Abstract: Vibration damping and sound absorbing foam formed of foam and fine particles present inside the foam so as to form bell-like structures in the foam is produced by performing the following steps [I] to [III] in the stated order. [I] Producing fine particles each having a surface coated with a coating material capable of being dissolved in at least one liquid selected from water and a solvent. [II] Mixing the coated fine particles into a material for foam, and producing foam from the mixture. [III] Immersing the foam in at least one liquid selected from water and a solvent to remove the coating of each of the fine particles in the foam by dissolution in the liquid.

Abstract: Vibration damping and sound absorbing foam formed of foam and fine particles present inside the foam so as to form bell-like structures having communication paths to a surface of the foam is produced by performing the following steps [I] to [III] in the stated order. [I] Preparing foam having foamed cells inside the foam and having communication paths to the foamed cells on a surface thereof, and fine particles each having a particle diameter smaller than a cell diameter of each of the foamed cells and larger than a diameter of each of the communication paths. [II] Swelling the foam to enlarge the diameter of each of the communication paths, and then sprinkling the surface of the foam with the fine particles, followed by pushing of the fine particles into the foamed cells via the communication paths with a fluid pressure of a liquid. [III] Drying the foam.

Abstract: A glass-fiber-reinforced thermoplastic resin molding product is provided, which has a ring-shaped structure, and includes a thermoplastic resin, and a fibrous filler dispersed in the thermoplastic resin. The fibrous filler includes: (A) 40 to 80% of glass fibers each having a length of at least 0.05 mm and less than 0.5 mm; (B) 15 to 40% of glass fibers each having a length of at least 0.5 mm and less than 1.0 mm; (C) 5 to 30% of glass fibers each having a length of at least 1.0 mm and less than 3.0 mm; and (D) at most 1% of glass fibers each having a length of at least 3.0 mm, based on the total number of fibers of the fibrous filler present in the molding product.

Abstract: A glass-fiber-reinforced thermoplastic resin molding product is provided, which includes a thermoplastic resin, a fibrous filler dispersed in the thermoplastic resin, and at least one of a dye and a pigment having an average particle diameter of at most 30 nm, the fibrous filler including: (A) 40 to 80% of glass fibers each having a length of not less than 0.05 mm and less than 0.5 mm; (B) 15 to 40% of glass fibers each having a length of not less than 0.5 mm and less than 1.0 mm; (C) 2 to 30% of glass fibers each having a length of not less than 1.0 mm and less than 3.0 mm; and (D) at most 1% of glass fibers each having a length of not less than 3.0 mm.

Abstract: A method for manufacturing an aluminum die-casting article for plastic working constituting a fixation structure between a vibration-damping device or a vibration-damping hose component and a vibration transmission member by plastic working, the method including: a die casting step of molding the aluminum die-casting article for plastic working, by normal die casting; and a heat treatment step of performing annealing heat treatment on the molded aluminum die-casting article for plastic working.

Abstract: A glass-fiber-reinforced thermoplastic resin molding product is provided, which includes a thermoplastic resin, a fibrous filler dispersed in the thermoplastic resin, and at least one of a dye and a pigment having an average particle diameter of at most 30 nm, the fibrous filler including: (A) 40 to 80% of glass fibers each having a length of not less than 0.05 mm and less than 0.5 mm; (B) 15 to 40% of glass fibers each having a length of not less than 0.5 mm and less than 1.0 mm; (C) 2 to 30% of glass fibers each having a length of not less than 1.0 mm and less than 3.0 mm; and (D) at most 1% of glass fibers each having a length of not less than 3.0 mm.

Abstract: A glass-fiber-reinforced thermoplastic resin molding product is provided, which has a ring-shaped structure, and includes a thermoplastic resin, and a fibrous filler dispersed in the thermoplastic resin. The fibrous filler includes: (A) 40 to 80% of glass fibers each having a length of at least 0.05 mm and less than 0.5 mm; (B) 15 to 40% of glass fibers each having a length of at least 0.5 mm and less than 1.0 mm; (C) 5 to 30% of glass fibers each having a length of at least 1.0 mm and less than 3.0 mm; and (D) at most 1% of glass fibers each having a length of at least 3.0 mm, based on the total number of fibers of the fibrous filler present in the molding product.

Abstract: Provided is a shaft made of a fiber-reinforced resin, in which a continuous glass fiber bundle is embedded in parallel with a lengthwise direction of the shaft, the shaft including a matrix resin formed of a resin composition comprising (A) a thermosetting resin as a main component, (B) carbon black, (C) a dispersant having a basic functional group, and (D) a curing agent for the component (A), in which the component (B) is particulate and is distributed along continuous glass fibers constituting the continuous glass fiber bundle. Thus, there can be provided a conductive shaft that is lightweight, has high strength, is excellent in conductivity, and is inexpensive, and a conductive roll for OA equipment using the shaft, and a method of producing the conductive shaft.

Abstract: A composite hose is constructed to have an outer peripheral portion and an inner peripheral portion. The outer peripheral portion includes an elastic layer and a reinforcing layer provided on an outer periphery of the elastic layer. The inner peripheral portion includes a corrugated metal tube which is provided with a corrugated portion formed with corrugation hills and corrugation valleys. A distance between the reinforcing layer and tops of the corrugation hills of the corrugated metal tube is designed 0.27 mm or less.

Abstract: A composite hose is constructed to have an outer peripheral portion and an inner peripheral portion. The outer peripheral portion includes an elastic layer and a reinforcing layer provided on an outer periphery of the elastic layer. The inner peripheral portion includes a corrugated metal tube which is provided with a corrugated portion formed with corrugation hills and corrugation valleys. A distance between the reinforcing layer and tops of the corrugation hills of the corrugated metal tube is designed 0.27 mm or less.

Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer. An outer thin resin layer is formed about a layer formed by the laminated tape, or metal film, and the whole is at least partly corrugated. Alternatively, corrugation is done before an outer thin resin layer is formed by electrostatic powder coating.

Abstract: A composite hose is constructed to have an outer peripheral portion and an inner peripheral portion. The outer peripheral portion includes an elastic layer and a reinforcing layer provided on an outer periphery of the elastic layer. The inner peripheral portion includes a corrugated metal tube which is provided with a corrugated portion formed with corrugation his and corrugation valleys. A distance between the reinforcing layer and tops of the corrugation hills of the corrugated metal tube is designed 0.27 mm or less.

Abstract: A composite hose is provided with a corrugated metal tube as a barrier layer against permeation of conveyed fluid, and an elastic filler layer which is filled in valley gaps between corrugation hills on an outer peripheral side of the corrugated metal tube. The elastic filler layer is filled completely in the valley gaps to tops of the corrugation hills. A radial thickness of the elastic filler layer measured radially outwardly from a radial position of the tops of the corrugation hills is designed 0.3 mm or less.

Abstract: A composite hose with a corrugated metal tube has a corrugated metal tube as a barrier layer against permeation of conveyed fluid, an elastic filler that penetrates in each valley gap on an outer peripheral side of the corrugated metal tube, between corrugation hills of the corrugated metal tube, and a reinforcing layer on an outer peripheral side of the elastic filler. The elastic filler to be adapted has a storage modulus in a range of 5×108 MPa to 5×109 MPa under temperature conditions ranging from ?30° C. to 150° C.

Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer. An outer thin resin layer is formed about a layer formed by the laminated tape, or metal film, and the whole is at least partly corrugated. Alternatively, corrugation is done before an outer thin resin layer is formed by electrostatic powder coating.

Abstract: A composite hose is provided with a corrugated metal tube as a barrier layer against permeation of conveyed fluid, and an elastic filler layer which is filled in valley gaps between corrugation hills on an outer peripheral side of the corrugated metal tube. The elastic filler layer is filled completely in the valley gaps to tops of the corrugation hills. A radial thickness of the elastic filler layer measured radially outwardly from a radial position of the tops of the corrugation hills is designed 0.3 mm or less.

Abstract: A composite hose is constructed to have an outer peripheral portion and an inner peripheral portion. The outer peripheral portion includes an elastic layer and a reinforcing layer provided on an outer periphery of the elastic layer. The inner peripheral portion includes a corrugated metal tube which is provided with a corrugated portion formed with corrugation hills and corrugation valleys. A distance between the reinforcing layer and tops of the corrugation hills of the corrugated metal tube is designed 0.27 mm or less.

Abstract: A metal-composite hose having a wall including an innermost metal layer and a resin layer surrounding it, in which the metal layer has at each end portion of the hose an inner surface covered with a resin layer, an elastic rubber layer, or both. A process for manufacturing a metal-composite hose includes: forming a metal layer; covering the metal layer with an elastic rubber layer, if required; and after masking a specific portion of the metal layer, forming a thermoplastic resin layer thereon by powder or spray coating. The hose is preferably a corrugated one. It has high fluid impermeability, flexibility and strength, as well as high metal-rust resistance and sealing property at both ends.

Abstract: A hose of a laminated structure which comprises a rubber layer composed of a rubber composition, and a laminate including a metal foil and a resin, the rubber composition including: (A) a rubber including at least one of an ethylene-propylene-diene terpolymer and an ethylene-propylene copolymer; (B) a peroxide vulcanizing agent; (C) a resorcinol compound; and (D) a melamine resin. The hose is light in weight, less costly, and has excellent gas barrier properties.

Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer.