Anti-fogging element and method for forming the same
First Claim
1. An anti-fog element comprising a substrate, a photocatalyzer film formed on the surface of the substrate, and a porous hydrophilic film formed thereon, a titanium peroxide solution obtainable by causing a titanium peroxide gel (orthotitanic acid) to act with hydrogen peroxide being used as a material for the photocatalyzer film.
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Accused Products
Abstract
In an anti-fog element comprising a substrate, a photocatalyzer film formed on the surface of the substrate, and a porous hydrophilic film formed thereon, and a process for forming the same, a titanium peroxide solution obtainable by causing a titanium peroxide gel (orthotitanic acid) to act with hydrogen peroxide is used as a material for the photocatalyzer film. When the titanium peroxide solution is used to form a photocatalyzer film, an anatase type titanium dioxide film can be obtained at a low temperature, for example, of 200° C. Consequently, in the course of the fabrication of the anti-fog element, any alkaline substance is difficult to be dispersed into the photocatalyzer film and, thus, even if a soda lime glass is used as the substrate, no film for preventing the alkali dispersion is required. For this reason, no photocatalytic property is impaired even if no film for preventing the alkali dispersion is provided. Due to the treatment at a low temperature, it is difficult for the reflecting film to be oxidized, not impairing the reflecting ratio. What is more, the treatment at a low temperature saves energy and reduces the cost, leading decreased cost.
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Citations
10 Claims
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1. An anti-fog element comprising a substrate, a photocatalyzer film formed on the surface of the substrate, and a porous hydrophilic film formed thereon,
a titanium peroxide solution obtainable by causing a titanium peroxide gel (orthotitanic acid) to act with hydrogen peroxide being used as a material for the photocatalyzer film.
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9. A process for forming an anti-fog element comprising a substrate, a photocatalyzer film formed on the surface of the substrate, and a porous hydrophilic film formed thereon,
using a titanium peroxide solution obtainable by causing a titanium peroxide gel (orthotitanic acid) to act with hydrogen peroxide as a material for the photocatalyzer film.
Specification