WO2010125944A1 - 極細同軸ケーブル及びレーザ光シールド用樹脂組成物 - Google Patents
極細同軸ケーブル及びレーザ光シールド用樹脂組成物 Download PDFInfo
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- WO2010125944A1 WO2010125944A1 PCT/JP2010/056990 JP2010056990W WO2010125944A1 WO 2010125944 A1 WO2010125944 A1 WO 2010125944A1 JP 2010056990 W JP2010056990 W JP 2010056990W WO 2010125944 A1 WO2010125944 A1 WO 2010125944A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1895—Particular features or applications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2251—Oxides; Hydroxides of metals of chromium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1834—Construction of the insulation between the conductors
Definitions
- the present invention relates to a fine coaxial cable and a resin composition for laser light shielding.
- a micro coaxial cable is used as an internal wiring material for transmitting signals to a mobile phone.
- the micro coaxial cable includes a central conductor that can transmit a signal, an insulator made of a resin composition that covers the periphery of the central conductor, an outer conductor that serves as a shield that covers the periphery of the insulator, and a jacket that covers the periphery of the outer conductor.
- the center conductor 3 In order to connect the micro coaxial cable and the connector, as shown in FIG. 2, it is necessary to lead out the center conductor 3, the insulator 105, and the outer conductor 8 to a predetermined length.
- extraction is performed by a mechanical method of cutting using a rotating blade or a chemical method of extracting using an etching material. In this method, it is difficult to extract the center conductor 3.
- the center conductor 3, the insulator 105, and the outer conductor 8 are extracted using laser light.
- the laser beam may enter the inside through the gap between the strands of the outer conductor 8 as shown in FIG.
- the insulator 105 is transparent, the laser light passes through the insulator 105 and damages the central conductor 3, and when the insulator 105 is a material that easily absorbs laser light, the insulator 105 Burn and damage.
- the fine coaxial cable 101 is irradiated with the laser light, as shown in FIG. 4, several external conductors 8 may be cut and a part of the insulator 105 may be exposed. Since the laser beam is irradiated not only once but on the outer conductor 8 in several times, if the laser beam is irradiated again after a part of the insulator 105 is damaged, the center conductor 3 is damaged. To do.
- Patent Document 1 describes that carbon black is added to a resin composition constituting an insulator.
- carbon black is added to a resin composition constituting an insulator.
- there remains room for improvement such as poor voltage resistance.
- An object of the present invention is to provide a micro coaxial cable that does not damage an insulator or a central conductor when the end of the micro coaxial cable is processed using laser light.
- a first aspect of the present invention includes a center conductor capable of transmitting a signal, an insulator covering the periphery of the center conductor, an outer conductor serving as a shield covering the periphery of the insulator, and a jacket covering the periphery of the outer conductor.
- the insulator is formed of a resin composition containing an insulating resin, carbon black and a fired pigment, and an ultrafine coaxial cable containing titanium (Ti), antimony (Sb), and chromium (Cr) as the fired pigment.
- Ti titanium
- Sb antimony
- Cr chromium
- the second aspect of the present invention is a resin composition for laser light shielding containing an insulating resin, carbon black and a fired pigment, and containing titanium (Ti), antimony (Sb), and chromium (Cr) as the fired pigment.
- a micro coaxial cable that does not damage the insulator and the central conductor when the end of the micro coaxial cable is processed using laser light.
- FIG. 1 shows a cross-sectional view of a micro coaxial cable.
- FIG. 2 is a perspective view showing a state in which the central conductor is extracted from the micro coaxial cable.
- FIG. 3 is a conceptual diagram (part 1) for explaining the cause of damage to the central conductor during laser processing.
- FIG. 4 is a conceptual diagram (part 2) for explaining the cause of damage to the central conductor during laser processing.
- FIG. 5 shows the schematic (the 1) of the manufacturing process of a micro coaxial cable.
- FIG. 6 shows the schematic (the 2) of the manufacturing process of a micro coaxial cable.
- FIG. 7 shows the schematic (the 3) of the manufacturing process of a micro coaxial cable.
- FIG. 1 shows a cross-sectional view of a micro coaxial cable according to an embodiment of the present invention.
- the micro coaxial cable 1 includes a center conductor 3 capable of transmitting a signal, an insulator 5 covering the periphery of the center conductor 3, an outer conductor 8 serving as a shield covering the periphery of the insulator 5, and a periphery of the outer conductor 8.
- the insulator 5 is formed of a resin composition including an insulating resin, carbon black, and a fired pigment, and includes titanium (Ti), antimony (Sb), and chromium (Cr) as the fired pigment. .
- the center conductor 3 is preferably a conductor equivalent to AWG (American Wire Gauge) 46-40.
- the insulating resin is not particularly limited as long as it does not transmit laser light and has insulating characteristics.
- the resin is a fluororesin, for example, a PFA resin made of a copolymer of tetrafluoroethylene (TFE) and perfluoroalkoxyethylene. Can be used.
- the addition amount of carbon black and calcined pigment to the insulating resin is preferably 0.8 to 1.2 parts by mass of carbon black and 4 to 12 parts by mass of calcined pigment with respect to 100 parts by mass of the insulating resin. . This is because the insulator 5 and the central conductor 3 are not damaged when the end of the micro coaxial cable 1 is processed using laser light. Further, from the viewpoint of improving the withstand voltage between the center conductor 3 and the outer conductor 8, 0.8 to 1.2 parts by mass of carbon black and 4 to 6 parts of calcined pigment with respect to 100 parts by mass of the insulating resin. It is preferable to add part by mass.
- the calcined pigment preferably contains titanium (Ti), antimony (Sb), and chromium (Cr). Specifically, based on the total mass of the calcined pigment, 70 to 80% by mass of TiO 2 and Sb 2 It is preferable to contain 10 to 20% by mass of O 5 and 4 to 10% by mass of Cr 2 O 3 .
- the film thickness of the insulator 5 is a film thickness that is normally performed on conductors of AWGs 46 to 40. It is preferable that the outer conductor 8 is twisted around the outer periphery of the insulator 5 by lateral winding.
- the jacket is not particularly limited as long as it has insulating properties, but a fluororesin, for example, a PFA resin made of a copolymer of tetrafluoroethylene (TFE) and perfluoroalkoxyethylene can be used.
- a fluororesin for example, a PFA resin made of a copolymer of tetrafluoroethylene (TFE) and perfluoroalkoxyethylene can be used.
- the extrusion molding machine 11 has an extrusion molding machine main body 11a, a hopper 18 provided on the upper part of the extrusion molding machine main body 11a, and a die 13 provided on a side portion of the extrusion molding machine main body 11a. Winding machines 15a and 15b for winding the central conductor 3 are disposed with the molding machine body 11a interposed therebetween.
- the die 13 is configured such that the central conductor 3 passes through the inside of the die 13.
- step (D) In the same manner as in step (a), a jacket is extrusion coated on the outer periphery of the cable 1B using the apparatus shown in FIG. Thus, the micro coaxial cable 1 of FIG. 1 is manufactured.
- the resin composition used for the insulator of the micro coaxial cable according to the embodiment can be used as a laser light shielding resin composition for various applications as follows.
- the micro coaxial cable according to the invention has a concentric structure composed of two layers of conductors, a central conductor and an outer conductor, but in addition to the coaxial cable, a metal flat plate is composed of two or more layers ( For example, when a first layer of metal is cut with a laser in an FPC (flexible printed circuit), the underlying metal is not damaged by placing a resin composition for laser light shielding on the underlayer.
- FPC flexible printed circuit
- Resin composition 1 in which 1 part by mass of carbon black and 10 parts by mass of calcined pigment are added to 100 parts by mass of PFA resin comprising a copolymer of tetrafluoroethylene (TFE) and perfluoroalkoxyethylene as a base material.
- PFA resin comprising a copolymer of tetrafluoroethylene (TFE) and perfluoroalkoxyethylene as a base material.
- TFE tetrafluoroethylene
- Resin compositions 2 to 4 were prepared in the same manner as in resin composition 1, with the composition ratio changed as shown in Table 2.
- an insulator made of the resin composition 1, an outer conductor, and a jacket are sequentially provided on the outer periphery of the central conductor corresponding to AWG 46, and the micro coaxial cable according to the first embodiment is provided.
- the micro coaxial cables according to Example 2 and Comparative Examples 1 and 2 were the same as Example 1 except that resin compositions 2, 3, and 4 were used instead of the resin composition 1 as the insulator. Produced.
- Damage to center conductor (%) (Number of damaged / 40) ⁇ 100 Insulator appearance: The conductor center and the insulator were observed for damage using a 30 ⁇ stereo microscope. Then, a good one (no damage) was evaluated as “ ⁇ ”, and a bad one (damaged) was evaluated as “x”.
- a withstand voltage (insulation withstand voltage) test between the center conductor and the outer conductor was performed.
- 40 central conductors and external conductors were soldered together, and the voltage was increased from 100 V until the micro coaxial cable was defective. The maximum voltage was taken as the withstand voltage.
- a micro coaxial cable that does not damage the insulator and the central conductor when the end of the micro coaxial cable is processed using laser light.
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- Insulated Conductors (AREA)
Abstract
Description
図1は本発明の実施の形態にかかる極細同軸ケーブルの断面図を示す。極細同軸ケーブル1は、信号を伝送可能とする中心導体3と、中心導体3の周囲を覆う絶縁体5と、絶縁体5の周囲を覆うシールドとしての外部導体8と、外部導体8の周囲を覆うジャケット9とを備え、絶縁体5は、絶縁性樹脂、カーボンブラック及び焼成顔料を含む樹脂組成物により形成され、焼成顔料として、チタン(Ti)、アンチモン(Sb)、クロム(Cr)を含む。
(イ)図5に示すような押出成形機11を用意する。押出成形機11は、押出成形機本体11aと、押出成形機本体11aの上部に設けられたホッパー18と、押出成形機本体11aの側部に設けられたダイス13とを有し、さらに、押出成形機本体11aを挟んで配置された、中心導体3を巻き取るための巻き取り機15a,15bを有する。ダイス13は、ダイス13の内部を中心導体3が通過するように構成されている。
上記のように、本発明は実施形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなろう。
基材となるテトラフルオロエチレン(TFE)とパーフルオロアルコキシエチレンとの共重合体からなるPFA樹脂100質量部に対して、カーボンブラック1質量部、焼成顔料10質量部を添加した樹脂組成物1を調製した。また組成比を表2に示す通りに変更して、樹脂組成物1と同様にして樹脂組成物2~4を調製した。
AWG46相当の中心導体の外周に、実施形態に係る極細同軸ケーブルの製造方法に準じて、順次、樹脂組成物1からなる絶縁体、外部導体、ジャケットを設けて、実施例1に係る極細同軸ケーブルを作製した。また絶縁体として、樹脂組成物1に代えて樹脂組成物2、3、4を用いたことを除き、実施例1と同様にして,実施例2、比較例1,2に係る極細同軸ケーブルを作製した。
実施例1,2、比較例1,2に係る極細同軸ケーブルについて、YAGレーザ及びSHGレーザをそれぞれ用いてジャケット、外部導体を切断した際の、中心導体損傷、絶縁体外観、耐電圧を以下の評価基準に従って観察し評価した。得られた結果をまとめて表1に示す。
中心導体損傷:CO2レーザにより絶縁体を取り除いて中心導体を剥き出しにし、そして、40本の中心導体のうちどれだけの本数が損傷を受けているかを数え、次式にしたがい、損傷を受けた本数をパーセント表示した。
絶縁体外観:30倍実体顕微鏡を用いて導体中心及び絶縁体の損傷を観察した。そして、良好だったもの(損傷がなかったもの)を「○」、不良だったもの(損傷があったもの)を「×」として評価した。
表1より、PFA樹脂に焼成顔料(黄色)を加えた比較例2は、中心導体に損傷が生じた。特許文献1の発明に相当するPFA樹脂にカーボンブラックを混ぜた比較例1は中心導体・絶縁体に損傷はなかったが、耐電圧の値が約500Vであり、耐電圧性がやや劣る結果となった。
Claims (8)
- 信号を伝送可能とする中心導体と、
前記中心導体の周囲を覆う絶縁体と、
前記絶縁体の周囲を覆うシールドとしての外部導体と、
前記外部導体の周囲を覆うジャケットとを備え、
前記絶縁体は、絶縁性樹脂、カーボンブラック及び焼成顔料を含む樹脂組成物により形成され、前記焼成顔料として、チタン(Ti)、アンチモン(Sb)、クロム(Cr)を含むことを特徴とする極細同軸ケーブル。 - 前記絶縁体は、前記絶縁性樹脂100質量部に対して、前記カーボンブラックを0.8~1.2質量部、前記焼成顔料4~6質量部含むことを特徴とする請求項1記載の極細同軸ケーブル。
- 前記焼成顔料として、前記焼成顔料の全質量を基準として、TiO2を70~80質量%、Sb2O5を10~20質量%、Cr2O3を4~10質量%含むことを特徴とする請求項1記載の極細同軸ケーブル。
- 前記絶縁性樹脂は、フッ素樹脂であることを特徴とする請求項1記載の極細同軸ケーブル。
- 絶縁性樹脂、カーボンブラック及び焼成顔料を含み、
前記焼成顔料として、チタン(Ti)、アンチモン(Sb)、クロム(Cr)を含むことを特徴とするレーザ光シールド用樹脂組成物。 - 前記絶縁性樹脂100質量部に対して、前記カーボンブラックを0.8~1.2質量部、前記焼成顔料4~6質量部含むことを特徴とする請求項5記載のレーザ光シールド用樹脂組成物。
- 前記焼成顔料として、前記焼成顔料の全質量を基準として、TiO2を70~80質量%、Sb2O5を10~20質量%、Cr2O3を4~10質量%含むことを特徴とする請求項5記載のレーザ光シールド用樹脂組成物。
- 前記絶縁性樹脂は、フッ素樹脂であることを特徴とする請求項5記載のレーザ光シールド用樹脂組成物。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10769643.7A EP2426675A4 (en) | 2009-04-28 | 2010-04-20 | MICROCOAXIAL CABLES AND RESIN COMPOSITION FOR SHIELDING LASER LIGHT |
CN2010800191441A CN102414762A (zh) | 2009-04-28 | 2010-04-20 | 极细同轴电缆以及激光防护用树脂组合物 |
US13/281,926 US8530741B2 (en) | 2009-04-28 | 2011-10-26 | Micro coaxial cable and laser beam shielding resin composition |
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JP2009109747A JP4619444B2 (ja) | 2009-04-28 | 2009-04-28 | 極細同軸ケーブル及びレーザ光シールド用樹脂組成物 |
JP2009-109747 | 2009-04-28 |
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US13/281,926 Continuation US8530741B2 (en) | 2009-04-28 | 2011-10-26 | Micro coaxial cable and laser beam shielding resin composition |
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US (1) | US8530741B2 (ja) |
EP (1) | EP2426675A4 (ja) |
JP (1) | JP4619444B2 (ja) |
KR (1) | KR20120024638A (ja) |
CN (1) | CN102414762A (ja) |
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Cited By (1)
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JP2012252815A (ja) * | 2011-06-01 | 2012-12-20 | Nissei Electric Co Ltd | 同軸ケーブル |
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US8850702B2 (en) * | 2009-05-26 | 2014-10-07 | Cardiac Pacemakers, Inc. | Cable consolidation with a laser |
ES2491097T3 (es) * | 2010-04-23 | 2014-09-05 | Prysmian S.P.A. | Blindaje de cables de alta tensión |
JP5974992B2 (ja) * | 2013-07-10 | 2016-08-23 | 日立金属株式会社 | 高周波信号伝送用同軸ケーブル |
KR101633313B1 (ko) | 2014-09-11 | 2016-06-24 | 대우조선해양 주식회사 | 선박의 케이블 설치 방법 |
WO2018189705A1 (en) | 2017-04-13 | 2018-10-18 | Cadila Healthcare Limited | Novel peptide based pcsk9 vaccine |
JP6756692B2 (ja) * | 2017-11-07 | 2020-09-16 | 日立金属株式会社 | 絶縁電線 |
CN109102960A (zh) * | 2018-07-26 | 2018-12-28 | 浙江兆龙互连科技股份有限公司 | 一种耐弯曲的极细同轴信号传输电缆及生产方法 |
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2009
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2010
- 2010-04-20 EP EP10769643.7A patent/EP2426675A4/en not_active Withdrawn
- 2010-04-20 KR KR1020117027922A patent/KR20120024638A/ko not_active Application Discontinuation
- 2010-04-20 CN CN2010800191441A patent/CN102414762A/zh active Pending
- 2010-04-20 WO PCT/JP2010/056990 patent/WO2010125944A1/ja active Application Filing
- 2010-04-27 TW TW099113328A patent/TW201110151A/zh unknown
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Also Published As
Publication number | Publication date |
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CN102414762A (zh) | 2012-04-11 |
EP2426675A1 (en) | 2012-03-07 |
US20120037394A1 (en) | 2012-02-16 |
US8530741B2 (en) | 2013-09-10 |
EP2426675A4 (en) | 2013-06-26 |
KR20120024638A (ko) | 2012-03-14 |
JP4619444B2 (ja) | 2011-01-26 |
TW201110151A (en) | 2011-03-16 |
JP2010257899A (ja) | 2010-11-11 |
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