Abstract: A radio wave reflection reducing sheet provided with a laminate having a first primary surface and a second primary surface is disclosed. The laminate has: a first resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.10 to 0.85 g/cm3, and a second resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.20 to 0.90 g/cm3. The density of the second resin foam layer is greater than the density of the first resin foam layer. The first resin foam layer and the second resin foam layer are disposed in this order from the first primary surface side.

Abstract: An adhesive sheet is a thermally expandable and thermosetting adhesive sheet including a substrate and a first layer provided on at least one surface of the substrate. The first layer contains an adhesive portion having an adhesive composition and thermally expandable first particles contained within the adhesive composition, and second particles provided in the adhesive portion and having different materials from those of the first particles, and each of the second particles is larger than each of the first particles.

Abstract: A core-sheath filament having a) a core that is a thermally conductive pressure-sensitive adhesive particles and b) a non-tacky, thermoplastic sheath is provided. The thermally conductive pressure-sensitive adhesive in the core includes a (meth)acrylate-based polymeric material and thermally conductive particles. Additionally, methods of making the core-sheath filament and methods of using the core-sheath filament to print a thermally conductive pressure-sensitive adhesive are described.

Abstract: The production method for a thermally conductive molding includes: preparing a first film that is disposed on a mold having a three-dimensional shape so as to conform to the three-dimensional shape, and that has a first layer and a second layer that is releasably adhered to the first layer on a surface opposite to the mold of the first layer; disposing a curable composition including a thermally conductive material and a (meth)acrylic monomer on the first film; disposing a second film on the curable composition and sandwiching the curable composition between the first film and the second film; radically polymerizing the (meth)acrylic monomer in the curable composition to form a cured product of the curable composition between the first film and the second film; and releasing the first layer from the second layer to obtain a thermally conductive molding including the second layer, the cured product, and the second film.

Abstract: A resin composition, including a radical-polymerizable compound, a cation-polymerizable compound, a photo radical photopolymerization initiator, and a photo cation photopolymerization initiator; wherein the resin composition has a range of wavelengths so that one of the photo radical photopolymerization initiator and the photo cation photopolymerization initiator has a molar absorption coefficient of 1 or greater, and the other has a molar absorption coefficient of 0.1 or less. A gap-filling adhesive which is a partially polymerized product of the resin composition. The gap-filling adhesive is capable of easily filling the gap in the body to be adhered.

Abstract: Provided is a three-dimensionally shaped thermally conductive molded body and manufacturing method thereof, that can ensure sufficient gap filling properties and contact surface area with regard to heat dissipating components such as heat sinks and the like and heat generating components such as IC chips and the like, without adding excessive stress to these components. The three-dimensionally shaped thermally conductive molded body of a first aspect of the present disclosure contains a thermally conductive material and a silicone-based material, the molded body has a substantially flat bottom surface, and a three-dimensional shaped part located on the inside of the bottom surface, and the height of the three-dimensionally shaped part that is higher than the bottom surface differs in at least two locations.

Abstract: The invention is directed toward a heat conductive sheet that has flexibility, can follow a specific shape such as ruggedness and curvature, which can therefore insure high adhesion and, at the same time, excellent heat releasing property, is free from the occurrence of wrinkle and rupture or elongation, even when the thickness is decreased, and is excellent in formability of sheet formation and in bonding work. Such heat conductive sheet includes a substrate and a heat conductive resin layer applied to at least one surface of the substrate, wherein the heat conductive resin layer is constituted as to contain a binder resin and a heat conductive filler dispersed in the binder resin.

Abstract: A thermally conductive sheet comprising a heat-conductive resin layer. The heat-conductive resin layer comprises a binder resin comprising a wax, and a heat-conductive filler dispersed in the binder resin. The thermally conductive sheet has flexibility, and is conformable to a specific shape such as uneven or curved face, thereby ensuring high adhesion, and at the same time, ensuring high heat conductivity without causing any defect ascribable to the addition of a heat-conductive filler.

Abstract: To provide a reflection sheet, using a thinner, lower stiffness film, for use in surrounding a straight tube type fluorescent lamp in an edge type liquid crystal display panel back light device, which reflection sheet can realize a higher brightness of the back light device. A reflection sheet comprising: a film support having a thickness of 25 to 50 &mgr;m and, applied on a surface of the support, a reflective paint coat comprised of a mixture of a resin binder of a (meth)acrylate copolymer with a small particle balloon having a particle diameter of 0.05 to 10 &mgr;m and an inside empty diameter to particle diameter ratio of 0.2 to 0.9.

Abstract: This disclosure provides a concrete product having a retroreflective surface with uniform and sharp edge which is produced easily with shortened time without using a special equipment or process as well as chemicals which need special attention in handling. The disclosure also establishes a method to obtain the substrate consisting of a concrete-based material and a retroreflective element dispersed and embedded at least in a surface portion of said substrate, at least a part of which element is exposed from a surface of said substrate and the said retroreflective element being exposed from the substrate surface as a result of partially retarded hardening of the said concrete-based material and removal of the thus produced, unhardened concrete material.