Photocatalytically hydrophilifiable coating composition
First Claim
1. A composition for hydrophilifying the surface of a member, comprising at least(a) photocatalytic particles of a metallic oxide,(b) a silicon-based component selected from the group consisting of silica fine particles, a precursor capable of forming a silica film and combinations thereof, and(c) a solvent,wherein the total content of the photocatalytic particles and the silicon in the silicon-based component in the composition is 0.01 to 1% by weight.
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Accused Products
Abstract
A composition is disclosed which can hydrophilify the surface of a member to impart an antifogging property to the surface of the member. The composition for hydrophilifying the surface of the member comprises at least (a) photocatalytic particles of a metallic oxide, (b) a precursor capable of forming a silicone resin film or a precursor capable of forming a silica film, and (c) a solvent, the total content of the photocatalytic particle and the solid matter of the precursor in the composition being 0.01 to 5% by weight. The hydrophilic property can be imparted simply by applying the composition onto a member and drying or heating the composition applied to the member. The resultant hydrophilic thin film is transparent and, hence, does not sacrifice the transparency and appearance of a member required to be transparent. Further, the surface of a member with the above composition applied thereto has such a property that water droplets adhered thereon can be immediately removed by vaporization and the surface is less likely to be soiled and, even when a contaminant is adhered thereon, can easily release the contaminant therefrom.
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Citations
22 Claims
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1. A composition for hydrophilifying the surface of a member, comprising at least
(a) photocatalytic particles of a metallic oxide, (b) a silicon-based component selected from the group consisting of silica fine particles, a precursor capable of forming a silica film and combinations thereof, and (c) a solvent, wherein the total content of the photocatalytic particles and the silicon in the silicon-based component in the composition is 0.01 to 1% by weight.
Specification