JP2011090920A5 - - Google Patents

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Publication number
JP2011090920A5
JP2011090920A5 JP2009244135A JP2009244135A JP2011090920A5 JP 2011090920 A5 JP2011090920 A5 JP 2011090920A5 JP 2009244135 A JP2009244135 A JP 2009244135A JP 2009244135 A JP2009244135 A JP 2009244135A JP 2011090920 A5 JP2011090920 A5 JP 2011090920A5
Authority
JP
Japan
Prior art keywords
foamed
electric wire
insulating layer
wire according
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2009244135A
Other languages
Japanese (ja)
Other versions
JP5552293B2 (en
JP2011090920A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2009244135A priority Critical patent/JP5552293B2/en
Priority claimed from JP2009244135A external-priority patent/JP5552293B2/en
Priority to PCT/JP2010/067846 priority patent/WO2011048973A1/en
Publication of JP2011090920A publication Critical patent/JP2011090920A/en
Publication of JP2011090920A5 publication Critical patent/JP2011090920A5/ja
Application granted granted Critical
Publication of JP5552293B2 publication Critical patent/JP5552293B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (6)

導体と、
前記導体を被覆する発泡絶縁層とを備える発泡電線であって、
前記発泡絶縁層が、
プロピレン系樹脂を含み、破断時における溶融張力が２０〜５５ｍＮで且つ引取速度が５０ｍ／分以上であるベース樹脂と、
化学発泡剤と、
シリカ粒子とを含む樹脂組成物を溶融混練することにより得られ、
前記化学発泡剤がアゾジカルボンアミドであり、
前記シリカ粒子が前記ベース樹脂１００質量部に対して０．０３〜１質量部の割合で配合されていること、
を特徴とする発泡電線。 Conductors,
A foamed electric wire comprising a foamed insulating layer covering the conductor,
The foam insulation layer is
A base resin containing a propylene-based resin, having a melt tension at break of 20 to 55 mN and a take-up speed of 50 m / min or more;
Chemical foaming agents,
Obtained by melt-kneading a resin composition containing silica particles,
The chemical blowing agent is azodicarbonamide;
The silica particles are blended at a ratio of 0.03 to 1 part by mass with respect to 100 parts by mass of the base resin,
Foamed wire characterized by 前記ベース樹脂の破断時における溶融張力が２０〜４８ｍＮである請求項１に記載の発泡電線。The foamed electric wire according to claim 1, wherein the base resin has a melt tension at break of 20 to 48 mN. 前記発泡絶縁層が、３０〜６０％の発泡度を有する請求項１又は２に記載の発泡電線。The foamed electric wire according to claim 1 or 2, wherein the foamed insulating layer has a foaming degree of 30 to 60%. 前記発泡絶縁層と前記導体との間に未発泡樹脂からなる内層が設けられている請求項１〜３のいずれか一項に記載の発泡電線。The foamed electric wire according to any one of claims 1 to 3, wherein an inner layer made of an unfoamed resin is provided between the foamed insulating layer and the conductor. 前記発泡絶縁層の外径が１．５ｍｍ未満である請求項１〜４のいずれか一項に記載の発泡電線。The foamed electric wire according to any one of claims 1 to 4, wherein an outer diameter of the foamed insulating layer is less than 1.5 mm. 請求項１〜５のいずれか一項に記載の発泡電線を有する伝送ケーブル。 The transmission cable which has a foamed electric wire as described in any one of Claims 1-5 .
JP2009244135A 2009-10-23 2009-10-23 Foamed electric wire and transmission cable having the same Expired - Fee Related JP5552293B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009244135A JP5552293B2 (en) 2009-10-23 2009-10-23 Foamed electric wire and transmission cable having the same
PCT/JP2010/067846 WO2011048973A1 (en) 2009-10-23 2010-10-12 Foamed electric wire and transmission cable comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009244135A JP5552293B2 (en) 2009-10-23 2009-10-23 Foamed electric wire and transmission cable having the same

Publications (3)

Publication Number Publication Date
JP2011090920A JP2011090920A (en) 2011-05-06
JP2011090920A5 true JP2011090920A5 (en) 2012-08-23
JP5552293B2 JP5552293B2 (en) 2014-07-16

Family

ID=43900200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009244135A Expired - Fee Related JP5552293B2 (en) 2009-10-23 2009-10-23 Foamed electric wire and transmission cable having the same

Country Status (2)

Country Link
JP (1) JP5552293B2 (en)
WO (1) WO2011048973A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5768784B2 (en) 2011-10-05 2015-08-26 株式会社デンソー Integrated valve
JP2013214499A (en) * 2012-03-07 2013-10-17 Hitachi Cable Ltd Differential transmission cable and manufacturing method therefor
JP6056041B1 (en) * 2015-08-20 2017-01-11 株式会社潤工社 Cable core and transmission cable
CN110024051A (en) * 2017-10-25 2019-07-16 住友电气工业株式会社 Biaxial cable and multicore cable
CN112289499B (en) * 2020-10-22 2022-04-15 安徽瑞之星电缆集团有限公司 Radio frequency signal transmission cable for outer space and manufacturing process thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961257A (en) * 1972-09-27 1974-06-13
JP2508128B2 (en) * 1987-09-09 1996-06-19 日立電線株式会社 Method for manufacturing foamed plastic insulated wire
JP2006286619A (en) * 2005-03-08 2006-10-19 Fujikura Ltd Small-diameter foamed coaxial cable
JP2007048622A (en) * 2005-08-10 2007-02-22 Fujikura Ltd Small diameter foamed coaxial cable
JP2007090787A (en) * 2005-09-30 2007-04-12 Fujikura Ltd Foaming method, foamed coaxial cable and manufacturing method of the foamed coaxial cable

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