Process for producing composite membranes
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United States of America Patent
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May 7, 1996
Grant Date -
N/A
app pub date -
Mar 31, 1994
filing date -
Mar 31, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is provided for fabricating composite membranes by coating a porous substrate with a solution of selective polymer. A reserve of non-solvent medium is incorporated in the substrate pore network which allows the substrate to be successfully coated with a polymer solution formulated in a solvent medium which is also a solvent for the substrate material.
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