Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Masato Inoue

Masashi Sato

Tsuyoshi Nonaka

Yukihiro Sakamoto

Yoshiharu Deguchi

Naoaki Sawamura

Yasuyuki Otsuka

Tatsuya Hase

Tetsuya Iwasaki

Daisuke Hashimoto

Shigeyuki Tanaka

Hiroshi Hayami

Takehiro Hosokawa

Tetsuya Nakamura

Tatsuya Shimada

Fumitoshi Imasato

Masuo Iida

Naoya Nishimura

Hiroshi Sudou

Mamoru Kondo

Osamu Ohama

Yukou Sato

Soichirou Tsukamoto

Kazunari Sakura

Yuuji Tanaka

Yukiyasu Sakamoto

Hiroshi Yamaguchi

Hisahiro Yasuda

A flame retardant that is arranged to improve the cold resistance and the productivity of a composition, a flame-retardant composition, an insulated wire, a wiring harness, and a method for manufacturing the flame-retardant composition. The flame retardant includes a pulverized natural mineral which is mainly composed of magnesium hydroxide, wherein the pulverized natural mineral is surface-treated with an organic high polymer such as polyolefin. The amount of surface treatment is within a range of 0.1 to 10 mass %. The flame-retardant composition includes 30 to 250 parts by mass of the flame retardant with respect to 100 parts by mass of an organic high polymer such as polyolefin. The insulated wire includes a conductor and the flame-retardant composition which covers the conductor, and the wiring harness includes the insulated wire.

Flame retardant, a flame-retardant composition, an insulated wire, a wiring harness, and a method for manufacturing the flame-retardant composition

A wiring harness which is excellent in peel strength at a joining portion where conductors of electric wires are joined together, even if at least one of the electric wires have a small diameter. A wiring harness includes insulated wires whose conductors are partly exposed, and a metal leaf with which the exposed conductors are bound, where the bound conductors are welded preferably by ultrasonic welding, and the conductors including elemental wires have a joining portion where the elemental wires are joined together, the joining portion being inside the metal leaf. The elemental wires and the metal leaf are preferably made from copper, a copper alloy, aluminum and/or an aluminum alloy, and are preferably made from a same metal or a same alloy. At least one of the conductors preferably has a cross-sectional area of 0.35 mmor less.

Wiring harness and a method for producing the same, and a method for connecting insulated wires

A terminal structure of a wiring harness for automobile use having a profound anticorrosive effect. A terminal member is fixed to a terminal portion of a coated electric wire such that a crimping portion that the member includes at its one end is crimped around a coating portion of the wire in a terminal region of the wire. A resin member completely covers at least entire outer surfaces of an exposed region at an end portion of the crimping portion and its vicinal region, and is made from a material mainly containing a thermoplastic polyamide resin, and having a tensile lap-shear strength of lapped aluminums of 6 N/mmor more in accordance with the JIS K6850, an elongation of 100% or more in accordance with the ASTM D-1708, and a water absorption of 1.0% or less in accordance with the JIS K7209.

Terminal structure of wiring harness

An insulated electric wire having an external diameter of less than 1.1 mm includes a conductor and an insulator that covers the conductor, and the insulator has a thickness of 0.25 mm or less, and is made from a material that is free from a halogen element and has a breaking elongation of 10% or more and a flexural modulus of more than 2.0 GPa.

Insulated electric wire and wiring harness

An insulated wire including a conductor, an inside coat of one or more layers arranged to cover the conductor, and an outside coat arranged to cover the outermost layer of the inside coat, wherein at least the layer of the inside coat which is in contact with the conductor is made from an olefin resin including a functional group, and the outside coatis made from a non-halogenous flame-retardant resin composition. The functional group is preferably one or more groups selected from a carboxylic acid group, an acid anhydrous group, an epoxy group, a hydroxyl group, an amino group, an alkenyl cyclic imino ether group, and a silane group.

Insulated wire and a wiring harness

A wire covering material composition which is systematically different from a polyolefin resin composition and which possesses favorable flame retardancy, tensile elongation and wear resistance, having 100 parts by weight of a polymer blend containing 40-95 wt % of polybutylene terephthalate, and 1 to 30 parts by weight of a phosphoric ester compound with respect to 100 parts by weight of the polymer blend, wherein 5 to 100 wt % of the total content of the polybutylene terephthalate in the polymer blend is made up of polybutylene terephthalate, whose molecular weight distribution Mw/Mn (where Mw: weight-average molecular weight; Mn: number-average molecular weight) is greater than or equal to 2.5.

Wire covering material composition, an insulated wire and a wiring harness

An insulated wire possessing preferable flame retardancy, water resistance and wear resistance. The insulated wire including an insulator layer made from a composition including 96 to 44 parts by weight of (A) a polyester type resin, 4 to 56 parts by weight of (B) a polyphenylene ether type resin, 1 to 70 parts by weight of (C) one or more than one sort of polymer selected from the group consisting of a styrene type polymer, an olefin type polymer including a functional group, and a polymer including an ester group with respect to 100 parts by weight of (A) the polyester type resin and (B) the polyphenylene ether type resin, and 1 to 50 parts by weight of (D) a phosphoester compound with respect to 100 parts by weight of (A) the polyester type resin and (B) the polyphenylene ether type resin.

To provide a non-crosslinked flame-retardant resin composition delivering excellent heat resistance without deteriorating over a long period of time, as well as possessing sufficient flame retardancy, mechanical properties, flexibility and workability, and an insulated wire and a wiring harness using the same. The non-crosslinked flame-retardant resin composition includes (B) a metallic hydrate, (C) a hindered phenolic antioxidant, (D) a sulfurous antioxidant, and (E) a metallic oxide in (A) a non-crosslinked base resin which includes a propylene resin containing 50 wt % or more of propylene monomer. It is preferable to utilize an imdazole compound as the ingredient (D) and an oxide of zinc as the ingredient (E). In addition, the composition is used as an insulated covering material for a non-halogenous insulated wire, which is used in a wire bundle of the wiring harness.

Non-crosslinked flame-retardant resin composition, and an insulated wire and a wiring harness using the same

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Yokkaichi, Japan

Masato Inoue