发明名称 |
Method of making membranes for gas separation and the composite membranes |
摘要 |
Composite membranes suitable for separating gas mixtures are made by in situ crosslinking of aminoorganofunctional polysiloxane, 1 to 9 mol percent aminosiloxane units, with diisocyanate on the surface of a highly porous polymer substrate, such as polysulfone. Using the crosslinked polysiloxane as a gutter layer, a gas separating entity can be coated on the gutter layer to make a double layer composite membrane which has a higher separation factor than the crosslinked polysiloxane and can be used effectively for flat sheet membranes, as well as, hollow fiber membranes.
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申请公布号 |
US4602922(A) |
申请公布日期 |
1986.07.29 |
申请号 |
US19850709005 |
申请日期 |
1985.03.07 |
申请人 |
RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK |
发明人 |
CABASSO, ISRAEL;LUNDY, KEVIN A. |
分类号 |
B01D69/12;B01D71/70;(IPC1-7):B01D53/22 |
主分类号 |
B01D69/12 |
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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