Liquid purification or separation – Filter – Material
Reexamination Certificate
2005-07-05
2005-07-05
Walker, W. L. (Department: 1723)
Liquid purification or separation
Filter
Material
C210S500230, C210S500270, C210S490000, C210S504000, C428S474400, C428S475500
Reexamination Certificate
active
06913694
ABSTRACT:
A selective membrane having a high fouling resistance. In one embodiment, the selective membrane is a composite polyamide reverse osmosis membrane in which a hydrophilic coating has been applied to the polyamide layer of the membrane, the hydrophilic coating being made by (i) applying to the membrane a quantity of a polyfunctional epoxy compound, the polyfunctional epoxy compound comprising at least two epoxy groups, and (ii) then, cross-linking the polyfunctional epoxy compound in such a manner as to yield a water-insoluble polymer.
REFERENCES:
patent: 4778596 (1988-10-01), Linder et al.
patent: 4915839 (1990-04-01), Marinaccio et al.
patent: 5178766 (1993-01-01), Ikeda et al.
patent: 6177011 (2001-01-01), Hachisuka et al.
patent: 6245234 (2001-06-01), Koo et al.
patent: 6280853 (2001-08-01), Mickols
Hong Sung Pyo
Kang Jin Woo
Kim Nowon
Koo Ja-Young
Kriegsman & Kriegsman
Menon Krishnan S
Saehan Industries Incorporation
Walker W. L.
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