JPS5893717A - Potting agent for electrical insulation - Google Patents

Potting agent for electrical insulation

Info

Publication number
JPS5893717A
JPS5893717A JP56192148A JP19214881A JPS5893717A JP S5893717 A JPS5893717 A JP S5893717A JP 56192148 A JP56192148 A JP 56192148A JP 19214881 A JP19214881 A JP 19214881A JP S5893717 A JPS5893717 A JP S5893717A
Authority
JP
Japan
Prior art keywords
component
plasticizer
polyol
weight
electrical insulation
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
JP56192148A
Other languages
Japanese (ja)
Other versions
JPS6329885B2 (en
Inventor
Kazunori Toojima
一則 遠嶋
Akinori Yamada
山田 明則
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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Priority to JP56192148A priority Critical patent/JPS5893717A/en
Publication of JPS5893717A publication Critical patent/JPS5893717A/en
Publication of JPS6329885B2 publication Critical patent/JPS6329885B2/ja
Granted legal-status Critical Current

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  • Polyurethanes Or Polyureas (AREA)
  • Organic Insulating Materials (AREA)

Abstract

PURPOSE:Two-component potting agent having a low viscosity and being excellent in castability, thermal cycling resistance and electrical insulation, comprising a solution containing a specified polyol component and a flame retardant, and another solution containing a low-volatile isocyanate component and a plasticizer. CONSTITUTION:A two-component potting agent is prepared by combining solution A containing a polyol component (a) consisting of 65-95wt% 1,4-polybutadiene polyol, number average MW of 500-8,000, having OH groups on both terminals and 5-35wt% castor oil and a flame retardant (b) as essential components and a short-chain polyol (c) and a plasticizer (d) as optional components, with solution B containing a low-volatile isocyanate component (a) selected from the group consisting of a polyisocyanate compound and its dimer and a plasticizer (b) as essential components. As the flame retardants used, there are modified red phosphorus, antimony oxides, etc. As the plasticizers, there are phosphate ester, organic carboxylate esters, etc.

Description

【発明の詳細な説明】 本発明はポリウレタン系二液型電気絶縁用ボッティング
剤に関し、さらに詳しくは、電気絶縁性、耐冷熱サイク
ル性、難燃性、注型性などに優れた二液型電気絶縁用ボ
ッティング剤に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polyurethane-based two-component electrical insulation botting agent, and more specifically, a two-component potting agent that has excellent electrical insulation properties, cold and heat cycle resistance, flame retardance, castability, etc. This invention relates to a botting agent for electrical insulation.

従来、高圧コイル部品々どの電気絶縁用ボッティング剤
としてエポキシ樹脂、シリコン樹脂などが用いられてき
たが、最近これらの材料の代りにポリウレタン樹脂が注
目されており、その具体例としてポリブタジェン系ポリ
オールをポリオール成分とする材料(例えば特開昭55
−62918号)、ヒマシ油またはその銹導体をポリオ
ール成分とする材料(例えば米国特許第3362.92
1号)かどが知られている。
Traditionally, epoxy resins, silicone resins, etc. have been used as electrical insulating potting agents for high-voltage coil parts, but recently polyurethane resins have been attracting attention as an alternative to these materials. Materials used as polyol components (for example, JP-A-55
-62918), materials containing castor oil or its rust conductor as a polyol component (e.g., U.S. Pat. No. 3362.92);
No. 1) The corner is known.

とわらの材料のうち、前者の場合には耐冷熱サイクル性
(す々わち低温及び高温での〈シ返し試験においてクラ
ックが発生【7にくいこと)や電気絶縁特性かどの面で
優れた性能を有しているが、概して高粘度のため注型作
業性に劣9、また硬化物の表面に粘着性が残存するため
ほこり力どが付着して電気絶縁特性を横ったね、製品同
志が密着する等の欠点がある。
Among Towara materials, in the case of the former, it has excellent performance in terms of cold and heat cycle resistance (it is difficult to generate cracks in the reversing test at low and high temperatures) and electrical insulation properties. However, due to its generally high viscosity, casting workability is poor9, and the adhesiveness remaining on the surface of the cured product attracts dust and dirt, which deteriorates the electrical insulation properties. There are drawbacks such as sticking together.

他方、後者の場合には低粘度で良好な注型作業性を有し
、且つ良好な電気絶縁性を有しているが。
On the other hand, the latter has low viscosity, good casting workability, and good electrical insulation properties.

耐冷熱サイクル性や接着性などの面で必ずしも充分とは
言えなかった。
It could not be said that they were necessarily sufficient in terms of cold and heat cycle resistance, adhesive properties, etc.

またポリオール成分としてポリブタジェン系ポジオール
とヒマシ油を併用した材料も知られているが、この場合
にF!両酸成分相溶性が充分でないため一方の成分をプ
レポリマー化しておくのが通常であり、そのため低粘度
の注型材料を得ることは困難であった。
Also, materials that use a combination of polybutadiene posiol and castor oil as polyol components are also known, but in this case, F! Since the compatibility between both acid components is insufficient, one component is usually made into a prepolymer, which makes it difficult to obtain a low-viscosity casting material.

そこで本発明者らは従来技術のかかる欠点を克服すべく
鋭意検討を進めた結果、L4−ポリブタジェン系ポリオ
ールとヒマシ油が一定の範囲内であわは相溶するという
現象に着目し、この現象番有効に活用することによって
本発明を完成するに到った。
The inventors of the present invention conducted intensive studies to overcome these drawbacks of the prior art, and as a result, they focused on the phenomenon that L4-polybutadiene polyol and castor oil are compatible with each other within a certain range. The present invention has been completed by making effective use of it.

而して本発明の主な目的は、低粘度で注型性に優れ、か
つ耐冷熱サイクル性、電気絶縁性、難炉性に優れた電気
絶縁用二液型ポツティング剤を提供することにあり、他
の目的は安定性、安全性に優れた電気絶縁用二液型ボッ
ティング剤を提供することにある。
The main object of the present invention is to provide a two-component potting agent for electrical insulation that has low viscosity, excellent castability, and excellent cold and heat cycle resistance, electrical insulation properties, and furnace resistance. Another object of the present invention is to provide a two-component botting agent for electrical insulation with excellent stability and safety.

かかる本発明の目的は、L4−ポリブタジェン系ポリオ
ール65〜95重量%とヒマシ油5〜35重量−から放
尿ポリオール成分(緻)及び難燃剤(blを必須成分と
し短鎖ポリオ−、ルtc+及び可塑剤(dlを任意成分
として含有するA液と、ポリイソシアネート化合物(・
)及びそのダイマーから選択される低揮発性インシアネ
ート成分(・)及び可塑剤(flを必須成分として含有
するB液を組み合せて電気絶縁用二液型ボッティング剤
とすることによって達成される。
The purpose of the present invention is to obtain a urine polyol component (fine) and a flame retardant (with BL as an essential component, short chain polyol, LTC+ and plasticizer from 65 to 95% by weight of L4-polybutadiene polyol and 5 to 35% by weight of castor oil). A solution containing dl as an optional component and a polyisocyanate compound (.
This is achieved by combining a low-volatility incyanate component (.) selected from ) and its dimer and a B solution containing a plasticizer (fl) as an essential component to form a two-component botting agent for electrical insulation.

本発明のA液として用いるポリオール成分(思)は、数
平均分子量が500〜5ooo、好ましくは1000〜
5000で両末端に水酸基を有するL4−ポリブタジェ
ン系ポリオール65〜95重f%、好ましくけ70〜9
0重量%とヒマシ油5〜35重量%、好まIAは10〜
30重量%の混合物である。
The polyol component used as liquid A of the present invention has a number average molecular weight of 500 to 500, preferably 1000 to 500.
5000, L4-polybutadiene polyol having hydroxyl groups at both ends 65-95% by weight, preferably 70-9
0% by weight and castor oil 5-35% by weight, preferably IA is 10-35% by weight
It is a 30% by weight mixture.

この際、ヒマシ油の量が51tf*未満であると高粘度
で注型作業性に劣るほか硬化物の表面にべたつきが残り
、逆にヒマシ油が35重量−を越えると粘度は低下する
が、両者の相溶性が不充分なため貯蔵安定性に劣り、機
械的強度の低下をきたす。
At this time, if the amount of castor oil is less than 51 tf*, the viscosity will be high and the casting workability will be poor, and the surface of the cured product will remain sticky.On the other hand, if the amount of castor oil exceeds 35 tf*, the viscosity will decrease. Due to insufficient compatibility between the two, storage stability is poor and mechanical strength is reduced.

用いられる1、4−ポリブタジェン系ボリオールハフタ
ジエンを主成分とするものでおれはホそポリマーであっ
ても、またインブレン、アクリロニトリル、スチレンな
どのごときコモノマーとのコポリマーであってもよく、
その具体例としてポリブタジェン系液状ゴムR−45H
T、R−45M。
The 1,4-polybutadiene polyol used is mainly composed of haftadiene, and may be a homopolymer or a copolymer with a comonomer such as inbrene, acrylonitrile, styrene, etc.
As a specific example, polybutadiene liquid rubber R-45H
T, R-45M.

CB−15,CN−15(いずれも^RCO・ケミカル
社製)などが挙げられる。オた他方の成分であるヒマシ
油本従来から−ボリー゛ウレタン用に使用さねているも
のであれば格別制限されず、その具体例としてURIC
U−30,URICLAY。
Examples include CB-15 and CN-15 (both manufactured by RCO Chemical Co.). Castor oil, which is the other ingredient, is not particularly limited as long as it has not been traditionally used for polyurethane.
U-30, URICLAY.

旧目C4IA(いずわも伊藤製油社製)力どが例示され
る。
An example is the old C4IA (manufactured by Izuwamo Ito Oil Co., Ltd.).

A液には他の必須成分と1.て難燃剤(blを配合する
ことが必要である。この難燃剤としては硬化物に所望の
難燃性を付与しうるものであわばいすねでもよく、その
具体例として、改質赤リン系、アンチモン酸化物系、モ
リブデン化合物系、硼素化合物系、有機ハロゲン化合物
系、リン酸エステル系、金属水酸化物系などの難燃剤が
例示される。
Solution A contains other essential ingredients and 1. It is necessary to incorporate a flame retardant (BL) into the cured product.This flame retardant may be any flame retardant that can impart the desired flame retardancy to the cured product.Specific examples thereof include modified red phosphorus, Examples include antimony oxide-based, molybdenum compound-based, boron compound-based, organic halogen compound-based, phosphoric acid ester-based, metal hydroxide-based flame retardants.

かかる難燃剤の配合量は難燃剤の種類や要求性能に応じ
て必ずし本一定ではなく、そのためA液の注型作業性を
抽わない範囲内で適宜選択されるが、難燃剤として赤リ
ン粉末と水酸化アルミニウムを併用する場合にはポリオ
ール成分(attooz量部尚り赤リン粉末1〜20重
量部、好ましくけ3〜151i11部、水酸化アルミニ
ウム10〜100重1部、好ましくは20〜70重量部
とするのが適切であり、このような配合を採用すること
によって経済的に1つ注型作業性を損わずに高度の難燃
性を付与することができる。
The blending amount of such flame retardant is not necessarily constant depending on the type of flame retardant and required performance, and therefore it is selected as appropriate within a range that does not affect the casting workability of liquid A. When powder and aluminum hydroxide are used in combination, polyol components (attooz parts include red phosphorus powder 1 to 20 parts by weight, preferably 3 to 151 parts by weight, 1 part by weight to aluminum hydroxide 10 to 100 parts by weight, preferably 20 to 70 parts by weight) It is appropriate to use parts by weight, and by adopting such a formulation, it is possible to economically provide a high degree of flame retardancy without impairing casting workability.

またA液には所望により短鎖ポリオール(cl及び可塑
剤(d)が配合される 短鎖ポリオールの具体例として
はニーエチル−λ3−ヘキサンジオール。
In addition, a short chain polyol (cl) and a plasticizer (d) may be blended in the A liquid as desired. A specific example of the short chain polyol is nee-ethyl-λ3-hexanediol.

N、N−ビス(2−ヒドロキシプロピル)アニリン、L
2.6−ヘキサンドリオール、グリセリンなどのごとき
短鎖ジオール及び殻鎖゛トリオールが例示され、これら
の短鎖ポリオールな配合することによって硬化物の硬度
を増し機械的強度や耐冷熱サイクル性を向上させること
ができる。しかし、その配合量を過度に多くすると硬く
なりすぎ耐冷熱サイクル性を損なう傾向があるので、そ
の配合量はポリオール成分(ml 100重量部当り3
01i景部以下、好ま【〜くけ5〜201i量部とする
のが適切である。
N, N-bis(2-hydroxypropyl)aniline, L
2. Short chain diols and shell chain triols such as 6-hexandriol and glycerin are examples, and by blending these short chain polyols, the hardness of the cured product is increased and the mechanical strength and cold/heat cycle resistance are improved. can be done. However, if the amount is too large, it becomes too hard and tends to impair cold and heat cycle resistance.
It is appropriate to set the amount below 01i part to 5 to 201i part.

また可塑剤fdlの具体例としてはリン酸エステル系、
有機カルボン酸エステル系、プロセス油系ガどの可塑剤
が例示され、これらを適宜選択して配合することにより
A液を低粘度化し、かつA液の安定性、注型性の向上を
図ることができる。とくに硬化物に高度の難燃性が要求
される場合には難燃性を備えた可塑剤、例りげリン酸エ
ステル系の可塑剤を用いることが望ましく、なかで本ポ
リオール成分との相溶性の面でトリクレジルホスフェー
トがもつとも賞月される。可塑剤(d)の配合量は適宜
選択されるが、通常はポリオール成分(a)100重量
部当り30重量部以下であり、なかでも5〜20]i1
部が好適である。
Specific examples of the plasticizer fdl include phosphate esters,
Examples include organic carboxylic acid ester-based plasticizers, process oil-based plasticizers, etc. By appropriately selecting and blending these plasticizers, it is possible to lower the viscosity of the A liquid and improve the stability and castability of the A liquid. can. In particular, when a high degree of flame retardancy is required for the cured product, it is desirable to use a flame retardant plasticizer, such as a phosphoric acid ester plasticizer, which is compatible with the present polyol component. Tricresyl phosphate is also praised for its properties. The blending amount of the plasticizer (d) is selected as appropriate, but is usually 30 parts by weight or less per 100 parts by weight of the polyol component (a), especially 5 to 20]i1
part is preferred.

一方、本発明で用いられるB液は低揮発性インシアネー
ト成分telと可塑剤(flを必須成分とする本のであ
る。ここで[低揮発性インシアネート成分」とは50℃
における蒸気圧が601 wail以下のプレポリマー
化されていかいポリイソシアネート化合物、そのダイマ
ーまたはそれらの混合物をさし、その具体例と【2て、
例えばジフェニルメタン−44I−ジイソシアネート、
そのシクロ付加体、ポリフェニルメタンポリイソシアネ
ート、トリレンジイソシアネートのシクロ付加体かどが
例示される。
On the other hand, the B liquid used in the present invention has a low-volatile incyanate component tel and a plasticizer (fl) as essential components.
Refers to prepolymerized polyisocyanate compounds, dimers thereof, or mixtures thereof having a vapor pressure of 601 wail or less, and specific examples thereof:
For example diphenylmethane-44I-diisocyanate,
Examples thereof include cycloadducts thereof, polyphenylmethane polyisocyanate, and cycloadducts of tolylene diisocyanate.

しかし、一般に賞月されているトリレンジイソシアネー
トのような揮発性の大きな化合物は安全衛生上の見地か
ら使用することができない。
However, highly volatile compounds such as tolylene diisocyanate, which is generally prized, cannot be used from the standpoint of safety and hygiene.

本発明においてはとわらのポリイソシアネート成分(e
lを可塑剤(flと混合することによってB液が調製さ
れる。用いられる可塑剤は前記((11成分として用い
られるものと同−範ちゅうのものでよく、とくに難燃可
塑剤が賞月される。かかる可塑剤の配合量は通常(・)
成分100重量部当抄1o重量部以上、好ましくは20
〜80重量部であり、可塑剤を配合することによって注
型作業性を向上させ、かつB液の貯蔵安定性、とくに低
温における貯蔵安定性を改良することができる。
In the present invention, the straw polyisocyanate component (e
Liquid B is prepared by mixing 1 with a plasticizer (fl). The amount of such plasticizer is usually (・)
100 parts by weight of ingredients 10 parts by weight or more, preferably 20 parts by weight
The amount is 80 parts by weight, and by adding a plasticizer, it is possible to improve the casting workability and improve the storage stability of liquid B, especially the storage stability at low temperatures.

かくして調製されたA液とB液はいずれも低粘度の液体
であり、常法に従って容易に混合し漏電遮断機、自動車
電装品、コンデンサー、イグナイターがどのごとき電気
部品の注型用に使用することができる。この際、両液の
配合比率は適宜選択すわばよいが、通常はB液のイソシ
アネート基1邑量に対しA液の活性水素が07〜12当
量の範囲で参り、?!L合物の粘”一度(25℃)が3
000センチボイズ以下とがるように配合することが好
ましい。
The thus prepared liquids A and B are both low-viscosity liquids, and can be easily mixed according to conventional methods and used for casting electrical parts such as earth leakage circuit breakers, automobile electrical components, capacitors, and igniters. I can do it. At this time, the blending ratio of both liquids may be selected as appropriate, but usually the active hydrogen of liquid A is in the range of 0.7 to 12 equivalents per isocyanate group of liquid B. ! The viscosity of the L compound once (25℃) is 3
It is preferable to blend it so that it has a sharpness of 000 centivoise or less.

かかる本発明によれば、A液及びIt液の安定性や注型
性に優れたボッ子インク材料が得られる。
According to the present invention, a bokko ink material having excellent stability and castability of the A liquid and the It liquid can be obtained.

この材料の硬化物は適度の機械的強度を有しておね、ま
た電気絶縁特性、耐冷熱サイクル性、難燃性などの面で
優れた性能を有している。
The cured product of this material has appropriate mechanical strength, and also has excellent performance in terms of electrical insulation properties, cold/heat cycle resistance, flame retardance, etc.

以下に実施例をあけて本発明を更KW細に観測する。な
お、実施例中の部及びチはすべて重量基準である。
The present invention will be observed in more detail with reference to Examples below. Note that all parts and parts in the examples are based on weight.

実施例t L4−ポリブタジェンジオール(商品名R−4511T
、ARCOケミカル社製、分子量2800)、ヒマシ油
(商品名URICH−30水酸基価160■K OH/
 fl、伊藤製油社製)、N、N−ビス(2−ヒドロキ
シプロピル)アニリン(商品名工5oaoIC−100
、化成アップジョン社製)、トリクレジルホスフェート
(商品名TCP、ストーファケミカル社製)、水酸化ア
ルミニウム(商品名ハイジライ)H−321、昭和金属
工業社製)及び改質赤リン(商品名ノーバレット$ 1
20.燐化学工業社製)を第り表に示す配合処方に従っ
て音素雰囲気下の密閉容器中で30分間よく攪拌するこ
とによシA液をv!41JIt、た。このA液を直径1
8■の試験管に入れ25℃で1週間放置したのち、相分
離の有無、難燃剤の沈降の有無を観察4した。結果を第
1表に示す。
Example t L4-polybutadiene diol (trade name R-4511T
, manufactured by ARCO Chemical Co., molecular weight 2800), castor oil (trade name URICH-30 hydroxyl value 160 K OH/
fl, manufactured by Ito Oil Co., Ltd.), N,N-bis(2-hydroxypropyl)aniline (trade name: 5oaoIC-100
, manufactured by Kasei Upjohn Co., Ltd.), tricresyl phosphate (trade name TCP, manufactured by Stouffer Chemical Co., Ltd.), aluminum hydroxide (trade name Heijirai H-321, manufactured by Showa Metal Industry Co., Ltd.), and modified red phosphorus (trade name No bullet $1
20. (manufactured by Rin Kagaku Kogyo Co., Ltd.) according to the formulation shown in Table 1, and stirred well for 30 minutes in a closed container under a phonetic atmosphere to prepare liquid A. 41 JIt, ta. This A liquid has a diameter of 1
The mixture was placed in a 8-inch test tube and left at 25°C for one week, and then observed for the presence or absence of phase separation and the presence or absence of precipitation of the flame retardant. The results are shown in Table 1.

(実験番号1−4)にけ貯蔵安定性に劣ることがわかる
(Experiment No. 1-4) It can be seen that the storage stability is inferior.

実施例2 ジフェニルメタン−44′−ジイソシアネート(商品名
イソナート143 L、化成アップジョン社製、50℃
における蒸気圧QO015mH& )100部に前記の
トリクレジルホスフェートを所定量混合してB液とし、
このB液を一5℃で1ケ月間放置して結晶析出の有無を
観察した。比較のため前記のL4−ポリブタジェンジオ
ール4部とトリレンジイソシアネート1部を60℃で8
時間反応させて得たプレポリマー(粘度214000 
 センチボイズ/25℃、イソシアネート基含量9チ)
についても同様にして試験を行い、結晶析出の有−無を
観察した。結果を第2表に示す。
Example 2 Diphenylmethane-44'-diisocyanate (trade name Isonato 143 L, manufactured by Kasei Upjohn Co., Ltd., 50°C
A predetermined amount of the above-mentioned tricresyl phosphate is mixed with 100 parts of vapor pressure QO015 mH & ) to prepare liquid B,
This B solution was allowed to stand at -5°C for one month, and the presence or absence of crystal precipitation was observed. For comparison, 4 parts of L4-polybutadiene diol and 1 part of tolylene diisocyanate were mixed at 60°C.
Prepolymer (viscosity: 214,000
centiboise/25°C, isocyanate group content 9cm)
A test was also conducted in the same manner, and the presence or absence of crystal precipitation was observed. The results are shown in Table 2.

第2表 この結果から、可塑剤を用いかい場合(実験番号2−1
)には貯蔵安定性が極端に劣り、またプレポリマー化し
た場合(実験番号2−4)にも貯蔵安定性に劣ることが
わかる。
Table 2 From this result, when using a plasticizer (experiment number 2-1
) has extremely poor storage stability, and when it is made into a prepolymer (experiment number 2-4), the storage stability is also found to be poor.

実施例3 実施例1で調製した各種A液と実施例2で調製したB液
(!1−3)を水酸基/イソシアネJト基−LO5(重
量比)となるように混合し、脱泡したのち50℃で8時
間加熱して試験片を作成した。
Example 3 Various A liquids prepared in Example 1 and B liquids (!1-3) prepared in Example 2 were mixed so that the ratio was hydroxyl group / isocyanate group -LO5 (weight ratio), and defoamed. Thereafter, it was heated at 50° C. for 8 hours to prepare a test piece.

混合物の注型性、硬作物の物性につき所定の方法−で評
価し、その結果を第3表に示した。
The castability of the mixture and the physical properties of hard crops were evaluated using predetermined methods, and the results are shown in Table 3.

*1市販電り部品をケースに入れA液、B液の混合物3
0gを注型17、その所用時間を測定。
*1 Place commercially available electrical parts in a case and mix 3 with liquid A and liquid B.
Cast 0g into mold 17 and measure the time required.

025秒り内 △:5〜10秒 ×:10秒以上*2硬
化物を1に9の荷重で張り合わせ、全く接着しないもの
を○、自重で3秒以上剥離[7ない本のを×で表示。
Within 0.25 seconds △: 5 to 10 seconds ×: 10 seconds or more .

牢3  A8TM  D−2240゜ *4  JI8−に−6911゜ 卒5100℃で1時間、−30℃で1時間の冷熱サイク
ルテスト。
Prison 3 A8TM D-2240° *4 JI8- to -6911° Cold-heat cycle test at 5100°C for 1 hour and -30°C for 1 hour.

O:10回以上 △:5S10回 ×:5回未満本6U
L−94Vテスト。 ○: 94 V@合格実施例4 実施例1で得たA液(A−3)76部と実施例2で得た
B液(B−2)24部を使用すること以外は実施例3と
同様にして試験を行った。その結果、混合物の粘度は2
000センチボイズ、注型性は○、硬度45A1体積固
有抵抗Z 5 X 1014Ω1、表面状態、冷熱サイ
クル性、難燃性はいずれも○であった。
O: 10 times or more △: 5S 10 times ×: Less than 5 times 6U
L-94V test. ○: 94 V @ Pass Example 4 Same as Example 3 except that 76 parts of liquid A (A-3) obtained in Example 1 and 24 parts of liquid B (B-2) obtained in Example 2 were used. Tests were conducted in the same manner. As a result, the viscosity of the mixture is 2
000 centivoise, castability was ○, hardness was 45A1, volume resistivity was Z 5 × 1014 Ω1, and surface condition, thermal cycleability, and flame retardancy were all ○.

Claims (1)

【特許請求の範囲】[Claims] L  L4−ポリブタジェン系ポリオール65〜95重
量%とヒマシ油5〜35重量%から成るポリオール成分
(−及び離燃剤(blを必須成分とし短鎖ポリオール(
gl及び可塑剤(dlを任童成分として含有するA液と
、ポリイソシアネート化合物及びそのダイマーから選択
される低揮発性インシアナート成分(−及び可塑剤(r
lを必須成分として含有するB液とからなる電気絶縁用
二液型ボッティング剤。
L L4-Polyol component (-) consisting of 65-95% by weight of polybutadiene polyol and 5-35% by weight of castor oil and a flame retardant (BL) as an essential component, short-chain polyol (
Liquid A containing gl and a plasticizer (dl) as a component, and a low-volatility inocyanate component selected from polyisocyanate compounds and dimers thereof (- and a plasticizer (r).
A two-component botting agent for electrical insulation, consisting of a B component containing L as an essential component.
JP56192148A 1981-11-30 1981-11-30 Potting agent for electrical insulation Granted JPS5893717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56192148A JPS5893717A (en) 1981-11-30 1981-11-30 Potting agent for electrical insulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56192148A JPS5893717A (en) 1981-11-30 1981-11-30 Potting agent for electrical insulation

Publications (2)

Publication Number Publication Date
JPS5893717A true JPS5893717A (en) 1983-06-03
JPS6329885B2 JPS6329885B2 (en) 1988-06-15

Family

ID=16286493

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56192148A Granted JPS5893717A (en) 1981-11-30 1981-11-30 Potting agent for electrical insulation

Country Status (1)

Country Link
JP (1) JPS5893717A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115354A (en) * 1982-12-21 1984-07-03 Yokohama Rubber Co Ltd:The Urethane mixture
WO2012020029A1 (en) 2010-08-12 2012-02-16 Bayer Materialscience Ag Polyurethane composition for integral skin foam
JP5568187B1 (en) * 2014-01-10 2014-08-06 第一工業製薬株式会社 Polyurethane resin composition
WO2016009716A1 (en) * 2014-07-15 2016-01-21 第一工業製薬株式会社 Polyurethane resin composition
JP2016020438A (en) * 2014-07-15 2016-02-04 第一工業製薬株式会社 Polyurethane resin composition
JP2016020439A (en) * 2014-07-15 2016-02-04 第一工業製薬株式会社 Polyurethane resin composition
CN112724363A (en) * 2020-12-28 2021-04-30 山东一诺威聚氨酯股份有限公司 Polyurethane pouring sealant for submarine cable pouring and preparation method thereof
US11387511B1 (en) 2018-02-16 2022-07-12 H.B. Fuller Company Electric cell potting compound and method of making

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275190A (en) * 1988-09-09 1990-03-14 Matsushita Electric Ind Co Ltd High-frequency heating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487737A (en) * 1977-12-26 1979-07-12 Hitachi Chem Co Ltd Resin composition for anticorrosive urethane coating
JPS5562918A (en) * 1978-11-01 1980-05-12 Sanyurejin Kk Urethane resin composition
JPS55139422A (en) * 1979-04-18 1980-10-31 Mitsubishi Electric Corp Curable polymer composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487737A (en) * 1977-12-26 1979-07-12 Hitachi Chem Co Ltd Resin composition for anticorrosive urethane coating
JPS5562918A (en) * 1978-11-01 1980-05-12 Sanyurejin Kk Urethane resin composition
JPS55139422A (en) * 1979-04-18 1980-10-31 Mitsubishi Electric Corp Curable polymer composition

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115354A (en) * 1982-12-21 1984-07-03 Yokohama Rubber Co Ltd:The Urethane mixture
JPS637567B2 (en) * 1982-12-21 1988-02-17 Yokohama Rubber Co Ltd
WO2012020029A1 (en) 2010-08-12 2012-02-16 Bayer Materialscience Ag Polyurethane composition for integral skin foam
JP5568187B1 (en) * 2014-01-10 2014-08-06 第一工業製薬株式会社 Polyurethane resin composition
WO2015104918A1 (en) * 2014-01-10 2015-07-16 第一工業製薬株式会社 Polyurethane resin composition
WO2016009716A1 (en) * 2014-07-15 2016-01-21 第一工業製薬株式会社 Polyurethane resin composition
JP2016020438A (en) * 2014-07-15 2016-02-04 第一工業製薬株式会社 Polyurethane resin composition
JP2016020439A (en) * 2014-07-15 2016-02-04 第一工業製薬株式会社 Polyurethane resin composition
CN106661182A (en) * 2014-07-15 2017-05-10 第工业制药株式会社 Polyurethane resin composition
US11387511B1 (en) 2018-02-16 2022-07-12 H.B. Fuller Company Electric cell potting compound and method of making
US11594773B2 (en) 2018-02-16 2023-02-28 H.B. Fuller Company Electric cell potting compound and method of making
CN112724363A (en) * 2020-12-28 2021-04-30 山东一诺威聚氨酯股份有限公司 Polyurethane pouring sealant for submarine cable pouring and preparation method thereof

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