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Patent Searching and Data


Title:
PHOTOCATALYTIC COATING SOLUTION AND PHOTOCATALYTIC THIN FILM PRODUCED FROM SAME
Document Type and Number:
WIPO Patent Application WO/2012/053566
Kind Code:
A1
Abstract:
Disclosed are: a photocatalytic coating solution; and a photocatalytic thin film produced from the photocatalytic coating solution. The coating solution comprises (A) photocatalyst particles and (B) a binder component and optionally (C) a water-soluble Lewis acid compound. The binder component contained as the component (B) comprises a hydrolysis-condensation product produced by hydrolyzing a hydrolysable silicon compound in a mixed solvent composed of water and a polar organic solvent in the presence of a basic compound. The photocatalyst particles contained as the component (A) are dispersed in the coating solution, and the coating solution has a pH value ranging from 5-8. The coating solution has good potlife and good coatability, can be dried and cured at a relatively low temperature, and enables the formation of a hydrophilic thin film having high transparency and a long-lasting catalytic activity.

Inventors:
INOUE TOMOHIRO (JP)
FURUDATE MANABU (JP)
EGUCHI YOSHITSUGU (JP)
AMANO TADASHI (JP)
Application Number:
PCT/JP2011/074074
Publication Date:
April 26, 2012
Filing Date:
October 19, 2011
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO (JP)
INOUE TOMOHIRO (JP)
FURUDATE MANABU (JP)
EGUCHI YOSHITSUGU (JP)
AMANO TADASHI (JP)
International Classes:
B01J35/02; B01J37/02; C09D5/16; C09D7/12; C09D183/04
Domestic Patent References:
WO2007097284A12007-08-30
Foreign References:
JP2002146283A2002-05-22
JPH10502458A1998-03-03
JP2005139314A2005-06-02
JP2001149855A2001-06-05
JP2004209343A2004-07-29
Attorney, Agent or Firm:
IWAMIYA, Shushi (JP)
Shushi Iwamiya (JP)
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Claims: