发明名称 |
POROUS POLYMERIC MEMBRANE COMPRISING VINYLIDENE FLUORIDE |
摘要 |
A process for producing a porous polymeric structure which process comprises preparing a solution comprising a polymer which comprises vinylidene fluoride in a solvent/non-solvent mixture; holding the solution at an elevated temperature until the polymer is completely solvated; casting the solution to form a thin layer; and drying the thin layer to form a membrane. The polymer is dispersed in the non-solvent before addition of the solvent, when preparing the solution, to prevent microgel formation. The prolonged solvation at elevated temperature provides a stable solution, and enables membranes of controlled porosity to be formed. |
申请公布号 |
WO2004009684(A1) |
申请公布日期 |
2004.01.29 |
申请号 |
WO2003GB02682 |
申请日期 |
2003.06.23 |
申请人 |
AEA TECHNOLOGY BATTERY SYSTEMS LIMITED;MATTINGLEY, NEVILLE, JOHN;KRONFLI, ESAM |
发明人 |
MATTINGLEY, NEVILLE, JOHN;KRONFLI, ESAM |
分类号 |
C08J9/28;B01D67/00;B01D71/34;B32B27/30;C08J5/22;H01M8/02;H01M8/10;H01M10/0565 |
主分类号 |
C08J9/28 |
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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