POROUS COMPOSITE MEMBRANE

POROUS COMPOSITE MEMBRANE

Embodiments of the invention include a liquid filter member that includes a layer of polymeric nano fibers overlying a microporous membrane. A pressure drop of the filter member is substantially the same, or is less than, a pressure drop of the microporous membrane and the filter member has a partic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHOI, Wai-ming, KATAOKA, Kiminori
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:Embodiments of the invention include a liquid filter member that includes a layer of polymeric nano fibers overlying a microporous membrane. A pressure drop of the filter member is substantially the same, or is less than, a pressure drop of the microporous membrane and the filter member has a particle retention in the presence of surfactant that is greater than the particle retention of the microporous membrane alone under the same test conditions.