Title:
USE OF COMPOSITE MATERIAL EQUIPPED WITH PHOTOCATALYST LAYER
Document Type and Number:
WIPO Patent Application WO/2012/011415
Kind Code:
A1
Abstract:
Disclosed is a use of a composite material equipped with a transparent photocatalyst layer which renders the appearance of the base utilizable and which performs the function of photocatalytic decomposition while being effectively inhibited, over a long period, from suffering the appearance change caused by silicone fouling. The composite material is equipped with a photocatalyst layer, and the photocatalyst layer comprises photocatalyst particles and inorganic oxide particles, the total amount of the photocatalyst particles and the inorganic oxide particles being 80-100 mass% with respect to the whole photocatalyst layer. The particulate components of the photocatalyst layer have a number-average particle diameter less than 90 nm, the particle diameter being calculated through measurements of the lengths of any 100 particles present in a field of view obtained with a scanning electron microscope and having a magnification of 200,000 diameters. The photocatalyst layer is transparent and has a film thickness of 3 µm or less. The photocatalyst of the photocatalyst layer is photoexcited by the action of the sun to decompose substances, and silicone fouling of the surface of the photocatalyst layer is reduced or prevented.
Inventors:
HAYAKAWA, Makoto (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
早川 信 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
TERASAKI, Hiroshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
寺崎 浩 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
KAMESHIMA, Junji (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
亀島 順次 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
FUJII, Hiroyuki (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
早川 信 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
TERASAKI, Hiroshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
寺崎 浩 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
KAMESHIMA, Junji (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
亀島 順次 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
FUJII, Hiroyuki (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
Application Number:
JP2011/065937
Publication Date:
January 26, 2012
Filing Date:
July 13, 2011
Export Citation:
Assignee:
TOTO LTD. (1-1 Nakashima 2-chome, Kokurakita-ku Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
ＴＯＴＯ株式会社 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 Fukuoka, 〒8028601, JP)
HAYAKAWA, Makoto (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
早川 信 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
TERASAKI, Hiroshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
寺崎 浩 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
KAMESHIMA, Junji (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
亀島 順次 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
ＴＯＴＯ株式会社 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 Fukuoka, 〒8028601, JP)
HAYAKAWA, Makoto (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
早川 信 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
TERASAKI, Hiroshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
寺崎 浩 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
KAMESHIMA, Junji (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
亀島 順次 (〒01 福岡県北九州市小倉北区中島２丁目１番１号 ＴＯＴＯ株式会社内 Fukuoka, 〒8028601, JP)
International Classes:
B01J35/02; B01J31/38
Attorney, Agent or Firm:
KONNO, Akio (Chiyoda Patent and Trademark Attorneys, Yurakucho Bldg. 4F 10-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 06, 〒1000006, JP)
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Claims: