Patent ID: 6455465
Filing Date: 2002-09-24
Classification: B01J,Y10S,Y10T

Abstract:
A photocatalyst coated product comprising:a photocatalytic titania layer formed on a surface of a product to be treated, the product to be treated being one of a metal product, a ceramic and a fixture thereof, wherein said product is treated by effecting diffusion d oxidation of one of a titanium and titanium alloy-containing powder over the surface of the product to be treated to form said titania layer, by injecting the one of the titanium and titanium alloy-containing powder against the surface of the product to be treated at an injection velocity of at least 80 m/sec and under an injection pressure of at least 0.29 MPa, wherein the one of titanium and titanium alloy-containing powder is heated by a thermal energy generated by the difference between a velocity of the powder before impingement upon the surface of the product to be treated and a velocity of the powder after the impingement, wherein a localized temperature rise occurs in the one of titanium an titanium alloy-containing powder near the surface of the product to be treated, wherein the one of titanium and titanium alloy-containing powder is heated on the surface of the product to be treated to effect activated adsorption of the one of titanium and titanium alloy-containing powder by the product to be treated and diffusion therein, and that the one of titanium and titanium alloy-containing powder further reacts with the atmospheric oxygen to be oxidized wherein the titania layer is formed, and wherein the photocatalyst coated product has a decomposing function, including deodorizing, antibacterial and soil-resisting actions, and a hydrophilic function.