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公开(公告)号：US20240002636A1
公开(公告)日：2024-01-04
申请号：US18038006
申请日：2021-11-19
发明人： Syota MACHINAKA , Shigeyuki TANAKA , Taro FUJITA , Satoshi OKANO , Yuji OCHI
摘要： An insulated electric wire according to one aspect includes at least one linear conductor, and at least one insulating layer layered on the outer peripheral surface of the conductor, wherein the insulating layer contains an olefinic resin and an antioxidant, the content of the antioxidant is more than 1.0 part by mass and 5.0 parts by mass or less per 100 parts by mass of the olefinic resin, and the antioxidant comprises a phenolic antioxidant and a sulfur-based antioxidant except for a sulfur-containing phenolic antioxidant.
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公开(公告)号：US20230290535A1
公开(公告)日：2023-09-14
申请号：US18019430
申请日：2021-07-21
发明人： Shigeyuki TANAKA , Taro FUJITA , Atsuko SHINOMIYA , Jo YAGISAWA
CPC分类号： H01B3/441 , H01B7/0009 , H01B7/282
摘要： An insulated electric wire includes a conductor formed of a plurality of element wires twisted together, and an insulating layer covering an outer periphery of the conductor. The insulating layer is formed of a crosslinked product of a polymer composition. The polymer composition contains, as a main component, an ethylene-based copolymer, polyethylene, or a combination of an ethylene-based copolymer and polyethylene. The crosslinked product has a gel fraction of 60% or more, and the crosslinked product has a tensile elongation of 150% or more.
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公开(公告)号：US20230034227A1
公开(公告)日：2023-02-02
申请号：US17765186
申请日：2019-10-30
发明人： Shigeyuki TANAKA , Yutaka MATSUMURA , Taro FUJITA , Takumi OOSHIMA , Jo YAGISAWA
摘要： An electrically insulated cable including: a core electric wire; and a covering layer covering the core electric wire; wherein: the core electric wire includes a plurality of insulated wires; the insulated wires each include a conductor and an insulating layer covering the conductor; and the covering layer contains a crosslinked polyethylene-based resin and a flame retardant in the front surface side thereof.
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公开(公告)号：US20210319929A1
公开(公告)日：2021-10-14
申请号：US17268214
申请日：2019-07-19
IPC分类号： H01B7/18 , B60R16/023
摘要： Provided is an insulated electrical cable including: a core wire made up of at least one insulated wire including a conductor and an insulating layer covering the conductor; an inner sheath layer covering the core wire; and an outer sheath layer covering the inner sheath layer. The inner sheath layer has an elastic modulus A at −30° C. in a range from 10 MPa to 1000 MPa.
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公开(公告)号：US20210163728A1
公开(公告)日：2021-06-03
申请号：US17045548
申请日：2019-03-11
发明人： Syota MACHINAKA , Taro FUJITA , Shigeyuki TANAKA , Nayu YANAGAWA , Yuji OCHI , Satoshi OKANO , Yuto KOBAYASHI
IPC分类号： C08L23/16 , C08K5/3472 , C08K5/25 , H01B3/44 , H01B11/18
摘要： According to one aspect of the present invention, a resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein a content of the metal deactivator exceeds 0.05% by mass, and wherein a melting point of the metal deactivator is greater than or equal to 200° C.
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公开(公告)号：US20190164664A1
公开(公告)日：2019-05-30
申请号：US16251525
申请日：2019-01-18
CPC分类号： H01B7/1875 , H01B3/307 , H01B3/443 , H01B7/0208 , H01B7/187
摘要： 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.
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公开(公告)号：US20180294074A1
公开(公告)日：2018-10-11
申请号：US16009010
申请日：2018-06-14
发明人： Shigeyuki TANAKA , Taro FUJITA , Shinya NISHIKAWA , Atsuko SHINOMIYA , Yuji OCHI
摘要： 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.
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公开(公告)号：US20200273606A1
公开(公告)日：2020-08-27
申请号：US16862904
申请日：2020-04-30
发明人： Shigeyuki TANAKA , Shinya NISHIKAWA , Hiroyuki OKAWA , Takaya KOHORI , Yuhei MAYAMA , Takayuki HIRAI
摘要： 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 μm to 100 μm, 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. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an α-olefin having a carbonyl group.
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公开(公告)号：US20190318846A1
公开(公告)日：2019-10-17
申请号：US16453536
申请日：2019-06-26
发明人： Shigeyuki TANAKA , Shinya NISHIKAWA , Hiroyuki OKAWA , Takaya KOHORI , Yuhei MAYAMA , Takayuki HIRAI
摘要： 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 μm to 100 μm, 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. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an α-olefin having a carbonyl group.
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公开(公告)号：US20190074108A1
公开(公告)日：2019-03-07
申请号：US16155216
申请日：2018-10-09
发明人： Shigeyuki TANAKA , Shinya NISHIKAWA , Hiroyuki OKAWA , Takaya KOHORI , Yuhei MAYAMA , Takayuki HIRAI
CPC分类号： H01B11/02 , H01B3/44 , H01B3/441 , H01B3/447 , H01B3/448 , H01B7/0009 , H01B7/02 , H01B7/0208 , H01B7/0275 , H01B7/1875 , H01B7/29 , H01B7/30 , H01B13/02 , H01B13/0221 , H01B13/22
摘要： 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 μm to 100 μm, 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. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an α-olefin having a carbonyl group.
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