Abstract:
An electric insulated wire according to the present invention is formed by applying a first insulation coating made from polyimide resin having a repeating unit represented as in chemical formula (1) to an electric conductor directly or through an insulation layer made from a second insulation coating, after which the first insulation coating is baked, the polyimide resin including a quadrivalent aromatic group (X) having an aromatic ether structure, a bivalent aromatic group (Y1) having an aromatic ether structure, and a bivalent aromatic group (Y2) having a fluorene structure; the first insulation coating has a compound ratio (Y1/Y2) of the bivalent aromatic group having an aromatic ether structure to the bivalent aromatic group having a fluorene structure within a range from 30/70 to 80/20, when represented as a mole ratio.
Abstract:
An insulated wire including a conductor, and an insulating film formed by coating and baking an insulating varnish on the conductor directly or via another insulation layer. The insulating varnish includes a phenolic hydroxyl group-containing polyimide resin represented by a chemical formula (1): where X is a tetravalent aromatic group composing an aromatic tetracarboxylic dianhydride residue, Y1 is a divalent aromatic group including one or more phenolic hydroxyl groups and Y2 is a divalent aromatic group not including a phenolic hydroxyl group A ratio of the number Z1 of phenolic hydroxyl groups included in Y1 of the chemical formula (1) to the number Z2 of an imide group included in the chemical formula (1) is 0.15≦Z1/Z2≦0.85.
Abstract:
A cable-type load sensor comprises two conductors arranged in parallel; and an elastic cladding layer with which surroundings of two conductors are covered. Each of two conductors comprises at least one of a nickel chromium system alloy, an iron nickel system alloy, a copper nickel system alloy, and a nickel titanium system alloy.
Abstract:
A metal fine particle for a conductive metal paste includes a protective agent covering a surface of the metal fine particle. An amount of heat generated per unit mass (g) of the metal fine particle is not less than 500 J at a temperature of an external heat source temperature in a range of 200° C. to 300° C. when being calcined by the external heat source. The protective agent includes at least one selected from the group consisting of dipropylamine, dibutylamine, triethylamine, tripropylamine, tributylamine, butanethiol, pentanethiol, hexanethiol, heptanethiol, octanethiol, nonanethiol, decanethiol, undecanethiol and dodecanethiol. The content of the protective agent is in a range of 0.1 to 20% by mass with respect to the mass of the metal fine particle.
Abstract:
There is provided a producing method of metal fine particles or metal oxide fine particles for producing metal fine particles or metal oxide fine particles by atomizing raw materials by performing processes including an oxidizing process and a reducing process to the raw materials composed of metal or a metal compound.
Abstract:
An insulated wire includes a conductor, and an insulating covering layer formed on a periphery of the conductor and including two or more insulating coatings. The insulating coatings include a polyamide-imide resin insulating material represented by chemical formula 1: where R indicates a divalent aromatic diamine including three or more aromatic rings. The insulating coatings are formed by applying and baking the polyamide-imide resin insulating material, and the polyamide-imide resin insulating material is obtained by reacting an imide group containing dicarboxylic acid with a diisocyanate, the imide group containing dicarboxylic acid being obtained by dehydration reaction of a diamine comprising a divalent aromatic diamine including three or more aromatic rings with an acid using an azeotropic solvent.
Abstract:
A coaxial cable includes an electric conductor, an insulating layer formed on a periphery of the electric conductor, wherein the insulating layer includes an insulating material including a fluorine-containing polymer obtained by grafting at least one compound selected from unsaturated carboxylic acids and esters of the unsaturated carboxylic acids to a tetrafluoroethylene-perfluoroalkylvinylether copolymer, a conductive layer formed on a periphery of the insulating layer, wherein the conductive layer includes a sintered product from a metallic nanoparticle paste, and an outer insulating layer formed on a periphery of the conductive layer.
Abstract:
A coaxial cable includes an internal insulating layer formed on an outer periphery of an electric conductor, and a conductive layer formed on an outer periphery of the internal insulating layer, wherein the conductive layer is made of a metal nanoparticle paste sintered body obtained by sintering metal nanopraticles by irradiation of light toward a metal nanoparticle paste, and an external insulating layer is formed on an outer periphery of the conductive layer.
Abstract:
An insulated wire uses a resin composition. The insulated wire includes a conductor; and an insulating material provided on the conductor, the insulating material includes a polyester resin in 100 parts by weight, a non-bromine flame retardant agent in 1-30 parts by weight, a polyorganosiloxane core-graft copolymer in 1-50 parts by weight, an inorganic porous filler in 0.1-50 parts by weight; and a hydrolysis resistance modifier in 0.05-10 parts by weight.
Abstract:
A metal fine particle includes one amine compound, and one compound causing an alkylation of the amine compound. The amine compound and the alkylation causing compound cover a surface of the metal fine particle. The alkylation causing compound includes an alkyl halide compound. The alkyl halide compound includes one of iodomethane, iodoethane, 1-iodopropane, 2-iodopropane, 1-iodobutane, 1-iodo-2-methylpropane, 1-iodopentane, 1-iodo-3-methylbutane, 1-iodohexane, 1-iodoheptane, 1-iodooctane, 1-iodononane, 1-iododecane, 1-iodoundecane, 1-iodododecane, 1-iodotridecane, 1-iodotetradecane, 1-iodopentadecane, 1-iodohexadecane, 1-iodoheptadecane, 1-iodooctadecane, 1-iodononadecane, and 1-iodoeicosane.