Window glass employing titanium dioxide photocatalyst

Details Window glass employing titanium dioxide photocatalyst Window glass employing titanium dioxide photocatalyst

2005-09-06

2005-09-06

Jones, Deborah (Department: 1775)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C428S689000, C428S701000, C428S702000, C205S349000, C205S350000

Reexamination Certificate

active

06939611

ABSTRACT:
A titanium dioxide film (2) having at least photocatalytic activity, whose light linear transmittance corresponding to light having a wavelength of 550 nm is not less than 50% and whose thickness is 0.1 to 5 μm or so, is formed on a transparent substrate (1) constituted by a glass plate or the like. Preferably, a precoat film (3), which has optical transmissivity and is constituted by a SiO2film having a thickness of 0.02 to 0.2 μm or so, is provided between the transparent substrate (1) and the titanium dioxide film (2). Thereby, excellent photocatalytic action and optical transmissivity can be obtained. Moreover, members composing various structures such as a glass window, which are especially required to have optical transparency, can be further provided with photocatalytic activities.

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