Abstract: An X-ray image photographing method and apparatus is capable of photographing a high resolution phase contrast image and a high resolution absorption contrast image in a short time by finely adjusting the distance between a specimen and a detector with respect to an X-ray source. The method enables photographing a fine structure with high space resolution while using an X-ray source having a finite size, and d/L is sufficiently smaller than 1, when L is a distance from an X-ray source to a specimen and d is a distance from the specimen to a detector.

Abstract: A covered conductor for wire harnesses, having a covering layer composed of a covering resin composition obtained by blending from 50 to 100 parts by weight of a metal hydrate and from 1 to 5 parts by weight of an external lubricant with 100 parts by weight of a base resin composition comprising from 50 to 75 parts by weight of a polypropylene-based resin, from 20 to 40 parts by weight of a propylene-?-olefin copolymer and the balance of a low-density polyethylene.

Abstract: Disclosed are a halogen-free resin composition, an insulated electric wire, and a wire harness, which can maintain long-term thermal resistance without decreasing established mechanical properties, flame retardancy, flexibility, and the like even when the insulated electric wire coated with the halogen-free resin composition is used in a state where it is mixed with an insulated electric wire coated with a PCV resin composition.

Abstract: The present invention provides a non-halogen resin composition, an insulated electrical wire formed of the non-halogen resin composition, and a wire harness including the insulated electrical wire. The non-halogen resin composition, comprising: (A) 100 parts by weight of a base resin, containing 50 to 75 weight percent of a polypropylene, 20 to 40 weight percent of a propylene-alpha olefin copolymer, and 5 to 10 weight percent of a low density polyethylene; (B) 50 to 100 parts by weight of a metal hydroxide; (C) 3 to 5 parts by weight of a phenolic anti-oxidant; and (D) 0.5 to 2 parts by weight of a hydrazine-containing metal capture agent. The non-halogen resin composition exhibits excellent mechanical properties such as abrasion resistance, flame retardant property, flexibility, and long-term heat resistance, even if it contains inorganic flame retardant therein.

Abstract: A halogen-free resin composition for a covered wire and a wiring harness which has a base resin composition of 100 weight division having 45 to 65% by weight of a polypropylene resin, 15 to 30% by weight of a low-density polyethylene resin, 15 to 30% by weight of a styrene thermoplastic elastomer, and a metal hydrate of 80-120 weight division. The styrene thermoplastic elastomer of the composition is an aromatic vinyl-conjugated diene system block copolymer and with a peak temperature of dynamic factor (tan ?) thereof measured in a range from ?100 to 50° C. by a dynamic viscoelasticity measurement device being made in 0-30° C.

Abstract: For providing a halogen-free resin composition, a covered wire and a wiring harness which can improve mechanical characteristics, abrasion resistance, flame retardant performance and flexibility even if flame retardant is added, a halogen-free resin composition includes a base resin composition of 100 weight division having 45 to 65% by weight of a polypropylene resin, 15 to 30% by weight of a low-density polyethylene resin, and 15 to 30% by weight of a styrene thermoplastic elastomer, and metal hydrate of 80-120 weight division. The styrene thermoplastic elastomer is an aromatic vinyl-conjugated diene system is block copolymer and peak temperature of dynamic factor (tan ?) thereof measured in a range from ?100 to 50° C. by a dynamic viscoelasticity measurement device is made in 0-30° C.

Abstract: The present invention provides a non-halogen resin composition, an insulated electrical wire formed of the non-halogen resin composition, and a wire harness including the insulated electrical wire. The non-halogen resin composition, comprising: (A) 100 parts by weight of a base resin, containing 50 to 75 weight percent of a polypropylene, 20 to 40 weight percent of a propylene-alpha olefin copolymer, and 5 to 10 weight percent of a low density polyethylene; (B) 50 to 100 parts by weight of a metal hydroxide; (C) 3 to 5 parts by weight of a phenolic anti-oxidant; and (D) 0.5 to 2 parts by weight of a hydrazine-containing metal capture agent. The non-halogen resin composition exhibits excellent mechanical properties such as abrasion resistance, flame retardant property, flexibility, and long-term heat resistance, even if it contains inorganic flame retardant therein.

Abstract: To provide a halogen-free resin composition, an insulated electric wire, and a wire harness, which can maintain long-term thermal resistance without decreasing established mechanical properties, flame retardancy, flexibility, and the like even when the insulated electric wire coated with the halogen-free resin composition is used in a state where it is mixed with an insulated electric wire coated with a PCV resin composition. The halogen-free resin composition comprises 100 parts by weight of a base resin consisting of 70 to 90% by weight of a polypropylene-based resin and 30 to 10% by weight of an olefin-based or styrene-based thermoplastic elastomer, 50 to 100 parts by weight of a metal hydrate, 3 to 5 parts by weight of a phenol-based antioxidant, 0.1 to 1.0 part by weight of a salicylic acid-based metal scavenger, 3 to 5 parts by weight of a hydrazine-based metal scavenger, and 1 to 10 parts by weight of a metal oxide.

Abstract: A resin composition for extrusion molding is obtained by kneading materials including a base resin material and an antioxidant in a kneading step and then making a resulting resin composition into pellets. The resin composition is made reusable by mixing the antioxidant the amount of which is at least twice as much as an amount of the antioxidant which is to be consumed in the kneading step and an extrusion-molding step.