Photocatalyst coating method and photocatalyst coated article produced by such method
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United States of America Patent
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Oct 7, 2008
Grant Date -
Nov 2, 2006
app pub date -
Apr 23, 2004
filing date -
May 6, 2003
priority date (Note) -
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Abstract
Occurrence of a powder dust explosion is prevented in a photocatalyst coating method of forming a titania layer by injection of titanium powder. Powder of titanium or titanium alloy is injected on a surface of a product to be treated composed of metallic product, ceramic, or mixture thereof, with compressed gas having inert gas as a principal component containing oxygen from 0 to 15% by mass, and the titanium in the powder of titanium or titanium alloy is diffused and oxidized on the surface of the product to be treated to form a titania layer.
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