Hitachi Metals, Ltd.

Hitachi Cable, Inc.

Asahi Glass Company, Limited

Japan Atomic Energy Research Institute

Proterial, Ltd.

Raytech Corporation

Hitach Cable, Ltd.

Akinari Nakayama

Sohei Kodama

Masahiro Abe

Keisuke Sugita

Masafumi Kaga

Makoto Iwasaki

Masafumi Nagano

Hideyuki Suzuki

Takahiro Sugiyama

Takashi Aoyama

Haruyuki Watanabe

Hideki Yagyu

Yoshiaki Nakamura

Kenichi Murakami

Hiroshi Okikawa

Kenichiro Fujimoto

Yuju Endo

Kiyoshi Watanabe

Mitsuru Hashimoto

Michiaki Shimizu

Motoharu Kajiyama

Daisuke Shanai

Tadao Seguchi

Noboru Kasai

Masami Sorimachi

Masumi Nomura

Yoneho Tabata

Atsuro Yaguchi

Shinji Hinoshita

Kazuhiko Sasada

Shigetoshi Ikeda

Shinya Ishi

Kazushige Otsuhata

Mitsuharu Morozumi

Shigeru Iwata

Akihiro Ohshima

Tatsuya Sasamura

Masanobu Yamanobe

A method for producing a molding article includes preparing an insulated wire including an outermost layer disposed on an outer periphery of a conductor, the outermost layer including a resin composition including a fluorine-containing elastomer. The resin composition includes a tetrafluoroethylene-propylene copolymer and an ethylene-tetrafluoroethylene copolymer as an entire base polymer or a portion of the base polymer at a mass ratio of the tetrafluoroethylene-propylene copolymer to the ethylene-tetrafluoroethylene copolymer in a range of 100:0 to 60:40. The resin composition further includes 5 to 60 parts by mass of calcium carbonate and/or silica as an inorganic filler with respect to 100 parts by mass of the base polymer.

Method for producing a molding article

A molded cable comprises a conductor, an insulation inner layer, an insulation outer layer, and a resin molded body. The insulation inner layer comprises a crosslinked ethylene resin composition and is provided an outer circumference of the conductor. The insulation outer layer comprises a crosslinked thermoplastic polyurethane composition and is provided on an outer circumference of the insulation inner layer. Arithmetic average roughness (Ra) of a surface of the insulation outer layer is 5 &#x3bc;m to 100 &#x3bc;m. The resin molded body coats an exposed end portion of the conductor and an end portion of the insulation outer layer at a side of the exposed end portion of the conductor. The resin molded body is fused to the insulation outer layer.

Molded wire and molded cable, and wire for molded wire and cable for molded cable

An adhesive film includes a resin film; and an adhesive layer provided on the resin film. The adhesive layer includes a resin composition including 2 parts by mass or more of an epoxy resin including two or more epoxy groups in molecules and having epoxy equivalents of 300 g/eq or less, per 100 parts by mass of an amorphous resin, which is soluble to a solvent and has a plurality of carboxyl groups in molecules, and which has a glass transition temperature of 100&#xb0; C. or less and an acid value of 5 KOHmg/g or more. A flat wiring member includes a conductor and the adhesive film as described above.

Adhesive film and a flat wiring member using the same

A cable includes a conductor, an insulation coating layer on the conductor, and an outer coating layer on the insulation coating layer. The insulation coating layer is made of a composition containing 100 parts by mass of a base polymer (A) and 100 to 250 parts by mass of a non-halogen flame retardant. The polymer (A) contains 70% to 99% by mass of an ethylene-vinyl acetate copolymer (a1) containing an ethylene-vinyl acetate copolymer having a melting point of 70&#xb0; C. or higher, and 1% to 30% by mass of an acid-modified polyolefin resin (a2) having a glass transition point of &#x2212;55&#xb0; C. or lower. The polymer (A) contains 25% to 50% by mass of a vinyl acetate component derived from the copolymer (a1). The outer coating layer is made of a composition containing 100 parts by mass of a base polymer (B) and 150 to 220 parts by mass of a non-halogen flame retardant. The polymer (B) contains 60% to 70% by mass of a linear low-density polyethylene (b1), 10% by mass or more of an ethylene-vinyl acetate copolymer (b2) having a melt flow rate of 100 g/10 min or more, and 10% to 20% by mass of a maleic acid-modified polyolefin (b3).

Cable

A pressure-sensitive sensor includes a long hollow insulation that is elastically deformable and includes a hollow portion extending continuously in a longitudinal direction, a plurality of electrode wires that are provided along the inner peripheral surface of the hollow portion throughout the longitudinal length and are arranged facing each other with a distance therebetween so as to come into contact with each other when bent with elastic deformation of the hollow insulation, each electrode wire being formed by providing a conductive cover around a conductor, and an outer layer formed to cover an outer surface of the hollow insulation. The hollow insulation includes an insulating composition (A) including a styrene-based thermoplastic elastomer (a1). The outer layer including an insulating composition (C) including a thermoplastic polyurethane (c1) and an acid-modified polymer (c2) that is modified with an unsaturated carboxylic acid or a derivative thereof.

Pressure-sensitive sensor

A pressure sensor includes an insulator having a hollow portion; and a plurality of electrical conductors that have been disposed apart from each other along the inner surface facing the hollow portion of the insulator. The insulator comprises an insulating resin composition made of a material which does not need cross-linking, the plurality of electrical conductors comprise an electroconductive resin composition made of a material which does not need cross-linking, the insulating resin composition and the electroconductive resin composition comprise a process oil, and a mass percentage concentration of the process oil in the electroconductive resin composition is higher than a mass percentage concentration of the process oil in the insulating resin composition.

Pressure sensor including electrical conductors comprising electroconductive resin composition that does not need cross-linking

There is provided an elastomer composition having both of a flexibility and a wear resistance at a low temperature, while having a high conductivity, and containing an elastomer component (A) including styrene-based thermoplastic elastomer (a1) and propylene-based elastomer (a2); and containing 10 pts.mass or more and 100 pts.mass or less of a conductivity imparting agent (B), and 10 pts.mass or more and 300 pts.mass of less of a process oil (C) based on 100 pts.mass of the elastomer component (A).

Conductive elastomer composition and molded article of the same

[Problem] To provide: an electroconductive resin composition which can be produced at low cost and is suitable as a material for the electrical conductors of a pressure sensor; and a pressure sensor including electrical conductors constituted of the electroconductive resin composition. [Solution] The present invention provides a pressure sensor () which includes an insulator () having a hollow portion () and a plurality of electrical conductors () that have been disposed apart from each other along the inner surface facing the hollow portion () of the insulator (), the plurality of electrical conductors () comprising an electroconductive resin composition that includes both a styrene-based thermoplastic elastomer and carbon.

Electroconductive resin composition and pressure sensor

A molded electric wire is composed of a conductor wire, an insulating member coating a circumference of the conductor wire, including a thermoplastic polyurethane, and having an arithmetic average surface roughness of not smaller than 5 &#x3bc;m and not greater than 100 &#x3bc;m, and a molded resin part directly coating a terminal of the insulating member.

Molded electric wire

A crosslinked resin compound includes a resin compound including 0.1 to 20 parts by mass of one material selected from the group consisting of monomer having an epoxy group, acid anhydride and silane coupling agent with respect to 100 parts by mass of ethylene-based copolymer, and the resin compound is crosslinked.

Crosslinked resin compound and wire and cable using the same

A coaxial cable includes a center conductor, an insulating foam provided to cover an outer periphery of the center conductor, and a protruding portion provided around an outer surface of the insulating foam to absorb stress. The protruding portion has a waved shape that oscillates in a circumferential direction of the insulating foam.

Coaxial cable with protruding portions of insulating foam

A foamed resin molded product includes not less than two fluorine resins that have a different melting point from each other. One of the not less than two fluorine resins comprises a fluorine resin that has a melting point of not more than 230 degrees C. An other of the not less than two fluorine resins comprises a fluorine resin that has a melting point of not less than 40 degrees C. higher than the fluorine resin having the melting point of not more than 230 degrees C.

Foamed resin molded product, foamed insulated wire, cable and method of manufacturing foamed resin molded product

A differential signal transmission cable includes a pair of differential signal lines arranged in parallel to each other, an insulation for bundle-covering the pair of differential signal lines, and a shield conductor wound around an outer periphery of the insulation. The insulation is configured such that an outer circumference thereof in a cross section perpendicular to a longitudinal direction thereof has an oval shape formed with a continuous convex arc-curve. The outer circumference of the insulation includes a first curved portion with a pair of symmetrical elliptical arcs located at both ends in a first direction along the arrangement direction of the pair of differential signal lines and a second curved portion with a pair of symmetrical elliptical arcs located at both ends in a second direction orthogonal to the first direction.

Differential signal transmission cable

A differential signal transmission cable includes two core wires, and a foamed insulation that collectively covers the two core wires by foaming extrusion molding. The foamed insulation is not more than 5% in a dispersion of foaming degree defined below in a cut surface when the cable is cut orthogonally to a longitudinal direction of the cable. In the cut surface, five regions are determined according to a predetermined procedures and a foaming degree (%) of the respective regions is measured. The dispersion of the foaming degree is defined by a difference between a foaming degree (%) in the region with a maximum foaming degree and a foaming degree (%) in the region with a minimum foaming degree.

Differential signal transmission cable and method of making same

A differential transmission cable includes at least one pair of inner conductors arranged in parallel and extending parallel to each other, and a foamed insulating material formed on the inner conductors by a collective extrusion coating and molding of a resin material by using a chemical foaming method and have a variation of foaming degree of not more than 1%. The variation of foaming degree is defined as a difference between a maximum value and a minimum value among foaming degrees (%) of the foamed insulating material at 20 positions at intervals of 50 cm in a longitudinal direction in an arbitrary part of 10 m cut out from the differential transmission cable.

Differential transmission cable and method of manufacturing the same

Growing community of inventors

Hitachinaka, Japan

Akinari Nakayama