Daicel Corporation

Ryouta Kojima

Hitoshi Watanabe

Norihiro Kimoto

Kouichi Umemoto

Takahiro Sakakibara

Hiroki Kageyama

Naoyuki Fukui

An anti-reflection film (X) of the present invention includes a laminated structure including a substrate (), a hard coat layer (), and an anti-reflection layer (), and a luminous reflectance of the anti-reflection layer () side is 2% or less. The anti-reflection layer () includes a surface () having a coefficient of kinetic friction of 0.3 or less and a coefficient of static friction of 0.3 or less. In addition, in the anti-reflection film (X), after a rubbing test performed on the surface () using steel wool #0000 as a rubbing material under conditions of a load of 200 g/cm, a rubbing stroke length of 10 cm, and reciprocations of 1000 times, a difference of the haze value (%) after the rubbing test from the haze value (%) before the rubbing test is 0.1 or less. Such an anti-reflection film is suitable for achieving high scratch resistance together with high anti-reflective properties.

Anti-reflection film

Provided is a titanium oxide dispersion liquid that has dispersibility and dispersion stability both at superior levels and, when applied and dried, can form a photocatalyst coating film capable of rapidly developing excellent photocatalytic activity. The titanium oxide dispersion liquid according to the present invention includes titanium oxide particles (A), a dispersing agent (B), and a solvent (C). The titanium oxide particles (A) support a transition metal compound. The dispersing agent (B) includes a poly(acrylic acid) or a salt thereof. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably includes a poly(acrylic acid) alkali metal salt. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably has a weight-average molecular weight of from 1000 to 100000.

Titanium oxide dispersion liquid, titanium oxide coating liquid, and photocatalyst coating film

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Tokyo, Japan

Ryouta Kojima