Abstract: A cable includes at least one core that has a conductor and an insulating coating layer that covers the conductor; and a sheath layer that covers the at least one core. The sheath layer includes an inner sheath layer and an outer sheath layer that covers the inner sheath layer. The inner sheath layer contains a silane-crosslinked very low density polyethylene. A main component of the outer sheath layer is polyurethane; a content of the very low density polyethylene per 100 parts by mass of a resin component in the inner sheath layer is 20 parts by mass or more and 100 parts by mass or less. A content of silicon atoms constituting silane crosslinks in the very low density polyethylene is 0.05 mass % or more and 1 mass % or less.

Abstract: Provided is an insulating resin composition that contains a resin component containing a first copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms, a second copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms, which is subjected to acid modification, and which has a density of less than 0.88 g/cm3, and a third copolymer which is a copolymer of ethylene and an acrylic acid ester or the like, in which a ratio of contents of the first to third copolymers is within a specific range, and 30 to 100 parts by mass of a flame retardant and 1 to 5 parts by mass of a crosslinking assistant relative to 100 parts by mass of the resin component.

Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.

Abstract: A cable includes at least one core that has a conductor and an insulating coating layer that covers the conductor; and a sheath layer that covers the at least one core. The sheath layer includes an inner sheath layer and an outer sheath layer that covers the inner sheath layer. The inner sheath layer contains a silane-crosslinked very low density polyethylene. A main component of the outer sheath layer is polyurethane; a content of the very low density polyethylene per 100 parts by mass of a resin component in the inner sheath layer is 20 parts by mass or more and 100 parts by mass or less. A content of silicon atoms constituting silane crosslinks in the very low density polyethylene is 0.05 mass % or more and 1 mass % or less.

Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.

Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.

Abstract: An insulated electric wire includes a conductor and an insulating layer covering an outer periphery of the conductor. The insulating layer is formed of a crosslinked polymer of an insulating resin composition that contains a resin component containing a first copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density of less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density of 0.88 g/cm3 or more and less than 0.

Abstract: Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C.

Abstract: Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C.

Abstract: A core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.

Abstract: A cable includes at least one core that has a conductor and an insulating coating layer that covers the conductor; and a sheath layer that covers the at least one core. The sheath layer includes an inner sheath layer and an outer sheath layer that covers the inner sheath layer. The inner sheath layer contains a silane-crosslinked very low density polyethylene. A main component of the outer sheath layer is polyurethane; a content of the very low density polyethylene per 100 parts by mass of a resin component in the inner sheath layer is 20 parts by mass or more and 100 parts by mass or less. A content of silicon atoms constituting silane crosslinks in the very low density polyethylene is 0.05 mass % or more and 1 mass % or less.

Abstract: A molding die includes: a pair of dies, i.e., a first die and a second die respectively having abutting surfaces; a first die part and a second die part respectively having cavity forming portions inside which a cavity is formed, and thick portions provided at both ends of the cavity forming portions, the die parts being detachably fitted to die part attachment grooves provided in the abutting surfaces of the pair of dies; and induction heating coils for heating a surface of the cavity, wherein thicknesses of the cavity forming portions are smaller than thicknesses of the thick portions, and the distance between the induction heating coils and the cavity is smaller than the thicknesses of the thick portions.

Abstract: A core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 and 2,450.

Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.

Abstract: Provided are a core electric wire for a multi-core cable superior in flex resistance at low temperature, and a multi-core cable employing the same. The core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.

Abstract: Provided is an anticorrosive polyamide resin composition having excellent anticorrosive capability by possessing excellent adhesive strength to a polyolefin resin and a metal and excellent elongation. The anticorrosive polyamide resin composition contains a resin component that contains 70 to 90 mass % of a polyamide resin, and 30 to 10 mass % of an acid-modified polyolefin resin. A maleic acid anhydride-modified polyolefin resin is preferably used as the acid-modified polyolefin resin. Polypropylene is preferably used as the polyolefin resin.

Abstract: Provided are reinforcing tape for a flat cable, which can maintain sufficient adhesive force for a long time in a high-temperature, high-humidity environment, and a flat cable that uses this reinforcing tape for a flat cable. The present invention provides a reinforcing tape for a flat cable, the reinforcing tape including a base layer containing a resin as a main component, and an adhesive layer stacked on one side of the base layer, in which the adhesive layer contains a thermoplastic resin and a polycarbodiimide compound, and the polycarbodiimide compound contains an isocyanate group. The content of the polycarbodiimide compound relative to 100 parts by mass of the thermoplastic resin is preferably 0.5 parts by mass or more and 10 parts by mass or less. The polycarbodiimide compound preferably further contains an alicyclic structure.

Abstract: A wire harness includes a terminated covered electric wire. The terminated covered electric wire includes a terminal fitting, an electric wire conductor, and an electrical connection portion in which the terminal fitting and the electric wire conductor are electrically connected to each other. The terminal fitting has a surface to which processing oil adheres, and the electrical connection portion is covered with an anticorrosive agent containing an adhesive resin and an oil-adsorbing organic macromolecule to configure a terminated covered electric wire.

Abstract: It is aimed to provide a sound-absorbing material and a wiring harness with sound-absorbing material capable of absorbing sound in a wide frequency range from a low frequency to a high frequency and avoiding a weight increase. A sound-absorbing material 1 is configured by laminating base material sheets 3 using non-woven fabrics and a skin material sheet 2 having a smaller basis weight than the base material sheets 3 such that the skin material sheet 2 is arranged between the plurality of base material sheets 3 and an air permeation amount of the sound-absorbing material is within a range of 5 to 50 cm3/cm2·s.

Abstract: It is aimed to provide a wiring harness protection material utilized as a wiring harness protection member and having protection performance in a high-temperature and high-humidity environment and a wiring harness. A wiring harness 1 is formed by molding wiring harness protection materials 1 using a thermally moldable nonwoven fabric containing polyethylene terephthalate fibers having a weight-average molecular weight in a range of 10000 to 200000 into a wiring harness protection member 2 having a predetermined shape and covering a wire bundle 4 with the wiring harness protection member 2.