Surface modified porous membrane and process
AssigneeMillipore Corporation
InventorWilson Moya
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Abstract
A porous membrane product is provided which is formed from a porous membrane substrate having its surface completely modified with a perfluorocarbon copolymer composition. The porous membrane product has substantially the same permeability as the porous membrane substrate.
Claims14
A modified porous membrane product comprising a thin nondewetting porous polymeric substrate having its entire surface completely modified with a bound perfluorocarbon copolymer composition which is directly bonded to said substrate thereby to render the entire portion of said surface nondewetting, said bound perfluorocarbon copolymer composition containing hydrophilic functional groups and being substantially insoluble in a solvent or diluent for solvated unbound perfluorocarbon copolymer composition and said modified porous membrane product having substantially the same permeability as the porous polymeric substrate.
Dependencies are inferred from the claim text.