GLASS ARTICLE PROVIDED WITH PHOTOCATALYST FILM

Title:

GLASS ARTICLE PROVIDED WITH PHOTOCATALYST FILM

Document Type and Number:

WIPO Patent Application WO/2013/114894

Kind Code:

A1

Abstract:

The present invention provides a glass article, which is provided with a photocatalyst film (1) that contains silicon oxide particles (6) and titanium oxide particles (5), and which has improved reflection suppressing function and further increased transmittance, while maintaining the film strength and photocatalytic function of the photocatalyst film (1). The photocatalyst film (1) contains 72-79% by mass of the silicon oxide particles, 13-18% by mass of the titanium oxide particles and 8-14% by mass of a binder component that is mainly composed of silicon oxide, respectively relative to the total mass of the silicon oxide particles (6), the titanium oxide particles (5) and the binder component. The silicon oxide particles have an average particle diameter of 30-200 nm; the titanium oxide particles have an average particle diameter of 5-20 nm; and the average particle diameter of the silicon oxide particles is not less than 5 times the average particle diameter of the titanium oxide particles. If T is the film thickness of the photocatalyst film, 80% or more of the titanium oxide particles are concentrated in a region within 0.6T from the surface of a glass plate (2).

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Inventors:

YABUTA TAKESHI (JP)
KONDO FUMIYOSHI (JP)
KAWAZU MITSUHIRO (JP)

Application Number:

PCT/JP2013/000575

Publication Date:

August 08, 2013

Filing Date:

February 01, 2013

Export Citation:

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Assignee:

NIPPON SHEET GLASS CO LTD (JP)

International Classes:

C03C17/23; B01J21/08; B01J35/02; C03C17/25

Domestic Patent References:

WO2011021383A1	2011-02-24
WO2011021383A1	2011-02-24

Foreign References:

JP2001295026A	2001-10-26
JP2001264509A	2001-09-26
JPH09262483A	1997-10-07
JP2008040171A	2008-02-21
JP2003287601A	2003-10-10
JP2005352303A	2005-12-22

Other References: