Antimicrobial composite filtering material and method for making the same

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United States of America Patent

PATENT NO 11351491
APP PUB NO 20200086256A1
SERIAL NO

16668887

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Abstract

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A filter media having lignite-derived activated carbon, polyacrylic acid (PAA), a commercially available copper-zinc alloy, and polydiallyldimethylammonium chloride (PolyDADMAC) or Luviquat®, which is Poly[(3-methyl-1-vinylimidazolium chloride)-co-(1-vinylpyrrolidone)], combined and used as suitable replacement for TOG bituminous coal-based activated carbon, silver, and PolyDADMAC. Functional groups in lignite-based activated carbon interact with the polyacrylic acid. Functional groups such as calcium, iron, or aluminum oxide/hydroxide of lignite-based activated carbon interact with PAA, and help hold the PolyDADMAC in place. The additional presence of a copper-zinc alloy enhances the filter anti-microbiological performance.

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Patent Owner(s)

Patent OwnerAddress
KX TECHNOLOGIES LLC269 SOUTH LAMBERT ROAD ORANGE CT 06477

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brigano, Frank A Northford, US 28 240
DeLandra, Carol West Haven, US 2 6
Kareem, Meedia Bridgeport, US 2 6
Kareem, Rezan Bridgeport, US 6 9
Li, William Stamford, US 45 1340
Taylor, Bruce E Cheshire, US 14 135
Wang, Jinwen Orange, US 15 801

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