发明名称 |
alpha , beta , beta -trifluorostyrene-based composite membranes |
摘要 |
A composite membrane is provided in which a porous substrate is impregnated with a polymeric composition comprising various combinations of alpha , beta , beta -trifluorostyrene, substituted alpha , beta , beta -trifluorostyrene and ethylene-based monomeric units. Where the polymeric composition includes ion-exchange moieties, the resultant composite membranes are useful in electrochemical applications, particularly as membrane electrolytes in electrochemical fuel cells.
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申请公布号 |
US5985942(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19980186449 |
申请日期 |
1998.11.05 |
申请人 |
BALLARD POWER SYSTEMS INC. |
发明人 |
STECK, ALFRED E.;STONE, CHARLES |
分类号 |
B01D69/02;B01D69/12;B01D71/28;B01D71/32;B32B27/30;C08F8/00;C08F12/30;C08F14/18;C08F212/14;C08J5/22;G01N27/40;G01N27/407;H01B1/06;H01M2/16;H01M8/02;H01M8/10;(IPC1-7):C08J5/22 |
主分类号 |
B01D69/02 |
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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