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JPS6011968B2 - Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer - Google Patents
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JPS6011968B2 - Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer - Google Patents

Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer

Info

Publication number
JPS6011968B2
JPS6011968B2 JP5810081A JP5810081A JPS6011968B2 JP S6011968 B2 JPS6011968 B2 JP S6011968B2 JP 5810081 A JP5810081 A JP 5810081A JP 5810081 A JP5810081 A JP 5810081A JP S6011968 B2 JPS6011968 B2 JP S6011968B2
Authority
JP
Japan
Prior art keywords
copolymer
ethylene
vinyl
vinyl chloride
vinyl ester
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.)
Expired
Application number
JP5810081A
Other languages
Japanese (ja)
Other versions
JPS57172912A (en
Inventor
知己 稲田
紀雄 高畑
政勝 佐藤
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP5810081A priority Critical patent/JPS6011968B2/en
Publication of JPS57172912A publication Critical patent/JPS57172912A/en
Publication of JPS6011968B2 publication Critical patent/JPS6011968B2/en
Expired legal-status Critical Current

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  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

【発明の詳細な説明】 本発明はエチレン・ビニルェステル共重合体を基体とし
、これに塩化ビニルをグラフト共重合させたグラフト共
重合体を架橋処理する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for crosslinking a graft copolymer prepared by graft copolymerizing vinyl chloride onto an ethylene/vinyl ester copolymer as a base.

エチレン・ビニルェステル共重合体を基体とし、これに
塩化ビニルをグラフト共重合させたエチレン・ピニルェ
ステル共重合体−塩化ピニルグラフト共重合体は、グラ
フトする塩化ビニルの量によって種々の柔軟度のものが
得られる。
The ethylene/pinyl ester copolymer-pinyl chloride graft copolymer, which is made by graft copolymerizing vinyl chloride onto an ethylene/vinyl ester copolymer as a base, can have various degrees of flexibility depending on the amount of vinyl chloride grafted. .

そして硬質成形品あるいは欧質成形品にした場合、前者
は耐衝撃性や耐寒性に優れ、後者は可塑剤の非移行性、
耐寒性などの特徴を有する優れた樹脂である。
When making hard molded products or European quality molded products, the former has excellent impact resistance and cold resistance, while the latter has good plasticizer non-migration and
It is an excellent resin with features such as cold resistance.

これに加えて、この材料は放射線あるいは有機過酸化物
等の遊離基発生剤の存在下で架橋化が可能であり、これ
によりさらに耐熱性向上が付加される。
In addition, the material can be crosslinked in the presence of radiation or free radical generators such as organic peroxides, which adds further heat resistance.

しかし放射線照射に依る方法では厚肉、大サイズ品の製
造に難点があり、また可能であっても極めて大がかりな
設備が必要であり、現実的ではない。
However, methods that rely on radiation irradiation have difficulties in manufacturing thick-walled, large-sized products, and even if possible, extremely large-scale equipment is required, making it impractical.

また有機過酸化物等を用いるいわゆる化学架橋法では、
加熱や加圧が必要であるため、例えば異型品やパイプ、
チューブ等では形状保持ができず、応用できない問題が
あった。本発明の目的は、前記した従来技術の問題点を
解消し、簡単に架橋化エチレン・ビニルヱステル共重合
体−塩化ビニルグラフト共重合体の得られる架橋処理方
法を提供することにある。
In addition, in the so-called chemical crosslinking method using organic peroxides,
Because heating and pressurization are required, for example, irregularly shaped products, pipes,
There was a problem that tubes and the like could not maintain their shape and could not be applied. An object of the present invention is to solve the problems of the prior art described above and to provide a crosslinking treatment method by which a crosslinked ethylene/vinyl ester copolymer-vinyl chloride graft copolymer can be easily obtained.

すなわち「本発明の要旨とするところは、エチレン・ビ
ニルェステル共重合体を基体とし、これに塩化ビニルを
グラフト共重合させたグラフト共重合体にシラン化合物
と遊離基発生剤を加えて加熱し、グラフト共重合体にシ
ラン化合物を付加せしめた後、水分の存在下においてシ
ラノール縮合触媒を用いて架橋処理を行うことにある。
In other words, ``The gist of the present invention is to graft a graft copolymer prepared by graft copolymerizing vinyl chloride onto an ethylene/vinyl ester copolymer, adding a silane compound and a free radical generator, and heating the resulting graft copolymer. After adding a silane compound to a copolymer, a crosslinking treatment is performed using a silanol condensation catalyst in the presence of moisture.

本発明の方法により、架橋処理できるグラフト共重合体
は、グラフト基体としてエチレンとビニルェステル特に
ェステル基に2〜4個の炭素原子をもつもの、具体的に
は酢酸ビニル、アクリル酸エチルとの共重合体等が用い
られる。本発明において、エチレン−ビニルェステル−
塩化ピニルグラフト共重合体と相溶性のあるポリ塩化ビ
ニル、塩素化ポリエチレン、ポリエチレン、エチレン−
酢酸ビニル共重合体、エチレン−Qオレフィン共重合体
などのポリマを適宜混合して用いることは当然行ない得
る範囲のものである。
Graft copolymers that can be crosslinked by the method of the present invention include copolymers of ethylene and vinyl ester, particularly those having 2 to 4 carbon atoms in the ester group, specifically vinyl acetate and ethyl acrylate as the graft base. Combination etc. are used. In the present invention, ethylene-vinyl ester-
Polyvinyl chloride, chlorinated polyethylene, polyethylene, and ethylene that are compatible with pinyl chloride graft copolymers
It is naturally possible to use a suitable mixture of polymers such as vinyl acetate copolymer and ethylene-Q olefin copolymer.

シラン化合物としては、一般式RR′SiY2で示され
るものであり、ここでRは例えばビニル基、アリル基、
ブチニル基、シクロヘキセニル基の不飽和な炭化水素基
またはハイドロカーボンオキシ基を表わし、Yは例えば
メトキシ基、ェトキシ基のようなアルコキシ基、例えば
ホルミロキシ基、アセトキシ基のようなアシロキシ基、
オキシム基等の任意の加水分解しうる有機基であり、R
′は基Rまたは基Yであることができる。
The silane compound is represented by the general formula RR'SiY2, where R is, for example, a vinyl group, an allyl group,
It represents an unsaturated hydrocarbon group or hydrocarbonoxy group such as a butynyl group or a cyclohexenyl group, and Y is an alkoxy group such as a methoxy group or an ethoxy group, an acyloxy group such as a formyloxy group or an acetoxy group,
Any hydrolyzable organic group such as an oxime group, R
' can be a group R or a group Y.

シランは3個の加水分解しうる有機基を含有するのが好
適であり、例えばビニルトリメトキシシラン、ビニルト
リエトキシシラン、ビニルトリアセトキシシランなどで
ある。
Preferably, the silane contains three hydrolyzable organic groups, such as vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetoxysilane, and the like.

また遊離基発生剤としては、有機過酸化物及びパーェス
テル例えば過酸化ペンゾィル「過酸化ジクロルベンゾイ
ル、ジクミル/ぐ−オキサイド、2・5ージ(ベルオキ
シベンゾエート)へキシンー3・1・3ビス(tプチル
−ベルオキシイソプロピル)ベンゼン、過酸化ラゥロィ
ル、第3ブチルベルアセテート、215:−ジメチルー
2・5ージ(tブチルベルオキシ)へキシンー3・2・
5ージメチルー2・5ージ(tブチルベルオキシ)へキ
サンおよびtプチルベルベンゾエート、アゾ化合物例え
ばアゾビスーイソブチロニトリルおよびジメチルアゾィ
ソブチレートを挙げることができ、ジクミルパーオキサ
ィドが最も好ましい。
Examples of free radical generators include organic peroxides and peresters such as penzoyl peroxide, dichlorobenzoyl peroxide, dicumyl/g-oxide, 2,5-di(beroxybenzoate), hexyne-3,1,3-bis( t-butyl-beroxyisopropyl)benzene, lauroyl peroxide, tert-butylberacetate, 215:-dimethyl-2,5-di(t-butylberoxy)hexyne-3,2.
Mention may be made of 5-dimethyl-2,5-di(t-butylberoxy)hexane and t-butylberbenzoate, azo compounds such as azobi-isobutyronitrile and dimethyl azoisobutyrate, dicumyl peroxide Most preferred.

シラノール縮合触媒としては、例えばジブチル錫ジラウ
レート、酢酸第一錫、オクタン酸第一錫、ナフテン酸鉛
、カプリル酸亜鉛、2ーェチルヘキサン酸鉄、ナフテン
酸コバルトのようなカルボン酸塩、チタン酸ェステルお
よびキレート化合物のような有機金属化合物例えばチタ
ン酸テトラブチルェステル、チタン酸テトラノニルェス
テルおよびピス(アセチルアセトニトリル)ジーイソプ
ロピルチタネート、有機塩基例えばエチルアミン、ヘキ
シルアミン、ジブチルアミンおよびピリジン、酸例えば
無機酸および脂肪酸が挙げられる。
Examples of silanol condensation catalysts include carboxylates, titanate esters and chelates such as dibutyltin dilaurate, stannous acetate, stannous octoate, lead naphthenate, zinc caprylate, iron 2-ethylhexanoate, cobalt naphthenate. Organometallic compounds such as titanate tetrabutyl ester, titanate tetranonyl ester and pis(acetylacetonitrile) diisopropyl titanate, organic bases such as ethylamine, hexylamine, dibutylamine and pyridine, acids such as inorganic acids and fatty acids. can be mentioned.

好適な触媒は有機錫化合物例えばジブチル錫ジラウレー
ト、ジブチル錫ジアセテートおよびジブチル錫ジオクト
ェートである。
Suitable catalysts are organotin compounds such as dibutyltin dilaurate, dibutyltin diacetate and dibutyltin dioctate.

このシラノール縮合触媒は、シラン化合物や遊離基発生
剤と共にはじめにグラフト共重合体に加えてもよいし、
また任意の時点で加えても、あるいは水に接触させると
きに表面に塗布しても、あるいは水中に分散させて用い
ても何ら差支えない。
The silanol condensation catalyst may be initially added to the graft copolymer along with the silane compound and the free radical generator, or
There is no problem in adding it at any time, applying it to the surface when it comes into contact with water, or dispersing it in water.

また実用的な組成物を作るために、フタル酸ヱステル、
アジピン酸ェステル、トリメリット酸ェステル、ポリエ
ステル、ェポキシ系可塑剤、塩化パラフィンなどの可塑
剤、あるいは鉛系安定剤、ェポキシ系安定剤、有機錫化
合物、金属脂肪酸塩などの安定剤頚、クレー、タルク、
炭酸カルシウム、水酸化アルミニウム、水酸化マグネシ
ウム、カーボンブラックのような充填剤、発泡剤、着色
剤、酸化防止剤、滑剤、紫外線安定剤、金属書劣化防止
剤等は、組成物において意図する効果がもたらされるよ
うに任意の適当な量比で配合することは当然本発明の範
囲内に入るものである。次に本発明の具体的実施例につ
いて説明する。エチレン含有量55%、酢酸ビニル含有
量45%のエチレン・酢酸ビニル共重合体に対し、塩化
ビニルを45:55の重量比でグラフト共重合して成る
グラフト共重合体10の重量部に、トリオクチルトリメ
リテート1の重量部、三塩基性硫酸鉛5重量部、ステア
リン酸鉛1重量部を配合した組成物凶を混練してからべ
レツト化した。このべレツトに、ビニルトリメトキシシ
ラン2.の重量部中にジクミルパーオキサィド0.15
重量部を予め溶解した液状物を吸収させ、これを押出機
で混練し、シラン化合物をグラフト共重合させたコンパ
ウンドを得た。
In addition, in order to make a practical composition, phthalate ester,
Plasticizers such as adipate esters, trimellitate esters, polyesters, epoxy plasticizers, and chlorinated paraffin, or stabilizers such as lead stabilizers, epoxy stabilizers, organotin compounds, metal fatty acid salts, clay, and talc. ,
Fillers such as calcium carbonate, aluminum hydroxide, magnesium hydroxide, and carbon black, blowing agents, colorants, antioxidants, lubricants, ultraviolet stabilizers, metallurgical deterioration inhibitors, etc., may have the intended effect in the composition. It is, of course, within the scope of the present invention to blend them in any suitable ratio as desired. Next, specific examples of the present invention will be described. To 10 parts by weight of a graft copolymer obtained by graft copolymerizing vinyl chloride at a weight ratio of 45:55 to an ethylene/vinyl acetate copolymer having an ethylene content of 55% and a vinyl acetate content of 45%, A composition containing 1 part by weight of octyl trimellitate, 5 parts by weight of tribasic lead sulfate, and 1 part by weight of lead stearate was kneaded and formed into a pellet. Add 2.5% vinyltrimethoxysilane to this beret. 0.15 parts by weight of dicumyl peroxide
A liquid material in which parts by weight were dissolved in advance was absorbed, and this was kneaded using an extruder to obtain a compound in which a silane compound was graft copolymerized.

このコンパウンド10の重量部に対し、前記脚に更にジ
ブチル錫ジラゥレートを加えて成る触媒マスターバッチ
5重量部を加えて押出機に投入し、内契2仇舷、外径3
比舷のチューブを押出成型した。これを6000の温水
中に6時間浸潰して架橋処理した。この押出成型チュー
ブの70qoテトラヒドロフラン中20時間浸道後のゲ
ル分率は60%であり、完全に架橋化されていることを
認めた。このチューブの25qoにおける引張強さは1
.65k9/秘で、伸びは310%で、耐寒性は−40
℃以下であった。
To the weight of this compound 10, 5 parts by weight of a catalyst masterbatch made by adding dibutyltin dilarate to the leg was added and charged into an extruder.
The comparison tube was extruded. This was soaked in 6,000 °C warm water for 6 hours to perform crosslinking treatment. After immersing this extruded tube in 70 qo tetrahydrofuran for 20 hours, the gel fraction was 60%, indicating that it was completely crosslinked. The tensile strength of this tube at 25qo is 1
.. 65k9/hi, elongation is 310%, cold resistance is -40
It was below ℃.

本発明の架橋処理方法によって得られる架橋化エチレン
・ビニルェステル−塩化ビニルグラフト共重合体は、実
施例のチューブの他に、パイプ、異型品、電線・ケーブ
ルの絶縁体や保護シース、シート、フィルム、発泡体等
への応用が可能である。
The crosslinked ethylene vinyl ester-vinyl chloride graft copolymer obtained by the crosslinking treatment method of the present invention can be used in addition to the tubes of Examples, as well as pipes, irregularly shaped products, insulators for electric wires and cables, protective sheaths, sheets, films, etc. It can be applied to foams, etc.

本発明はエチレン・ビニルェステル共重合体一塩化ビニ
ルグラフト共重合体の簡単な努軒喬処理方法を提供する
ものであり、その工業的価値は極めて大なるものがある
The present invention provides a simple method for treating ethylene vinyl ester copolymer and vinyl monochloride graft copolymer, and its industrial value is extremely large.

Claims (1)

【特許請求の範囲】[Claims] 1 エチレン・ビニルエステル共重合体を基本とし、こ
れに塩化ビニルをグラフト共重合体−塩化ビニルグラフ
ト共重合体に、不飽和基含有シラン化合物と遊離ラジカ
ル発生剤を加えて加熱して上記エチレン・ビニルエステ
ル共重合体−塩化ビニルグラフト共重合体にシラン化合
物をグラフト共重合させた後、シラノール縮合触媒の存
在下において水分にさらすことを特徴とするエチレン・
ビニルエステル共重合体−塩化ビニルグラフト共重合体
の架橋処理方法。
1 Based on ethylene/vinyl ester copolymer, vinyl chloride is grafted onto this copolymer - vinyl chloride graft copolymer is added with an unsaturated group-containing silane compound and a free radical generator and heated to form the ethylene/vinyl ester copolymer. Ethylene, which is characterized by graft copolymerizing a silane compound onto a vinyl ester copolymer-vinyl chloride graft copolymer and then exposing it to moisture in the presence of a silanol condensation catalyst.
A method for crosslinking a vinyl ester copolymer-vinyl chloride graft copolymer.
JP5810081A 1981-04-17 1981-04-17 Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer Expired JPS6011968B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5810081A JPS6011968B2 (en) 1981-04-17 1981-04-17 Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5810081A JPS6011968B2 (en) 1981-04-17 1981-04-17 Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer

Publications (2)

Publication Number Publication Date
JPS57172912A JPS57172912A (en) 1982-10-25
JPS6011968B2 true JPS6011968B2 (en) 1985-03-29

Family

ID=13074532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5810081A Expired JPS6011968B2 (en) 1981-04-17 1981-04-17 Crosslinking treatment method for ethylene/vinyl ester copolymer-vinyl chloride graft copolymer

Country Status (1)

Country Link
JP (1) JPS6011968B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03108793U (en) * 1990-02-22 1991-11-08

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9725306D0 (en) * 1997-11-28 1998-01-28 Cableship Ltd Cable management system
US10059814B2 (en) * 2014-02-13 2018-08-28 Sika Technology Ag Method for producing ready-to-use soft PVC films or profiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03108793U (en) * 1990-02-22 1991-11-08

Also Published As

Publication number Publication date
JPS57172912A (en) 1982-10-25

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