Porous membrane having hydrophilic surface and process
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United States of America Patent
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-
Oct 21, 1986
Grant Date -
N/A
app pub date -
Nov 30, 1984
filing date -
Nov 30, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composite porous membrane is formed from a porous polymeric membrane having desired bulk properties on which is directly coated a cross-linked polymer having desired surface properties. The composites membrane retains the porosity of the porous polymeric membrane. A preferred composite porous membrane is formed from a porous polyvinylidene fluoride to which is directly coated with a polymer formed of a cross-linked hydroxyalkyl acrylate.
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