Matsushita Electric Works, Ltd.

Junko Ikenaga

Koichi Takahama

Takeyuki Yamaki

Hirotsugu Kishimoto

Minoru Inoue

Toshiharu Sako

Shoichi Nakamoto

Akiharu Goto

The present invention provides a functional coated product having excellent adhesion properties of a coating to a substrate, hardly causing the deterioration of the substrate and the coating due to a photocatalyst, hardly having dirt because the smoothness of the surface coating is high, and having high photocatalytic action; a method for producing the same and the use thereof. The coated product of the present invention has the first coating layer comprising a cured coating made of an acryl-modified silicone resin coating material, which is formed on the surface of the substrate, and the second coating layer comprising a cured coating made of a functional coating material containing the photocatalyst, which is formed con the surface of the first coating layer. When producing such a coated product, the acryl-modified silicone resin coating material is applied to the surface of the substrate as the first coating layer and it is semi-cured. After that, a photocatalyst-containing functional coating material is applied to the surface of this first coating layer in a semi-cured condition and then both of the coating layers are cured. Thereby, a coated product having a higher effect can be obtained.

Functional coated product and process for producing the same and the use thereof

The present invention provides a process for forming a hydrophilic inorganic coated film on a surface of a base material, the process comprising the steps of: (1) preparing an inorganic coating composition which contains, as a major component, a silicone resin obtained by hydrolyzing and condensation-polymerizing only the tetra-functional alkoxysilane represented by the formula: Si(OR),&lsqb;wherein R represents an alkyl group having carbon atoms up to and including 7 or an aryl group&rsqb;, and has a total solid content of not more than 5% by weight; (2) applying the inorganic coating composition to a surface of the base material to form a coated layer; and (3) drying and curing the coated layer to form a cured coated film having a thickness of 0.01 to 0.5 &mgr;m. The hydrophilic inorganic coated film formed by the process of the present invention is highly hydrophilic just after the film is formed, even in the case that it is not irradiated with ultraviolet rays.

Hydrophilic inorganic coating film and composition made from alkoxysilane and silica

Antifouling silicone emulsion coating-composition, process for producing the same and antifouling article coated therewith

Functional coated product and process for producing the same and the use

Growing community of inventors

Ikeda, Japan

Junko Ikenaga