Filtration membranes and method of making the same
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United States of America Patent
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Feb 13, 1990
Grant Date -
N/A
app pub date -
May 20, 1987
filing date -
May 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Microporous membranes can be prepared which comprise a polymer which is a hydrophobic polymer in bulk form and which has an equilibrium water absorption from about 2% to about 4%, but is hydrophilic when precipitated as a membrane. The membranes are further characterized by high water flow rates at any given bubble point.
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