Abstract: An antistatic hard coat film including: a substrate film formed of a thermoplastic resin containing a cycloolefin polymer; and an antistatic hard coat layer provided on the substrate film, the antistatic hard coat layer containing electroconductive metal oxide fine particles, wherein the antistatic hard coat layer has a surface resistance value of 1.0×106 ?/sq. or more and 1.0×1010 ?/sq. or less, and the number of streaks each having a length of 20 cm or longer of the antistatic hard coat layer is 2 or less per area of 1,330 mm×500 mm of the antistatic hard coat layer, and the production method thereof, as well as a polarizing plate, a touch panel, and a liquid crystal display device including the antistatic hard coat film.

Abstract: An antistatic film including: a substrate film layer formed of a thermoplastic resin containing a polymer containing an alicyclic structure; and an antistatic layer containing metal oxide particles having electroconductivity, the antistatic layer being provided on the substrate film layer, wherein the antistatic layer has a surface resistance of 1.0×106 ?/square or more and 1.0×1010 ?/square or less, and image clarity of a surface of the antistatic layer is 90 or more.

Abstract: An antistatic hard coat film including: a substrate film formed of a thermoplastic resin containing a cycloolefin polymer; and an antistatic hard coat layer provided on the substrate film, the antistatic hard coat layer containing electroconductive metal oxide fine particles, wherein the antistatic hard coat layer has a surface resistance value of 1.0×106 ?/sq. or more and 1.0×1010 ?/sq. or less, and the number of streaks each having a length of 20 cm or longer of the antistatic hard coat layer is 2 or less per area of 1,330 mm×500 mm of the antistatic hard coat layer, and the production method thereof, as well as a polarizing plate, a touch panel, and a liquid crystal display device including the antistatic hard coat film.

Abstract: An optical layered body including a substrate layer and a first surface layer, wherein the substrate layer includes a polymer containing an amorphous alicyclic structure, and the first surface layer includes a polymer containing a crystallizable alicyclic structure; a polarizing plate including such an optical layered body and a polarizer; and a liquid crystal display device including such a polarizing plate. Preferably, the optical layered body has a specific retardation, the first surface layer has a specific thickness, and the polymer containing a crystallizable alicyclic structure is a hydrogenated product of a ring-opened polymer of dicyclopentadiene.

Abstract: A layered body including an optical film A containing an alicyclic structure-containing polymer and an adhesive layer B, therein a critical stress change ratio thereof calculated by the following formula 1 is 40% or less: ( critical ? ? stress ? ? change ? ? ratio ) = ( critical ? ? stress ? ? of ? ? optical ? ? film ? ? A - critical ? ? stress ? ? of ? ? layered ? ? body ) critical ? ? stress ? ? of ? ? optical ? ? film ? ? A × 100 ( Formula ? ? 1 )

Abstract: A gas barrier multilayer body including a composite layer A which has a film (a) and an inorganic barrier layer (a), and a composite layer B which has an alicyclic olefin resin film (b) and an inorganic barrier layer (b), wherein a surface of the composite layer A and a surface of the composite layer B are faced and bonded to each other, a surface of the alicyclic olefin resin film (b) on a side facing to the composite layer A is an activation-treated surface, and the activation-treated surface of the alicyclic olefin resin film (b) is in contact with the composite layer A directly or via a metal alkoxide layer (b); and a circularly polarizing plate including the same.

Abstract: A gas barrier multilayer body including a composite layer A which has a film (a) and an inorganic barrier layer (a), and a composite layer B which has an alicyclic olefin resin film (b) and an inorganic barrier layer (b), wherein a surface of the composite layer A and a surface of the composite layer B are faced and bonded to each other, a surface of the alicyclic olefin resin film (b) on a side facing to the composite layer A is an activation-treated surface, and the activation-treated surface of the alicyclic olefin resin film (b) is in contact with the composite layer A directly or via a metal alkoxide layer (b); and a circularly polarizing plate including the same.