Taiyo Kogyo Corporation

Kabushiki Kaisha Toshiba

Toshiba Home Appliances Corporation

Toshiba Consumer Electronics Holdings Corporation

Takayuki Nakata

Hiroshi Toyoda

Kazuhiro Abe

Akira Fujishima

Kazuhito Hashimoto

Eiichi Okamoto

Hiroya Ishikawa

Kosaku Adachi

Keishi Matsui

Tatsuya Ozaki

Koichiro Ochiai

Noriaki Sakamoto

Yuji Emura

The present invention provides a new photocatalyst sheet in which the substrates coated with fluorocarbon resin are readily weldable mutually, and also of the high antifouling and water-repellant property by coating the outermost surface of film/fabric structure with fluorocarbon resin containing a photocatalyst and a photocatalyst sheet comprises a substrate (), a first fluorocarbon resin layer () coated on said substrate (), a second fluorocarbon resin layer () coated on said first fluorocarbon resin layer (), and a third fluorocarbon resin layer () containing photocatalyst coated on said second fluorocarbon resin layer (). The melting point of the first fluorocarbon resin layer () may be higher than the melting points of the second and the third fluorocarbon resin layers (), ().

Photocatalyst sheet and method of producing same

The present invention provides the photocatalyst sheet and the methods of welding and manufacturing the same, by which the substrate and resin of the photocatalyst-containing layer are not decomposed by photocatalyst particles, mutual welding of sheets is easy, and the photo-redox effect of a photocatalyst can be obtained. A photocatalyst sheet () comprises a substrate () such as fiber and coated layers () on both sides of the substrate (), and the coated layer () constitutes the photocatalyst-containing layer in which apatite-coated photocatalyst particles () are dispersed and fixed with resin. Here, the coated photocatalyst particles () on the surface of the photocatalyst-containing layer are so fixed as to have the parts exposed from the surface of the photocatalyst-containing layer. In case that photocatalyst sheets () are mutually welded, the photocatalyst-containing layer of each photocatalyst sheet () is not removed, and its surface is mutually held, and welded together by thermal welding or others.

Photocatalyst sheet and methods of welding and manufacturing the same

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Osaka, Japan

Takayuki Nakata