Abstract: A curable resin composition for a hard coat layer capable of forming a hard coat layer having high hardness even with thin thickness and/or excellent in abrasion resistance and hardness, and a hard coat film using the curable resin composition.

Abstract: A process is provided for preparing 4-(8-(2-chlorophenoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)bicyclo[2.2.1]heptan-1-ol and novel intermediates used in the process. The compound is a 11-beta hydroxysteroid dehydrogenase type I inhibitor which exhibits activity in the treatment of various metabolic diseases.

Abstract: 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 (N1) of a 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 the triacetylcellulose substrate have a relationship of N2>N1>N3 as 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.

Abstract: 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 (N1) of a 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 the triacetylcellulose substrate have a relationship of N2>N1>N3 as 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.

Abstract: Provided is an optical layered body having excellent blocking resistance. The optical layered body includes a triacetyl cellulose substrate and a hard coat layer, the hard coat layer having fine surface roughness that has an average PV roughness Rtm of 2.2 to 11.5 nm, a base roughness depth R3z of 2.5 to 13.5 nm, and a ten-point average roughness Rz of 2.6 to 13.5 nm, and satisfy the relation Rtm<R3z?Rz.

Abstract: Provided is a hard coat film having high hardness and excellent restorability in view of the above circumstances. A hard coat film comprising: a light-transmitting substrate; and a hard coat layer, the hard coat layer comprising a cured product of a composition for a hard coat layer, the composition including an isocyanuric skeleton-containing urethane(meth)acrylate.

Abstract: Provided is an optical layered body which is extremely high in the stability of the antistatic performance, and has a stable surface resistance even after a durability test. The optical layered body includes an antistatic layer on one face of a light-transmitting substrate, wherein the antistatic layer is formed using a composition for an antistatic layer containing conductive fine particles, a resin component, and a solvent, and the resin component has no reactive functional groups in a molecule, and is soluble in the solvent and compatible with the conductive fine particles.

Abstract: Provided is a hard coat film having high hardness and excellent restorability in view of the above circumstances. A hard coat film comprising: a light-transmitting substrate; and a hard coat layer, the hard coat layer comprising a cured product of a composition for a hard coat layer, the composition including an isocyanuric skeleton-containing urethane(meth)acrylate.

Abstract: Provided is an optical layered body having excellent blocking resistance. The optical layered body includes a triacetyl cellulose substrate and a hard coat layer, the hard coat layer having fine surface roughness that has an average PV roughness Rtm of 2.2 to 11.5 nm, a base roughness depth R3z of 2.5 to 13.5 nm, and a ten-point average roughness Rz of 2.6 to 13.5 nm, and satisfy the relation Rtm<R3z?Rz.

Abstract: 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 (N1) of a 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 the triacetylcellulose substrate have a relationship of N2>N1>N3 as 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.

Abstract: The invention provides an optical laminate comprising an optically transparent base and a silica particle-containing antiglare layer, wherein the silica particles have a dielectric constant of less than 4.0, which optical laminate is provided with excellent optical characteristics and with suitable aggregation of silica particles even when silica particles are present in the antiglare layer.

Abstract: A photoelectric conversion device includes a layered structure formed on a substrate including a first electrode, a photoelectric conversion semiconductor layer and a second electrode, the photoelectric conversion semiconductor layer being mainly composed of a compound semiconductor containing group Ib, group IIIb and group VIb elements, and containing an alkaline(-earth) metal, wherein the alkaline(-earth) metal concentration distribution in the photoelectric conversion layer in the thickness direction includes a valley with the lowest alkaline(-earth) metal concentration and an area with an alkaline(-earth) metal concentration higher than that at the valley, the area being nearer to the substrate from the valley, and wherein Expressions (1) and (2) below are satisfied: 1.0×10?6?a [mol/cc]?2.0×10?5??(1) and 1.5?b/a?4.

Abstract: A photoelectric conversion device includes a photoelectric conversion layer which mainly composed of a compound semiconductor containing a group Ib element, at least two group IIIb elements including Ga, and a group VIb element and contains an alkaline(-earth) metal. Concentration distributions of the alkaline(-earth) metal and Ga in the photoelectric conversion layer in the thickness direction includes a valley with the lowest concentration and an area with a higher concentration between the substrate and the valley, and satisfy Expressions (1) and (2) below: 1.0×10?6?AN [mol/cc]?2.0×10?5??(1) and 1.0?CN/CG??(2), where AN represents the alkaline(-earth) metal concentration at the valley, BN represents the highest alkaline(-earth) metal concentration between the substrate and the valley, AG represents the Ga concentration at the valley, BG represents the highest Ga concentration between the substrate and the valley, CN?BN/AN, and CG?BG/AG.

Abstract: The present invention is to provide an optical sheet having excellent abrasion resistance and hardness, and a method for producing the same. The object of the present invention was accomplished by an optical sheet in which a hard coat layer is provided on one surface of a substrate, wherein the hard coat layer comprises a cured product of a curable resin composition for a hard coat layer, which composition comprising reactive, irregularly shaped silica fine particles and a binder component, and wherein at least part of the irregularly shaped silica fine particles have a specific three-dimensional configuration and are present on an interface on the side opposite to the substrate side of the hard coat layer.

Abstract: The main object of the present invention is to provide an optical sheet having excellent abrasion resistance and hardness, and a method for producing the same. The present invention provides an optical sheet in which a hard coat layer is provided on one surface of a substrate, wherein the hard coat layer comprises a cured product of a curable resin composition for a hard coat layer, which comprises reactive inorganic fine particles and a binder component, and wherein fine protrusions are provided on an interface on the side opposite to the substrate side of the hard coat layer, in which the minimum angle of each of the fine protrusions making angles with a virtual plane that is parallel to the hard coat layer is an acute angle.

Abstract: A curable resin composition for a hard coat layer capable of forming a hard coat layer having high hardness even with thin thickness and/or excellent in abrasion resistance and hardness, and a hard coat film using the curable resin composition are provided. A hard coat film in which a hard coat layer is provided on one side of a transparent substrate film, wherein the hard coat layer comprises a matrix in a crosslinked state and an aggregate in which 3 to 100 silica fine particles having an average primary particle diameter of 1 to 100 nm are aggregated, and wherein the aggregate is cross-linked to the matrix, and an irregularly shaped silica fine particle constituted with 3 to 20 silica fine particles having an average primary particle diameter of 1 to 100 nm connected to each other by inorganic chemical bonding is contained as a part of the aggregates. The hard coat layer further contains a silica fine particle preferably.

Abstract: The invention provides an optical laminate comprising an optically transparent base and a silica particle-containing antiglare layer, wherein the silica particles have a dielectric constant of less than 4.0, which optical laminate is provided with excellent optical characteristics and with suitable aggregation of silica particles even when silica particles are present in the antiglare layer.