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    Non-halogen multilayer insulated wire and method for producing the same
    7.
    发明授权
    Non-halogen multilayer insulated wire and method for producing the same 有权
    非卤素多层绝缘电线及其制造方法

    公开(公告)号：US09530536B2

    公开(公告)日：2016-12-27

    申请号：US14059142

    申请日：2013-10-21

    Applicant: Hitachi Metals, Ltd.

    Inventor： Kenichiro Fujimoto ,  Mitsuru Hashimoto ,  Hiroshi Nakashima

    IPC: H01B7/00 ,  H01B3/30 ,  H01B3/44 ,  H01B7/295 ,  H01B3/42

    CPC classification number: H01B3/421 ,  H01B3/441

    Abstract: A non-halogen multilayer insulated wire includes a conductor, an inner layer covering the conductor, and an outer layer formed on the external surface of the inner layer. The inner layer includes a polyolefin resin composition including 60 to 95 parts by mass of a high density polyethylene, 5 to 40 parts by mass of an ethylene copolymer, and 0.1 to 1 part by mass of a metal damage inhibitor. The outer layer includes a polyester resin composition that includes a base polymer mainly including a polyester resin, and further includes, relative to 100 parts by mass of the base polymer, 50 to 150 parts by mass of a polyester block copolymer, 0.5 to 5 parts by mass of a hydrolysis inhibitor, 0.5 to 5 parts by mass of an inorganic porous filler, and 10 to 30 parts by mass of magnesium hydroxide.

    Abstract translation: 非卤素多层绝缘线包括导体，覆盖导体的内层和形成在内层的外表面上的外层。 内层包括聚烯烃树脂组合物，其包含60至95质量份的高密度聚乙烯，5至40质量份的乙烯共聚物和0.1至1质量份的金属损伤抑制剂。 外层包括聚酯树脂组合物，其包含主要包含聚酯树脂的基础聚合物，并且相对于100质量份的基础聚合物，还包含50〜150质量份的聚酯嵌段共聚物，0.5〜5份 的水解抑制剂，0.5〜5质量份的无机多孔质填料和10〜30质量份的氢氧化镁。

    CABLE
    8.
    发明申请
    CABLE 审中-公开
    电缆

    公开(公告)号：US20160125973A1

    公开(公告)日：2016-05-05

    申请号：US14871773

    申请日：2015-09-30

    Applicant: Hitachi Metals, Ltd.

    Inventor： Makoto Iwasaki ,  Motoharu Kajiyama ,  Yoshiaki Nakamura ,  Hiroshi Okikawa ,  Mitsuru Hashimoto ,  Kenichiro Fujimoto ,  Akinari Nakayama

    IPC: H01B3/44

    Abstract: A cable includes a conductor, an insulation coating layer on the conductor, and an outer coating layer on the insulation coating layer. The insulation coating layer is made of a composition containing 100 parts by mass of a base polymer (A) and 100 to 250 parts by mass of a non-halogen flame retardant. The polymer (A) contains 70% to 99% by mass of an ethylene-vinyl acetate copolymer (a1) containing an ethylene-vinyl acetate copolymer having a melting point of 70° C. or higher, and 1% to 30% by mass of an acid-modified polyolefin resin (a2) having a glass transition point of −55° C. or lower. The polymer (A) contains 25% to 50% by mass of a vinyl acetate component derived from the copolymer (a1). The outer coating layer is made of a composition containing 100 parts by mass of a base polymer (B) and 150 to 220 parts by mass of a non-halogen flame retardant. The polymer (B) contains 60% to 70% by mass of a linear low-density polyethylene (b1), 10% by mass or more of an ethylene-vinyl acetate copolymer (b2) having a melt flow rate of 100 g/10 min or more, and 10% to 20% by mass of a maleic acid-modified polyolefin (b3).

    Abstract translation: 电缆包括导体，导体上的绝缘涂层和绝缘涂层上的外涂层。 绝缘被覆层由含有100质量份基础聚合物（A）和100〜250质量份无卤阻燃剂的组合物构成。 聚合物（A）含有70质量％〜99质量％的含有熔点为70℃以上的乙烯 - 乙酸乙烯酯共聚物和1质量％〜30质量％的乙烯 - 乙酸乙烯酯共聚物（a1） 的具有-55℃以下的玻璃化转变温度的酸改性聚烯烃树脂（a2）。 聚合物（A）含有25质量％至50质量％的由共聚物（a1）衍生的乙酸乙烯酯组分。 外涂层由含有100质量份基础聚合物（B）和150〜220质量份非卤素阻燃剂的组合物构成。 聚合物（B）含有60质量％〜70质量％的线性低密度聚乙烯（b1），10质量％以上的熔体流动速率为100g / 10的乙烯 - 乙酸乙烯酯共聚物（b2） min以上，10质量％〜20质量％的马来酸改性聚烯烃（b3）。

    Multilayer insulated wire and multilayer insulated cable
    9.
    发明授权
    Multilayer insulated wire and multilayer insulated cable 有权

    公开(公告)号：US10726969B2

    公开(公告)日：2020-07-28

    申请号：US15219089

    申请日：2016-07-25

    Applicant: Hitachi Metals, Ltd.

    Inventor： Makoto Iwasaki ,  Ryutaro Kikuchi ,  Tamotsu Kibe ,  Mitsuru Hashimoto

    IPC: H01B3/00 ,  H01B3/30 ,  H01B3/44 ,  H01B3/42 ,  H01B3/10 ,  H01B7/295 ,  H01B7/02

    Abstract: A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C. for 4 hours/mass of inner or outer insulation layer before immersion in xylene)×100

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