JPH04184814A - Rubber plastic insulation power cable - Google Patents
Rubber plastic insulation power cableInfo
- Publication number
- JPH04184814A JPH04184814A JP31111890A JP31111890A JPH04184814A JP H04184814 A JPH04184814 A JP H04184814A JP 31111890 A JP31111890 A JP 31111890A JP 31111890 A JP31111890 A JP 31111890A JP H04184814 A JPH04184814 A JP H04184814A
- Authority
- JP
- Japan
- Prior art keywords
- cross
- layer
- power cable
- polyolefin resin
- semiconductor layer
- 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.)
- Pending
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 8
- 239000004033 plastic Substances 0.000 title claims abstract description 8
- 229920001971 elastomer Polymers 0.000 title claims description 7
- 238000009413 insulation Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000011342 resin composition Substances 0.000 claims abstract description 7
- 239000002656 Distearyl thiodipropionate Substances 0.000 claims abstract description 5
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000019305 distearyl thiodipropionate Nutrition 0.000 claims abstract description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 18
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 4
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 4
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004132 cross linking Methods 0.000 abstract description 6
- 239000004065 semiconductor Substances 0.000 abstract description 5
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229920000098 polyolefin Polymers 0.000 abstract description 2
- 239000003431 cross linking reagent Substances 0.000 description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- -1 Ketschen black Chemical compound 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- QEMOCCHONHPVPW-UHFFFAOYSA-N 1-(2-tert-butylperoxypropan-2-yl)-2-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC=C1C(C)(C)OOC(C)(C)C QEMOCCHONHPVPW-UHFFFAOYSA-N 0.000 description 1
- CIHBBMNIHHXKLW-UHFFFAOYSA-N 1-(2-tert-butylperoxypropan-2-yl)-3-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC(C(C)(C)OOC(C)(C)C)=C1 CIHBBMNIHHXKLW-UHFFFAOYSA-N 0.000 description 1
- KUNNUNBSGQSGDY-UHFFFAOYSA-N 2-butyl-6-methylphenol Chemical compound CCCCC1=CC=CC(C)=C1O KUNNUNBSGQSGDY-UHFFFAOYSA-N 0.000 description 1
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- FJECPJFEMCZBOY-UHFFFAOYSA-N ethene;2-methylidenebutanoic acid Chemical compound C=C.CCC(=C)C(O)=O FJECPJFEMCZBOY-UHFFFAOYSA-N 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ゴム・プラスチック絶縁電力ケーブルに関す
るものであり、ざらに詳しくは、内部半導電層、絶縁体
層、外部半導電層を形成するポリオレフィン系樹脂組成
物の架橋体に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rubber/plastic insulated power cable. The present invention relates to a crosslinked product of a polyolefin resin composition.
（従来技術及び発明が解決しようとする課題）従来、ゴ
ム・プラスチック絶縁電力ケーブルのケーブルコアは、
導体上に内部半導電層、絶縁体層、外部半導電層の３層
を有する構造を取っている。そして、絶縁体層は、ポリ
オレフィン系樹脂に架橋剤と老化防止剤及び必要に応じ
て種々の添加剤を配合した組成物の架橋体、また内部、
外部半導電層は、ポリオレフィン系樹脂に導電性カーボ
ン、架橋剤、老化防止剤および必要に応じて種々の添加
剤を配合した組成物の架橋体でそれぞれ形成されている
。(Prior art and problem to be solved by the invention) Conventionally, the cable core of a rubber/plastic insulated power cable was
The structure has three layers on the conductor: an inner semiconducting layer, an insulator layer, and an outer semiconducting layer. The insulating layer is made of a crosslinked composition of a polyolefin resin mixed with a crosslinking agent, an anti-aging agent, and various additives as necessary, and also contains internal,
The outer semiconductive layer is each formed of a crosslinked composition of a polyolefin resin mixed with conductive carbon, a crosslinking agent, an antiaging agent, and various additives as necessary.
上記老化防止剤としては、従来４，４′−チオビス（３
−メチル−６−ｔ−ブチルフェノール）が使用されてい
る。しかし、この老化防止剤の必要量を組成物中に添加
してペレット化して保存していると老化防止剤がペレッ
ト表面にブリードアウトして容器を汚すうえ、このペレ
ットを使用して形成した上記各層の耐熱性能が低下する
という問題がある。さらに、この老化防止剤は架橋阻害
性が大きい等の問題もある。As the above-mentioned anti-aging agent, conventionally 4,4'-thiobis(3
-methyl-6-tert-butylphenol) is used. However, if the necessary amount of this anti-aging agent is added to the composition and stored in pellet form, the anti-aging agent will bleed out onto the surface of the pellets, staining the container, and if the pellets are used to form the There is a problem that the heat resistance performance of each layer deteriorates. Furthermore, this anti-aging agent has problems such as a high crosslinking inhibiting property.
一方、老化防止剤のジラウリルチオジブロピオネートや
ジステアリルチオジブロピオネートは、ラジカルトラッ
プ能が弱いために、押出成形時に架橋剤が僅かに分解し
て生じるラジカルをトラップ出来ず、これらの老化防止
剤を使用すると「焼け」が生じやすいという問題がある
。絶縁体層や半導電層に「焼け」が生じると電カケープ
ルの特性を低下させ、電カケープルとしての信頼性を低
下させてしまう。On the other hand, the anti-aging agents dilauryl thiodipropionate and distearyl thiodipropionate have weak radical trapping ability, so they cannot trap the radicals generated when the crosslinking agent slightly decomposes during extrusion molding. There is a problem with the use of anti-aging agents in that they tend to cause burns. When "burning" occurs in the insulating layer or the semiconducting layer, the characteristics of the power cable deteriorate and the reliability of the power cable is reduced.
（課題を解決するための手段）
発明者らは種々検討を加えた結果、電カケープルの絶縁
体層および半導電層の架橋ポリオレフィン系樹脂組成物
の老化防止剤として、４．４’ −チオビス（３−メチ
ル−６−ｔ−ブチルフェノール）とジラウリルチオジブ
ロピオネートまたはジステアリルチオジブロピオネート
の混合物を使用することにより、各々を単独に使用した
時の種々の問題点を解決し、ケーブルの絶縁材、半導電
材の老化防止剤として優れた性能を有することを見い出
し本発明に到達した。(Means for Solving the Problems) As a result of various studies, the inventors found that 4,4'-thiobis( By using a mixture of (3-methyl-6-t-butylphenol) and dilaurylthiodipropionate or distearylthiodipropionate, various problems when using each individually are solved, The inventors have discovered that it has excellent performance as an insulating material for cables and as an anti-aging agent for semiconducting materials, and have arrived at the present invention.
すなわち、本発明のゴム・プラスチック絶縁電力ケーブ
ルは、導体上に内部半導電層、絶縁体層、必要に応じて
外部半導電層を設けてなるゴム・プラスチック絶縁電力
ケーブルにおいて、前記導体上の各層のうち少なくとも
一の層が、４．４′−チオビス（３−メチル−６−ｔ−
ブチルフェノール）とジラウリルチオジブロピオネート
またはジステアリルチオジブロピオネートとの混合物を
老化防止剤として含有するポリオレフィン系樹脂組成物
の架橋体で形成されてなることを特徴とする。That is, the rubber/plastic insulated power cable of the present invention is a rubber/plastic insulated power cable in which an internal semiconducting layer, an insulating layer, and an external semiconducting layer are provided on a conductor, each layer on the conductor. At least one layer of the 4,4'-thiobis(3-methyl-6-t-
It is characterized by being formed from a crosslinked product of a polyolefin resin composition containing a mixture of (butylphenol) and dilaurylthiodipropionate or distearylthiodipropionate as an antiaging agent.
本発明におけるポリオレフィン系樹脂組成物はポリオレ
フィン系樹脂に本発明の老化防止剤の他に架橋剤と必要
に応じて、滑剤、充填剤を含むものである。さらに、本
発明における内部、外部半導電層として使用する場合の
架橋ポリオレフィン系樹脂組成物はポリオレフィン系樹
脂に対し２０〜１００重量％の導電性カーボンを配合す
る。導電性カーボンとしては導電性付与剤として通常用
いられるケッチエンブラック、アセチレンブラック、フ
ァーネスブラック等が使用される。The polyolefin resin composition of the present invention contains a polyolefin resin, a crosslinking agent, and, if necessary, a lubricant and a filler in addition to the antiaging agent of the present invention. Furthermore, the crosslinked polyolefin resin composition used as the inner and outer semiconductive layers in the present invention contains 20 to 100% by weight of conductive carbon based on the polyolefin resin. As the conductive carbon, Ketschen black, acetylene black, furnace black, etc., which are commonly used as conductivity imparting agents, are used.
本発明におけるポリオレフィン系樹脂としては、低密度
ポリエチレン（ＬＤＰＥ）、直鎖状低密度ポリエチレン
（Ｌ−ＬＤＰＥ） 、エチレンプロピレンゴム（ＥＰＲ
）、エチレンエチルアクリレート共重合体（ＥＥＡ）、
エチレン酢酸ビニル共重合体（ＥＶＡ）、エチレンエチ
ルアクリル酸共重合体（ＦＡＡ）、エチレンスチレン共
重合体等の単独もしくはこれらポリオレフィン系樹脂の
２種以上の混合物を使用することができる。Examples of the polyolefin resin in the present invention include low density polyethylene (LDPE), linear low density polyethylene (L-LDPE), and ethylene propylene rubber (EPR).
), ethylene ethyl acrylate copolymer (EEA),
Ethylene vinyl acetate copolymer (EVA), ethylene ethyl acrylic acid copolymer (FAA), ethylene styrene copolymer, and the like can be used alone or in a mixture of two or more of these polyolefin resins.
本発明におけるポリオレフィン系樹脂組成物の構成要素
として添加する架橋剤としては、ポリオレフィン系樹脂
を架橋出来る有機過酸化物であればいずれのものでもよ
い。例えば、ジクミルパーオキサイド、ｔ−ブチルクミ
ルパーオキサイド、α、α９−ビス（ｔ−ブチルパーオ
キシ−ｍ−イソプロピル）ベンゼン、ｍ−（ｔ−ブチル
パーオキシイソプロピル）イソプロピルベンゼン、ｐ−
（ｔ−ブチルパーオキシイソプロピル）イソプロピルベ
ンゼンの単独あるいはこれらの混合物等がある。The crosslinking agent added as a component of the polyolefin resin composition in the present invention may be any organic peroxide that can crosslink the polyolefin resin. For example, dicumyl peroxide, t-butylcumyl peroxide, α,α9-bis(t-butylperoxy-m-isopropyl)benzene, m-(t-butylperoxyisopropyl)isopropylbenzene, p-
Examples include (t-butylperoxyisopropyl)isopropylbenzene alone or a mixture thereof.
本発明における老化防止剤の混合比は４，４′−チオビ
ス（３−メチル−６−ｔ−ブチルフェノール）が全体の
１０〜５０重量％になるように混合されていることが好
ましい。、ポリオレフィン系樹脂に対する老化防止剤の
添加量は０．１〜０゜５重量％が好ましい。０．１重量
％未満ではケーブル材料として必要な熱劣化防止効果が
得られないと共に押出時に焼けが発生しやすく好ましく
ない。The mixing ratio of the anti-aging agent in the present invention is preferably such that 4,4'-thiobis(3-methyl-6-t-butylphenol) is mixed in an amount of 10 to 50% by weight. The amount of anti-aging agent added to the polyolefin resin is preferably 0.1 to 0.5% by weight. If it is less than 0.1% by weight, it is not preferable because the effect of preventing thermal deterioration necessary for a cable material cannot be obtained and burns are likely to occur during extrusion.
さらに５重量％を越えると架橋が阻害され、架橋度が低
く、また老化防止剤がブリードしてくるため好ましくな
い。Furthermore, if it exceeds 5% by weight, crosslinking is inhibited, the degree of crosslinking is low, and the anti-aging agent bleeds out, which is not preferable.
（実施例） 以下に本発明を具体的に説明する。(Example) The present invention will be specifically explained below.
臭胤叢上−２
三層コモンクロスヘツドを設けた押出機を用いて常法に
より導体上に内部半導電層、絶縁層、外部半導電層を押
出被覆した。押出機の設定温度は樹脂温度が１２８〜１
３３℃の範囲となるようにした。絶縁層としては、低密
度ポリエチレン（Ｍ！ ＝ １．０、密度０．９２）に
、本発明の老化防止剤［４，４’−チオビス（３−メチ
ル６−ｔ−ブチルフェノール）とジラウリルチオジブロ
ピオネートとの０．５：１混合物を０．３重量％（実施
例１）または１：１混合物を０．５重量％（実施例２）
コ、およびジクミルパーオキサイドを２重量％配合した
組成物を用いた。押出被覆後、温度２５０〜３００℃で
各層を架橋して２２ｋＶ級架橋ポリエチレンケーブルを
製造した。得られたケーブルの絶縁層を切り出してその
架橋度、焼けを評価し、更に１５０℃で加熱老化試験を
行い、それらの結果を表１示した。Odor Seed Complex 1-2 An internal semiconductive layer, an insulating layer, and an external semiconductive layer were extruded and coated on a conductor by a conventional method using an extruder equipped with a three-layer common crosshead. The set temperature of the extruder is a resin temperature of 128 to 1
The temperature was set to be within the range of 33°C. The insulating layer was made of low-density polyethylene (M! = 1.0, density 0.92) and the anti-aging agent of the present invention [4,4'-thiobis(3-methyl-6-t-butylphenol) and dilaurylthio]. 0.3% by weight of a 0.5:1 mixture with dibropionate (Example 1) or 0.5% by weight of a 1:1 mixture (Example 2)
A composition containing 2% by weight of dicumyl peroxide and dicumyl peroxide was used. After extrusion coating, each layer was crosslinked at a temperature of 250 to 300°C to produce a 22kV class crosslinked polyethylene cable. The insulating layer of the obtained cable was cut out and its degree of crosslinking and burntness were evaluated, and a heat aging test was conducted at 150° C. The results are shown in Table 1.
なお、架橋度は、絶縁層から切り出した試料の初期重量
に対する１１０℃キシレン中２４時間浸漬後の重量を１
００分率で求め、焼けは、４開厚の輪切り片２０枚を５
０倍の走査顕微鏡で観察した。また、加熱老化試験は、
１ｍｍ厚の３号ダンベルを試験片とし、破断伸びが初期
値の５０％になる時間を求めた。The degree of crosslinking is determined by dividing the initial weight of the sample cut from the insulating layer into 1 after immersion in xylene at 110°C for 24 hours.
The burntness is determined by the percentage of 0.00, and the burntness is determined by cutting 20 round slices of 4-thickness into 5
Observation was made using a scanning microscope at 0x magnification. In addition, the heat aging test
A No. 3 dumbbell with a thickness of 1 mm was used as a test piece, and the time required for the elongation at break to reach 50% of the initial value was determined.
比較例１．２
絶縁層として、低密度ポリエチレン（Ｍ Ｉ ＝ １．
０、密度０．９２） に、４，４′−チオビス（３−
メチル−６−１−ブチルフェノール）０．５重量％及び
ジクミルパーオキサイドを２重量％配合したポリエチレ
ン組成物を用いた以外は実施例１．２と同様にして２２
ｋＶ級架橋ポリエチレンケーブルを製造し、実施例と同
一の項目について評価した。さらに上記老化防止剤に賛
えてジラウリルチオジブロピオネートを０．５重量％添
加した他はすべて同じ方法でケーブルを製造し、評価し
た。それらの結果も表１に併記した。Comparative Example 1.2 Low density polyethylene (M I = 1.
0, density 0.92), 4,4'-thiobis(3-
Example 22 was carried out in the same manner as in Example 1.2, except that a polyethylene composition containing 0.5% by weight of methyl-6-1-butylphenol and 2% by weight of dicumyl peroxide was used.
A kV class cross-linked polyethylene cable was manufactured and evaluated on the same items as in the examples. Furthermore, a cable was manufactured and evaluated in the same manner except that 0.5% by weight of dilaurylthiodibropionate was added in addition to the above-mentioned anti-aging agent. The results are also listed in Table 1.
（以下余白）
（発明の効果）
表１からも明らかなように、老化防止剤として４．４′
−チオビス（３−メチル−６−ｔ−ブチルフェノール）
とジラウリルチオジブロピオネートまたはシステアリル
チオジブロビオネートとの混合物を配合したポリオレフ
ィン系樹脂結成物の架橋体を架橋ポリオレフィン絶縁ケ
ーブルの絶縁体層や半導電層に使用すれば、絶縁層や半
導電層中に押出成形時の焼けの発生が無く、かつこれら
の各層を高架橋度にすることが出来、ケーブルの信頼性
を一層向上出来る。(Left below) (Effects of the invention) As is clear from Table 1, 4.4' as an anti-aging agent
-thiobis(3-methyl-6-t-butylphenol)
If a cross-linked polyolefin resin compound containing a mixture of dilauryl thiodibropionate or cystearyl thiodibrobionate is used for the insulating layer or semiconducting layer of a cross-linked polyolefin insulated cable, the insulating layer or There is no occurrence of burning in the semiconductive layer during extrusion molding, and each layer can be highly crosslinked, making it possible to further improve the reliability of the cable.
特許出願人 古河電気工業株式会社Patent applicant: Furukawa Electric Co., Ltd.
Claims (1)
導電層を設けてなるゴム・プラスチック絶縁電力ケーブ
ルにおいて、前記導体上の各層のうち少なくとも一の層
が、４，４’−チオビス（３−メチル−６−ｔ−ブチル
フェノール）とジラウリルチオジブロピオネートまたは
ジステアリルチオジブロピオネートとの混合物を老化防
止剤として含有するポリオレフィン系樹脂組成物の架橋
体で形成されてなることを特徴とするゴム・プラスチッ
ク絶縁電力ケーブル。In a rubber/plastic insulated power cable comprising an inner semiconducting layer, an insulating layer, and an outer semiconducting layer as necessary on a conductor, at least one of the layers on the conductor is 4,4'- It is formed from a crosslinked polyolefin resin composition containing a mixture of thiobis(3-methyl-6-t-butylphenol) and dilaurylthiodipropionate or distearylthiodipropionate as an antiaging agent. A rubber/plastic insulated power cable characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31111890A JPH04184814A (en) | 1990-11-16 | 1990-11-16 | Rubber plastic insulation power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31111890A JPH04184814A (en) | 1990-11-16 | 1990-11-16 | Rubber plastic insulation power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04184814A true JPH04184814A (en) | 1992-07-01 |
Family
ID=18013359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31111890A Pending JPH04184814A (en) | 1990-11-16 | 1990-11-16 | Rubber plastic insulation power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04184814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087185A (en) * | 2010-10-18 | 2012-05-10 | Fujikura Ltd | Insulation resin composition, and insulated electric wire and cable |
-
1990
- 1990-11-16 JP JP31111890A patent/JPH04184814A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087185A (en) * | 2010-10-18 | 2012-05-10 | Fujikura Ltd | Insulation resin composition, and insulated electric wire and cable |
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