JP2571816B2 - Resin composition for electrical insulation for refrigerator motor - Google Patents
Resin composition for electrical insulation for refrigerator motorInfo
- Publication number
- JP2571816B2 JP2571816B2 JP63095070A JP9507088A JP2571816B2 JP 2571816 B2 JP2571816 B2 JP 2571816B2 JP 63095070 A JP63095070 A JP 63095070A JP 9507088 A JP9507088 A JP 9507088A JP 2571816 B2 JP2571816 B2 JP 2571816B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- epoxy resin
- resin composition
- varnish
- 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 - Lifetime
Links
Landscapes
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は冷凍機のモートルのための電気絶縁用樹脂組
成物に関し、さらに詳しくは接着性、耐冷媒性などに優
れた冷凍機のモートルのための電気絶縁用樹脂組成物
（以下、ワニスと略称することがある）に関する。Description: TECHNICAL FIELD The present invention relates to a resin composition for electric insulation for a motor of a refrigerator, and more particularly, to a resin composition for a refrigerator having excellent adhesiveness and refrigerant resistance. (Hereinafter, may be abbreviated as varnish) for electrical insulation.
電気機器のコイル絶縁用として、アルキド系溶剤型ワ
ニス、不飽和ポリエステル系無溶剤型ワニス、酸無水物
硬化型エポキシワニスなどが用いられているが、最近の
電気機器の小型軽量化や使用環境の過酷化などに伴っ
て、接着性、耐薬品性、耐溶剤性、耐冷媒性などに優れ
るワニスが望まれるようになってきた。特に、冷凍機の
モートルにおいては、溶解性の高いフロン11、フロン1
2、フロン22などの冷媒中で使用されるため、耐薬品
性、耐溶剤性などに優れたエポキシ系ワニスが用いら
れ、溶解性の特に高いフロン22（以下、Ｒ−22と称す
る）を用いる場合には、優れた耐冷媒性を有するフェノ
ール樹脂硬化型エポキシワニスが用いられている。従来
のフェノール樹脂硬化型エポキシワニスとしては、特開
昭60−51716号公報および特開昭60−53525号公報に示さ
れるように、ビスフェノールＡ型エポキシ樹脂に硬化剤
としてレゾール型フェノール樹脂を用い、さらに硬化促
進剤としてイミダゾール化合物を併用したものなどがあ
る。しかしこれらワニスは、特に高温による接着力が劣
るという欠点があった。Alkyd-based solvent varnishes, unsaturated polyester-based solvent-free varnishes, and acid anhydride-curable epoxy varnishes are used for coil insulation of electrical equipment. Along with severeness, a varnish excellent in adhesiveness, chemical resistance, solvent resistance, refrigerant resistance and the like has come to be desired. In particular, in the refrigerator motor, highly soluble CFC 11 and CFC 1 are used.
2. Since it is used in a refrigerant such as Freon 22, an epoxy varnish having excellent chemical resistance and solvent resistance is used, and Freon 22 (hereinafter, referred to as R-22) having particularly high solubility is used. In such a case, a phenol resin-curable epoxy varnish having excellent refrigerant resistance is used. As a conventional phenolic resin-curable epoxy varnish, as shown in JP-A-60-51716 and JP-A-60-53525, using a resole type phenol resin as a curing agent for a bisphenol A type epoxy resin, Further, there are those using an imidazole compound in combination as a curing accelerator. However, these varnishes have a drawback that the adhesive strength particularly at high temperatures is poor.
本発明の目的は、前記従来技術を解決し、電気機器、
特に冷凍機のモートルの小型軽量化が図れ、かつ信頼性
向上に必要な接着性、耐冷媒性等に優れた電気絶縁用樹
脂組成物を提供することにある。An object of the present invention is to solve the above-mentioned conventional technology,
In particular, it is an object of the present invention to provide a resin composition for electric insulation that can reduce the size and weight of a motor of a refrigerator and is excellent in adhesiveness, refrigerant resistance and the like required for improving reliability.
本発明者は、前記問題点の解決を達成するため鋭意検
討した結果、エポキシ樹脂として、ノボラック型または
ノボラック型とビスフェノール型との混合物を用い、硬
化剤としてレゾール型フェノール樹脂、さらに硬化促進
剤としてイミダゾール化合物を併用することによって、
従来のワニスでは達成できなかった接着力と耐冷媒性の
向上が可能となることを見出した。The present inventor has conducted intensive studies to achieve the solution of the above problem, and as a result, using novolak type or a mixture of novolak type and bisphenol type as an epoxy resin, a resol type phenol resin as a curing agent, and further as a curing accelerator By using an imidazole compound in combination,
It has been found that it is possible to improve the adhesive strength and the refrigerant resistance, which cannot be achieved by the conventional varnish.
すなわち、本発明は、（Ａ）ノボラック型エポキシ樹
脂またはノボラック型エポキシ樹脂とビスフェノール型
エポキシ樹脂との混合物100重量部、（Ｂ）レゾール型
フェノール樹脂20〜100重量部および（Ｃ）一般式
（Ｉ） （R1は水素原子または炭素数１〜３のアルキル基、R2は
炭素数１〜11のアルキル基またはフェニル基）で示され
るイミダゾール化合物を、（Ａ）と（Ｂ）の総量100重
量部に対して0.05〜5.0重量部含有してなる冷凍機のモ
ートルのための電気絶縁用樹脂組成物に関する。That is, the present invention relates to (A) 100 parts by weight of a novolak type epoxy resin or a mixture of a novolak type epoxy resin and a bisphenol type epoxy resin, (B) 20 to 100 parts by weight of a resole type phenol resin, and (C) a compound represented by the general formula (I) ) (R 1 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 2 is an alkyl group or a phenyl group having 1 to 11 carbon atoms), and a total amount of (A) and (B) of 100 parts by weight The present invention relates to a resin composition for electric insulation for a motor of a refrigerator comprising 0.05 to 5.0 parts by weight of the resin composition.
本発明に用いられるノボラック型エポキシ樹脂として
は、フェノールノボラック型やクレゾールノボラック型
などが使用でき、例えばダウケミカル社製DEN−431、DE
N−438、チバ社製ECN−1280等がある。As the novolak type epoxy resin used in the present invention, phenol novolak type and cresol novolak type can be used, for example, DEN-431, DE manufactured by Dow Chemical Company
N-438 and Ciba ECN-1280.
また前記ノボラック型エポキシ樹脂と併用されるビス
フェノール型エポキシ樹脂としては、ビスフェノールＡ
型やビスフェノールＦ型などのエポキシ樹脂が使用で
き、例えばシェル化学社製Ep−828、Ep−807、Ep−100
1、Ep−1004、Ep−1007等がある。Bisphenol type epoxy resin used in combination with the novolak type epoxy resin includes bisphenol A
And epoxy resins such as bisphenol F type can be used. For example, Ep-828, Ep-807, Ep-100 manufactured by Shell Chemical Co., Ltd.
1, Ep-1004 and Ep-1007.
ノボラック型エポキシ樹脂とビスフェノール型エポキ
シ樹脂との混合物を用いる場合には、接着力および耐冷
媒性の点から混合物100重量部中、ノボラック型エポキ
シ樹脂を30重量部以上、ビスフェノール型エポキシ樹脂
70重量部以下の範囲が好ましい。When using a mixture of novolak type epoxy resin and bisphenol type epoxy resin, 30 parts by weight of novolak type epoxy resin, bisphenol type epoxy resin in 100 parts by weight of the mixture from the viewpoint of adhesive strength and refrigerant resistance
A range of 70 parts by weight or less is preferred.
また本発明において硬化剤として使用されるレゾール
型フェノール樹脂は、フェニル基１個に対してメチロー
ル基を１個以上有するフェノール樹脂であり、これらは
例えばフェノール、Ｏ−クレゾール、ｍ−クレゾール、
各種キシレノール、ビスフェノールＡ、各種ヒドロキシ
ベンゼンなどにホルムアルデヒドを過剰に添加してアル
カリ触媒で反応させて得られる。例えば、日立化成工業
社製PR−4010、PR−4020、PR−520、PR−3305等があ
る。これらのレゾール型フェノール樹脂は、前記エポキ
シ樹脂100重量部に対して20〜100重量部の範囲で用いら
れる。レゾール型フェノール樹脂が20重量部未満でも、
また100重量部を超えても接着力および対冷媒性が低下
する。The resole type phenol resin used as a curing agent in the present invention is a phenol resin having one or more methylol groups for one phenyl group, and these are, for example, phenol, O-cresol, m-cresol,
It is obtained by adding formaldehyde in excess to various xylenols, bisphenol A, various hydroxybenzenes and the like and reacting with an alkali catalyst. For example, there are PR-4010, PR-4020, PR-520 and PR-3305 manufactured by Hitachi Chemical Co., Ltd. These resol-type phenol resins are used in a range of 20 to 100 parts by weight based on 100 parts by weight of the epoxy resin. Even if the resole type phenolic resin is less than 20 parts by weight,
Further, even if it exceeds 100 parts by weight, the adhesive strength and the refrigerant resistance are reduced.
本発明において、硬化促進剤として使用される上記の
一般式（Ｉ）で示されるイミダゾール化合物としては、
例えば四国化成工業社性キュアゾール2MZ−CN、2E4MZ−
CN、2IZ−CN、2PZ−CN等があり、これらは上記のエポキ
シ趣脂とフェノール樹脂の総量100重量部に対して、0.0
5〜5.0重量部の範囲で用いられる。イミダゾール化合物
が0.05重量部未満では、乾燥時間が長くなり、また5.0
重量部に超えると硬化促進剤の効果がそれ以上期待でき
なくなる。In the present invention, the imidazole compound represented by the above general formula (I) used as a curing accelerator includes:
For example, Shikoku Chemicals Co., Ltd.Curesol 2MZ-CN, 2E4MZ-
There are CN, 2IZ-CN, 2PZ-CN and the like, and these are 0.0
Used in the range of 5 to 5.0 parts by weight. If the amount of the imidazole compound is less than 0.05 parts by weight, the drying time becomes longer, and
If the amount exceeds the weight part, the effect of the curing accelerator cannot be expected any more.
本発明においては、前記エポキシ樹脂、フェノール樹
脂、イミダゾール化合物は、電気機器冷凍機のモートル
への絶縁処理時の作業性、コイルへの含浸性、乾燥塗膜
の均一性などの点から、有機溶剤に溶解した液状ワニス
として用いることが好ましい。該有機溶剤としては、プ
ロピルアルコール、ブタノールなどのアルコール類、ト
ルエン、キシレンなどの芳香族炭化水素類、メチルセロ
ソルブ、エチルセロソルブ等のセロソルブ類などが挙げ
られ、これらは単独または２種以上混合して用いること
ができる。In the present invention, the epoxy resin, the phenolic resin, and the imidazole compound may be used in the form of an organic solvent from the viewpoints of workability during insulation treatment of a motor of an electric equipment refrigerator, impregnation into a coil, uniformity of a dried coating film, and the like. It is preferably used as a liquid varnish dissolved in water. Examples of the organic solvent include alcohols such as propyl alcohol and butanol, aromatic hydrocarbons such as toluene and xylene, and cellosolves such as methyl cellosolve and ethyl cellosolve. These may be used alone or in combination of two or more. Can be used.
以下、本発明を実施例により詳しく説明する。下記例
中の部とは、重量部を意味する。Hereinafter, the present invention will be described in more detail with reference to Examples. Parts in the following examples mean parts by weight.
実施例１〜５ DEN−438（ノボラック型エポキシ樹脂、ダウケミカル
社製）、Ep−1001（ビスフェノール型エポキシ樹脂、シ
ェル化学社製）、PR−4020（レゾール型フェノール樹脂
分50重量％のｎ−ブタノール−キシレン混合溶液、日立
化成工業社製）、2E4MZ−CN（イミダゾール化合物、四
国化成工業社製）、ｎ−ブタノール、キシレンを第１表
に示す割合で配合したワニスを作製し、諸特性（粘度、
塗膜の乾燥性、接着力、耐冷媒性、体積抵抗率、絶縁破
壊の強さ）を下記の試験方法で測定した。その結果を第
１表に示す。Examples 1 to 5 DEN-438 (novolak type epoxy resin, manufactured by Dow Chemical Company), Ep-1001 (bisphenol type epoxy resin, manufactured by Shell Chemical Co., Ltd.), PR-4020 (resor type phenolic resin having 50% by weight of n- A varnish was prepared by mixing butanol-xylene mixed solution, manufactured by Hitachi Chemical Co., Ltd., 2E4MZ-CN (imidazole compound, manufactured by Shikoku Chemicals Co., Ltd.), n-butanol, and xylene in the proportions shown in Table 1 and various properties ( viscosity,
The drying properties, adhesive strength, refrigerant resistance, volume resistivity, and dielectric breakdown strength of the coating film were measured by the following test methods. Table 1 shows the results.
＜試験方法＞ （１）粘度 東京計器製BL型回転粘度計を用いて25℃で測定した。<Test Method> (1) Viscosity The viscosity was measured at 25 ° C. using a Tokyo Keiki BL rotational viscometer.
（２）塗膜の乾燥性 50×100×0.3tmmのステンレス板にワニスを塗布した
あと120℃に放置し、乾燥時間を指触によって測定し
た。(2) Drying property of coating film A varnish was applied to a stainless plate of 50 x 100 x 0.3 t mm, left at 120 ° C, and the drying time was measured by finger touch.
（３）接着力 直径1.0mmの１種仕上げアミドイミド樹脂被覆銅線
（以下、1AIWと略す）を用いて、JIS Ｃ 2103に準じ
て直径5mmのヘリカルコイルを作製し、これを各々のワ
ニスに浸漬して135℃で１時間乾燥後、再び同じワニス
に浸漬して135℃で６時間乾燥して試験片を作製した。
この試験片の接着力を島津製作所社製オートグラフIM−
100型を用いて、120℃で測定した。この時のヘリカルコ
イルの接着力の測定法の略図を第１図に示した。図に示
すように、ワニス処理した直径5mmのヘリカルコイル１
は50mm間隔に置かれた支持台2a、2b上に載せられ、矢印
Ａ方向の荷重がかけられる。ヘリカルコイルの接着力
は、後述する耐冷媒性試験を行なったものと行わないも
の（初期）について測定した。(3) Adhesive strength A helical coil with a diameter of 5 mm is manufactured using a type 1 finish amide imide resin-coated copper wire with a diameter of 1.0 mm (hereinafter abbreviated as 1AIW) according to JIS C 2103, and immersed in each varnish. After drying at 135 ° C. for 1 hour, it was immersed again in the same varnish and dried at 135 ° C. for 6 hours to prepare a test piece.
The adhesive strength of this test piece was measured using an Autograph IM- manufactured by Shimadzu Corporation.
It measured at 120 degreeC using the 100 type | mold. FIG. 1 shows a schematic diagram of a method for measuring the adhesive strength of the helical coil at this time. As shown in the figure, the varnish-treated helical coil 1 having a diameter of 5 mm
Are placed on the supports 2a, 2b placed at 50 mm intervals, and a load in the direction of arrow A is applied. The adhesive strength of the helical coil was measured for those subjected to a refrigerant resistance test described below and those not performed (initial).
（４）耐冷媒性 50×100×0.3tmmのステンレス板に各々のワニスを浸
漬して135℃で１時間乾燥後、再びワニスに浸漬して135
℃で６時間乾燥したもの、および（３）で得られたワニ
ス処理したヘリカルコイルを試験片とし、これらを内容
積１のステンレス製耐圧容器（以下、オートクレーブ
と略す）に入れ、冷凍機油（昭和石油社製＃150）300g
を加え密封し、真空乾燥（100℃、1mmHg、１時間）して
冷凍機油に含まれる水分を除去した後、オートクレーブ
を冷却し、Ｒ−22（アサヒフロン社製）300gを注入して
密封した。密封したオートクレーブを120℃で144時間放
置後、室温まで冷却したのち開封し、試験片を取出して
付着した冷凍機油をガソリンで５回洗浄した。この洗浄
した試験片を、130℃で30分加熱してガソリンを除去し
たあと、ステンレス板については、重量を測定し、初期
の重量に対する変化率を求め、ヘリカルコイルについて
は、120℃での接着力を測定した。(4) Refrigerant resistance Each varnish was immersed in a 50 × 100 × 0.3 tmm stainless steel plate, dried at 135 ° C. for 1 hour, and immersed again in varnish to obtain 135
The test pieces were dried at 6 ° C. for 6 hours and the varnish-treated helical coil obtained in (3) and placed in a stainless steel pressure-resistant container (hereinafter abbreviated as autoclave) having an internal volume of 1, and the refrigerating machine oil (Showa Showa) Oil company # 150) 300g
, And then dried under vacuum (100 ° C., 1 mmHg, 1 hour) to remove water contained in the refrigerating machine oil. Then, the autoclave was cooled, and 300 g of R-22 (manufactured by Asahi Flon) was injected and sealed. . The sealed autoclave was allowed to stand at 120 ° C. for 144 hours, cooled to room temperature, and then opened. The test piece was taken out, and the attached refrigerator oil was washed five times with gasoline. After heating the washed test piece at 130 ° C for 30 minutes to remove gasoline, the weight of the stainless steel plate was measured to determine the rate of change with respect to the initial weight, and the adhesion of the helical coil at 120 ° C was determined. The force was measured.
（５）体積抵抗率 JIS Ｃ 2103に準じて、100×180×0.3tmmのステン
レス板に塗膜の厚さが0.06〜0.10mmの範囲に入るように
２回（１回目:135℃/1時間、２回目:135℃/6時間）また
は４回（１〜３回目:135℃/1時間、４回目:135℃/6時
間）ワニス処理したものを試験片とし、常態時と浸水後
（25℃、24時間浸漬後）の体積抵抗率を測定した。(5) Volume resistivity twice on a stainless steel plate of 100 × 180 × 0.3 t mm according to JIS C 2103 so that the thickness of the coating falls within the range of 0.06 to 0.10 mm (the first time: 135 ° C./1 Time, 2nd time: 135 ° C / 6 hours) or 4 times (1st to 3rd times: 135 ° C / 1 hour, 4th time: 135 ° C / 6 hours) are treated as varnish-treated test pieces. After immersion at 25 ° C. for 24 hours), the volume resistivity was measured.
（６）絶縁破壊の強さ （５）で得られた試験片の常態時と浸水後（25℃、24
時間浸漬後）の絶縁破壊電圧の強さを測定した。(6) Dielectric breakdown strength The test specimen obtained in (5) under normal conditions and after immersion (25 ° C, 24
After immersion for a time), the strength of the dielectric breakdown voltage was measured.
実施例６〜９ ECN−1280（ノボラック型エポキシ樹脂、チバ社
製）、Ep−1001、PR−4020、2E4MZ−CN、ｎ−ブタノー
ル、キシレンを第１表に示す割合で配合したワニスを作
製し、これらの諸特性を実施例１〜５と同様にして測定
した。結果を第１表に示す。Examples 6 to 9 Varnishes were prepared by blending ECN-1280 (a novolak type epoxy resin, manufactured by Ciba), Ep-1001, PR-4020, 2E4MZ-CN, n-butanol, and xylene in the proportions shown in Table 1. These characteristics were measured in the same manner as in Examples 1 to 5. The results are shown in Table 1.
比較例１ 実施例１において、ノボラック型エポキシ樹脂を使用
しなかった以外は実施例１と同様の方法でワニスを作製
し、諸特性を測定した。結果を第１表に示す。Comparative Example 1 A varnish was prepared in the same manner as in Example 1 except that novolak type epoxy resin was not used, and various characteristics were measured. The results are shown in Table 1.
〔発明の効果〕 本発明の冷凍機のモートルのための電気絶縁用樹脂組
成物は、従来のワニスに比較して、接着力、耐冷媒性な
どに優れ、冷凍機のモートルの小型軽量化および信頼性
の向上を図ることができる。 [Effects of the Invention] The resin composition for electrical insulation for a motor of a refrigerator of the present invention is excellent in adhesive strength, refrigerant resistance, and the like, as compared with conventional varnishes, and can reduce the size and weight of the motor of the refrigerator. Reliability can be improved.
第１図は、ヘリカルコイルの接着力の測定法を示す略図
である。 １……ワニス処理したヘリカルコイル、2a、2b……支持
台。FIG. 1 is a schematic diagram showing a method for measuring the adhesive force of a helical coil. 1 ... Helical coil treated with varnish, 2a, 2b ... Support.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 門谷 建蔵 茨城県日立市東町４丁目13番１号 日立 化成工業株式会社山崎工場内 (72)発明者 山中 桂介 千葉県習志野市東習志野町７丁目１番１ 号 株式会社日立製作所習志野工場内 (72)発明者 末松 速実 千葉県習志野市東習志野町７丁目１番１ 号 株式会社日立製作所習志野工場内 (56)参考文献 特開 昭60−53525（ＪＰ，Ａ) 特開 昭60−51716（ＪＰ，Ａ) 垣内弘編「新エポキシ樹脂」（昭60− ５−10）（株）昭晃堂Ｐ．40 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenzo Kadoya 4-3-1-1, Higashicho, Hitachi City, Ibaraki Prefecture Inside the Yamazaki Plant of Hitachi Chemical Co., Ltd. (72) Inventor Keisuke Yamanaka 7-1 Higashi Narashino Town, Narashino City, Chiba Prefecture No. 1 Inside the Narashino Plant of Hitachi, Ltd. (72) Inventor Hayami Suematsu 7-1-1, Higashi Narashino-cho, Narashino City, Chiba Prefecture Inside the Narashino Plant of Hitachi, Ltd. (56) References JP-A-60-53525 (JP) JP-A-60-51716 (JP, A) Hiroshi Kakiuchi, "New Epoxy Resin" (Showa 60-5-10), Shokodo Co., Ltd. 40
Claims (1)
ボラック型エポキシ樹脂とビスフェノール型エポキシ樹
脂との混合物100重量部、（Ｂ）レゾール型フェノール
樹脂20〜100重量部及び（Ｃ）一般式（Ｉ） （R1は水素原子または炭素数１〜３のアルキル基、R2は
炭素数１〜11のアルキル基またはフェニル基）で示され
るイミダゾール化合物を（Ａ）と（Ｂ）の総量100重量
部に対して0.05〜0.5重量部含有してなる冷凍機のモー
トルのための電気絶縁用樹脂組成物。1. 100 parts by weight of (A) a novolak-type epoxy resin or a mixture of a novolak-type epoxy resin and a bisphenol-type epoxy resin, (B) 20 to 100 parts by weight of a resole-type phenolic resin, and (C) a general formula (I) (R 1 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and R 2 is an alkyl group or a phenyl group having 1 to 11 carbon atoms) in an amount of 100 parts by weight of the total amount of (A) and (B). An electrically insulating resin composition for a motor of a refrigerator comprising 0.05 to 0.5 parts by weight of the resin composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63095070A JP2571816B2 (en) | 1988-04-18 | 1988-04-18 | Resin composition for electrical insulation for refrigerator motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63095070A JP2571816B2 (en) | 1988-04-18 | 1988-04-18 | Resin composition for electrical insulation for refrigerator motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01266127A JPH01266127A (en) | 1989-10-24 |
| JP2571816B2 true JP2571816B2 (en) | 1997-01-16 |
Family
ID=14127732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63095070A Expired - Lifetime JP2571816B2 (en) | 1988-04-18 | 1988-04-18 | Resin composition for electrical insulation for refrigerator motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571816B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5392535B2 (en) * | 2008-10-31 | 2014-01-22 | 日立化成株式会社 | Resin composition for insulating electrical equipment and electrical equipment electrically insulated using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053525A (en) * | 1983-09-02 | 1985-03-27 | Hitachi Chem Co Ltd | Resin composition for impregnation of motor coil for freezer |
-
1988
- 1988-04-18 JP JP63095070A patent/JP2571816B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 垣内弘編「新エポキシ樹脂」（昭６０−５−１０）（株）昭晃堂Ｐ．４０ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01266127A (en) | 1989-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20070011493A (en) | Epoxy resin composition | |
| JPH09316167A (en) | Thermosetting resin composition, electrical insulating coil, and rotating electric machine and production thereof | |
| JPH0618855B2 (en) | Low viscosity epoxy resin composition | |
| JP2571816B2 (en) | Resin composition for electrical insulation for refrigerator motor | |
| EP0031904A1 (en) | Heat-resistant thermosetting resin composition | |
| CA1332017C (en) | Epoxy resin powder coating composition | |
| KR920000501B1 (en) | Compressor motor | |
| CA1333837C (en) | Low viscosity epoxy resin compositions | |
| JP3399095B2 (en) | Liquid epoxy resin composition | |
| TW513465B (en) | Flame retardant epoxy resin composition for printed board, and prepreg and metal foil clad laminate using the same | |
| JPH05112631A (en) | Varnish for impregnating motor coil of refrigerator | |
| JP2570210B2 (en) | Prepreg | |
| JPH09137041A (en) | Resin composition for impregnation and electrical insulating coil using the same | |
| JP2002060674A (en) | Resin composition for coating rare earth permanent magnet and rare earth permanent magnet having coating film of the composition | |
| JPH1149845A (en) | Resin composition for insulation treatment of refrigerator motor and refrigerator motor using the same | |
| JPS6216209B2 (en) | ||
| JP2597122B2 (en) | Curing agent for epoxy resin | |
| JPH1060084A (en) | Epoxy resin composition and coil insulated with the same | |
| CN101092504A (en) | Solvent-free resin applied to vacuum pressure impregnation process of high-voltage motor | |
| JPH0556587A (en) | Manufacture of insulated refrigerator motor | |
| JPH1017793A (en) | Epoxy resin-based powder coating composition | |
| JPH1077391A (en) | Resin composition for refrigerating-machine motor | |
| JPH0713181B2 (en) | Flame-retardant epoxy resin composition | |
| JPH04202320A (en) | Impregnation varnish for refrigerator motor coil | |
| JPS6324627B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071024 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081024 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081024 Year of fee payment: 12 |