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US 12,742,049 B2Granted
Photocatalytic film and display device
AssigneeSharp Kabushiki Kaisha
InventorsHidetsugu Kawai, Yasuhiro Shibai
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Abstract
A photocatalytic film according to the present disclosure includes a base film, a hard coat layer placed on the base film, and a photocatalytic coat layer placed on the hard coat layer, and is characterized in that the hard coat layer contains an ultraviolet-curable resin, the photocatalytic coat layer contains photocatalytic particles and a binder, the photocatalytic particles are tungsten oxide particles, and the binder is composed of a tetraalkoxysilane hydrolyzed condensate.
Claims12
A photocatalytic film comprising:
- a base film;
- a hard coat layer placed on the base film;
- and
- a photocatalytic coat layer placed on the hard coat layer, wherein:
- the hard coat layer contains an ultraviolet-curable resin,
- the photocatalytic coat layer contains photocatalytic particles and a binder,
- the photocatalytic particles are tungsten oxide particles,
- the binder is composed of a tetraalkoxysilane hydrolyzed condensate,
- the tetraalkoxysilane hydrolyzed condensate is a siloxane compound having a linear portion, and
- the binder has a polymer structure in which a viscosity of a dispersion liquid, in which 10 wt % being the tetraalkoxysilane hydrolyzed condensate dispersed in ethanol at 20° C., is 2.0 cps or higher and 4.0 cps or lower.
7 more elements
Dependencies are inferred from the claim text.