Modified hollow-fiber membrane

Liquid purification or separation – Filter – Material

Reexamination Certificate

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Details

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.

REFERENCES:
patent: 5104729 (1992-04-01), Stedronsky
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

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