Liquid purification or separation – Filter – Material
Reexamination Certificate
2007-01-18
2011-10-04
Fortuna, Ana M (Department: 1777)
Liquid purification or separation
Filter
Material
C210S500270, C210S490000, C264S041000, C429S209000
Reexamination Certificate
active
08028842
ABSTRACT:
The present invention provides a membrane, kit, and method of making a hydrophilic-hydrophobic random copolymer membrane. The hydrophilic-hydrophobic random copolymer membrane includes a hydrophilic-hydrophobic random copolymer. The hydrophilic-hydrophobic random copolymer includes one or more hydrophilic monomers having a sulfonated polyarylsulfone monomer and a second monomer and one or more hydrophobic monomers having a non-sulfonated third monomer and a fourth monomer. The sulfonated polyarylsulfone monomer introduces a sulfonate into the hydrophilic-hydrophobic random copolymer prior to polymerization.
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Freeman Benny D.
McGrath James E.
Park Ho Bum
Blank Rome LLP
Fortuna Ana M
Virginia Tech Intellectual Properties Inc.
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