JPS6327373B2 - - Google Patents
Info
- Publication number
- JPS6327373B2 JPS6327373B2 JP59270785A JP27078584A JPS6327373B2 JP S6327373 B2 JPS6327373 B2 JP S6327373B2 JP 59270785 A JP59270785 A JP 59270785A JP 27078584 A JP27078584 A JP 27078584A JP S6327373 B2 JPS6327373 B2 JP S6327373B2
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- resin composition
- component
- glycidyl ether
- present
- 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
Links
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 238000002845 discoloration Methods 0.000 description 8
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 7
- 150000004982 aromatic amines Chemical class 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- -1 imidazole compound Chemical class 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011342 resin composition Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- HHRACYLRBOUBKM-UHFFFAOYSA-N 2-[(4-tert-butylphenoxy)methyl]oxirane Chemical compound C1=CC(C(C)(C)C)=CC=C1OCC1OC1 HHRACYLRBOUBKM-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical class [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical class OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920003986 novolac Chemical class 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical class CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical class CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- VSXGXPNADZQTGQ-UHFFFAOYSA-N oxirane;phenol Chemical compound C1CO1.OC1=CC=CC=C1 VSXGXPNADZQTGQ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical class C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical class CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
Landscapes
- Epoxy Resins (AREA)
Description
〔産業上の利用分野〕
本発明は、電気部品、電子部品のコーテイング
用に適した液状エポキシ樹脂組成物に関する。
〔従来技術〕
炭素被膜抵抗体、金属被膜抵抗体などの電気、
電子部品のコーテイング剤は、エポキシ樹脂のも
のが多く使用されている。具体的にはビスフエノ
ールA型エポキシ樹脂を主成分にして、芳香族系
グリシジルエーテル、脂肪族グリシジルエーテル
を5%前後添加した主剤成分で構成されている。
充てん剤としては無機物を10〜30%(重量%、以
下同じ)を含有している。
硬化剤成分としては芳香族アミン成分と脂肪族
アミン成分の混合物もしくは、芳香族アミン成分
とイミダゾール系化合物の混合物からなつている
二液型のエポキシ樹脂が主流である。
特に、硬化剤成分は20〜35℃位での粘度上昇を
低くおさえるために、セロソルブ系溶剤、ミネラ
ルスピリツト、フタル酸エステル系可塑剤等で希
釈し、反応をおさえている。
また、芳香族アミン系、脂肪族アミン系、イミ
ダゾール系成分を用いると、酸無水物硬化剤の場
合に比較して熱変色(150℃、1000時間)が認め
られる欠点がある。しかし、150℃で10分程度の
硬化性を得るために、イミダゾール系化合物を用
いる必要がある。
〔発明の目的〕
本発明は熱変色が生ぜず、耐水性の良く、かつ
硬化速度が適正な電気部品、電子部品コーテイン
グ用のエポキシ樹脂組成物を提供することを目的
として種々検討して、完成されたものである。
〔発明の構成〕
本発明は、(1)エポキシ樹脂、(2)芳香族アミンと
して3,3′−ジエチル−4,4′−ジアミノジフエ
ニルメタン、(3)1,8−ジアザ−ビシクロ(5,
4,0)ウンデセン−7の酸塩からなることを特
徴とする液状エポキシ樹脂組成物を要旨とするも
のである。
硬化促進剤としては1,8−ジアザ−ビシクロ
(5,4,0)ウンデセン−7の酸塩類(以下、
DBU塩という)である。
例えば、フエノール塩、オクチル酸塩、オレイ
ン酸塩、パラトルエンスルフオン酸塩、ギ酸塩、
フタール酸塩、アジピン酸塩、ノボラツク塩(2
〜3量体)等が考えられる。
添加量は、エポキシ樹脂に対して1〜10%であ
る。1%未満では本発明の目的とする熱変色の防
止、耐水性の改良等の効果が少ない。10%を越え
ると、ポツトライフが短かくなり、硬化時の発熱
が高く樹脂が変色する恐れが生じてくる。DBU
塩の添加量は好ましくは4〜7%である。この範
囲において、特に速硬化で熱変色がなく、ポツト
ライフも実用上十分な長さを有している。
本発明において、芳香族アミンとして、3,
3′−ジエチル−4,4′−ジアミノジフエニルメタ
ンを使用するが、これは他の芳香族アミンと比較
してDBU塩による熱変色防止の効果が大きい。
エポキシ樹脂成分としてはビスフエノールA型
の液状エポキシ樹脂成分を主成分とし、必要に応
じて5〜10%の反応性希釈剤を添加する。反応性
希釈剤としては、ブチルグリシジルエーテル、フ
エニルグリシジルエーテル、フエノールエチレン
オキサイドグリシジルエーテル、ジブロムフエニ
ルグリシジルエーテル、アルキルグリシジルエー
テル、p−ターシヤリブチルフエニルグリシジル
エーテル等が考えられる。更に、通常無機フイラ
ーを添加する。無機フイラーは、特に限定されな
いが、シリカ、タルク等が好ましい。
また、チキソトロピー付与剤が添加される。こ
れは超微粉末シリカ、有機ベントナイト、酸化ポ
リエチレン系等が使用される。
〔発明の効果〕
本発明の液状エポキシ樹脂組成物は次のような
特徴を有している。
(1) 耐熱変色が少ない。特に芳香族アミンが3,
3′−ジエチル−4,4′−ジアミノジフエニルメ
タンであるので、DBU塩の熱変色防止の効果
が十分に発揮される。従来のものではパルス性
テストで3000サイクルで変色が生じはじめる
が、本発明では、10000サイクルでも変色が生
じない。
(2) DBU塩が潜在性の硬化剤であるため本発明
のエポキシ樹脂組成物は無溶剤タイプの樹脂組
成物とすることができる。
(3) 硬化速度が適当であり、かつポツトライフも
5時間を有するので、実用上全く問題ない。
(4) 耐湿性も十分に優れている。
〔実施例〕
第1表に示すような配合の主剤及び硬化剤を混
合し、ゲルタイム、ポツトライフ、硬化物の物性
を測定し、第2表に示す結果を得た。
[Industrial Application Field] The present invention relates to a liquid epoxy resin composition suitable for coating electrical and electronic components. [Prior art] Electrical devices such as carbon film resistors and metal film resistors,
Epoxy resins are often used as coating agents for electronic components. Specifically, it is composed of a main component containing a bisphenol A type epoxy resin as a main component, to which aromatic glycidyl ether and aliphatic glycidyl ether are added in an amount of about 5%.
The filler contains 10 to 30% (by weight, the same hereinafter) of inorganic substances. As the curing agent component, two-component epoxy resins consisting of a mixture of an aromatic amine component and an aliphatic amine component or a mixture of an aromatic amine component and an imidazole compound are mainstream. In particular, the curing agent component is diluted with cellosolve solvents, mineral spirits, phthalate ester plasticizers, etc. to suppress the reaction in order to suppress the increase in viscosity at about 20 to 35°C. Furthermore, when an aromatic amine type, aliphatic amine type, or imidazole type component is used, there is a disadvantage that thermal discoloration (150° C., 1000 hours) is observed compared to the case of an acid anhydride curing agent. However, in order to obtain curing properties at 150°C for about 10 minutes, it is necessary to use an imidazole compound. [Object of the Invention] The present invention was completed after various studies aimed at providing an epoxy resin composition for coating electrical and electronic components that does not cause thermal discoloration, has good water resistance, and has an appropriate curing speed. It is what was done. [Configuration of the Invention] The present invention provides (1) an epoxy resin, (2) 3,3'-diethyl-4,4'-diaminodiphenylmethane, (3) 1,8-diaza-bicyclo( 5,
The gist of the present invention is a liquid epoxy resin composition comprising an acid salt of 4,0) undecene-7. As a curing accelerator, 1,8-diaza-bicyclo(5,4,0)undecene-7 acid salts (hereinafter referred to as
DBU salt). For example, phenolic salt, octylate, oleate, paratoluenesulfonate, formate,
Phthalates, adipates, novolac salts (2
- trimer) etc. are considered. The amount added is 1 to 10% based on the epoxy resin. If it is less than 1%, the effects of preventing thermal discoloration and improving water resistance, which are the objectives of the present invention, will be small. If it exceeds 10%, the pot life will be shortened, heat generation will be high during curing, and the resin may discolor. DBU
The amount of salt added is preferably 4-7%. Within this range, it cures particularly quickly, does not discolor due to heat, and has a pot life long enough for practical use. In the present invention, as the aromatic amine, 3,
3'-diethyl-4,4'-diaminodiphenylmethane is used, which is more effective in preventing thermal discoloration caused by DBU salts than other aromatic amines. The epoxy resin component is mainly composed of a bisphenol A type liquid epoxy resin component, and if necessary, 5 to 10% of a reactive diluent is added. Possible reactive diluents include butyl glycidyl ether, phenyl glycidyl ether, phenol ethylene oxide glycidyl ether, dibromphenyl glycidyl ether, alkyl glycidyl ether, p-tertiary butyl phenyl glycidyl ether, and the like. Furthermore, an inorganic filler is usually added. The inorganic filler is not particularly limited, but silica, talc, etc. are preferable. Additionally, a thixotropic agent is added. For this, ultrafine powdered silica, organic bentonite, polyethylene oxide, etc. are used. [Effects of the Invention] The liquid epoxy resin composition of the present invention has the following characteristics. (1) Low heat resistance and discoloration. Especially when aromatic amines are 3,
Since it is 3'-diethyl-4,4'-diaminodiphenylmethane, the effect of preventing thermal discoloration of DBU salt is fully exhibited. With conventional products, discoloration begins to occur after 3,000 cycles in a pulse test, but with the present invention, discoloration does not occur even after 10,000 cycles. (2) Since the DBU salt is a latent curing agent, the epoxy resin composition of the present invention can be made into a solvent-free type resin composition. (3) Since the curing speed is appropriate and the pot life is 5 hours, there is no problem in practical use. (4) Moisture resistance is also sufficiently excellent. [Example] The main ingredient and curing agent in the formulation shown in Table 1 were mixed, and the gel time, pot life, and physical properties of the cured product were measured, and the results shown in Table 2 were obtained.
【表】【table】
【表】
試験方法
(1) ポツトライフ
樹脂組成物を約100g調整し、25℃の恒温槽に
放置し、初期混合物の粘度から、2倍粘度に達し
た時間をポツトライフとした。
(2) パルス性試験
JIS C−6402(炭素皮膜固定抵抗器)(6,10)
パルス特性による。
(3) ゲルタイム
150℃熱板上に樹脂組成物を混合したものを約
1gとり、ストツプウオツチにてゲル化するまで
の時間を測定した。[Table] Test method (1) Pot life Approximately 100 g of the resin composition was prepared and left in a constant temperature bath at 25°C, and the time when the viscosity reached twice the viscosity of the initial mixture was defined as the pot life. (2) Pulse test JIS C-6402 (carbon film fixed resistor) (6, 10)
Depends on pulse characteristics. (3) Gel time Approximately 1 g of the resin composition mixture was placed on a 150°C hot plate, and the time until gelation was measured using a stopwatch.
Claims (1)
ニルメタン (3) 1,8−ジアザービシクロ(5,4,0)ウ
ンデセン−7の酸塩 からなることを特徴とする液状エポキシ樹脂組成
物。[Claims] 1 (1) Epoxy resin (2) 3,3'-diethyl-4,4'-diaminodiphenylmethane (3) 1,8-diazabicyclo(5,4,0) undecene- A liquid epoxy resin composition comprising No. 7 acid salt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27078584A JPS61151231A (en) | 1984-12-24 | 1984-12-24 | Liquid epoxy resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27078584A JPS61151231A (en) | 1984-12-24 | 1984-12-24 | Liquid epoxy resin composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61151231A JPS61151231A (en) | 1986-07-09 |
JPS6327373B2 true JPS6327373B2 (en) | 1988-06-02 |
Family
ID=17490961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27078584A Granted JPS61151231A (en) | 1984-12-24 | 1984-12-24 | Liquid epoxy resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61151231A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0784513B2 (en) * | 1991-12-26 | 1995-09-13 | 日本レック株式会社 | Cured prepreg and epoxy resin composition for cured prepreg |
KR100516409B1 (en) | 1998-02-19 | 2005-09-23 | 히다치 가세고교 가부시끼가이샤 | Novel compounds, hardening accelerator, resin composition, and electronic part device |
JP4568940B2 (en) * | 1999-04-13 | 2010-10-27 | 日立化成工業株式会社 | Epoxy resin composition for sealing and electronic component device |
JP4818972B2 (en) * | 2007-03-29 | 2011-11-16 | 三菱電機株式会社 | Gas circuit breaker |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5126999A (en) * | 1974-08-29 | 1976-03-05 | Mitsubishi Electric Corp |
-
1984
- 1984-12-24 JP JP27078584A patent/JPS61151231A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5126999A (en) * | 1974-08-29 | 1976-03-05 | Mitsubishi Electric Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS61151231A (en) | 1986-07-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB852410A (en) | Improvements in and relating to curing epoxy resins | |
US3642649A (en) | Low temperature tertiary amine accelerators | |
JPS6327373B2 (en) | ||
JPS6251971B2 (en) | ||
JPH0733429B2 (en) | Epoxy resin composition | |
JPS62184012A (en) | Heat-resistant resin composition | |
JPH10114815A (en) | Epoxy resin composition and sealed semiconductor device | |
US3763098A (en) | Low temperature epoxy curing accelerators and system | |
JPS59105018A (en) | Sealing resin composition | |
JPS6011527A (en) | Epoxy resin composition | |
JPH11147939A (en) | Epoxy resin composition and semiconductor device sealed therewith | |
JPS60108418A (en) | Epoxy resin composition | |
JPH07501093A (en) | Curable sealing compound | |
JPS6040125A (en) | Epoxy curing | |
JPH10310629A (en) | Epoxy resin composition and semiconductor device sealed therewith | |
JPH05239187A (en) | Method for curing epoxy resin | |
JP3173628B2 (en) | Epoxy resin composition and cured product thereof | |
JPH10310630A (en) | Epoxy resin composition and semiconductor device sealed therewith | |
US3814764A (en) | Low temperature epoxy curing accelerators,special tertiary amine salts | |
JPH02308809A (en) | Epoxy resin composition | |
JPS6316412B2 (en) | ||
JPS6225687B2 (en) | ||
JPS62192423A (en) | Sealing resin composition | |
JPS6189222A (en) | Liquid epoxy resin composition | |
JPH05301942A (en) | Epoxy resin composition and its cured product |