发明名称 |
Composite membranes |
摘要 |
The present invention provides a composite membrane comprising a porous support layer and a selective layer comprising a vinylacetate polymer. The invention also provides a process for preparing a vinylacetate polymer selective layer on a porous support by depositing a colloidal dispersion having colloid particles of the vinylacetate polymer on the porous support followed by annealing the deposited colloids to form a selective layer. The membranes are useful for separation of gas or liquid or vapor mixtures.
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申请公布号 |
US6688477(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20010847897 |
申请日期 |
2001.05.03 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
KALTHOD DILIP GURUDATH |
分类号 |
B01D53/22;B01D53/26;B01D61/36;B01D67/00;B01D69/12;B01D71/16;B01D71/26;B01D71/28;B01D71/30;B01D71/38;B01D71/40;B01D71/42;B01D71/50;B01D71/64;B01D71/68;(IPC1-7):C02F1/44;R29G65/00 |
主分类号 |
B01D53/22 |
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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