Abstract:
A mold ( 10 ) of the present invention includes an anodized porous alumina layer over its surface. The anodized porous alumina layer has a plurality of first recessed portions ( 12 ) and a plurality of second recessed portions ( 14 ). The plurality of second recessed portions ( 14 ) have a two-dimensional size of not less than 190 nm and not more than 50 µm when viewed in a direction normal to the mold surface. The plurality of second recessed portions ( 14 ) have a plurality of minute recessed portions ( 15 ) over its inner surface. The plurality of minute recessed portions ( 15 ) have a two-dimensional size of not less than 10 nm and not more than 200 nm. The plurality of first recessed portions ( 12 ) have a two-dimensional size of not less than 10 nm and not more than 200 nm. The plurality of first recessed portions ( 12 ) are provided between the plurality of second recessed portions ( 14 ). The average value of the two-dimensional size of the plurality of second recessed portions ( 14 ) is greater than the average value of the two-dimensional size of the plurality of first recessed portions ( 12 ). According to the present invention, a moth-eye mold which has improved wettability for a curable resin and a method of fabricating the moth-eye mold are provided.
Abstract:
The present invention provides a laminated body including an antireflection film onto the surface of which bonded is a protection film excellent in the temporary adhesiveness and hardly undergoing the occurrence of adhesive deposit after being peeling off. The laminated body of the present invention is a laminated body including: an antireflection film; and a protection film bonded onto the antireflection film, wherein the surface of the antireflection film includes a plurality of protrusions wherein the width between the tops of adjacent protrusions is equal to or less than the visible light wavelength; the protection film includes a supporting film and an adhesive layer in contact with the antireflection film; the adhesive layer is a layer constituted with a material formed by cross-linking, with a cross-linking agent (B), a (meth)acrylic acid ester copolymer (A); the weight-average molecular weight of the (meth)acrylic acid ester copolymer (A) is 600,000 or more and less than 1,500,000; the (meth)acrylic acid ester copolymer (A) is a copolymer formed by polymerizing monomer components including, in relation to the total amount of the monomer components set at 100% by mass, 70 to 98% by mass of a (meth)acrylic acid alkyl ester monomer (a) including a noncyclic alkyl group containing 4 to 9 carbon atoms, 1.5 to 25% by mass of a (meth)acrylic acid ester monomer (b) containing an aliphatic ring, and 0.5 to 5% by mass of a (meth)acrylic-based monomer (c) containing a functional group exhibiting reactivity with the cross-linking agent (B); and the area proportion of the components each having a molecular weight of 100,000 or less, obtained by gel permeation chromatography measurement, in relation to the area of the whole of the (meth)acrylic acid ester copolymer (A) set at 100%, is less than 3.0%.
Abstract:
The present invention provides a roller nanoimprint apparatus capable of preventing a workpiece film with nanostructures having been transferred from the mold roller from being uneven in thickness and allowing easy replacement of the mold roller. The present invention is a roller nanoimprint apparatus including a mold roller and continuously transferring nanosizedprotrusions to a surface of a workpiece film by rotating the mold roller, wherein the mold roller is a cylindrical body having an outer circumference surface with nanosized recesses formed thereon, the roller nanoimprint apparatus further includes a fluid container having an elastic film inflatable by injecting fluid into the container, the fluid container being arranged in a region defined by an inner circumference surface of the mold roller, the mold roller is mounted or demounted when the elastic film is shrunken, and the mold roller is supported from the inside when the elastic film is inflated.