公开(公告)号：US20190096544A1

公开(公告)日：2019-03-28

申请号：US16197899

申请日：2018-11-21

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Ryutaro Kikuchi ,  Mitsuru Hashimoto ,  Takuya Oriuchi

IPC: H01B7/295 ,  H01B3/10 ,  H01B7/02 ,  H01B3/44

Abstract: A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or a multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×106 Pa or more in a dynamic viscoelasticity test.

公开(公告)号：US20160163417A1

公开(公告)日：2016-06-09

申请号：US14931456

申请日：2015-11-03

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Ryutaro KIKUCHI ,  Mitsuru HASHIMOTO

IPC: H01B7/02 ,  C08L35/02 ,  C08L23/26 ,  C08L23/06

CPC classification number: C08L23/26 ,  C08L23/06 ,  C08L23/0853 ,  C08L23/0869 ,  C08L51/06 ,  C08L2203/202 ,  C08L2205/035 ,  C08L2312/00 ,  H01B3/308 ,  H01B3/441 ,  H01B3/447 ,  H01B3/448

Abstract: A crosslinkable halogen-free resin composition includes a polymer blend, and a metal hydroxide mixed in an amount of 120 to 200 parts by mass per 100 parts by mass of the polymer blend. The polymer blend includes a high-density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of a maleic anhydride modified ethylene-α-olefin copolymer and 10 to 30 parts by mass of an ethylene-vinyl acetate copolymer.

Abstract translation: 可交联的无卤素树脂组合物包括聚合物共混物和相对于每100质量份聚合物共混物为120〜200质量份的金属氢氧化物。 聚合物共混物包括高密度聚乙烯，30〜50质量份乙烯 - 丙烯酸酯 - 马来酸酐三元共聚物，5〜20质量份马来酸酐改性乙烯-α-烯烃共聚物和10〜30份 质量的乙烯 - 乙酸乙烯酯共聚物。

公开(公告)号：US20160163414A1

公开(公告)日：2016-06-09

申请号：US14931466

申请日：2015-11-03

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Ryutaro KIKUCHI ,  Mitsuru HASHIMOTO

IPC: H01B3/44 ,  H01B7/18 ,  H01B7/295 ,  H01B7/02

CPC classification number: H01B3/447 ,  H01B7/295

Abstract: A crosslinkable halogen-free resin composition includes a polymer blend, and a metal hydroxide mixed in an amount of 120 to 200 parts by mass per 100 parts by mass of the polymer blend. The polymer blend includes a maleic anhydride-modified high-density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of a maleic anhydride modified ethylene-α-olefin copolymer and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer.

Abstract translation: 可交联的无卤素树脂组合物包括聚合物共混物和相对于每100质量份聚合物共混物为120〜200质量份的金属氢氧化物。 聚合物共混物包括马来酸酐改性的高密度聚乙烯，30〜50质量份的乙烯 - 丙烯酸酯 - 马来酸酐三元共聚物，5〜20质量份马来酸酐改性的乙烯-α-烯烃共聚物和10 至30质量份的乙烯 - 丙烯酸酯共聚物。

公开(公告)号：US20170032867A1

公开(公告)日：2017-02-02

申请号：US15219089

申请日：2016-07-25

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Ryutaro KIKUCHI ,  Tamotsu KIBE ,  Mitsuru HASHIMOTO

IPC: H01B3/30 ,  H01B3/42 ,  H01B7/02 ,  H01B7/18 ,  H01B7/295 ,  H01B3/44 ,  H01B3/10

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

Abstract translation: 多层绝缘线包括导体，内绝缘层和外绝缘层。 下面定义的内绝缘层的凝胶分数不小于80％。 下面定义的外绝缘层的凝胶分数小于内绝缘层的凝胶分数，不小于75％。 在200mm / min的拉伸速度下进行的拉伸试验中，包含内绝缘层和外绝缘层的绝缘覆盖层交联，拉伸弹性模量为500MPa以上。 凝胶分数（％）=（在110℃下二甲苯浸渍24小时后的内外层绝缘层的质量，然后在20℃，大气压下放置3小时，并在80℃真空干燥。 浸入二甲苯中4小时/质量的内层或外层绝缘层）×100

公开(公告)号：US20160365172A1

公开(公告)日：2016-12-15

申请号：US15170727

申请日：2016-06-01

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Ryutaro KIKUCHI ,  Mitsuru HASHIMOTO ,  Takuya ORIUCHI

IPC: H01B7/295 ,  H01B3/44 ,  H01B7/02 ,  H01B3/10

CPC classification number: H01B7/295 ,  H01B3/10 ,  H01B3/441 ,  H01B7/0216 ,  H01B7/0225

Abstract: A non-halogen flame-retardant insulated electric wire and a non-halogen flame-retardant cable that have excellent abrasion resistance, terminal processability, and handling ease in a high-temperature environment are provided. A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×106 Pa or more in a dynamic viscoelasticity test.

Abstract translation: 提供了在高温环境下具有优异的耐磨性，终端加工性和处理容易性的非卤素阻燃绝缘电线和非卤素阻燃电缆。 非卤素阻燃绝缘电线包括在导体的外周上的导体和交联的单层或多层绝缘层。 在以200mm / min的位移速率进行的拉伸试验中，绝缘层的拉伸弹性模量为500MPa以上，断裂伸长率为120％以下，并且在125℃下的储能弹性模量为 3×106Pa以上的动态粘弹性试验。

公开(公告)号：US20140370286A1

公开(公告)日：2014-12-18

申请号：US14303159

申请日：2014-06-12

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Mitsuru HASHIMOTO

IPC: H01B3/02 ,  H01B7/295 ,  H01B3/44

CPC classification number: H01B3/02 ,  H01B3/441 ,  H01B3/448 ,  H01B7/295 ,  Y10T428/2947 ,  Y10T428/2958

Abstract: A halogen-free flame-retardant wire includes a conductor, and a single insulation layer or a plurality of insulation layers formed by covering an outer periphery of the conductor with a halogen-free flame-retardant resin composition. The single insulation layer or an outermost insulation layer of the plurality of insulation layers includes a halogen-free flame-retardant resin composition including a base polymer including an ethylene-vinyl acetate copolymer (EVA) of not less than 25 mass % in a vinyl acetate content (VA content) or a polyethylene (PE) with a melting peak at 115 to 140° C. measured by a differential scanning calorimetry (DSC), and a metal hydroxide mixed in an amount of 150 to 300 parts by mass per 100 parts by mass of the base polymer. A mass change rate of the single insulation layer or the outermost insulation layer after 24-hour immersion in xylene at 110° C. is not more than 420%.

Abstract translation: 无卤阻燃线包括导体和单个绝缘层或通过用无卤阻燃树脂组合物覆盖导体的外周而形成的多个绝缘层。 多层绝缘层中的单绝缘层或最外绝缘层包括无卤阻燃树脂组合物，其包含在乙酸乙烯酯中包含不低于25质量％的乙烯 - 乙酸乙烯酯共聚物（EVA）的基础聚合物 含量（VA含量）或熔点在115〜140℃的聚乙烯（PE），通过差示扫描量热法（DSC）测定，金属氢氧化物的混合量为150〜300质量份/ 100份 的基础聚合物。 在110℃下二甲苯浸渍24小时后，单层绝缘层或最外层绝缘层的质量变化率不超过420％。

公开(公告)号：US20140141245A1

公开(公告)日：2014-05-22

申请号：US14084364

申请日：2013-11-19

Applicant: Hitachi Metals, Ltd.

Inventor： Makoto IWASAKI ,  Hitoshi Kimura

IPC: H01B3/44

CPC classification number: H01B3/446 ,  C08K3/016 ,  C08K3/22 ,  C08L19/00 ,  C08L23/0853 ,  H01B3/441 ,  H01B3/448 ,  H01B3/46 ,  Y10T428/2962

Abstract: A halogen-free crosslinked resin composition includes a base polymer including as a main component (a) an ethylene vinyl acetate copolymer and (b) an acid modified polyolefin resin having a differential scanning calorimetry glass transition temperature Tg of not higher than −55 degrees Celsius in a mass ratio (a):(b) of 70:30 to 100:0, the base polymer including 50 to 70% by mass of vinyl acetate, 0.5 to 10 parts by mass of a silicone rubber with respect to 100 parts by mass of the base polymer, and 100 to 250 parts by mass of a metal hydroxide with respect to 100 parts by mass of the base polymer.

Abstract translation: 无卤交联树脂组合物包括基本聚合物，其包括作为主要组分（a）乙烯乙酸乙烯酯共聚物和（b）具有不高于-55摄氏度的差示扫描量热法玻璃化转变温度Tg的酸改性聚烯烃树脂 以质量比（a）：（b）为70:30〜100:0的比例含有50〜70质量％的乙酸乙烯酯，0.5〜10质量份的硅橡胶相对于100份 基质聚合物的质量，相对于100质量份的基础聚合物为100〜250质量份的金属氢氧化物。