JPS59175507A - Method of producing crosslinked rubber and plastic insulatedwire - Google Patents

Method of producing crosslinked rubber and plastic insulatedwire

Info

Publication number
JPS59175507A
JPS59175507A JP58047930A JP4793083A JPS59175507A JP S59175507 A JPS59175507 A JP S59175507A JP 58047930 A JP58047930 A JP 58047930A JP 4793083 A JP4793083 A JP 4793083A JP S59175507 A JPS59175507 A JP S59175507A
Authority
JP
Japan
Prior art keywords
plastic
methylphenol
thiobis
dicumyl peroxide
cross
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
Application number
JP58047930A
Other languages
Japanese (ja)
Inventor
木村 人司
植杉 賢司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP58047930A priority Critical patent/JPS59175507A/en
Publication of JPS59175507A publication Critical patent/JPS59175507A/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、特に架橋剤又は架橋剤と老化防止剤との混合
物の溶液を比較的低温において押出機中に供給すること
を可能にし、製造装置のメンテナンスを容易にした改善
された架橋ゴム・プラスチック絶縁電線の製造方、法に
関するものである。
DETAILED DESCRIPTION OF THE INVENTION In particular, the present invention makes it possible to feed a solution of a crosslinking agent or a mixture of a crosslinking agent and an antiaging agent into an extruder at a relatively low temperature, facilitating maintenance of the production equipment. This invention relates to an improved method for producing crosslinked rubber/plastic insulated wires.

架橋させたゴム・プラスチック等を導体上に被覆した絶
縁電線の製造方法としては、従来、スクリュ一式押出機
にゴム又はプラスチックを供給すると共に、押出機の押
出バレルの一部から液化した架橋剤又は架橋剤又は架橋
剤と老化防止剤との混和物を直接圧入して押出機の内部
で溶融状態の前記ゴム又はプラスチックと混練し、これ
をそのまま導体上に押出被覆した後、加熱し架橋して絶
縁電線を製造する方法が知られている。
Conventionally, in the manufacturing method of insulated wires in which a conductor is coated with cross-linked rubber or plastic, rubber or plastic is supplied to a screw extruder, and a liquefied cross-linking agent or A cross-linking agent or a mixture of a cross-linking agent and an anti-aging agent is directly press-injected and kneaded with the molten rubber or plastic inside an extruder, and this is extruded and coated on a conductor as it is, and then heated and cross-linked. Methods of manufacturing insulated wires are known.

しかして、この場合の前記架橋剤と老化防止剤すなわち
抗酸化剤との併用の場合には、通常ジクミルパーオキサ
イドと4.4′−チオビス−(6−ターシャリ−ブチル
−3−メチルフェノール)が用いられ、これらを同時に
押出機のバレルに注入するたや、液化に際し融点の低い
ジクミルパーオキサイド(融点:40℃)に4.4′ 
−チオビス−(6−ターシャリ−ブチル−3−メチルフ
ェノール)を完全に溶解させるには70℃以上の温度を
必要とする。もしこの温度より低下すると、前記の4,
4′−チオビス−(6−ターシャリ−ブチル−3−メチ
ルフェノール)が溶液から析出する。
In this case, when the crosslinking agent is used in combination with an anti-aging agent, that is, an antioxidant, dicumyl peroxide and 4,4'-thiobis-(6-tert-butyl-3-methylphenol) are usually used together. were used, and when they were simultaneously injected into the barrel of the extruder, 4.4'
A temperature of 70° C. or higher is required to completely dissolve -thiobis-(6-tert-butyl-3-methylphenol). If the temperature drops below this level, 4.
4'-thiobis-(6-tert-butyl-3-methylphenol) precipitates out of solution.

従って、従来はこの液化溶液の貯槽タンク、押出機まで
の配管、送り出し用ポンプ等前記溶液が通過する流路は
全て70℃以上の温度に保持しなければならなくなる。
Therefore, conventionally, all flow paths through which the solution passes, such as a storage tank for the liquefied solution, piping to the extruder, and a delivery pump, must be maintained at a temperature of 70° C. or higher.

配管路、ポンプ等は比較的複雑な形状をしているので、
これらの部分を十分に保温することは難しく、設備コス
トが高くなる。又製造装置全体のメンテナンスが極め−
C困難になる。
Pipes, pumps, etc. have relatively complex shapes, so
It is difficult to keep these parts sufficiently warm, which increases equipment costs. Also, maintenance of the entire manufacturing equipment is extremely important.
C It becomes difficult.

その上、局部的に温度の高くなる部分も生じ易いため危
険が伴なう等の問題も生ずる。
In addition, problems such as danger arise because there are likely to be areas where the temperature becomes locally high.

本発明の目的は、以上の問題点に着目し、種々検討した
結果ジクミルパーオキサイド中に4゜4′−チオビス−
(6−ターン1フリーブヂルー3−メチルフエノール)
を溶解させ、これを押出機内の溶融状態のゴム・プラス
チック中に注入する方法において、安全性を高め、かつ
製造装置等の運転上のメンテナンスが従来に比して容易
にできる方法を見出した架橋ゴム・プラスチック絶縁電
線の製造方法を提供しようとするものである。
The purpose of the present invention was to solve the above problems and, as a result of various studies, to obtain 4゜4'-thiobis-
(6-turn 1 free budyl 3-methylphenol)
A cross-linking method has been discovered that improves safety and makes operational maintenance of manufacturing equipment easier than before by dissolving and injecting it into molten rubber and plastic in an extruder. The present invention aims to provide a method for manufacturing rubber/plastic insulated wires.

すなわち、本発明は押出機内の溶融状態のゴム・プラス
チック中に液状の架橋剤を圧入し混線後、これを導体上
に押出被覆し続いて加熱し架橋する架橋ゴム・プラスチ
ック絶縁電線の製造方法において、液状架橋剤として加
熱して溶融させたジクミルパーオキサイド中に4,4′
 −チオビス−(6−ターシャリ−ブチル−3−メチル
フェノール)を溶解させた溶液を窒素ガス雰囲気中で加
熱し、前記ジクミルパーオキサイドの0.5〜10重量
%を分解させ、発生したラジカルを前記4,4′〜チオ
ビス−(6−ターシャリ−ブチル−3−メチルフェノー
ル)に作用させて1qられた反応生成物溶液を用いるこ
とにより40〜55℃という低い温度で押出機内のゴム
又はプラスチック中に圧入できるため安全であり、かつ
製造装置など運転上のメンテナンスが容易、かつ簡単で
あるなどの効果が1qられるちのである。本発明で用い
る液状架橋剤(即ち前記反応生成物溶液)を調整する際
の架橋剤であるジクミルパーオキサイドの分W?優範囲
を0.5〜10重M%と限定したのは、0.5重量%未
満では温度40℃において4,4′ −チオどスー(6
−ターン1シリーブチルー3−メチルフエノール)の析
出が防止されるという効果が1qられず、逆に10重量
%を越えると、ジクミルパーオキサイドの純度が悪くな
るため架橋効率(叩も架橋剤の使用量に対する樹脂の架
橋化度の割合ンが高くならないためである。なお、前記
反応生成物溶液の使用に際しては40〜55℃の温度範
囲に保持することが必要である。その理由は40℃未満
ではジクミルパーオキサイドが溶融せず、従って均質な
溶沼にならないためである。一方、55℃を越えるとジ
クミルパーオキサイドの分解に近づくおそれがあるので
不可である。50’CJy、下、に・すると分解が非常
に少く、長時間安定であって望ましい。
That is, the present invention relates to a method for manufacturing a crosslinked rubber/plastic insulated wire, in which a liquid crosslinking agent is press-injected into molten rubber/plastic in an extruder, crosslinked, and then extruded and coated onto a conductor, followed by heating and crosslinking. , 4,4' in dicumyl peroxide heated and melted as a liquid crosslinking agent.
A solution in which -thiobis-(6-tert-butyl-3-methylphenol) is dissolved is heated in a nitrogen gas atmosphere to decompose 0.5 to 10% by weight of the dicumyl peroxide and remove the generated radicals. By using the reaction product solution obtained by reacting with the 4,4'-thiobis-(6-tert-butyl-3-methylphenol) to produce 1q, it is possible to inject into rubber or plastic in an extruder at a low temperature of 40 to 55°C. It is safe because it can be press-fitted into the machine, and it also has the advantage of being easy and simple to maintain the manufacturing equipment. W? The reason why the preferential range was limited to 0.5 to 10% by weight was because 4,4'-thiodosu(6
- If the effect of preventing precipitation of turn 1 silybutyl-3-methylphenol is not achieved by 1q, and conversely exceeds 10% by weight, the purity of dicumyl peroxide will deteriorate and the crosslinking efficiency (also known as the use of a crosslinking agent) This is because the ratio of the degree of crosslinking of the resin to the amount does not become high.In addition, when using the reaction product solution, it is necessary to maintain the temperature in the range of 40 to 55 °C. This is because dicumyl peroxide will not melt and therefore will not form a homogeneous molten bog. On the other hand, if the temperature exceeds 55°C, dicumyl peroxide may approach decomposition, so it is not possible. 50'CJy, lower, This is desirable because it causes very little decomposition and is stable for a long time.

なお、前記のジクミルパーオキサイドど4゜4′−チオ
ビス−(6−ターシャリ−ブチル−3−メチルフェノー
ル)溶解と反応に際し、雰囲気を窒素ガスにしたのは、
空気中の酸素と、ジクミルパーオキサイドの作用により
、4.4′ −チオビス−(6−ターシャリ−ブチル−
3−メチルフェノール)が析出するためである。
In addition, during the dissolution and reaction of dicumyl peroxide and 4゜4'-thiobis-(6-tert-butyl-3-methylphenol), the atmosphere was changed to nitrogen gas.
Due to the action of oxygen in the air and dicumyl peroxide, 4,4'-thiobis-(6-tert-butyl-
This is because 3-methylphenol) is precipitated.

以下本発明の実施例を比較例と対比しつつ図面にて説明
する。
Examples of the present invention will be described below with reference to the drawings while comparing them with comparative examples.

実施例1 第1図は本実施例にて用いた注入ラインの模式説明図で
ある。
Example 1 FIG. 1 is a schematic illustration of an injection line used in this example.

溶解反応槽1中に材料投入ホッパー2よりジクミルパー
オキサイドと、4.4′ 〜チオビスー(6−ターシャ
リ−1チル−3−メチルフェノール)とを仕込み、ジク
ミルパーオキサイド中に4゜4′−チオビス−(6−タ
ーシャリ−ブチル−3=メチルフエノール)を9重量%
溶解し、窒素ガス3を溶解反応槽1の空間部に導入し、
窒素ガス3の雰囲気下で、温度80℃にて、30時間、
攪拌機4にて攪拌しながら、加熱して、前記ジクミルパ
−オキサイドを4.8%分解させた。この反応4を酸物
溶液5を下方の攪拌16付き貯槽7に移し、注入ライン
、すなわちストレーナ8及びポンプ9を経由してライン
より第1図に示す如く押出機10の圧縮部11からこの
押出機10のポリエチレン(図示ぜず)中に注入する。
Dicumyl peroxide and 4.4' to thiobis(6-tert-1-thyl-3-methylphenol) were charged into the dissolution reaction tank 1 from the material input hopper 2, and the dicumyl peroxide was mixed with 4°4' -thiobis-(6-tert-butyl-3=methylphenol) 9% by weight
and introducing nitrogen gas 3 into the space of the dissolution reaction tank 1,
Under an atmosphere of nitrogen gas 3 at a temperature of 80°C for 30 hours,
The dicumyl peroxide was decomposed by 4.8% by heating while stirring with the stirrer 4. This reaction 4 is transferred to a lower storage tank 7 with an agitator 16, and this extrusion is carried out from the compression section 11 of an extruder 10 via an injection line, that is, a strainer 8 and a pump 9, as shown in FIG. Inject into polyethylene (not shown) in machine 10.

この場合に前記貯槽7及びその中の反応生成物溶液5、
さらにストレート8、ポンプ9等注入ラインはすべて温
度45℃に設定してこれを維持した。
In this case said storage tank 7 and the reaction product solution 5 therein;
Furthermore, the temperature of all injection lines such as straight 8 and pump 9 was set to 45° C. and maintained at this temperature.

前記注入後、よく混練した後、導体く図示せず)上に前
記押出機10により押出被覆し、この被覆層にさらに加
熱架橋処理を施して6 K V 2503 qの架橋ポ
リエチレン絶縁ケーブルを製造した。製造結果及び得ら
れたケーブルの特性を表−1に示す。
After the injection and thorough kneading, the extrusion coating was applied to the conductor (not shown) using the extruder 10, and this coating layer was further heat-crosslinked to produce a crosslinked polyethylene insulated cable of 6 KV 2503 q. . Table 1 shows the manufacturing results and the characteristics of the obtained cable.

製造中、配管−スI〜レーナ等が前記4.4’−チオビ
ス−(6−t−ブチル−3−メチルフェノール)の析出
のためつまるようなことがなく安全に製造装置の運転が
できた。又、製造装置のメンテナンスが容易であり、本
発明の効果が」−分間められた。
During production, the production equipment could be operated safely without any clogging of the pipes I to Lena due to the precipitation of 4,4'-thiobis-(6-t-butyl-3-methylphenol). . Furthermore, maintenance of the manufacturing equipment was easy, and the effects of the present invention were appreciated.

実施例2 実施例1ど同じく第1図に示すように、ジクミルパーオ
キサイドに4.4′ −チオビス−(,6−ターシャリ
−1,チル−3−メチルフェノール)を13重量%溶解
し、溶解反応槽1中で窒素ガス3の雰囲気下で、湿度7
0℃に−U、60時間加熱してジクミルパーオキサイド
の2.6%を分解させた。ここで得られた反応生成物溶
液5を実施例1と同様にして処理した。実施例1と略々
同様な本発明の顕著な効果が得られた。
Example 2 As in Example 1, as shown in FIG. 1, 13% by weight of 4,4'-thiobis-(,6-tert-1,thyl-3-methylphenol) was dissolved in dicumyl peroxide. In the dissolution reaction tank 1, under an atmosphere of nitrogen gas 3, the humidity is 7.
Heating at -U for 60 hours decomposed 2.6% of the dicumyl peroxide. The reaction product solution 5 obtained here was treated in the same manner as in Example 1. Remarkable effects of the present invention substantially similar to those in Example 1 were obtained.

比較例1 実施例1ど同じく第1図に示すように、ジクミルパーオ
キサイドに4.4′ −チオビス−(6−タージヤリー
プヂルー3−メチルフェノール)を10重量%溶解し、
溶解反応槽1中で窒素ガス3の雰囲気下で、温度70℃
にて、10時間加熱してジクミルパーオキサイドの0.
4%を分解させた。ここで得られた反応生成物溶液5を
、実施例1と同様にして処理した。ところが、配管、ス
l〜レーナ8等がつまり運転を中止した。装置のメンテ
ナンスにも手間がかかり、又上記のように安全運転がで
きなかった。
Comparative Example 1 As in Example 1, as shown in Figure 1, 10% by weight of 4,4'-thiobis-(6-tertiary pudyl-3-methylphenol) was dissolved in dicumyl peroxide.
In the dissolution reaction tank 1 under an atmosphere of nitrogen gas 3, at a temperature of 70°C.
was heated for 10 hours to reduce the dicumyl peroxide concentration to 0.
4% was degraded. The reaction product solution 5 obtained here was treated in the same manner as in Example 1. However, the piping, slider 8, etc. were clogged and the operation was stopped. Maintenance of the device was time-consuming, and as mentioned above, safe operation was not possible.

比較例2 実施例1と同じく第1図に示ずように、ジクミルパーオ
キサイドに4,4′ 〜チオビスー(6−1−ブチル−
3−メチルフェノール)を13重量%溶解し、溶解反応
槽1中で窒素ガス3の雰囲気下で、温度80°Gにて、
80時間加熱してジクミルパーオキサイドの12.6%
を分解させた。ここで得られた反応生成物溶液5を、実
施例1と同様にしで処理した。運転上は特に問題なかっ
たが、ケーブルのゲル分率が低かった。
Comparative Example 2 As in Example 1, as shown in FIG.
3-methylphenol) was dissolved at 13% by weight in a dissolution reaction tank 1 under an atmosphere of nitrogen gas 3 at a temperature of 80°G.
12.6% of dicumyl peroxide after heating for 80 hours
was decomposed. The reaction product solution 5 obtained here was treated with soap in the same manner as in Example 1. There were no particular problems in operation, but the gel content of the cable was low.

以上述べたように、本発明によれば、ジクミルパーオキ
サイドに4.4′ −チオビス−(6−ターシャリ−ブ
チル−3−メチルフェノール)を溶解させ、押出機10
に注入するプロレスにおいて、従来のようにライン全体
を約70℃以上の高温に保温しな(でも、上記の反応生
成物溶液5を入れた貯槽(タンク)7のみを、高温にづ
ることにより他のラインば40°C稈度の保温で、4.
4′ −チオビス−(6−ターシVリーブチルー3−メ
チルフェノール)が析出することなしに押出機10の圧
縮部11に注入り−ることかできる。
As described above, according to the present invention, 4,4'-thiobis-(6-tert-butyl-3-methylphenol) is dissolved in dicumyl peroxide, and the extruder 10
In professional wrestling, the entire line is not kept at a high temperature of about 70°C or higher as in the past (but by heating only the storage tank 7 containing the reaction product solution 5 to a high temperature, other parts can be heated). 4. Insulate the line at 40°C culm temperature.
4'-thiobis-(6-tertiarybutyl-3-methylphenol) can be injected into the compression section 11 of the extruder 10 without precipitation.

これにより従来に比較して運転上の安全性が高まり、装
置のメンテナンスも容易になった。
This has increased operational safety and made equipment easier to maintain than before.

ll11m古の浄書(内容に変更なし)ll 11m old engraving (no changes in content)

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例に係わる注入ラインの模式説
明図である。 1・・・溶解反応槽    2・・・材料投入ホッパー
3・・・窒素ガス    4・・・攪拌機5・・・反応
生成物溶液 6・・・攪拌機7・・・貯槽      
 8・・・ストレーナ9・・・ポンプ     10・
・・押出機11・・・押出1ioの圧縮部 特許出願人  古河電気工業株式会社 手続補正書(方式) 昭和58年 7月 6 日 1、事件の表示 昭和58年 特 許 願第 47930号2、発明の名
称゛ 架橋ゴム・ブラスチンク絶縁電線の製造方法 3、補正をする者 事件との関係 特許出願人 +5291  古河電気工業株式会社
FIG. 1 is a schematic explanatory diagram of an injection line according to an embodiment of the present invention. 1...Dissolution reaction tank 2...Material input hopper 3...Nitrogen gas 4...Stirrer 5...Reaction product solution 6...Stirrer 7...Storage tank
8... Strainer 9... Pump 10.
... Extruder 11... Compression section of extrusion 1io Patent applicant: Furukawa Electric Co., Ltd. Procedural amendment (method) July 6, 1981 1, Indication of case 1981 Patent Application No. 47930 2, Title of the invention ゛ Manufacturing method for cross-linked rubber/blastink insulated wire 3, relationship to the amended case Patent applicant +5291 Furukawa Electric Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 1、押出機内の溶融状態のゴム又はプラスチック中に液
状の架橋剤を圧入し、混線後、これを導体上に押出被覆
し、続いて加熱し架橋して架橋ゴム・プラスチック絶縁
電線を製造する方法においで、液状架橋剤として、加熱
溶融させたジクミルパーオキサイド中に4゜4′−チオ
ビス−(6−タージヤリーブヂルー3−メチルフェノー
ル)を溶解させた溶液を窒素ガス雰囲気中で加熱し、前
記ジクミルパーオキサドの0,5〜10重量%を分解さ
せ、発生したラジカルを前記4,4′ −チオビス−(
6−ターシャリ−ブチル−3−メチルフェノール)に作
用させて得られた反応生成物溶液を用いることを特徴と
する架橋ゴム・プラスチック絶縁電線の製造方法。
1. A method in which a liquid cross-linking agent is press-fitted into molten rubber or plastic in an extruder, and after cross-wiring, this is extruded and coated onto a conductor, followed by heating and cross-linking to produce a cross-linked rubber/plastic insulated wire. As a liquid crosslinking agent, a solution of 4°4'-thiobis-(6-tertiary butylene-3-methylphenol) dissolved in heated and melted dicumyl peroxide was heated in a nitrogen gas atmosphere. Then, 0.5 to 10% by weight of the dicumyl peroxide is decomposed, and the generated radicals are converted into the 4,4'-thiobis-(
1. A method for producing a crosslinked rubber/plastic insulated wire, which comprises using a reaction product solution obtained by reacting 6-tert-butyl-3-methylphenol.
JP58047930A 1983-03-24 1983-03-24 Method of producing crosslinked rubber and plastic insulatedwire Pending JPS59175507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58047930A JPS59175507A (en) 1983-03-24 1983-03-24 Method of producing crosslinked rubber and plastic insulatedwire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58047930A JPS59175507A (en) 1983-03-24 1983-03-24 Method of producing crosslinked rubber and plastic insulatedwire

Publications (1)

Publication Number Publication Date
JPS59175507A true JPS59175507A (en) 1984-10-04

Family

ID=12789083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58047930A Pending JPS59175507A (en) 1983-03-24 1983-03-24 Method of producing crosslinked rubber and plastic insulatedwire

Country Status (1)

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JP (1) JPS59175507A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6399239A (en) * 1986-06-10 1988-04-30 Sumitomo Chem Co Ltd Production of crosslinked rubber product
US20100029852A1 (en) * 2008-07-03 2010-02-04 Rhein Chemie Rheinau Gmbh Process and apparatus for the preparation of crosslinkable rubber mixtures

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6399239A (en) * 1986-06-10 1988-04-30 Sumitomo Chem Co Ltd Production of crosslinked rubber product
US20100029852A1 (en) * 2008-07-03 2010-02-04 Rhein Chemie Rheinau Gmbh Process and apparatus for the preparation of crosslinkable rubber mixtures
US8846816B2 (en) * 2008-07-03 2014-09-30 Rhein Chemie Rheinau Gmbh Process and apparatus for the preparation of crosslinkable rubber mixtures

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