PHOTOCATALYTIC PAINT

Title:

PHOTOCATALYTIC PAINT

Document Type and Number:

WIPO Patent Application WO/2011/118857

Kind Code:

A1

Abstract:

Disclosed is a photocatalyst that has excellent elasticity. In particular, the disclosed photocatalytic paint ensures the adhesiveness of a base and a photocatalytic layer, even when cracks form in the photocatalyst coating due to seasonal variations in the temperature of the coating surface, and considerably suppress the propagation and development of these cracks in both the surface and the base. The disclosed photocatalytic paint is provided with a base, a photocatalytic layer that includes the photocatalyst, and an intermediate layer that is provided so as to be interposed between the base and the photocatalytic layer and in contact with the underside of the photocatalytic layer. The intermediate layer includes a resin component, which has a silicone component and a flexible non-silicone component. The loss tangent of the intermediate layer at 25 °C, measured by a solid-matter viscoelasticity measuring device, is between 0.2 and 1.5. At least one spectral peak of the temperature change curve of the loss elasticity ratio, which is measured by a solid-matter viscoelasticity measuring device that is based on JIS K7244-4 for the intermediate layer, is greater than -80 °C and up to 30 °C.

Inventors:

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)
IKEDA, Takeshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
池田猛 (〒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)
NOSE, Ritsuko (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
野瀬律子 (〒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)
URA, Osamu (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)

Application Number:

JP2011/058378

Publication Date:

September 29, 2011

Filing Date:

March 25, 2011

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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)
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)
IKEDA, Takeshi (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
池田猛 (〒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)
NOSE, Ritsuko (1-1 Nakashima 2-chome, Kokurakita-ku, Kitakyushu-sh, Fukuoka 01, 〒8028601, JP)
野瀬律子 (〒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; B32B9/00; C09D5/00; C09D5/16; C09D7/12; C09D183/04

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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