Abstract:
A flame retardant, halogen-free polymer composition that is a blend of: (1) a polyolefin selected from (a) EVA containing 25-90% by weight ethylene and 10-75% by weight vinyl acetate, (b) LLDPE, (c) LDPE, (d) VLDPE, (e) HDPE, or mixtures thereof; (2) a coupling agent made from (f) about 10 to about 50% by weight of a copolymer of ethylene and about 1% by weight to about 15% by weight functional comonomer and (g) about 50% by weight to about 90% by weight of an ethylene-based polymer; and (3) an inorganic flame retardant filler.
Abstract:
PROBLEM TO BE SOLVED: To provide a flame-retardant member having curl resistance, transparency, flexibility and high-level flame retardancy.SOLUTION: This flame-retardant polymer member has the curl resistance, and includes a polymer layer B and a flame-retardant layer A on at least one face of the polymer layer B. A structure of a polymer inside the polymer layer B is an uncrosslinked structure or a semi-interpenetrating polymer network structure, and the flame-retardant layer A is a layer containing a stratified inorganic compound inside the polymer.
Abstract:
PROBLEM TO BE SOLVED: To provide a prepreg capable of providing a carbon fiber reinforced composite material having an excellent impact resistance and conductivity together.SOLUTION: The prepreg includes [A] a carbon fiber and [B] a thermosetting resin, and satisfies at least one of (1) [C] a thermoplastic resin particle or fiber and [D] a conductive particle or fiber are contained, and weight ratio expressed by [compounding amount of [C] (pts.wt.)]/[compounding amount of [D] (pts.wt.)] is 1 to 1,000 and (2) [E] a conductive particle or fiber in which a thermoplastic resin nucleus or core is coated with a conductive substance is contained.
Abstract:
PROBLEM TO BE SOLVED: To provide a prepreg to produce a carbon fiber-reinforced composite material combined with both an excellent impact resistant property and an electrical conductivity.SOLUTION: The prepreg includes [A] the carbon fiber and [B] a thermosetting resin, and further satisfies at least one of (1) and (2) below. (1) [C] Thermoplastic resin particles or fiber and [D] electrically conductive particles or fiber are included, wherein the weight ratio of blending quantities (pts.wt) in [C]/[D] are 1-1,000. (2) [E] The electrically conductive particles or fiber, whose thermoplastic resin cores or centers are coated with an electrically conductive material, is included.
Abstract:
Highly-mineral-filled, halogen-free, flame-retardant compositions made from or containing a polypropylene thermoplastic elastomer, a polypropylene, a metal hydroxide filler, and a polar-monomer-grafted polyolefin elastomer compatibilizer. Such compositions can be employed in preparing various articles of manufacture, including extruded articles and coated conductors, such as cables.
Abstract:
PROBLEM TO BE SOLVED: To provide a flame-retarding thermoplastic resin composition excellent in flame-retardancy, moldability and heat resistance, and also to provide a molded product of the above composition. SOLUTION: The flame-retarding thermoplastic polymer composition comprises: (a) at least one kind of a block copolymer selected from block copolymers having a polymer block A consisting mainly of an α-methylstyrene unit and a polymer block B consisting of a conjugated diene unit and its hydrogenated product; (b) a polyolefin-based resin; and (c) a metal hydrate. The amount of the polyolefin-based resin (b) is 20-600 pts.mass for 100 pts.mass of the block copolymer (a) and the amount of the metal hydrate (c) is 50-300 pts.mass for 100 pts.mass of the total amount of the block copolymer (a) and the polyolefin-based resin (b). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a resin processed article for arc extinguishment excellent in uninflammability, with little contribution to inner pressure rise, capable of generating thermal decompression gas enabled to efficiently extinguish arc generated at circuit break, and endowed with heat resistance standing temperature rise as well as pressure resistance standing the inner pressure rise at that time, and to provide a circuit breaker using the same. SOLUTION: The circuit breaker is provided with a fixed contactor 5 with a fixed contact point 7, a movable contactor 1 with a movable contact point 6, and an arc-extinguishing device for extinguishing arc generated when the fixed contactor 5 and the movable contactor 1 make a switching operation. For the arc-extinguishing device, the resin processed article for arc extinguishment 13 is used made by molding and giving radiation crosslinking on a resin composition containing polyolefin resin (A) with a part of hydrogen atoms of methylene chain substituted with a hydroxyl group and containing 0.2 to 0.7 mol of the hydroxyl group to 1 mol of a methylene group, a micro capsule (B) containing water as a core material, and a reactive organophosphorus flame retardant (C) containing a terminal unsaturated bond. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
To provide a non-crosslinked flame-retardant resin composition possessing sufficient flame retardancy, mechanical properties, flexibility and workability, and also delivering excellent heat resistance over a long period of time as it is hard to be molten when used under high temperature environment and its material is not deteriorated even if used in contact with a vinyl chloride resin material and the like, and an insulated wire and a wiring harness using the same. The composition includes (A) a non-crosslinked base resin which contains a propylene resin containing 50 wt % or more of propylene monomer and a thermoplastic resin of which a melting point is 180° C. or more, (B) a metallic hydrate, (C) a hindered phenolic antioxidant, (D) a sulfurous antioxidant, and (E) a metallic oxide. Polymethylpentene, an imidazole compound and an oxide of zinc are preferably utilized as the thermoplastic resin, the ingredients (D) and (E), respectively. 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.