Abstract: These vinyl-based polymerizable group-containing silane compounds may be used alone, or two or more thereof may be used in combination. The content of the vinyl-based polymerizable group-containing silane compound is 1% by mass or more and 10% by mass or less, and preferably 1% by mass or more and 5% by mass or less, in 100% by mass of the organosiloxane mixture. When the amount of the vinyl-based polymerizable group-containing silane compound is the lower limit value or more, the peeling force and impact resistance of the obtained cured product tend to be high. When the amount of the vinyl-based polymerizable group-containing silane compound is the upper limit value or less, the peeling force and impact resistance of the obtained cured product tend to be high.

Abstract: A prototype aluminum mold for stampers that is used to manufacture stampers having a fine irregular surface structure on the surface thereof and containing aluminum and magnesium, wherein the content of magnesium is 0.1% by mass to 3% by mass, the content of silicon is 100 ppm by mass or less, the total content of elements other than aluminum and magnesium is 500 ppm by mass or less, and the number of magnesium silicide particles having an equivalent diameter of 10 nm or more on the surface of the prototype aluminum mold for stampers is 10/1000 ?m2 or less.

Abstract: The present invention relates to a method of manufacturing a mold having an oxide film with a plurality of pores formed on a surface of an aluminum substrate, the method including (a) a process of applying a voltage to a machined aluminum substrate and anodizing a surface of the aluminum substrate to form an oxide film; and (b) a process of removing at least a part of the oxide film formed in the process (a), wherein a voltage (Va[V]) immediately before the process (a) is terminated and a time (ta[sec]) required to reach the voltage (Va[V]) after starting the application of voltage satisfy the following Equation (i) in the process (a). 0.

Abstract: This method for producing a mold for nanoimprinting in which a minute bumpy structure has been formed at the surface of a roller-shaped aluminum substrate of which the surface has been machined has: a polishing step for mechanically polishing the surface of the roller-shaped aluminum substrate, of which the surface has been machined, at least until the average crystal grain size changes; and a minute bumpy structure formation step for anodizing the aluminum substrate after the polishing step and forming a minute bumpy structure. The anti-reflective article has a minute bumpy structure at the surface, and in the wavelength region of visible light, has a color difference (E*) to the origin represented in the L*a*b* color system and derived by means of formula (1) of no greater than 0.9, or a chroma (C*) determined by means of formula (2) of no greater than 0.7.

Abstract: This method for producing anodic porous alumina such that an oxide coating film having a plurality of minute pores is formed at the surface of an aluminum substrate is characterized by containing: a step (a) for immersing the aluminum substrate in an electrolytic liquid resulting from mixing a plurality of acids; a step (b) for imposing a voltage on the aluminum substrate immersed in the electrolytic liquid; a step (c) for holding the aluminum substrate in the state of being immersed in the electrolytic liquid essentially without imposing a voltage on the aluminum substrate; and a step (d) for alternately repeating step (b) and step (c). By means of the present invention, it is possible using a simple device and with few steps to provide a method that easily produces anodic porous alumina such that an oxide coating film having a plurality of minute pores is formed at the surface of an aluminum substrate.

Abstract: A fine-concave-convex transfer mold with which defect regions of a molded body having a fine-concave-convex structure can be easily identified, and deformation of the fine-concave-convex structure can be inhibited even if the molded product is wound. A mold for the production of an optical article has, provided to a surface thereof, a plurality of convex portions at a cycle equal to or less than the wavelengths of visible light, and a plurality of concave portions formed between the adjacent convex portions. The mold has a surface provided with a transfer area having concave portions and convex portions that have a size and shape complementing the convex portions and the concave portions of the optical article. The mold can include, in the transfer area, marking portions. The height of the convex portions in the transfer area is less than the height of convex portions in sections other than the transfer area.

Abstract: This method for producing a mold for nanoimprinting in which a minute bumpy structure has been formed at the surface of a roller-shaped aluminum substrate of which the surface has been machined has: a polishing step for mechanically polishing the surface of the roller-shaped aluminum substrate, of which the surface has been machined, at least until the average crystal grain size changes; and a minute bumpy structure formation step for anodizing the aluminum substrate after the polishing step and forming a minute bumpy structure. The anti-reflective article has a minute bumpy structure at the surface, and in the wavelength region of visible light, has a color difference (E*) to the origin represented in the L*a*b* color system and derived by means of formula (1) of no greater than 0.9, or a chroma (C*) determined by means of formula (2) of no greater than 0.7.

Abstract: A method for manufacturing a light transmissive film having a cured resin layer with a fine concavo-convex structure on a surface of a base material film is provided. The method includes sandwiching an active energy ray-curable composition including a mold dissolving component between a mold having an inversion structure of the fine concavo-convex structure and the base material film, obtaining a light transmissive film in which a cured resin layer having the inversion structure of the mold transferred is formed on one surface of the base material film, and separating the obtained light transmissive film and the mold. Thus, it is possible to productively manufacture a light transmissive film, and to prevent the deposition of an attachment on the mold surface and the contamination of the mold surface. Moreover, a light transmissive film can be manufactured having excellent performances, such as antireflection properties.

Abstract: A fine-concave-convex transfer mold with which defect regions of a molded body having a fine-concave-convex structure can be easily identified, and deformation of the fine-concave-convex structure can be inhibited even if the molded product is wound. A mold for the production of an optical article has, provided to a surface thereof, a plurality of convex portions at a cycle equal to or less than the wavelengths of visible light, and a plurality of concave portions formed between the adjacent convex portions. The mold has a surface provided with a transfer area having concave portions and convex portions that have a size and shape complementing the convex portions and the concave portions of the optical article. The mold can include, in the transfer area, marking portions. The height of the convex portions in the transfer area is less than the height of convex portions in sections other than the transfer area.

Abstract: This method for producing anodic porous alumina such that an oxide coating film having a plurality of minute pores is formed at the surface of an aluminum substrate is characterized by containing: a step (a) for immersing the aluminum substrate in an electrolytic liquid resulting from mixing a plurality of acids; a step (b) for imposing a voltage on the aluminum substrate immersed in the electrolytic liquid; a step (c) for holding the aluminum substrate in the state of being immersed in the electrolytic liquid essentially without imposing a voltage on the aluminum substrate; and a step (d) for alternately repeating step (b) and step (c). By means of the present invention, it is possible using a simple device and with few steps to provide a method that easily produces anodic porous alumina such that an oxide coating film having a plurality of minute pores is formed at the surface of an aluminum substrate.

Abstract: The present invention relates to a method of manufacturing a mold having an oxide film with a plurality of pores formed on a surface of an aluminum substrate, the method including (a) a process of applying a voltage to a machined aluminum substrate and anodizing a surface of the aluminum substrate to form an oxide film; and (b) a process of removing at least a part of the oxide film formed in the process (a), wherein a voltage (Va [V]) immediately before the process (a) is terminated and a time (ta [sec]) required to reach the voltage (Va [V]) after starting the application of voltage satisfy the following Equation (i) in the process (a). 0.

Abstract: A film which is provided with a concave-convex microstructure body that has a concave-convex microstructure formed of a cured product of an active energy ray curable resin composition on a surface and an ultraviolet ray blocking layer that is adjacent to a surface of the concave-convex microstructure body, the surface being on the reverse side of the concave-convex microstructure-side surface, a method for producing the film, and a plate-like product, an image display device and a solar cell that are provided with the film.

Abstract: A prototype aluminum mold for stampers that is used to manufacture stampers having a fine irregular surface structure on the surface thereof and containing aluminum and magnesium, wherein the content of magnesium is 0.1% by mass to 3% by mass, the content of silicon is 100 ppm by mass or less, the total content of elements other than aluminum and magnesium is 500 ppm by mass or less, and the number of magnesium silicide particles having an equivalent diameter of 10 nm or more on the surface of the prototype aluminum mold for stampers is 10/1000 ?m2 or less.

Abstract: Provided is an article having a micro uneven structure on a surface thereof, wherein the article is obtained by forming a micro uneven structure composed of a cured product of a solvent-free active energy ray curable resin composition on a substrate containing triacetylcellulose, wherein an average interval between two adjacent convex parts in the micro uneven structure is less than or equal to a visible light wavelength, and adhesion between the substrate containing triacetylcellulose and a layer composed of the cured product of the active energy ray curable resin composition is classified into any one of type 0 to 2 according to a crosscut method defined in ISO2409:1992 (JIS K 5600-5-6:1999).

Abstract: Disclosed is an activation energy ray-curable resin composition comprising 70 to 95 parts by mass of a multifunctional monomer (A) which has a surface free energy of 37 mJ/m2 or more when cured and 5 to 30 parts by mass of a fluorine (meth)acrylate (B) which is compatible with the multifunctional monomer (A) (a total content of all monomers in the composition shall be 100 parts by mass), wherein the multifunctional monomer (A) has three or more radical polymerizable functional groups in a molecule and a value of a molecular weight thereof divided by the number of the radical polymerizable functional group (molecular weight/number of radical polymerizable functional group) is 110 to 200, and wherein the fluorine (meth)acrylate (B) has one or more radical polymerizable functional groups in a molecule.

Abstract: A method for manufacturing a light transmissive film having a cured resin layer with a fine concavo-convex structure on a surface of a base material film is provided. The method includes sandwiching an active energy ray-curable composition including a mold dissolving component between a mold having an inversion structure of the fine concavo-convex structure and the base material film, obtaining a light transmissive film in which a cured resin layer having the inversion structure of the mold transferred is formed on one surface of the base material film, and separating the obtained light transmissive film and the mold. Thus, it is possible to productively manufacture a light transmissive film, and to prevent the deposition of an attachment on the mold surface and the contamination of the mold surface. Moreover, a light transmissive film can be manufactured having excellent performances, such as antireflection properties.

Abstract: Disclosed is an activation energy ray-curable resin composition comprising 70 to 95 parts by mass of a multifunctional monomer (A) which has a surface free energy of 37 mJ/m2 or more when cured and 5 to 30 parts by mass of a fluorine (meth)acrylate (B) which is compatible with the multifunctional monomer (A) (a total content of all monomers in the composition shall be 100 parts by mass), wherein the multifunctional monomer (A) has three or more radical polymerizable functional groups in a molecule and a value of a molecular weight thereof divided by the number of the radical polymerizable functional group (molecular weight/number of radical polymerizable functional group) is 110 to 200, and wherein the fluorine (meth)acrylate (B) has one or more radical polymerizable functional groups in a molecule.