Abstract: A core-shell microparticle includes a shell containing at least one polymer selected from the group consisting of fluorine-containing polymers, fluorine-free vinyl polymers, and silicone polymers, and a core containing a fluorocarbon.

Abstract: The present invention aims to provide a light-concentrating film capable of concentrating at least one of direct sunlight and diffuse sunlight with high efficiency; a photovoltaic module having the light-concentrating film; and a transfer mold (die) for producing the light-concentrating film. The present invention relates to a light-concentrating film including alternating fine concavo-convex structure on at least one surface, the film having a concavo-convex height (H) of 0.05 to 15 ?m and a concavo-convex pitch (P) of 0.05 to 50 ?m, the film concentrating at least one of direct sunlight and diffuse sunlight.

Abstract: The present invention provides a composition including a fluorine-containing polymer, and excellent in heat resistance even if only a small amount of additives is added to the composition. The present invention relates to a composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b).

Abstract: A backsheet for a solar cell module, including a substrate sheet and a cured coating film formed from a coating material that contains a curable functional group-containing fluorinated polymer and an acrylic polymer.

Abstract: An object of the present invention is to provide a coating material that can form a coating film that has an excellent adherence for sealants in solar cell modules as well as an excellent resistance to blocking. Further objects are to provide this coating film, a solar cell module backsheet that has this coating film, and a solar cell module that has this coating film. The present invention relates to a coating material that contains a curable functional group-containing fluorinated polymer and a polyisocyanate compound derived from at least one isocyanate selected from the group consisting of xylylene diisocyanate and bis(isocyanatomethyl)cyclohexane.

Abstract: The present invention provides an ethylene/tetrafluoroethylene copolymer showing good heat resistance and good crack resistance even in a high temperature environment. The present invention is an ethylene/tetrafluoroethylene copolymer, comprising: copolymerization units derived from ethylene; tetrafluoroethylene; and a fluorine-containing vinyl monomer represented by general formula: CH2?CH—Rf in the formula, Rf representing a perfluoroalkyl group containing four or more carbon atoms, a fluorine-containing vinyl monomer content being 0.8 to 2.5 mol % to a total amount of all monomers, an ethylene/tetrafluoroethylene molar ratio being 33.0/67.0 to 44.0/56.0, a CH index being 1.40 or less, a melting point being 230° C. or higher, and a melt flow rate being 40 (g/10 minutes) or less.

Abstract: A backsheet for a solar cell module, including a substrate sheet and a cured coating film formed from a coating material that contains a curable functional group-containing fluorinated polymer and an acrylic polymer.

Abstract: An object of the present invention is to provide a backsheet, laminate, and solar cell module that can prevent the infiltration of water through a region of adhesion with the junction box. The present invention is a backsheet for a solar cell module, the backsheet having a water-impermeable sheet and a coating film formed on at least one side of the water-impermeable sheet, wherein the coating film is formed from a coating material containing a curable functional group-containing fluorinated polymer; a first surface treatment layer is formed on the coating film at least on a surface on an opposite side to the water-impermeable sheet; and the wetting index of the first surface treatment layer is at least 40 dyn/cm.

Abstract: An object of the present invention is to provide a coating material that can form a coating film that has an excellent adherence for sealants in solar cell modules as well as an excellent resistance to blocking. Further objects are to provide this coating film, a solar cell module backsheet that has this coating film, and a solar cell module that has this coating film. The present invention relates to a coating material that contains a curable functional group-containing fluorinated polymer and a polyisocyanate compound derived from at least one isocyanate selected from the group consisting of xylylene diisocyanate and bis(isocyanatomethyl)cyclohexane.

Abstract: The present invention aims to provide a light-concentrating film capable of concentrating at least one of direct sunlight and diffuse sunlight with high efficiency; a photovoltaic module having the light-concentrating film; and a transfer mold (die) for producing the light-concentrating film. The present invention relates to a light-concentrating film including alternating fine concavo-convex structure on at least one surface, the film having a concavo-convex height (H) of 0.05 to 15 ?m and a concavo-convex pitch (P) of 0.05 to 50 ?m, the film concentrating at least one of direct sunlight and diffuse sunlight.

Abstract: The present invention provides a light-concentrating film capable of concentrating incident light in a wide angular range with high efficiency and a solar cell module provided with the light-concentrating film. The present invention relates to a light-concentrating film made of an organic material, the light-concentrating film having a repeating structure of fine concavo-convex on at least one surface, the height (H) of the concavo-convex being 0.1 to 100 ?m, and the frequency (P) of the concavo-convex being 0.1 to 500 ?m, the concavo-convex having a stepped slope, the height (D) and the width (L) of one step of the stepped slope being larger or smaller toward bottom portions of the concavo-convex, the height (D) of the one step of the stepped slope being 0.01 to 100 ?m, the width (L) of one step of the stepped slope being 0.01 to 100 ?m.

Abstract: The present invention provides a laminate having an environmental cracking resistance for a fuel and a fuel impermeability and, in addition, higher in productivity. The present invention is a laminate including a chlorotrifluoroethylene copolymer layer (C) and a fluorine-free organic material layer (K), wherein the chlorotrifluoroethylene copolymer has a melt flow rate of 15.0 to 40.0 (g/10 minutes) and contains 15.0 to 25.0 mole percent of chlorotrifluoroethylene units relative to all monomer units.

Abstract: The present invention provides a fuel tank excellent in strength, low fuel permeability and durability in spite of its being light in weight as well as a method of producing such fuel tank by which the tank can be molded in a complicated shape with ease and at low production cost. The present invention is a fuel tank, produced by joining of at least two discrete parts of a tank and each having a laminate structure comprising a fluororesin layer and a thermoplastic resin layer in such a manner that at least the fluororesin layers of the parts are joined together to form the inner surface layer of the fluororesin layer.

Abstract: The present invention provides a composition including a fluorine-containing polymer, and excellent in heat resistance even if only a small amount of additives is added to the composition. The present invention relates to a composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b).

Abstract: The present invention provides an ethylene/tetrafluoroethylene copolymer showing good heat resistance and good crack resistance even in a high temperature environment. The present invention is an ethylene/tetrafluoroethylene copolymer, comprising: copolymerization units derived from ethylene; tetrafluoroethylene; and a fluorine-containing vinyl monomer represented by general formula: CH2=CH?Rf in the formula, Rf representing a perfluoroalkyl group containing four or more carbon atoms, a fluorine-containing vinyl monomer content being 0.8 to 2.5 mol % to a total amount of all monomers, an ethylene/tetrafluoroethylene molar ratio being 33.0/67.0 to 44.0/56.0, a CH index being 1.40 or less, a melting point being 230° C. or higher, and a melt flow rate being 40 (g/10 minutes) or less.

Abstract: A hollow molded article including a polyolefin resin-based layer (A), a modified polyolefin resin-based layer (B) and a fluororesin-based layer (C), wherein the fluororesin-based layer (C) constitutes at least one of the innermost and outermost layers of the hollow molded article.

Abstract: The present invention provides a molded article for a biodiesel fuel having excellent durability against a biodiesel fuel. The invention is a molded article for a biodiesel fuel of which the surface to be contacted with a biodiesel fuel is made of a fluorine-containing ethylenic resin.

Abstract: The present invention provides a fuel tank excellent in moldability, chemical resistance and low fuel permeability and excellent also in recyclability. The present invention is related to a fuel tank comprising a main body and a bag-like fuel reservoir placed within the main body and capable of changing a internal volume according to a volume of the fuel, wherein the fuel reservoir has a single-layer structure comprising a fluororesin, a multilayer structure comprising fluororesin layers, or a multilayer structure comprising a fluororesin layer and a thermoplastic resin layer.

Abstract: The present invention provides a hollow molded article which is excellent in chemical resistance, fuel resistance, weathering resistance and low fuel permeability and can be produced at low cost. The hollow molded article comprising a polyolefin resin-based layer (A), a modified polyolefin resin-based layer (B) and a fluororesin-based layer (C), wherein the fluororesin-based layer (C) constitutes at least one of the innermost and outermost layers.

Abstract: The present invention provides a fuel tank excellent in strength, low fuel permeability and durability in spite of its being light in weight as well as a method of producing such fuel tank by which the tank can be molded in a complicated shape with ease and at low production cost. The present invention is a fuel tank, produced by joining of at least two discrete parts of a tank and each having a laminate structure comprising a fluororesin layer and a thermoplastic resin layer in such a manner that at least the fluororesin layers of the parts are joined together to form the inner surface layer of the fluororesin layer.