摘要:
An insulating varnish for forming an insulating covering on a conductor includes a polyimide resin including a repeat unit represented by a general formula (1): where X1 includes a tetravalent aromatic group including an aromatic ether structure represented by a formula (3): and Y1 includes a bivalent aromatic group including an aromatic ether structure, and a repeat unit represented by a general formula (2): where X2 includes a tetravalent alicyclic group and Y2 includes a bivalent alicyclic group including an alicyclic structure.
摘要:
A polyester resin composition according to the present invention includes: a PBT resin; a styrene system elastomer; and a compound having a glycidyl group or a polyolefin composition in an amount of 50-80 wt %, 10-30 wt % and 10-30 wt %, respectively.
摘要:
A heat-resisting plastic optical fiber which excels in heat resistance and mass production and a manufacturing method thereof. The heat-resisting plastic optical fiber has a core which consists of transparent resin, and clad coated on the outer periphery of the core, which consists of the resin whose refractive index is lower than that of core. Precursor of material for the core material consists of the mixture of a group of monomers which contain polyfunctional monomer and transparent thermoplastic polymer.
摘要:
A polyester resin composition according to the present invention includes: a PBT resin; a styrene system elastomer; and a compound having a glycidyl group or a polyolefin composition in an amount of 50-80 wt %, 10-30 wt % and 10-30 wt %, respectively.
摘要:
A cord switch 1 has wire electrodes 12A, 12B spirally arranged along an inner surface of a hollow part 10 of a hollowed insulator 11 in a longitudinal direction such that the wire electrodes do not electrically contact with each other, an outer electrode 13 provided around an outer periphery surface of the hollowed insulator 11 and jacketed with an insulating layer 14. An electrostatic capacitance is formed between the outer electrode 13 and a wire electrode for grounding, and a floating electrostatic capacitance is formed between the outer electrode 13 and the earth. The close approach of the human body to the cord switch 1 can be detected in a non-contact manner by measuring the alteration in the electrostatic capacitance.
摘要:
An illumination device comprises a light source like a halogen lamp, a light guide, a round rod-shaped transparent radiation member having a proximal end and a distal end, and a transparent radiation plate. The light guide is a plastic optical fiber comprising a single core of silicon rubber and a cladding layer of tetrafluoroethylene/hexafluoropropylene copolymer. The radiation member is a transparent circular cylinder made of acrylic resin, and has a predetermined pattern of light scattering regions on its surface oppose the directions where the light is radiated. The radiation plate is placed such a position that one side plane of the radiation plate oppose to he radiation member, and also has a predetermined pattern of light scattering regions on the back. The light scattering regions are provided along said radiation member in such a way that a ratio of an tea of one region to that of adjacent region becomes larger as the one region becomes distant from the proximal and of the radiation member.
摘要:
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.
摘要:
There is provided an insulated wire equipped with an insulation film made of polymer alloy, the polymer alloy comprising an amorphous thermosetting resin and an amorphous thermoplastic resin, in which: the insulation film has a sea-island structure; the amorphous thermosetting resin is a sea component of the sea-island structure; and the amorphous thermoplastic resin is an island component of the sea-island structure.
摘要:
An insulating varnish includes a polyamide-imide resin including a repeat unit represented by Formula (1) below derived from a synthesis reaction between a resin component (X) and a diisocyanate component (Y). The resin component (X) is derived from a synthesis reaction between a diamine component including aromatic diamines including g a divalent aromatic group (R) including three or more aromatic rings, and an acid component in the presence of an azeotrope solvent. The diisocyanate component (Y) includes a 2,4′-diphenylmethane diisocyanate (Y1) and a 4,4′-diphenylmethane diisocyanate (Y2). In Formula (1), R denotes the divalent aromatic group including three or more aromatic rings, and m and n denote an integer of from 1 to 99.
摘要:
There is provided an enameled insulated wire, which includes: a metal conductor; an intermediate layer around the metal conductor, the intermediate layer containing metal oxide particles, the metal oxide particles including at least one oxide selected from a group consisting of zinc oxides, tin oxides, compound oxides of zinc and the metal constituent of the metal conductor, and compound oxides of tin and the metal constituent of the metal conductor, diameter of the metal oxide particles being predominantly from 1 to 50 nm; and an insulation coating around the intermediate layer.