摘要:
Provided are a non-halogen flame-retardant resin composition that contains a base polymer mainly containing a polyolefin-based resin, that passes a flame test, and that has good heat resistance and good heat-aging resistance which can satisfy a 150° C. rating, and an insulated electric wire and a tube using the non-halogen flame-retardant resin composition. The non-halogen flame-retardant resin composition contains (A) a base polymer containing 90% by mass or more of a mixture of a polyolefin-based resin and a styrene-based elastomer; (B) a metal phosphinate; and (C) a nitrogen-based flame retardant, and is used as an insulating coating layer. The insulating coating layer and the tube are preferably cross-linked by irradiation with ionizing radiation.
摘要:
Provided are a non-halogen flame-retardant resin composition that contains a base polymer mainly containing a polyolefin-based resin, that passes a flame test, and that has good heat resistance and good heat-aging resistance which can satisfy a 150° C. rating, and an insulated electric wire and a tube using the non-halogen flame-retardant resin composition. The non-halogen flame-retardant resin composition contains (A) a base polymer containing 90% by mass or more of a mixture of a polyolefin-based resin and a styrene-based elastomer; (B) a metal phosphinate; and (C) a nitrogen-based flame retardant, and is used as an insulating coating layer. The insulating coating layer and the tube are preferably cross-linked by irradiation with ionizing radiation.
摘要:
A halogen free flame retardant cable that has excellent flexibility and abrasion resistance, exhibiting fusion adhesion property to mold materials, such as PBT and nylon, and excellent flame retardant property, preferably having abrasion resistance. In particular, there is provided a halogen free flame retardant cable characterized in that it includes an insulating wire, an inner sheath and an outer sheath, the inner sheath comprised of a polyolefin resin or a resin composition composed mainly of the resin, the outer sheath comprised of a product of crosslinking of a mixture of thermoplastic polyurethane elastomer and thermoplastic polyester elastomer or a resin composition composed mainly of the mixture, the outer sheath containing at least one flame retardant selected from among metal hydroxides and nitrogenous flame retardants in an amount of 3 to 35 parts by weight per 100 parts by weight of the resin mixture. Further, there is preferably provided a halogen free flame retardant cable wherein the inner sheath contains a specified flame retardant in an amount of specified range.
摘要:
Provided are a halogen-free electric wire including an insulation coating the life of which is less reduced in the case of the insulating coating being in contact with a PVC-resin-containing member; a wire bundle including the halogen-free electric wire and a PVC-resin-containing member, wherein a reduction in the life of a covering material of the halogen-free electric wire is lessened; and an automotive wiring harness comprising the wire bundle. The halogen-free electric wire includes a conductor and a covering material that covers the outer surface of the conductor, wherein the covering material includes a polyolefin resin and a flame retardant, and the flame retardant contains aluminum hydroxide as a main component, in particular, at a ratio of 80 weight percent or more. The wire bundle includes the halogen-free electric wires and a member containing a vinyl chloride resin. The automotive wiring harness comprises the wire bundle.
摘要:
The present invention improves the concentricity after expansion process of a heat shrinkable tube which is required to have a thin wall and hardness, and further aims to obtain elongation of 100% or more in a heat aging test, copperstability test, and heat shock test. The heat shrinkable tube satisfying such aim uses a medium- or high-density polyethylene that has a molecular weight distribution (Mw/Mn) of 30 to 55, an MFR of 0.05 to 0.2, and a specific gravity of 0.94 to 0.96. A medium- or high-density polyethylene obtained by combining an ethylene-vinyl acetate copolymer, ethylene-ethylacrylate copolymer, ethylene-methylacrylate copolymer, and ethylene-ethylmethacrylate copolymer may be used. More preferably, for an antioxidant, phenol-based and sulfur-based antioxidants are used together and zinc oxide is added.
摘要:
An independent steering suspension for a steering vehicle wheel, including: a carrier for supporting the steering vehicle wheel; a knuckle for supporting the carrier to be angularly movable relative thereto about a steering axis; upper and lower arms mounted laterally between upper and lower portions of the knuckle and opposing portions of the vehicle body, respectively, the upper and lower arms each having a general plan configuration selected from alphabetic letters A, L, T and Y to have a broad end corresponding to the bottom of A or L or the top of T or Y and a narrow end corresponding to the top of A or L or the bottom of T or Y and being pivotably connected with the knuckle upper or lower portion at the broad end and with the vehicle body at the narrow end; a steering device mounted between the carrier and the vehicle body to variably determine an angular position of the carrier about the steering axis; and a damper and spring mounted between the knuckle and the vehicle body.
摘要:
The invention provides a heat recoverable article, like a heat shrinkable tubing, which is used for the joint or terminal arrangement of electric cables, wherein an inner layer is formed on the inner surface of the heat recoverable article comprising a polymer material. A resin composite containing ethylene alkyl(meth) acrylate carbon monoxide copolymer is used for the inner surface, to produce a heat shrinkable tubing having an outstanding adhesive property to adherents, without suffering from foaming during the manufacturing process since this inner layer has little hygroscopic property.
摘要:
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].
摘要:
Air-containing packages are subjected to heat sterilizing under pressure in a sterilization treatment tank. A pressure controlling method comprises changing the rate-of-rise of the temperature in the treatment tank in the vicinity of a point-of-change in a pressure rise in a pressure pattern in the package and delaying the timing of lowering the pressure in the treatment tank after the start of cooling treatment to avoid any deformation of the packages.
摘要:
A process for producing polychlorobenzonitrile having chlorine atoms at the 2,6-position by ammoxidation of toluene derivative having chlorine atoms at the 2,6-position with a gas containing ammonia and oxygen in vapor phase in the presence of a catalyst, characterized in that bromine and/or a bromine-containing compound is added to the reaction system.