Title:
INORGANIC MATERIAL COMPRISING PHOTOCATALYST LAYER, METHOD FOR PRODUCING SAME, AND PHOTOCATALYST COATING LIQUID FOR INORGANIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/014893
Kind Code:
A1
Abstract:
Disclosed is an inorganic material that is capable of exhibiting excellent photocatalytic gas degradation function, while maintaining wear resistance which inorganic materials are usually required to have. This inorganic material is characterized in that a photocatalyst layer is formed on the surface of an inorganic material base by firing and that the photocatalyst layer contains: photocatalyst particles; zirconia particles having a BET specific surface area of 10 m2/g or more, or crystalline zirconia particles having an average crystallite diameter less than 20 nm; and an alkali silicate. This inorganic material, which is provided with the photocatalyst layer, exhibits excellent photocatalytic gas degradation function, while maintaining wear resistance which inorganic materials are usually required to have.
Inventors:
NAGAE, Tatsushi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
長江 達志 (〒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)
NAKANISHI, Yoshiyuki (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
中西 義行 (〒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)
OYAMA, Soshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
長江 達志 (〒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)
NAKANISHI, Yoshiyuki (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
中西 義行 (〒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)
OYAMA, Soshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
Application Number:
JP2011/066967
Publication Date:
February 02, 2012
Filing Date:
July 26, 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)
DAIICHI KIGENSO KAGAKU KOGYO CO., LTD. (6-38, Hirabayashi Minami 1-chome Suminoe-ku, Osaka-sh, Osaka 25, 〒5590025, JP)
第一稀元素化学工業株式会社 (〒25 大阪府大阪市住之江区平林南１丁目６番３８号 Osaka, 〒5590025, JP)
NAGAE, Tatsushi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
長江 達志 (〒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)
NAKANISHI, Yoshiyuki (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)
DAIICHI KIGENSO KAGAKU KOGYO CO., LTD. (6-38, Hirabayashi Minami 1-chome Suminoe-ku, Osaka-sh, Osaka 25, 〒5590025, JP)
第一稀元素化学工業株式会社 (〒25 大阪府大阪市住之江区平林南１丁目６番３８号 Osaka, 〒5590025, JP)
NAGAE, Tatsushi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
長江 達志 (〒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)
NAKANISHI, Yoshiyuki (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
International Classes:
B01J35/02; B01J21/06; B01J37/08; C09D1/02; C09D5/16; C09D7/12
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)
Claims:
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