Abstract: A composition includes a polymerizable liquid crystal compound (A), a photopolymerization initiator (B), and a crosslinking agent (C), and satisfies: |?a1??b1|?20 nm ??(i), and ?c1?250 nm ??(ii), where ?a1 represents a wavelength of an absorption local maximum that is the longest one of wavelengths of absorption local maxima in a light absorption spectrum of from 200 nm to 500 nm of the polymerizable liquid crystal compound (A), ?b1 represents a wavelength of an absorption local maximum that is the longest one of wavelengths of absorption local maxima in a light absorption spectrum of from 200 nm to 500 nm of the photopolymerization initiator (B), and ?c1 represents a wavelength of at least one absorption local maximum in a light absorption spectrum of from 200 nm to 500 nm of the crosslinking agent (C)).

Abstract: Provided is a barrier film including a resin film and a barrier layer provided on the resin film. Also provided is an electroconductive film including a resin film and an electroconductive layer provided on the resin film. The resin film is formed of a resin containing an alicyclic structure-containing polymer having crystallizability. An absolute value of a thermal size change ratio when the resin film is heated at 150° C. for 1 hour is 1% or less in any in-plane direction of the resin film.

Abstract: A laminate film comprising a substrate film and a cured film that is a cured curable composition disposed on one surface or both surfaces of the substrate film is disclosed. The substrate film is a film containing a cyclic olefin resin, and the curable resin composition comprises: (A) an acrylic resin having a polymerizable double bond; (B) a multifunctional polymerizable compound having three or more polymerizable double bonds, and having one or more monovalent groups represented by the following formula (2-1) or (2-2) as a group containing the polymerizable double bond; and (C) an alkylene oxide modified bisphenol A di(meth)acrylate.

Abstract: Provided is a barrier film including a resin film and a barrier layer provided on the resin film. Also provided is an electroconductive film including a resin film and an electroconductive layer provided on the resin film. The resin film is formed of a resin containing an alicyclic structure-containing polymer having crystallizability. An absolute value of a thermal size change ratio when the resin film is heated at 150° C. for 1 hour is 1% or less in any in-plane direction of the resin film.

Abstract: Provided is a resin film having excellent size stability in a high-temperature environment. A resin film formed of a resin containing an alicyclic structure-containing polymer having crystallizability, wherein an absolute value of a thermal size change ratio when the film is heated at 150° C. for 1 hour is 1% or less in any in-plane direction of the film. The alicyclic structure-containing polymer may preferably be a hydrogenated product of a ring-opened polymer of dicyclopentadiene. Also provided is a method for producing the resin film including a step of relaxing strain of the crystallized film while the crystallized. film is kept flat.

Abstract: An optical layered body including a substrate and an adhesive layer formed on the substrate, wherein the adhesive layer includes an acrylic adhesive composition containing an acrylic polymer, and a light scattering particle, the acrylic polymer is a copolymer of a copolymerizing component [I] which contains 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 604 by weight of a hydroxyl group-containing monomer (a2), the acrylic polymer has a weight-average molecular weight of 200,000 or less, the light scattering particle has a volume concentration V relative to the adhesive layer of 3% to 35%, the acrylic adhesive composition has a refractive index of 1.52 to 1.67, and the light scattering particle has a refractive index of 1.4 to 1.49.

Abstract: Provided is a resin film having excellent size stability in a high-temperature environment. A resin film formed of a resin containing an alicyclic structure-containing polymer having crystallizability, wherein an absolute value of a thermal size change ratio when the film is heated at 150° C. for 1 hour is 1% or less in any in-plane direction of the film. The alicyclic structure-containing polymer may preferably be a hydrogenated product of a ring-opened polymer of dicyclopentadiene. Also provided is a method for producing the resin film including a step of relaxing strain of the crystallized film while the crystallized. film is kept flat.

Abstract: A laminate film comprising a substrate film and a cured film that is a cured curable composition disposed on one surface or both surfaces of the substrate film is disclosed. The substrate film is a film containing a cyclic olefin resin, and the curable resin composition comprises: (A) an acrylic resin having a polymerizable double bond; (B) a multifunctional polymerizable compound having three or more polymerizable double bonds, and having one or more monovalent groups represented by the following formula (2-1) or (2-2) as a group containing the polymerizable double bond; and (C) an alkylene oxide modified bisphenol A di(meth)acrylate.

Abstract: An optical laminate body including: a substrate; and an adhesive layer formed on substrate, wherein the optical laminate body is used such that a surface thereof on the adhesive layer side is attached to a glass-made light-emitting surface member, a relationship n3?n2?n1 is satisfied where n1 is a refractive index of the glass that constitutes light-emitting surface member, n2 is a refractive index of the adhesive layer, and n3 is a refractive index of the substrate, the adhesive layer is composed of an acrylic adhesive composition containing an acrylic resin (A), and the acrylic resin (A) is a copolymer of a copolymerizable component [I] containing 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 60% by weight of a hydroxy group-containing monomer (a2), the weight average molecular weight of the acrylic resin (A) being 200,000 or less.

Abstract: A charged roller type electrophotographic copying apparatus capable of operating over a long term, in which durability of the apparatus is increased by bringing the charged roll into surface-contact with the photosensitive drum at low contact pressure will be supplied. In a charged roller type electrophotographic copying apparatus, the charged roller is endless tubular film of polyamide elastomer having a surface resistance value of 103 to 1013 &OHgr;/□, and is provided so as to come into surface-contact with a photoreceptor at its contact width therewith of 1.5 to 7 mm during copying.