JP2004115650A - Adhesive composition - Google Patents

Adhesive composition Download PDF

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JP2004115650A
JP2004115650A JP2002280893A JP2002280893A JP2004115650A JP 2004115650 A JP2004115650 A JP 2004115650A JP 2002280893 A JP2002280893 A JP 2002280893A JP 2002280893 A JP2002280893 A JP 2002280893A JP 2004115650 A JP2004115650 A JP 2004115650A
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Japan
Prior art keywords
adhesive composition
lubricating fluid
fluid
lubricating
fluid bearing
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JP2002280893A
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Japanese (ja)
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JP4265190B2 (en
Inventor
Manabu Inoue
井上 学
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ThreeBond Co Ltd
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ThreeBond Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain an adhesive composition for bonding a sealing member for sealing a lubricating fluid for a fluid bearing apparatus, which has curability not impaired even in contact with the lubricating fluid and in which the cured material of an adhesive is not swollen even in contact with the lubricating fluid and the cured material is not eluted. <P>SOLUTION: The adhesive composition for bonding the sealing member constituting the fluid bearing apparatus for rotatably supporting a revolving shaft by dynamic pressure of the lubricating fluid is an adhesive composition for sealing the lubricating fluid for a fluid bearing comprising (a) an epoxy resin containing one or more glycidyl groups in one molecule, (b) a derivative having an imidazole structure in a liquid state at 25°C alone or a mixture of two or more kinds of the derivatives and (c) an alicyclic amine alone or a mixture of two or more of the alicyclic amines. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は流体軸受け装置の潤滑用流体が漏洩しないためのシール部材を接着する接着剤組成物に関するものである。
【0002】
【従来の技術】
近年、高精度、高速性、低騒音を要求されるモーター等の各種装置において流体軸受け装置が広く用いられている。この流体軸受け装置は所定の潤滑流体に動圧を利用して回転軸を回転自在に支承するものであって、軸受け構成部材の間に形成されたラジアル隙間とスラスト隙間を含む複数の隙間を連通した片袋状流体充填部には潤滑用流体が充填され、前記ラジアル隙間にはラジアル動圧発生溝が設けられ、かつ前記スラスト隙間にはスラスト動圧発生溝が設けられ、それぞれの動圧により回転軸が安定して回転するものである。
【0003】
よって、軸受けの潤滑用流体が漏洩すると流体軸受けの潤滑効果(剛性・負荷容量)が低下し回転制度が著しく劣化し、回転軸や軸受け部が摩耗し軸受け装置が損傷してしまう。
【0004】
それだけではなく漏洩した潤滑用流体は機器自体に悪影響を及ぼすものとなる。例えば、VTR装置のヘッドモーターなどの場合磁気ヘッド部、テープが付着して磁気信号の検出の妨害を起こしたり、ハードディスク用モーターでは漏洩した潤滑用流体が直接付着しなくとも潤滑用流体から発生するガス成分が磁気ディスクに付着するだけで読みとりに問題が生じたりヘッドをクラッシュさせてしまう恐れがあった。
【0005】
流体軸受け装置のスラスト方向の支持を行うスラスト受板は軸を支持するだけでなく潤滑用流体を漏洩させないためのシール部材としても機能する。通常、スラスト受板は流体軸受け装置のスリーブの接着面に接着される。このときの接着剤としてエポキシ樹脂、紫外線硬化性樹脂などが提案されている。
【0006】
【発明が解決しようとする課題】
しかし従来の接着剤組成物では潤滑用流体への耐性が劣り、潤滑用流体と接触していると接着剤組成物が劣化したり、接着剤組成物の成分が潤滑用流体に溶出したりなどの欠点があり、接着・シール性に信頼性がなかった。
【0007】
【課題を解決するための手段】
本発明は上記欠点を克服するものであり、すなわち潤滑用流体の動圧により回転軸を回転自在に支承する流体軸受け装置を構成するシール部材を接着するための接着剤組成物であり、下記(a)〜(c)よりなる流体軸受けの潤滑用流体を封止する接着剤組成物を提供するものである。
(a)分子中に1つ以上のグリシジル基を有するエポキシ樹脂
(b)25℃において液状であるイミダゾール構造を有する誘導体の単独または2種以上の混合物
(c)脂環式アミン
【0008】
以下、本発明を詳細に説明する。本発明の(a)成分は分子中に1つ以上のグリシジル基を有するエポキシ樹脂であり、例えばビスフェノールAとエピクロルヒドリンから誘導されるジグリシジルエーテル、及びその誘導体、ビスフェノールFとエピクロルヒドリンから誘導されるジグリシジルエーテル、及びその誘導体等の所謂エピービス型液状エポキシ樹脂、多価アルコールとエピクロルヒドリンから誘導されるジグリシジルエーテル、多塩基酸とエピクロルヒドリンから誘導されるグリシジルエステル、及びその誘導体、水添ビスフェノールAとエピクロルヒドリンから誘導されるグリシジルエーテル、3,4−エポキシ−6−メチルシクロヘキシルメチル−3,4−エポキシ−6−メチルシクロヘキサンカルボキシレート、ビニルシクロヘキセンオキサイド、ビス(3,4−エポキシ−6−メチルシクロヘキシルメチル)アジペート等の脂肪族環状エポキシ、及びその誘導体、5,5’−ジメチルヒダントイン型エポキシ樹脂、トリグリシジルイソシアヌレート、イソブチレンから誘導される置換型エポキシなどがある。市販されている製品としては例えばジャパンエポキシレジン製のエピコート828、807、大日本インキ工業株式会社製のエピクロン830、835LV等が挙げられる。(a)成分は1種で用いても良いし2種以上を混合して使用しても良い。
【0009】
本発明の(b)成分は25℃において液状態のイミダゾール構造を有する誘導体であり、(a)成分の硬化剤である。(b)成分は25℃で液状であれば、特に限定はないが硬化温度が高温になるものは、あまり好ましくない。好ましくは100℃以下で硬化するものを使用することが望ましい。そのような(b)成分として例えば四国化成工業株式会社製のキュアゾール1B2MZ、2E4MZ、1B2PZ、2MZ−CN、2E4MZ−CN等が挙げらる。エポキシ樹脂に対する添加量はエポキシ樹脂100重量部に対して3〜30重量部である。
【0010】
本発明の(c)成分は脂環式アミン化合物であり分子中に脂環骨格とアミノ基を有するものである。脂環骨格とは、一般式C2n (n=3以上)で表される環状シクロ化合物や環状ビシクロ化合物、及びそれらの縮合環などが挙げられ、具体的には例えば、シクロブタン環、シクロペンタン環、シクロヘキサン環、シクロヘプタン環、シクロヘプタン環、及びシクロオクタン環などが挙げられる。またこれらの脂環化合物に橋かけ炭化水素が導入された化合物も用いることができ、具体的には、スピロヘプタン、スピロオクタンなどのスピロ環、ノルボニル環、アダマンチル環、ボルネン環、メンチル環、メンタン環などのテルペン環、ツジャン、サビネン、ツジョン、コレステリック環などのステロイド骨格、ショウノウ環、イソショウノウ環、セスキテルペン環、サントン環、ジテルペン環、トリテルペン環などが挙げられる。
【0011】
脂環式アミン化合物のアミノ基としては、一般式−N・R(RとRは水素又は炭素数1〜4の炭化水素)で表されるアミノ基、又は−(CH−N・R R (n=1〜6、RとRは水素又は炭素数1〜4の炭化水素)で表されるアミノアルキル基が挙げられる。
【0012】
前記の脂環式アミン化合物は、分子中にアミノ基の他にアルキル基、ヒドロキシル基、ヒドロキシアルキル基、又はニトロ基などから選ばれる1種またはそれ以上が脂環骨格に直接結合している化合物でもよい。
【0013】
アミノ基を分子構造に含む脂環式化合物としては、アミノシクロブタン、アミノシクロペンタン、アミノシクロヘキサン、アミノシクロヘプタン、1,2―ジアミノシクロヘキサン、1,3−ジアミノシクロヘキサン、1,4−ジアミノシクロヘキサン、アミノメチルシクロブタン、アミノメチルシクロペンタン、アミノメチルシクロヘキサン、1,2−ビス−(アミノメチル)−シクロヘキサン、1,3−ビス−(アミノメチル)−シクロヘキサン、1,4−ビス−(アミノメチル)−シクロペンタン、1,4−ビス−(アミノメチル)−シクロヘキサン、1−メチル−2,4−ジアミノシクロヘキサン、1−メチル−2,6−ジアミノシクロヘキサン、メチレン−ビス−4,4’−アミノシクロヘキサン、メチレン−ビス−2,4’−アミノシクロヘキサン、及び、ビス−(アミノメチル)−トリシクロデカン類、アミノメチルノルボルネン類、ビス−(アミノメチル)−ノルボルネン類、イソホロンジアミン類などが好ましい。これらの内、生分解性に優れ、生体毒性の少ない1,3−ビス−(アミノメチル)−シクロヘキサン、1,4−ビス−(アミノメチル)−シクロヘキサン等のシクロヘキサン環を有する脂環式化合物が特に好適である。(c)成分の含有量としては(a)成分100重量部に対して2〜10重量が好ましい。
【0014】
本発明の趣旨を損なわない範囲においてさらに重合禁止剤、増粘剤、硬化促進剤、熱安定剤、接着助剤、顔料などの成分のいくつかを加えても良い。
【0015】
本発明の接着剤組成物は(a)〜(c)成分を混合して1液性としても、(a)からなるものと(b)(c)からなるものの2液性としても良い。1液の場合は加熱により硬化することができる。2液性の場合は混合することにより常温で硬化させることもできるし、加熱により硬化促進をすることもできる。
【0016】
本発明の組成物は流体軸受けの潤滑用流体を漏洩させないためのシール部材例えば、スラスト受板の接着を行うのに適している。潤滑用流体は特に限定はないがDOPやDOSなどのフタル酸エステルに対する耐薬品性が良い。よって、潤滑用流体に接触しても接着剤組成物が膨潤したり、接着剤組成物の成分が潤滑用流体に溶け出したりすることがない。
【0017】
【発明の実施の形態】
以下、実施例および比較例をあげて本発明を説明するが、本発明はこれら実施例により何ら限定されるものではない。
【0018】
表1のとおり組成物を調製した。ただし、表中の略号は
エポキシ樹脂:835LV(大日本インキ工業株式会社製)
イミダゾール1:25℃で液状の1B2MZ(四国化成工業株式会社製)
イミダゾール2:25℃で液状の2E4MZ(四国化成工業株式会社製)
イミダゾール3:25℃で固体の2MA−OK(四国化成工業株式会社製)
硬化剤1:脂環式アミン:PACM
硬化剤2:B002(ジャパンエポキシレジン)」
硬化剤3:サンマイド328A(三和化学工業株式会社製)
である。
【0019】
調製した各種成分を流体軸受け用の接着剤に適しているかの確認として以下の試験を行った。
試験1.耐潤滑用流体性試験
潤滑用流体としてDOSを選択した。各組成物を直径1cm厚さ1cmの容器に充填し100℃で1時間加熱して硬化物を作成した。硬化物をDOS液中に浸漬し液を加熱した。100℃で1000時間加熱して、硬化物を取り出した。そのときの重量を測定し、試験前の重量と比較した。重量変化率が±0.1%以下ならば○、それ以上であれば×とした。
【0020】
試験2.潤滑用流体中での硬化性試験
潤滑用流体としてDOSを選択した。DOS液中に各組成物を液状の状態で滴下し、DOSの影響を受けずに硬化するかを確認した。DOSに溶解せずに硬化したものは○、しないものは×とした。
【0021】
試験3.アウトガス量の測定
1と同様に硬化物を作成し、抽出条件85℃×3時間でGC−MSによりn−デカン換算により測定した。アウトガス総量10ppm未満ならば○、10ppm〜100ppmならば△、100ppmより多いなら×とした
【0022】
試験4.接着力の測定
SPCCのテストピーとSDのテストピースを用いてJIS K 6850に準じて引張せん断接着強さを測定した。10MPa以上なら○、5MPa〜10MPaならば△、それ未満ならば×とした。
【0023】
その結果を表に記す。
【表1】

Figure 2004115650
【0024】
【発明の効果】
本発明は流体軸受け装置に使用される潤滑用流体に対する耐性が高い接着剤組成物であり、流体軸受け装置から潤滑用流体が漏洩しないようにシール性を確保しなければならないシール部材の接着に適したものである。すなわち、本接着剤組成物は潤滑用流体と接触しても硬化性が阻害されず、接着剤の硬化物が潤滑用流体と接触しても硬化物が膨潤することもなく、かつ、硬化物から溶出することもない。また、本接着剤組成物はアウトガスが少ないため本接着組成物を使用した流体軸受け装置を精密電子機器で使用することが可能である。また、耐ヒートサイクル性に優れるため使用時に高温になるモーターなどにも使用できる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an adhesive composition for bonding a seal member for preventing a lubricating fluid from leaking from a fluid bearing device.
[0002]
[Prior art]
In recent years, fluid bearing devices have been widely used in various devices such as motors that require high accuracy, high speed, and low noise. This fluid bearing device rotatably supports a rotating shaft using dynamic pressure on a predetermined lubricating fluid, and communicates with a plurality of gaps including a radial gap and a thrust gap formed between bearing components. The lubricating fluid is filled in the single-bag-shaped fluid filling portion, a radial dynamic pressure generating groove is provided in the radial gap, and a thrust dynamic pressure generating groove is provided in the thrust gap, and the respective dynamic pressures are provided. The rotating shaft rotates stably.
[0003]
Therefore, when the lubricating fluid of the bearing leaks, the lubricating effect (rigidity / load capacity) of the fluid bearing is reduced, the rotation accuracy is significantly deteriorated, the rotating shaft and the bearing portion are worn, and the bearing device is damaged.
[0004]
In addition, the leaked lubricating fluid adversely affects the equipment itself. For example, in the case of a head motor of a VTR device, a magnetic head portion or a tape adheres and interferes with detection of a magnetic signal. In a motor for a hard disk, a leaked lubricating fluid is generated from a lubricating fluid without directly adhering. There is a possibility that a reading problem or a head crash may occur only by the gas component adhering to the magnetic disk.
[0005]
The thrust receiving plate for supporting the fluid bearing device in the thrust direction not only supports the shaft but also functions as a seal member for preventing the lubricating fluid from leaking. Usually, the thrust receiving plate is bonded to the bonding surface of the sleeve of the fluid bearing device. Epoxy resins, ultraviolet curable resins, and the like have been proposed as adhesives at this time.
[0006]
[Problems to be solved by the invention]
However, conventional adhesive compositions have poor resistance to lubricating fluids, and when in contact with a lubricating fluid, the adhesive composition deteriorates, and components of the adhesive composition elute into the lubricating fluid. However, the bonding and sealing properties were not reliable.
[0007]
[Means for Solving the Problems]
The present invention overcomes the above-mentioned drawbacks, that is, an adhesive composition for bonding a seal member constituting a fluid bearing device that rotatably supports a rotating shaft by the dynamic pressure of a lubricating fluid. An object of the present invention is to provide an adhesive composition for sealing a lubricating fluid of a fluid bearing comprising a) to (c).
(A) an epoxy resin having one or more glycidyl groups in the molecule; (b) a single derivative or a mixture of two or more derivatives having an imidazole structure which is liquid at 25 ° C .; and (c) an alicyclic amine.
Hereinafter, the present invention will be described in detail. The component (a) of the present invention is an epoxy resin having one or more glycidyl groups in the molecule, for example, diglycidyl ether derived from bisphenol A and epichlorohydrin, and derivatives thereof, diglycidyl ether derived from bisphenol F and epichlorohydrin. So-called epbis type liquid epoxy resin such as glycidyl ether and its derivative, diglycidyl ether derived from polyhydric alcohol and epichlorohydrin, glycidyl ester derived from polybasic acid and epichlorohydrin, and derivatives thereof, hydrogenated bisphenol A and epichlorohydrin Glycidyl ether derived from 3,4-epoxy-6-methylcyclohexylmethyl-3,4-epoxy-6-methylcyclohexanecarboxylate, vinylcyclohexene oxide, bis ( Aliphatic cyclic epoxies such as 2,4-epoxy-6-methylcyclohexylmethyl) adipate and derivatives thereof, 5,5'-dimethylhydantoin type epoxy resin, triglycidyl isocyanurate, substituted epoxy derived from isobutylene, and the like. . Examples of commercially available products include Epicoat 828 and 807 manufactured by Japan Epoxy Resin, and Epicron 830 and 835LV manufactured by Dainippon Ink and Chemicals, Inc. The component (a) may be used alone or as a mixture of two or more.
[0009]
The component (b) of the present invention is a derivative having an imidazole structure in a liquid state at 25 ° C., and is a curing agent of the component (a). The component (b) is not particularly limited as long as it is liquid at 25 ° C., but those having a high curing temperature are not preferred. It is desirable to use one that cures preferably at 100 ° C. or lower. Examples of such a component (b) include Cureazole 1B2MZ, 2E4MZ, 1B2PZ, 2MZ-CN, 2E4MZ-CN manufactured by Shikoku Chemical Industry Co., Ltd. The amount added to the epoxy resin is 3 to 30 parts by weight based on 100 parts by weight of the epoxy resin.
[0010]
The component (c) of the present invention is an alicyclic amine compound having an alicyclic skeleton and an amino group in the molecule. The alicyclic skeleton includes a cyclic cyclo compound or a cyclic bicyclo compound represented by the general formula C n H 2n (n = 3 or more), a condensed ring thereof, and the like. Specifically, for example, a cyclobutane ring, cyclo Examples include a pentane ring, a cyclohexane ring, a cycloheptane ring, a cycloheptane ring, and a cyclooctane ring. Compounds in which a bridging hydrocarbon is introduced into these alicyclic compounds can also be used. Specifically, spiro rings such as spiroheptane and spirooctane, norbornyl ring, adamantyl ring, bornene ring, menthyl ring, and menthan Examples include terpene rings such as rings, steroid skeletons such as tujang, sabinene, tujon, and cholesteric rings, camphor rings, isocamphor rings, sesquiterpene rings, sandton rings, diterpene rings, and triterpene rings.
[0011]
The amino group of the cycloaliphatic amine compounds of the general formula -N · R 1 R 2 (R 1 and R 2 are a hydrocarbon having 1 to 4 carbon hydrogen or carbon) amino group represented by, or - (CH 2 ) n -N · R 3 R 4 (n = 1~6, R 3 and R 4 include an amino group represented by hydrocarbon) C1-4 hydrogen or carbon.
[0012]
The alicyclic amine compound is a compound in which one or more selected from an alkyl group, a hydroxyl group, a hydroxyalkyl group, and a nitro group in addition to an amino group in a molecule are directly bonded to an alicyclic skeleton. May be.
[0013]
Alicyclic compounds having an amino group in the molecular structure include aminocyclobutane, aminocyclopentane, aminocyclohexane, aminocycloheptane, 1,2-diaminocyclohexane, 1,3-diaminocyclohexane, 1,4-diaminocyclohexane, amino Methylcyclobutane, aminomethylcyclopentane, aminomethylcyclohexane, 1,2-bis- (aminomethyl) -cyclohexane, 1,3-bis- (aminomethyl) -cyclohexane, 1,4-bis- (aminomethyl) -cyclo Pentane, 1,4-bis- (aminomethyl) -cyclohexane, 1-methyl-2,4-diaminocyclohexane, 1-methyl-2,6-diaminocyclohexane, methylene-bis-4,4′-aminocyclohexane, methylene -Bis-2,4'-ami Cyclohexane, and bis - (aminomethyl) - tricyclodecane, amino methyl norbornenes, bis - (aminomethyl) - norbornenes, such as isophoronediamine are preferred. Of these, alicyclic compounds having a cyclohexane ring, such as 1,3-bis- (aminomethyl) -cyclohexane and 1,4-bis- (aminomethyl) -cyclohexane, which are excellent in biodegradability and have low biotoxicity, are used. Particularly preferred. The content of the component (c) is preferably 2 to 10 parts by weight based on 100 parts by weight of the component (a).
[0014]
Some components such as a polymerization inhibitor, a thickener, a curing accelerator, a heat stabilizer, an adhesion aid, and a pigment may be further added within a range not to impair the purpose of the present invention.
[0015]
The adhesive composition of the present invention may be made into a one-part composition by mixing the components (a) to (c), or a two-part composition consisting of (a) and (b) and (c). In the case of one liquid, it can be cured by heating. In the case of a two-part composition, the mixture can be cured at room temperature by mixing, and the curing can be accelerated by heating.
[0016]
The composition of the present invention is suitable for bonding a sealing member for preventing the lubricating fluid of the fluid bearing from leaking, for example, a thrust receiving plate. The lubricating fluid is not particularly limited, but has good chemical resistance to phthalic esters such as DOS and DOS. Therefore, even when the adhesive composition comes into contact with the lubricating fluid, the adhesive composition does not swell or the components of the adhesive composition do not dissolve into the lubricating fluid.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
[0018]
Compositions were prepared as shown in Table 1. However, the abbreviations in the table are epoxy resin: 835LV (manufactured by Dainippon Ink and Chemicals, Inc.)
Imidazole 1: 1B2MZ liquid at 25 ° C (Shikoku Chemicals Co., Ltd.)
Imidazole 2: 2E4MZ liquid at 25 ° C (Shikoku Chemicals Co., Ltd.)
Imidazole 3: 2MA-OK solid at 25 ° C (manufactured by Shikoku Chemical Industry Co., Ltd.)
Curing agent 1: Alicyclic amine: PACM
Curing agent 2: B002 (Japan epoxy resin) "
Curing agent 3: Sunmide 328A (manufactured by Sanwa Chemical Industry Co., Ltd.)
It is.
[0019]
The following tests were performed to confirm whether the prepared various components were suitable for an adhesive for a fluid bearing.
Test 1. DOS was selected as the lubricating fluid. Each composition was filled in a container having a diameter of 1 cm and a thickness of 1 cm, and heated at 100 ° C. for 1 hour to prepare a cured product. The cured product was immersed in a DOS solution and heated. The cured product was taken out by heating at 100 ° C. for 1000 hours. The weight at that time was measured and compared with the weight before the test. When the weight change rate was ± 0.1% or less, it was evaluated as “○”, and when it was more than that, it was evaluated as “×”.
[0020]
Test 2. Curability Test in Lubricating Fluid DOS was selected as the lubricating fluid. Each composition was dropped into the DOS liquid in a liquid state, and it was confirmed whether the composition was cured without being affected by DOS. The sample was cured without dissolving in DOS, and the sample not cured was evaluated as x.
[0021]
Test 3. A cured product was prepared in the same manner as in the measurement 1 of the outgas amount, and was measured by GC-MS under extraction conditions of 85 ° C. for 3 hours in terms of n-decane. If the total amount of outgas is less than 10 ppm, it is evaluated as ○, from 10 ppm to 100 ppm as Δ, and if more than 100 ppm, as ×.
Test 4. Measurement of Adhesive Strength Tensile shear adhesive strength was measured according to JIS K 6850 using a test piece of SPCC and a test piece of SD. If it was 10 MPa or more, it was evaluated as ○, if it was 5 MPa to 10 MPa, it was evaluated as △.
[0023]
The results are shown in the table.
[Table 1]
Figure 2004115650
[0024]
【The invention's effect】
The present invention is an adhesive composition having high resistance to a lubricating fluid used in a fluid bearing device, and is suitable for bonding a seal member that must ensure a sealing property so that the lubricating fluid does not leak from the fluid bearing device. It is a thing. That is, the present adhesive composition does not inhibit the curability even when it comes into contact with the lubricating fluid, the cured product does not swell even when the cured product of the adhesive comes into contact with the lubricating fluid, and No elution from Further, since the present adhesive composition has a small outgassing, a fluid bearing device using the present adhesive composition can be used in precision electronic equipment. In addition, since it has excellent heat cycle resistance, it can also be used for motors that become hot during use.

Claims (1)

潤滑用流体の動圧により回転軸を回転自在に支承する流体軸受け装置を構成するシール部材を接着するための接着剤組成物であり、下記(a)〜(c)よりなる流体軸受けの潤滑用流体を封止する接着剤組成物。
(a)分子中に1つ以上のグリシジル基を有するエポキシ樹脂
(b)25℃において液状態であるイミダゾール構造を有する誘導体の単独または2種以上の混合物
(c)脂環式アミン
An adhesive composition for adhering a seal member constituting a fluid bearing device that rotatably supports a rotating shaft by dynamic pressure of a lubricating fluid. The adhesive composition includes the following (a) to (c) for lubricating a fluid bearing. An adhesive composition for sealing a fluid.
(A) an epoxy resin having one or more glycidyl groups in the molecule; (b) a single derivative or a mixture of two or more derivatives having an imidazole structure which is in a liquid state at 25 ° C .;
JP2002280893A 2002-09-26 2002-09-26 Adhesive composition Expired - Fee Related JP4265190B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010002007A1 (en) * 2008-07-01 2010-01-07 株式会社スリーボンド Epoxy resin composition
WO2011027815A1 (en) 2009-09-04 2011-03-10 株式会社スリーボンド Organic el element sealing member
US8828500B2 (en) 2008-11-28 2014-09-09 Three Bond Co., Ltd. Photocurable resin composition for sealing organic EL device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010002007A1 (en) * 2008-07-01 2010-01-07 株式会社スリーボンド Epoxy resin composition
JP2010013493A (en) * 2008-07-01 2010-01-21 Three Bond Co Ltd Epoxy resin composition
CN102076805A (en) * 2008-07-01 2011-05-25 株式会社三键 Epoxy resin composition
US8828500B2 (en) 2008-11-28 2014-09-09 Three Bond Co., Ltd. Photocurable resin composition for sealing organic EL device
WO2011027815A1 (en) 2009-09-04 2011-03-10 株式会社スリーボンド Organic el element sealing member

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