Antimicrobial composition supported on a honeycomb shaped substrate
AssigneeParker Holding Services Corp.
InventorsYen-Kuen Shiau, Chung-Hsun Wu
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Abstract
An inorganic antimicrobial composition has the formula AB2 O4, wherein A and B are low temperature far infrared irradiating metals, A is Mg, Zn, Mn, Ni, Co, or Fe(II), B is Al, Cr(III), Mn(III) or Fe(III), and O is oxygen. An antimicrobial article is made by coating said composition on a porous honeycomb-shaped substrate. An organic antimicrobial article is made from a quaternary ammonium salt coated on a porous honeycomb-shaped substrate. Processes of making the antimicrobial articles are provided.
Claims19
An antimicrobial metal composition having the formula AB2O4, wherein A is selected from the group consisting of magnesium, divalent iron, manganese, nikel, cobalt and zinc;
- B is selected from the group consisting of aluminum, trivalent iron, trivalent manganese and trivalent chromium;
- and O is oxygen.
A porous antimicrobial article comprising a honeycomb-shaped substrate and an antimicrobial component coated thereon.
A process for producing a porous antimicrobial article comprising
- mixing a solution of 10-75 weight % of a metal composition having the formula AB2O4, wherein A is selected from the group consisting of magnesium, divalent iron, manganese, nickel, cobalt and zinc;
- B is selected from the group consisting of aluminum, trivalent iron, trivalent manganese and trivalent chromium;
- and O is oxygen, with an alkali silicate in sufficient water to form a slurry;
- impregnating a preformed honeycomb-shaped substrate in said slurry;
- and
- calcining the resulting coated substrate at 700-1100° C.
A process for producing an antimicrobial article comprising:
- a, dissolving a predetermined amount of quaternary ammonium salt in water;
- to make a solution of about 0.05 to 20 wt. % of the salt
- b, mixing a ground calcining aid with a solvent to make a solution, wherein said calcining aid to solvent ratio is from 1:1 to 1:10;
- c, soaking a preformed honeycomb-shaped substrate into the solution of b;
- followed by drying and calcining at 400-1500° C.;
- d, impregnating the calcined honeycomb-shaped substrate with the salt solution of a, and
- e, drying the impregnated substrate at 50 to 200° C.
A process of producing a honeycomb-shaped substrate comprising coating a polymeric honeycomb shape substrate with material selected from a group consisting of siliceous clay, silicon oxide, ceramic, and the combination thereof.
Dependencies are inferred from the claim text.