Patent application number | Description | Published |
20100051316 | RADIATION-PROOF RESIN COMPOSITION AND RADIATION-PROOF CABLE - A radiation-proof resin composition includes a polymer containing chlorine, a radiation resistance providing agent for providing the polymer with a radiation resistance, an amorphous inorganic material for capturing an ionic component generated in the polymer by radiation application, and a reinforcing material for reinforcing a mechanical strength of the polymer. An amount of the reinforcing material is not more than that of the amorphous inorganic material. | 03-04-2010 |
20100084181 | RADIATION-PROOF SHEATH MATERIAL AND RADIATION-PROOF CABLE - A radiation-proof sheath material includes a polymer material containing molecular chains of ethylene units as a main component in which side chain groups are randomly distributed and cross-linked, an antioxidant, a processing aid, and a flame retardant. The polymer material includes chlorinated polyethylene containing chloro groups in the side chain groups. | 04-08-2010 |
20100155102 | RADIATION RESISTANT COMPOSITION, WIRE AND CABLE - A radiation resistant composition includes 100 parts by weight of a polymer, 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis, and a radiation resistance imparting agent. The polymer is cross-linked or vulcanized. A wire or a cable includes an insulation and/or a sheath material including the radiation resistant composition. | 06-24-2010 |
20110200289 | HIGH VOLTAGE CABTIRE CABLE - A high voltage cabtire cable | 08-18-2011 |
20110209898 | RADIATION RESISTANT ELECTRIC WIRE AND RADIATION RESISTANT CABLE - A radiation resistant electric wire includes: a conductor; an inner insulating layer comprising a naphthylene group-containing polymer; and an outer insulating layer comprising a cross-linked polyolefin. The conductor is coated with the inner insulating layer and the outer insulating layer therearound. | 09-01-2011 |
20120213246 | Method for Evaluating Life of Cable Insulating Coating Material - Disclosed is a method for estimating, within a short time, the life of a cable insulating coating material containing an antioxidant in a suitable concentration based on the rate of decrease of the antioxidant and on the critical concentration of the antioxidant at which oxidative degradation rapidly proceeds. The method tests the coating material to examine its life, the coating material including a base polymer, and an antioxidant having a functional group suppressing an oxidative deteriorative reaction of the base polymer. The method includes performing a thermal degradation test on the coating material; determining the degradation levels and degradation rates of the coating material at two or more time points in the thermal degradation test, based on the ratio of the absorbance of the functional group of the antioxidant to the absorbance of the base polymer; and thereby evaluating the life of the coating material. | 08-23-2012 |
20140030520 | HALOGEN-FREE FLAME-RETARDANT POLYMER COMPOSITION, INSULATED ELECTRIC WIRE, AND CABLE - A halogen free flame-retardant polymer composition includes flame retardancy and excellent oil resistance/fuel resistance, low-temperature characteristics, and injury resistance, and an insulated electric wire and a cable include the composition. The halogen-free flame-retardant polymer composition includes a base polymer including 60 to 70% by mass of LLDPE, 10% by mass or more of EVA having a melt flow rate (MFR) of 100 or more, and 10 to 20% by mass of maleic acid-modified polyolefin, a metal hydroxide added at a ratio of 150 to 220 parts by mass relative to 100 parts by mass of the base polymer, and carbon black. The addition ratio (metal hydroxide/carbon black) between the metal hydroxide and the carbon black is 15:1 to 100:1. | 01-30-2014 |
20140141241 | HALOGEN-FREE HEAT AGING-RESISTANT FLAME-RETARDANT RESIN COMPOUND AND WIRE AND CABLE USING THE SAME - A halogen-free heat aging-resistant flame-retardant resin compound includes a mixture of 100 parts by mass of polyolefin-based resin, 100 to 250 parts by mass of metal hydroxide, and 2 to 5 parts by mass of an antioxidant including a first antioxidant having a melting point of not less than 200 degrees Celsius and a mean particle diameter of not greater than 10 μm solely or a combination with a second antioxidant, and the mixture is cross-linked. | 05-22-2014 |
20140290976 | HALOGEN-FREE EXTRA-HIGH-VOLTAGE CABLE FOR RAILWAY ROLLING STOCK - A halogen-free extra-high-voltage cable for railway rolling stock includes a stranded conductor, an inner semi-conducting layer covering the stranded conductor, an outer semi-conducting layer provided on an outer periphery of the inner semi-conducting layer via an insulation layer, and a sheath layer on an outer periphery of the outer semi-conducting layer, the sheath layer containing 80 to 200 parts by weight of metal hydroxide and 0.5 to 10 parts by weight of cross-linking agent with respect to 100 parts by weight of olefin-based polymer containing ethylene-vinyl acetate copolymer as a main component, the ethylene-vinyl acetate copolymer having a vinyl acetate content of not less than 40 wt % and less than 50 wt % and a melt flow rate of not more than 2.5 g/10 min and a resin composition is cross-linked. | 10-02-2014 |
20140367144 | HALOGEN-FREE FLAME-RETARDANT RESIN COMPOSITION, AND WIRE AND CABLE USING THE SAME - A halogen-free flame-retardant resin composition includes a base polymer including not less than 5 mass % of an ethylene-α-olefin block copolymer having a melting point of not less than 118° C. and a glass transition temperature (Tg) of not more than −40° C., and a metal hydroxide added in an amount of 50 to 250 parts by mass per 100 parts by mass of the base polymer. | 12-18-2014 |