Liquid purification or separation – Filter – Material
Reexamination Certificate
2006-09-19
2006-09-19
Menon, Krishnan S. (Department: 1723)
Liquid purification or separation
Filter
Material
C210S500240, C264S639000, C264S634000
Reexamination Certificate
active
07108787
ABSTRACT:
A modified hollow-fiber membrane which has improved surface hydrophilicity without increasing the amount of components released therefrom, is less apt to interact with living-body components, does not adsorb proteins, and is less apt to deteriorate in performance. The hollow-fiber membrane has a copolymer of 2-methacryloyloxyethylphosphorylcholine and other polymerizable vinyl monomer held on a surface of the membrane, the copolymer being present on the surface in a higher concentration than in other parts of the membrane. The modified hollow-fiber membrane is useful in medical applications such as hemodialysis and blood filtration and in the medical industry, food industry etc.
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patent: 5368733 (1994-11-01), Nakabayashi et al.
patent: 6204324 (2001-03-01), Shuto et al.
patent: 5-177119 (1993-07-01), None
patent: 7-231935 (1995-09-01), None
patent: 2000037617 (2000-02-01), None
Imamura Kazuo
Ishihara Kazuhiko
Kamenosono Koji
Miyazaki Shinji
Nakabayashi Nobuo
Menon Krishnan S.
NOF Corporation
Young & Thompson
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