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AssigneesToto Ltd., JHCC Ltd., Okitsumo Incorporated
InventorsKazuo Takahashi, Akira Shimai, Mitsuhide Shimohigoshi, Norio Sendoda, Tatsuhiko Kuga, Koji Okubo, Kazumasa Okita
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A method of producing a photocatalytic coating material which includes: the steps of coating the surface of a base material having hydrophobic substances on its surface with a photocatalytic coating material including at least (a) photocatalytic oxide particles, (b) a hydrophobic-resin emulsion, (c) water, and (d) silica particles, and hardening the coated material. The average sizes of the ingredient (a) and the ingredient (d) are smaller than that of the emulsified particles of the hydrophobic resin dispersed in the ingredient (b), ingredient (a) constitutes 1 to <5% by weight of the total solid matter of the coating material, ingredient (d) constitutes 1 to 90% by weight of a total solid matter of the coating material, and once the coating material is applied onto a base material, the photocatalytic oxide particles and the silica particles move upward and a coating film 1 μm to 1 mm thick is formed.
A method of producing a photocatalytic composite, comprising the steps of:
A photocatalytic coating material, which hardens at ordinary temperature after the photocatalytic coating material has been coated on a surface of a base material, comprising:
Dependencies are inferred from the claim text.