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US 2006/0151374 A1Published application
Charged membrane
AssigneePall Corporation
InventorsXiaosong Wu, Joe Kinsey, Michael Ishee, Peter Konstantin, Joel Shertok, Yujing Yang
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AssigneePall Corporation
InventorsXiaosong Wu, Joe Kinsey, Michael Ishee, Peter Konstantin, Joel Shertok, Yujing Yang
Estimating the term…
The present invention provides a hydrophilic charged microporous membrane comprising a porous hydrophobic substrate and a coating comprising a charge-providing agent. The present invention further provides a hydrophilic charged membrane comprising a porous hydrophobic substrate and a hydrophilic charge-providing agent distributed within the substrate. The present invention further provides a filter as well as a filter device comprising the inventive hydrophilic charged membrane. The present invention further provides a process for treating a fluid containing bacterial contaminants such as endotoxins comprising contacting the membrane with the fluid to provide a bacterial contaminant depleted fluid.
A fluid treatment element comprising at least one hydrophilic charged microporous membrane comprising a porous hydrophobic polyethersulfone matrix and a negatively charged charge-providing agent distributed within said porous hydrophobic polyethersulfone matrix, the charge-providing agent comprising a negatively charged polymer comprising a polymerized acrylamido sulfonic acid monomer and a polyacrylate.
A fluid treatment device comprising a housing comprising at least one inlet and at least one outlet and defining a fluid flow path between the inlet and the outlet, and, interposed between the inlet and the outlet and across the fluid flow path, at least one hydrophilic charged microporous membrane comprising a porous hydrophobic polyethersulfone matrix and a negatively charged charge-providing agent distributed within said porous hydrophobic polyethersulfone matrix, the charge-providing agent comprising a negatively charged polymer comprising a polymerized acrylamido sulfonic acid monomer and a polyacrylate.
A fluid treatment device comprising a housing comprising at least one inlet and at least one outlet and defining a fluid flow path between the inlet and the outlet, and, interposed between the inlet and the outlet and across the fluid flow path, a plurality of hydrophilic charged pleated microporous membranes, each membrane comprising a porous hydrophobic matrix and a charge-providing agent distributed within said porous hydrophobic matrix.
A fluid treatment device comprising a housing comprising at least one inlet and at least one outlet and defining a fluid flow path between the inlet and the outlet, and, interposed between the inlet and the outlet and across the fluid flow path, a plurality of hydrophilic charged pleated microporous membranes, each membrane comprising a porous hydrophobic substrate and a coating comprising a positive charge-providing agent comprising quaternized poly(dimethylamine-co-epichlorohydrin).
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A fluid treatment device comprising a housing comprising at least one inlet and at least one outlet and defining a fluid flow path between the inlet and the outlet, and, interposed between the inlet and the outlet and across the fluid flow path, a plurality of hydrophilic charged pleated microporous membranes, each membrane comprising a porous hydrophobic substrate and a coating comprising a positive charge-providing agent comprising epichlorohydrin modified polyethyleneimine.
A hydrophilic charged microporous membrane comprising a porous hydrophobic substrate and a coating comprising a positive charge-providing agent comprising quaternized poly(dimethylamine-co-epichlorohydrin).
A hydrophilic charged microporous membrane comprising a porous hydrophobic substrate and a coating comprising a positive charge-providing agent comprising epichlorohydrin modified polyethyleneimine.
Dependencies are inferred from the claim text.