Anti-microbial porous component formed of a polymer material...

Liquid purification or separation – Filter – Material

Reexamination Certificate

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Details

C210S488000, C210S490000, C210S500100, C210S500240, C210S500410, C210S510100, C424S400000, C424S404000, C264S628000

Reexamination Certificate

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06986429

ABSTRACT:
The invention concerns an anti-microbial porous part based on a polymeric material grafted at the surface and in its volume with ammonium motifs with anti-microbial and/or bactericidal and/or fungicide activity, preferably benzalkonium. The invention is characterized in that it has a porosity sufficiently high to enable a liquid with compatible viscosity to pass through its structure and sufficiently low to trap contaminating germs within said structure.

REFERENCES:
patent: 3149758 (1964-09-01), Bush et al.
patent: 4335141 (1982-06-01), Grier et al.
patent: 5013459 (1991-05-01), Gettings et al.
patent: 0478445 (1992-04-01), None
patent: 0558357 (1993-09-01), None
patent: 0952168 (1999-10-01), None
patent: 2686610 (1993-07-01), None
patent: 07323206 (1995-12-01), None
patent: WO 95/17152 (1995-06-01), None
“Guidance for protecting Building Environments”, NIOSH publication May 19, 2005 <<http://www.cdc.gov
iosh/docs/2003-136/2003-136c.html#partair>>.
Database WPI; Section Ch, Week 199607; Derwent Publication Ltd., London, GB, AN 1996-064967; XP002157636 & JP07323206 A (Ebara Corp); Dec. 12, 1995.

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