申请公布日期 |
2000.12.05 |
申请号 |
US19980226524 |
申请日期 |
1998.12.30 |
申请人 |
MG GENERON |
发明人 |
LEONG, PAMELA J.;COAN, FREDERICK L.;JENSVOLD, JOHN A.;JEANES, THOMAS O. |
分类号 |
B01D67/00;(IPC1-7):B05D5/00;B05D3/02;B05D7/22 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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