Composite material comprising layered hydrophilic coatings
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United States of America Patent
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Feb 8, 2011
Grant Date -
Jun 8, 2006
app pub date -
Sep 29, 2005
filing date -
Sep 30, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composite material comprising a support member that has a plurality of pores extending therethrough, a first polymer which durably coats the pores of the support member, the first polymer layer having both hydrophobic and hydrophilic properties, and a second polymer layer disposed on the surface of the first polymer layer, the second polymer being more hydrophilic than the first polymer layer. A process for preparing the composite material, and its use as a separation medium.
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