Photocatalytic titanium oxide sol, and coating composition and member using the same
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United States of America Patent
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Jun 26, 2012
Grant Date -
Apr 21, 2011
app pub date -
Dec 20, 2010
filing date -
Sep 28, 2006
priority date (Note) -
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Abstract
A photocatalytic coating composition comprising photocatalytic titanium oxide, silver, copper and a quaternary ammonium hydroxide. The photocatalytic coating composition may include a photocatalytic titanium oxide sol dispersed in a binder. Furthermore, a photocatalytic member includes a substrate having a surface coated with the photocatalytic coating composition. The photocatalyst coating composition can contain highly antibacterial silver by skillfully utilizing copper and a quaternary ammonium hydroxide, and accordingly can show an antibacterial effect not only in a dark place simply due to silver, but also a higher antibacterial effect in a conventional application of employing ultraviolet sterilization by concomitantly using the photocatalyst titanium oxide sol according to the present invention and an ultraviolet sterilizer.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- C01C:AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....
- B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
- C01D:COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, ....
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