Dai Nippon Printing Co., Ltd.

Yuya Inomata

Tomoyuki Horio

Kazuhiro Watanabe

Keiji Kashima

Kazuki Yamada

Mariko Hayashi

Yoshihiro Nishimura

Hideki Usuki

Kumiko Kambara

Masanori Fukuda

Takeshi Nishizono

Mayu Youki

Makoto Honda

Hiroko Suzuki

Hiroomi Katagiri

Kana Yamamoto

The claimed invention provides an antistatic hard coat film that is extremely excellent in white muddiness resistance and antistatic properties and sufficiently prevents an interference fringe pattern. The claimed invention provides an antistatic hard coat film including a triacetyl cellulose substrate and a hard coat layer formed on the triacetyl cellulose substrate, the hard coat layer including an antistatic agent, a (meth)acrylate resin, and a polymer of a (meth)acrylate monomer, the triacetyl cellulose substrate including a permeation layer formed by permeation of the (meth)acrylate monomer from the hard coat layer side of the interface toward the opposite side of the hard coat layer, the antistatic hard coat film satisfying Formulas (1), (2), and (3):3 &#x3bc;m&#x2264;&#x2264;18 &#x3bc;m&#x2003;&#x2003;Formula (1)0.3&#x2264;0.9&#x2003;&#x2003;Formula (2)2 &#x3bc;m&#x2264;&#x2264;11 &#x3bc;m&#x2003;&#x2003;Formula (3)where T denotes the total thickness (&#x3bc;m) of the permeation layer and the hard coat layer, and t denotes the thickness (&#x3bc;m) of the permeation layer.

Antistatic hardcoat film, process for producing same, polarizer, and image display device

A pattern phase difference film is manufactured by a process including a laminate body formation step of applying a pattern alignment layer composition on a substrate to form a laminate body, a heat-drying layer formation step of heat-drying the composition to form a heat-dried layer, a pattern alignment layer formation step of irradiating a polarization pattern onto the heat-dried layer to form a pattern alignment layer, and a phase difference layer formation step of forming a phase difference layer including a rod-shaped compound on the pattern alignment layer. During the steps between the heat-drying layer formation step and the phase difference layer formation step, the heat-dried layer and the pattern alignment layer are exposed to the air for four hours or less.

Patterned phase difference film and method for manufacturing same

An optical layered body that can reduce the occurrence of curling and has excellent workability when being affixed to a polarizing element or a display panel is provided. In particular is provided an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N1) of the surface of the hard coat layer, a Martens hardness (N2) of the center of the cross-section of the hard coat layer, and a Martens hardness (N3) of the center of the cross-section of a triacetylcellulose substrate as measured by nanoindentation at a load of 10 mN are as follows: the Martens hardness (N1) is 200 to 450 N/mm; the Martens hardness (N2) is 100 to 300 N/mm; and the Martens hardness (N3) is 150 to 250 N/mm.

Optical layered body, polarizer, and image display device

The present invention provides an optical layered body having excellent hardness, abrasion resistance, and flexibility. The present invention provides an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N) of a surface of the hard coat layer, a Martens hardness (N) of the center of the cross-section of the hard coat layer, and a Martens hardness (N) of the center of the cross-section of the triacetylcellulose substrate have a relationship of N&#x3e;N&#x3e;Nas determined by nanoindentation, and the hard coat layer has a pencil hardness of 4H or more as measured by a test in accordance with a pencil hardness test defined in JIS K5600-5-4 (1999) at a load of 4.9 N.

The claimed invention provides an antireflection film including a light-transmitting substrate, a hard coat layer, and a low-refractive-index layer, the hard coat layer and the low-refractive-index layer being formed on the light-transmitting substrate, the low-refractive-index layer including a (meth)acrylic resin, hollow silica particles, reactive silica particles, and two kinds of antifouling agents, the hollow silica particles having an average particle size of 40 to 80 nm and a blending ratio to the (meth)acrylic resin, represented by a ratio: Amount of hollow silica particles/Amount of (meth)acrylic resin, of 0.9 to 1.4, the amount of the reactive silica particles being 5 to 60 parts by mass based on 100 parts by mass of the (meth) acrylic resin, the antifouling agents including an antifouling agent that contains a fluorine compound and an antifouling agent that contains a fluoro-silicone compound.

Antireflection film, method for producing antireflection film, polarizer and image display device

The present invention provides an inexpensive optical layered body which does not cause interference fringes but excels in hard coat properties, antistatic properties, and antireflection properties. An optical layered body comprises: a light-transmitting substrate; and a hard coat layer (A) and a hard coat layer (B) on one face of the light-transmitting substrate in this order, wherein the hard coat layer (B) has a region (B) not containing inorganic fine particles and a region (B) containing inorganic fine particles, in this order from a portion adjacent to the hard coat layer (A), a boundary between the region (B) not containing inorganic fine particles and the region (B) containing inorganic fine particles has irregularities, and the inorganic fine particles have a particle size smaller than a visible light wavelength.

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Tokyo, Japan

Yuya Inomata