JPH03227317A - Liquid epoxy resin composition - Google Patents

Liquid epoxy resin composition

Info

Publication number
JPH03227317A
JPH03227317A JP2355490A JP2355490A JPH03227317A JP H03227317 A JPH03227317 A JP H03227317A JP 2355490 A JP2355490 A JP 2355490A JP 2355490 A JP2355490 A JP 2355490A JP H03227317 A JPH03227317 A JP H03227317A
Authority
JP
Japan
Prior art keywords
epoxy resin
component
succinic anhydride
parts
bisphenol
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
JP2355490A
Other languages
Japanese (ja)
Inventor
Takashi Shimizu
敬 清水
Yoshihiro Motoki
本木 啓博
Toshio Matsuo
松尾 敏夫
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.)
Somar Corp
Original Assignee
Somar Corp
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 Somar Corp filed Critical Somar Corp
Priority to JP2355490A priority Critical patent/JPH03227317A/en
Publication of JPH03227317A publication Critical patent/JPH03227317A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the title composition suitable as sealing and casting material for electrical and electronic parts, having excellent cold heat cycle properties, electrical characteristics and water vapor resistance, comprising an epoxy resin, a specific bisphenol A type epoxy resin and alkenyl group-containing succinic anhydride. CONSTITUTION:The objective composition comprising (A) an epoxy resin (e.g. bisphenol A type epoxy resin), (B) a specific bisphenol A type epoxy resin (preferably one having about 1,000cPs/25 deg.C viscosity) shown by formula I (R<1> is H or alkyl; R<2> is alkyl) and (C) an alkenyl group-containing succinic anhydride [e.g. a compound shown by formula II (R<3> is alkenyl) such as octenylsuccinic anhydride]. The component C preferably contains a rubber-like polyol compound. The amount of the component C is preferably 15-40wt.% based on total amounts of the component A and C.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電気部品や電子部品の分野において用いて好
適な液状エポキシ樹脂組成物に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid epoxy resin composition suitable for use in the fields of electrical parts and electronic parts.

〔従来の技術及び問題点〕[Conventional technology and problems]

エポキシ樹脂は、耐熱性、耐薬品性に優れ、近年、電気
・電子部品の絶縁、保護を目的とした注型又は封止材料
として広く用いられている。
Epoxy resin has excellent heat resistance and chemical resistance, and has recently been widely used as a casting or sealing material for the purpose of insulating and protecting electrical and electronic components.

しかしながら、エポキシ樹脂を前記用途で温度変化の激
しい電気・電子部品、例えば、セラミックコンデンサー
、フォーカス抵抗、ハイブリッドIC、フライバックト
ランス等の注型材料として使用する場合、電気・電子部
品と硬化エポキシ樹脂とでは、その線膨張係数に差があ
る為に、冷熱サイクル時に部品と硬化エポキシ樹脂との
間の界面に剥離が生じたり、硬化エポキシ樹脂にクラッ
クが発生し、絶縁不良の原因になっていた。
However, when epoxy resin is used as a casting material for electrical/electronic parts subject to large temperature changes, such as ceramic capacitors, focus resistors, hybrid ICs, flyback transformers, etc., the electrical/electronic parts and the cured epoxy resin are However, due to the difference in linear expansion coefficient, peeling occurs at the interface between the component and the cured epoxy resin during cooling and heating cycles, and cracks occur in the cured epoxy resin, causing insulation failure.

そこで、これまでに、エポキシ樹脂注型部品の冷熱サイ
クル性を向上させる為に、樹脂中に充填剤を高充填させ
て硬化物の線膨張係数を低下させることや、可撓性エポ
キシ樹脂、例えばダイマー酸変性エポキシ樹脂、グリコ
ール変性エポキシ樹脂、ウレタン変性エポキシ樹脂等を
用いて硬化物の弾性率を低下させることが行われている
。またエポキシ樹脂にゴム状物質を添加して硬化に際し
ての応力を吸収することも知られている。
Therefore, in order to improve the thermal cycle performance of epoxy resin cast parts, methods have been developed to lower the linear expansion coefficient of the cured product by filling the resin with a high filler, and to improve the thermal cycle properties of epoxy resin cast parts. Dimer acid-modified epoxy resins, glycol-modified epoxy resins, urethane-modified epoxy resins, and the like have been used to lower the elastic modulus of cured products. It is also known to add rubber-like substances to epoxy resins to absorb stress during curing.

しかしながら、冷熱サイクル性を向上させるために提案
された従来のエポキシ樹脂組成物では、粘度上昇に伴う
作業性の低下や、その硬化物の絶縁性、耐湿性の低下等
の問題が残り、未だ満足し得るまでには至っていない。
However, conventional epoxy resin compositions proposed to improve thermal cycle performance remain unsatisfactory due to problems such as decreased workability due to increased viscosity and decreased insulation and moisture resistance of the cured product. I haven't reached the point where I can do it.

〔発明の課題〕[Problem of invention]

本発明は、従来技術に見られる前記問題点を解決し、冷
熱サイクル性、電気特性、耐湿性に優れた液状エポキシ
樹脂組成物を提供することをその課題とする。
An object of the present invention is to solve the above-mentioned problems found in the prior art and to provide a liquid epoxy resin composition that has excellent thermal cycleability, electrical properties, and moisture resistance.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者らは、前記課題を解決すべく鋭意研究を重ねた
結果、汎用エポキシ樹脂と、特定のビスフェノールA型
エポキシ樹脂を併用し、特定の硬化剤を用いて得た硬化
物は、冷熱サイクル性、電気特性、耐湿性に優れている
ことを見出し、本発明を完成するに至った。
As a result of extensive research to solve the above problems, the present inventors have found that a cured product obtained by using a general-purpose epoxy resin and a specific bisphenol A type epoxy resin together and using a specific curing agent can be cured by heating and cooling cycles. The present inventors have discovered that this material has excellent properties such as electrical properties, electrical properties, and moisture resistance, and have completed the present invention.

すなわち本発明によれば、エポキシ樹脂と、般式 (式中、R1は水素原子又はアルキル基、R2はアルキ
ル基である) で示されるビスフェノールA型エポキシ樹脂(以下特殊
エポキシ樹脂という)と、アルケニル基含有無水コハク
酸からなる液状エポキシ樹脂組成物が提供される。
That is, according to the present invention, an epoxy resin, a bisphenol A type epoxy resin (hereinafter referred to as special epoxy resin) represented by the general formula (wherein R1 is a hydrogen atom or an alkyl group, and R2 is an alkyl group), and an alkenyl Liquid epoxy resin compositions comprising group-containing succinic anhydride are provided.

本発明に用いられるエポキシ樹脂としては、そのエポキ
シ当量、化学構造、分子量は特に制限が無く、例えばビ
スフェノールA型エポキシ樹脂、水添ビスフェノールA
型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビ
スフェノールAD型エポキシ樹脂、環式脂肪族エポキシ
樹脂等が用いられ、これらの樹脂は単独又は混合物の形
で液状で用いられる。
The epoxy resin used in the present invention is not particularly limited in its epoxy equivalent, chemical structure, or molecular weight, and examples include bisphenol A type epoxy resin, hydrogenated bisphenol A
Type epoxy resins, bisphenol F type epoxy resins, bisphenol AD type epoxy resins, cycloaliphatic epoxy resins, etc. are used, and these resins are used alone or in the form of a mixture in liquid form.

本発明における特殊エポキシ樹脂は、前記一般式(I)
で示されるもので、その粘度は約1000UPS725
℃である。この特殊エポキシ樹脂成分は、汎用エポキシ
樹脂との合計量に対して10〜500〜50重量部くは
15〜40M量2の割合で配合することができる。
The special epoxy resin in the present invention has the general formula (I)
The viscosity is approximately 1000UPS725
It is ℃. This special epoxy resin component can be blended in an amount of 10 to 500 to 50 parts by weight or 15 to 40 M2 based on the total amount of the general-purpose epoxy resin.

本発明に用いられるアルケニル基含有無水コハク酸とし
ては、例えば次の一般式で表わされるものが用いら九る
Examples of the alkenyl group-containing succinic anhydride used in the present invention include those represented by the following general formula.

前記式中、R3はアルケニル基を示す。アルケニル基と
しては、ビニル基をはじめとした各種のものが挙げられ
るが、炭素数8〜30の直鎖又は分岐鎖状のアルケニル
基が好ましい。アルケニル基含有無水コハク酸の具体例
としては、例えば、オクテニル無水コハク酸、ドデセニ
ル無水コハク酸、オクタデセニル無水コハク酸等が挙げ
られる。これらのものは硬化剤として用いられる。また
、前記アルケニル基含有無水コハク酸には、必要に応じ
In the above formula, R3 represents an alkenyl group. Examples of the alkenyl group include various types including vinyl groups, but straight chain or branched alkenyl groups having 8 to 30 carbon atoms are preferred. Specific examples of the alkenyl group-containing succinic anhydride include octenyl succinic anhydride, dodecenyl succinic anhydride, octadecenyl succinic anhydride, and the like. These materials are used as curing agents. In addition, for the alkenyl group-containing succinic anhydride, as necessary.

本発明の目的を阻害しない範囲で、メチルテトラヒドロ
無水フタル酸、メチルへキサヒドロ無水フタル酸等の常
温で液状のポリカルボン酸を補助硬化剤として用いるこ
とができる。これらの硬化剤は、全エポキシ樹脂1当量
に対して、0.6〜1.2当量、好ましくは0.7〜1
.1当量で用いられる。重量基準で表現すると、硬化剤
成分は、全エポキシ樹脂100重量部に対し、50〜2
50重量部、好ましくは70〜200重量部の割合であ
る。
Polycarboxylic acids that are liquid at room temperature, such as methyltetrahydrophthalic anhydride and methylhexahydrophthalic anhydride, can be used as an auxiliary curing agent within a range that does not impede the object of the present invention. These curing agents are used in an amount of 0.6 to 1.2 equivalents, preferably 0.7 to 1 equivalent, per equivalent of the total epoxy resin.
.. 1 equivalent is used. Expressed on a weight basis, the curing agent component is 50 to 2 parts by weight per 100 parts by weight of the total epoxy resin.
The proportion is 50 parts by weight, preferably 70 to 200 parts by weight.

本発明の組成物には、冷熱サイクル性の向上を目的とし
て、前記硬化剤に分子量が500〜5000のゴム状ポ
リオール化合物を配合することができる。
In the composition of the present invention, a rubbery polyol compound having a molecular weight of 500 to 5,000 can be blended with the curing agent for the purpose of improving thermal cycle properties.

このポリオール成分としては、分子量800〜4000
の比較的低粘度の水酸基を末端に有するゴム状物質、例
えばポリブタジェンが好適である。また、このポリオー
ル成分は、全エポキシ樹脂100重量部に対して、5〜
60重量部、好ましくは10〜40重量部である。この
ポリオール化合物は、アルケニル基含有無水コハク酸に
添加し、80〜150℃で2〜5時間加熱して部分エス
テルとして使用できる。ポリオール化合物添加量が5重
量部未満であると、冷熱サイクル性は向上するまでに至
らず、一方60重量部を越えると、高温時の電気的特性
及び耐湿性が低下する。
This polyol component has a molecular weight of 800 to 4000.
Hydroxyl-terminated rubbery materials of relatively low viscosity, such as polybutadiene, are preferred. Moreover, this polyol component is 5 to 5 parts by weight based on 100 parts by weight of the total epoxy resin.
The amount is 60 parts by weight, preferably 10 to 40 parts by weight. This polyol compound can be used as a partial ester by adding it to alkenyl group-containing succinic anhydride and heating it at 80 to 150°C for 2 to 5 hours. If the amount of the polyol compound added is less than 5 parts by weight, the thermal cycleability will not improve, while if it exceeds 60 parts by weight, the electrical properties and moisture resistance at high temperatures will deteriorate.

本発明においては、前記成分以外に補助成分として、シ
ランカップリング剤、硬化促進剤、無機充填剤、希釈剤
、難燃剤、消泡剤、着色剤等を必要に応じて添加するこ
とができる。シランカップリング剤の添加量は、全エポ
キシ樹脂100重量部に対し0.5〜5重量部の割合で
あり、無機充填剤の添加量は、50−300重量部の割
合である。
In the present invention, in addition to the above-mentioned components, auxiliary components such as a silane coupling agent, a curing accelerator, an inorganic filler, a diluent, a flame retardant, an antifoaming agent, a coloring agent, etc. can be added as necessary. The amount of the silane coupling agent added is 0.5 to 5 parts by weight based on 100 parts by weight of the total epoxy resin, and the amount of the inorganic filler added is 50 to 300 parts by weight.

〔発明の効果〕〔Effect of the invention〕

本発明のエポキシ樹脂組成物は、エポキシ樹脂に特殊エ
ポキシ樹脂を配合するとともに、硬化剤にアルケニル基
含有無水コハク酸を用いたことにより、冷熱サイクル性
、電気特性、耐湿性にすくれたもので、電気・電子部品
の封止ないし注型材料として好適のものである。即ち、
本発明のエポキシ樹脂組成物を用いて封止又は注型処理
して得た電気・電子部品は過酷な冷熱サイクルを受けて
も、電気・電子部品と硬化樹脂膜との間に剥離を生じた
り、硬化樹脂膜にクラックを生じるようなことがない上
、高温時の電気特性、特に抵抗値低下が少なく、かつ耐
湿性に極めてすぐれている。
The epoxy resin composition of the present invention has excellent cold/heat cycle properties, electrical properties, and moisture resistance by blending a special epoxy resin with the epoxy resin and using alkenyl group-containing succinic anhydride as a curing agent. It is suitable as a sealing or casting material for electric/electronic parts. That is,
Electrical/electronic parts obtained by sealing or casting using the epoxy resin composition of the present invention do not cause peeling between the electrical/electronic parts and the cured resin film even when subjected to severe cooling and heating cycles. In addition to not causing cracks in the cured resin film, the electrical properties at high temperatures, especially the decrease in resistance value, are small, and the moisture resistance is extremely excellent.

本発明の組成物は、絶縁用接着剤としても好適なもので
ある。この場合、組成物にはチクソ性付与剤、例えば、
シリコーンオイル処理した微細シリカを全エポキシ樹脂
100重量部に対し、0.5〜10重量部の割合で無機
充填剤とともに配合し、適度のチクソ性を付与させる。
The composition of the present invention is also suitable as an insulating adhesive. In this case, the composition includes a thixotropic agent, e.g.
Fine silica treated with silicone oil is blended with an inorganic filler in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the total epoxy resin to impart appropriate thixotropy.

本発明の組成物は、一般には、エポキシ樹脂50〜90
重量Xと、前記一般式(1)で表わされる特殊エポキシ
樹脂10〜50重量%とからなる混合エポキシ樹脂成分
100重量部と、硬化剤50〜250重量部からなる2
液型のエポキシ樹脂組成物として有利に取扱われる。
The composition of the present invention generally has an epoxy resin of 50 to 90%
100 parts by weight of a mixed epoxy resin component consisting of weight
It is advantageously handled as a liquid type epoxy resin composition.

〔実施例〕〔Example〕

次に本発明を実施例によりさらに詳細に説明する。 Next, the present invention will be explained in more detail with reference to Examples.

実施例1 表−1に示す成分組成のエポキシ樹脂成分(A)と硬化
剤成分(B)とを調製した。
Example 1 An epoxy resin component (A) and a curing agent component (B) having the component compositions shown in Table 1 were prepared.

実施例2 冷熱サイクル性のより向上したエポキシ樹脂組成物とし
て、表−2に示す成分組成のエポキシ樹脂成分(A)と
硬化剤成分(Blとをgaした。
Example 2 As an epoxy resin composition with improved thermal cycleability, the epoxy resin component (A) and the curing agent component (Bl) having the component composition shown in Table 2 were used in ga.

なお、表−1、表−2中の各成分に関する具体的内容を
以下に示す。
In addition, the specific content regarding each component in Table-1 and Table-2 is shown below.

エポキシ樹脂(828) :油化シェルエポキシ社製、
製品名:エピコート8828.エポ キシ当量:188 特殊エポキシ樹脂:日本チバガイギー社製、製品名:エ
ポキシ樹脂XB4122(一般 式(1)におけるR=C,H,)、エポキシ当量:32
0 側鎖型ビスフェノールA型エポキシ樹脂:加電化工業社
製、製品名;アデカEP−400 0(下記式で表わされる)、エポ キシ当量=325 ポリプロピレングリコールエポキシ樹脂:旭電化工業社
製、製品名ニアデカED− 506、エポキシ当量:300 エポキシ樹脂(871):油化シェルエポキシ社製、製
品名:エピコート#871、エポキシ当量:430メチ
ルテトラヒドロ無水フタル酸二大日本インキ化学社製、
製品名:エピクロン −570 ドデセニル無水コハク酸:三洋化成社製、製品名:DD
SA (下記式で表わされる) アルケニル無水フタル酸:東邦化学社製、製品名:B−
30O3(下記式で表わされる) I?5 (R4,R5:炭素原子数13〜17のアルキル基)2
.4.6−トリス(ジメチルアミノメチル)フェノール
のトリー2−エチルヘキシル酸塩:日本化薬社製、製品
名:に−61B トリフェニルホスフィン:ケイ・アイ化成社製、製品名
:PP−360 結晶性シリカ:龍森社製、製品名:クリスタライトA−
1 シリコーンオイル処理微細シリカニ日本アエロジル社製
、製品名:アエロジルR 02 3−グリシドキシプロピルトリメトキシシラン:チッソ
社製、製品名:S−510 末端水酸基ポリブタジェン:出光石油化学社製、製品名
:R−15HT、分子量:1200次に実施例1、実施
例2で調製したエポキシ樹脂成分〔A]と硬化剤成分C
B)とを理論当量で配合し、100℃、5時間で硬化さ
せて、その硬化物について、■冷熱サイクル性、■高温
時の電気特性、■耐湿性を以下のようにして評価した。
Epoxy resin (828): Manufactured by Yuka Shell Epoxy Co., Ltd.
Product name: Epicote 8828. Epoxy equivalent: 188 Special epoxy resin: Manufactured by Ciba Geigy Japan, product name: Epoxy resin XB4122 (R=C, H, in general formula (1)), epoxy equivalent: 32
0 Side chain type bisphenol A type epoxy resin: Manufactured by Kadenka Kogyo Co., Ltd., product name: ADEKA EP-400 0 (represented by the formula below), epoxy equivalent = 325 Polypropylene glycol epoxy resin: Manufactured by Asahi Denka Kogyo Co., Ltd., product name: NIADEKA ED-506, epoxy equivalent: 300 Epoxy resin (871): manufactured by Yuka Shell Epoxy Co., Ltd., product name: Epicote #871, epoxy equivalent: 430 Methyltetrahydrophthalic anhydride, manufactured by Nippon Ink Chemical Co., Ltd.
Product name: Epiclon-570 Dodecenyl succinic anhydride: Manufactured by Sanyo Chemical Co., Ltd., Product name: DD
SA (represented by the following formula) Alkenyl phthalic anhydride: Manufactured by Toho Chemical Co., Ltd., product name: B-
30O3 (represented by the following formula) I? 5 (R4, R5: alkyl group having 13 to 17 carbon atoms) 2
.. 4. Tri-2-ethylhexylate of 6-tris(dimethylaminomethyl)phenol: Nippon Kayaku Co., Ltd., product name: Ni-61B Triphenylphosphine: K.I. Kasei Co., Ltd., product name: PP-360 Crystallinity Silica: Manufactured by Ryumorisha, product name: Crystallite A-
1 Silicone oil treated fine silica Nippon Aerosil Co., Ltd., product name: Aerosil R 02 3-Glycidoxypropyltrimethoxysilane: Chisso Co., Ltd., product name: S-510 Terminal hydroxyl group polybutadiene: Idemitsu Petrochemical Co., Ltd., product name: R-15HT, molecular weight: 1200 Next, the epoxy resin component [A] prepared in Example 1 and Example 2 and the curing agent component C
B) was blended in a theoretical equivalent amount and cured at 100° C. for 5 hours, and the cured product was evaluated for (1) thermal cycleability, (2) electrical properties at high temperatures, and (2) moisture resistance as follows.

その結果を表−3゜表−4に示す。The results are shown in Tables 3 and 4.

■冷熱サイクル性 JIS C−2105に準じ、5個の試験片を作成して
、試験片にクラックの入るサイクルを測定し、2段階評
価法にて評価した。
(cold/heat cycle property) Five test pieces were prepared according to JIS C-2105, and the cycles at which cracks appeared in the test pieces were measured and evaluated using a two-step evaluation method.

実施例1の評価 O:硬化物にクラックが入るサイクル数が10以上のも
の。
Evaluation of Example 1: O: The number of cycles at which cracks appeared in the cured product was 10 or more.

X:硬化物にクラックが入るサイクル数が10未満のも
の。
X: The number of cycles at which cracks appear in the cured product is less than 10.

実施例2の評価 O:硬化物にクラックが入るサイクル数が50以上のも
の。
Evaluation of Example 2: O: The number of cycles at which cracks appeared in the cured product was 50 or more.

×:硬化物にクラックが入るサイクル数が50未満のも
の。
×: The number of cycles in which cracks appeared in the cured product was less than 50.

■高温時の電気特性 実施例1の評価 JIS K6911に準じ、120℃における硬化物の
体積固有抵抗を測定し、2段階評価法にて評価した。
■Evaluation of Electrical Properties at High Temperature Example 1 According to JIS K6911, the volume resistivity of the cured product at 120°C was measured and evaluated using a two-step evaluation method.

O:体積固有抵抗が1013Ω・0m以上のもの。O: Volume resistivity is 1013Ω・0m or more.

×:体積固有抵抗が1013Ω・cm未滴のもの、実施
例2の評価 JIS K6911に準じ、100℃における硬化物の
体積固有抵抗を測定し、2段階評価法にて評価した。
×: Volume resistivity was 1013 Ω·cm. Evaluation of Example 2. The volume resistivity of the cured product at 100° C. was measured according to JIS K6911, and evaluated using a two-step evaluation method.

0:体積固有抵抗が1012Ω・Cl11以上のもの。0: Volume resistivity is 1012Ω・Cl11 or more.

×:体積固有抵抗が1012Ω・cm未溝のもの。×: Ungrooved product with volume resistivity of 1012 Ω·cm.

■耐湿性 JIS K6911に準じ、硬化物を作成し、120℃
、2気圧、湿度95%で100時間加湿した後、25°
C硬化物の体積固有抵抗を測定し、2段階評価法にて評
価した。なお実施例1,2とも同様の評価基準で評価し
た。
■Moisture resistance Create a cured product according to JIS K6911 and heat it at 120°C.
, after 100 hours of humidification at 2 atm and 95% humidity, 25°
The volume resistivity of the C cured product was measured and evaluated using a two-step evaluation method. Note that both Examples 1 and 2 were evaluated using the same evaluation criteria.

O:体積固有抵抗が1015Ω・am以上のもの。O: Volume resistivity is 1015 Ω・am or more.

X:体積固有抵抗が1015Ω・cm未滴のもの。X: Volume resistivity is 1015 Ω·cm without any drops.

表−3 9比較例を示す。Table-3 9 Comparative Examples are shown below.

表−4 9比較例を示す。Table-4 9 Comparative Examples are shown below.

Claims (2)

【特許請求の範囲】[Claims] (1)エポキシ樹脂と、一般式 ▲数式、化学式、表等があります▼ (式中、R^1は水素原子又はアルキル基、R^2はア
ルキル基である) で示されるビスフェノールA型エポキシ樹脂と、アルケ
ニル基含有無水コハク酸からなる液状エポキシ樹脂組成
物。
(1) Epoxy resin and bisphenol A type epoxy resin represented by the general formula ▲Mathematical formula, chemical formula, table, etc.▼ (In the formula, R^1 is a hydrogen atom or an alkyl group, and R^2 is an alkyl group.) and a liquid epoxy resin composition comprising alkenyl group-containing succinic anhydride.
(2)該アルケニル基含有無水コハク酸がゴム状ポリオ
ール化合物を含有する請求項1の組成物。
(2) The composition according to claim 1, wherein the alkenyl group-containing succinic anhydride contains a rubbery polyol compound.
JP2355490A 1990-01-31 1990-01-31 Liquid epoxy resin composition Pending JPH03227317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2355490A JPH03227317A (en) 1990-01-31 1990-01-31 Liquid epoxy resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2355490A JPH03227317A (en) 1990-01-31 1990-01-31 Liquid epoxy resin composition

Publications (1)

Publication Number Publication Date
JPH03227317A true JPH03227317A (en) 1991-10-08

Family

ID=12113719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2355490A Pending JPH03227317A (en) 1990-01-31 1990-01-31 Liquid epoxy resin composition

Country Status (1)

Country Link
JP (1) JPH03227317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015131915A (en) * 2014-01-14 2015-07-23 ソマール株式会社 Two-liquid type epoxy resin composition and method of producing case mold type capacitor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565472A (en) * 1979-06-15 1981-01-20 Ciba Geigy Ag Diglycidylether* its manufacture and hardening composition containing same
JPS5670023A (en) * 1979-11-12 1981-06-11 Daicel Chem Ind Ltd Curing agent for heat stable epoxy resin
JPS6248721A (en) * 1985-08-28 1987-03-03 Somar Corp Epoxy resin composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565472A (en) * 1979-06-15 1981-01-20 Ciba Geigy Ag Diglycidylether* its manufacture and hardening composition containing same
JPS5670023A (en) * 1979-11-12 1981-06-11 Daicel Chem Ind Ltd Curing agent for heat stable epoxy resin
JPS6248721A (en) * 1985-08-28 1987-03-03 Somar Corp Epoxy resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015131915A (en) * 2014-01-14 2015-07-23 ソマール株式会社 Two-liquid type epoxy resin composition and method of producing case mold type capacitor

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