公开(公告)号：US20160002450A1

公开(公告)日：2016-01-07

申请号：US14770399

申请日：2014-02-25

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hiroki CHIBA ,  Koichi MIZUNO ,  Tomoyuki SHIRAI

IPC: C08L23/12 ,  H01B3/44 ,  C08L23/08

CPC classification number: C08L23/12 ,  C08L23/08 ,  C08L23/10 ,  H01B3/441

Abstract: Solved is the following problem: a polyolefin resin including a film grade ethylene-α-olefin copolymer is excellent in economic efficiency, but has a narrow molecular weight distribution in consideration for strength and heat sealability, and therefore causes surface roughening to occur when applied to a covering material for an insulated electric wire or cable. Used is a polyolefin based resin composition in which, when the ratio (I10/I0.5 ) of the melt flow rate (MFR) (I10) measured at 190° C. and a load of 10 kg to the MFR (I0.5) measured at 190° C. and a load of 0.5 kg is defined as MFRR, MFRR≧43 is satisfied.

Abstract translation: 解决了以下问题：包含膜级乙烯-α-烯烃共聚物的聚烯烃树脂的经济效益优异，但鉴于强度和热封性而具有窄的分子量分布，因此当应用于 用于绝缘电线或电缆的覆盖材料。 使用的是聚烯烃类树脂组合物，其中当在190℃下测量的熔体流动速率（MFR）（I10）和10kg的载荷与MFR（I0.5）的比率（I10 / I0.5） ）和0.5kg的负荷被定义为MFRR，MFRR≥43。

公开(公告)号：US20220013252A1

公开(公告)日：2022-01-13

申请号：US17483955

申请日：2021-09-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Takanori YAMAZAKI ,  Arifumi MATSUMURA ,  Koichi MIZUNO ,  Masaki NISHIGUCHI

IPC: H01B7/18 ,  H01B3/22 ,  H01B3/28

Abstract: A composite cable includes a sheath surrounding an outer surface of a core at least including a plurality of thick electric wires each having a resin layer on an outer circumference of a conductor, and a plurality of thin electric wires each having a resin layer on an outer circumference of a conductor, in which the sheath includes a resin composition including base resin containing at least one type of ethylene rubber and styrene elastomer at 10 to 50 mass %.

公开(公告)号：US20170349737A1

公开(公告)日：2017-12-07

申请号：US15686194

申请日：2017-08-25

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hiroki CHIBA ,  Masaki NISHIGUCHI ,  Arifumi MATSUMURA ,  Koichi MIZUNO

IPC: C08L23/26 ,  C08J3/22 ,  C08K3/22 ,  C08J3/24 ,  C08K3/36

CPC classification number: C08L23/26 ,  C08J3/22 ,  C08J3/24 ,  C08J2423/12 ,  C08J2423/26 ,  C08K3/04 ,  C08K3/22 ,  C08K3/34 ,  C08K3/346 ,  C08K3/36 ,  C08K5/14 ,  C08K5/5425 ,  C08K2003/2224 ,  C08L23/10 ,  C08L23/16

Abstract: A silane crosslinkable rubber composition containing a silane crosslinkable rubber in which a silane coupling agent is grafted onto a base rubber containing 61 to 100 mass % of ethylene-α-olefin rubber having a diene content of 5 mass % or less, and with respect to 100 parts by mass of the base rubber, 0.3 to 400 parts by mass of inorganic filler, and 0.0001 to 0.5 parts by mass of silanol condensation catalyst; a silane crosslinked rubber molded body obtained by bringing the rubber composition into contact with water after molding; a silane crosslinked rubber molded article including the rubber molded body; and a method of producing a silane crosslinkable rubber composition and a silane crosslinked rubber molded body.

公开(公告)号：US20160009908A1

公开(公告)日：2016-01-14

申请号：US14770435

申请日：2014-02-25

Applicant: FURUKAWA ELECTRIC CO.,LTD.

Inventor： Hiroki CHIBA ,  Koichi MIZUNO ,  Tomoyuki SHIRAI

IPC: C08L23/06 ,  H01B3/44 ,  H01B13/14 ,  C08L23/12

CPC classification number: C08L23/06 ,  C08L23/0815 ,  C08L23/12 ,  C08L2203/202 ,  C08L2205/02 ,  H01B3/441 ,  H01B13/14 ,  C08L23/14

Abstract: Solved is the following problem: a PE based resin including a film grade ethylene-α-olefin copolymer is excellent in economic efficiency, but has a narrow molecular weight distribution in consideration for strength and heat sealability, and therefore causes surface roughening to occur when applied to a covering material for an insulated electric wire or cable. Applied is a polyolefin based resin composition including at least one polyethylene (PE) based resin, in which, when a ratio (I10/I0.5) of an MFR (I10) measured at 190° C. and a load of 10 kg to an MFR (I0.5) measured at 190° C. and a load of 0.5 kg is defined as MFRR, a difference between the MFRR of the polyolefin based resin composition including at least one PE based resin and the MFRR of the PE based resin is 5 or more.

Abstract translation: 解决了以下问题：包含膜级乙烯-α-烯烃共聚物的PE基树脂的经济效益优异，但鉴于强度和热封性而具有窄的分子量分布，因此当应用时会发生表面粗糙化 用于绝缘电线或电缆的覆盖材料。 应用是基于聚烯烃的树脂组合物，其包含至少一种聚乙烯（PE）基树脂，其中当在190℃下测量的MFR（I10）与10kg负载的比（I10 / I0.5）相对于 将190℃下测定的MFR（I0.5）和0.5kg的负荷定义为MFRR，包含至少一种PE系树脂的聚烯烃系树脂组合物的MFRR与PE系树脂的MFRR之差 是5以上。

公开(公告)号：US20150357081A1

公开(公告)日：2015-12-10

申请号：US14760443

申请日：2014-01-09

Applicant: FURUKAWA ELECTRIC CO.,LTD.

Inventor： Koichi MIZUNO ,  Hiroki CHIBA ,  Tomoyuki SHIRAI

IPC: H01B7/02 ,  C08L23/12 ,  H01B3/44 ,  C08L23/06

Abstract: Solved is the following problem in terms of outer appearance: a covered electric wire obtained by extrusion of a low cost linear polyethylene resin (LLDPE) has irregularities formed on the surface thereof because processing suitability of LLDPE is poor. As a solution to the problem, a resin composition including 50 to 97 parts by weight of LLDPE and 3 to 50 parts by weight of a polypropylene (PP) based resin can be used to thereby produce a covered electric wire excellent in surface smoothness at a high speed and a low cost.

Abstract translation: 解决的外观方面存在以下问题：通过低成本线性聚乙烯树脂（LLDPE）的挤出获得的被覆电线由于LLDPE的加工适应性差而在其表面上形成凹凸。 作为该问题的解决方案，可以使用包含50至97重量份的LLDPE和3至50重量份的聚丙烯（PP）基树脂的树脂组合物，从而制得在 高速和低成本。