JPS63224313A - Metallized plastic film capacitor - Google Patents
Metallized plastic film capacitorInfo
- Publication number
- JPS63224313A JPS63224313A JP5934487A JP5934487A JPS63224313A JP S63224313 A JPS63224313 A JP S63224313A JP 5934487 A JP5934487 A JP 5934487A JP 5934487 A JP5934487 A JP 5934487A JP S63224313 A JPS63224313 A JP S63224313A
- Authority
- JP
- Japan
- Prior art keywords
- dielectric
- cyanoethylated
- plastic film
- metallized plastic
- film
- 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
Links
- 239000003990 capacitor Substances 0.000 title claims description 15
- 239000002985 plastic film Substances 0.000 title claims description 13
- 229920006255 plastic film Polymers 0.000 title claims description 13
- 239000002131 composite material Substances 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical class O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 2
- 239000013034 phenoxy resin Substances 0.000 claims description 2
- 229920006287 phenoxy resin Polymers 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 18
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 239000010409 thin film Substances 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 4
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 239000011104 metalized film Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical class OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 150000003445 sucroses Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子機器、情報機器等の電気回路に使用する
金属化プラスチックフィルムコンデンサに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to metallized plastic film capacitors used in electrical circuits of electronic equipment, information equipment, etc.
従来の技術
近年、電子機器等の軽薄短小化、高性能化が進む中で、
電子部品の小型化、高性能化への要望が高まってきてお
り、金属化プラスチックフィルムコンデンサにおいても
これらへの取組が急務となりつつある。Conventional technology In recent years, as electronic devices have become lighter, thinner, shorter, and more sophisticated,
Demands for smaller size and higher performance of electronic components are increasing, and efforts to meet these demands are becoming urgent for metallized plastic film capacitors.
以下に従来の金属化プラスチックフィルムコンデンサに
ついて説明を行う。A conventional metallized plastic film capacitor will be explained below.
図は金属化プラスチックフィルムコンデンサの一例の構
造を示す断面図である。図において、１は誘電体フィル
ム、２は誘電体フィルムの両面に真空蒸着によって形成
された電極、３は上記両面金属化フィルムの両面に電極
引き出し部を幅方向の両側に残して形成した薄膜誘電体
塗工層であり、これによゆ一枚の複合金属化フィルムを
なす。この複合金属化フィルムを積層した後、両端面部
にメタリコン電極４を形成することによりコンデンサ素
子が得られる。The figure is a cross-sectional view showing the structure of an example of a metallized plastic film capacitor. In the figure, 1 is a dielectric film, 2 is an electrode formed by vacuum deposition on both sides of the dielectric film, and 3 is a thin film dielectric formed on both sides of the double-sided metallized film with electrode extensions left on both sides in the width direction. This is the body coating layer, which forms a single composite metallized film. After laminating this composite metallized film, a capacitor element is obtained by forming metallicon electrodes 4 on both end faces.
従来の金属化プラスチックフィルムコンデンサにおいて
は、誘電体フィルムとして、主としてポリエチレンテレ
フタレートが、塗工誘電体として、主としてポリカーボ
ネートが用いられている。これらの材料は優れた電気特
性を有しているが、その誘電率は高々３程度であり、又
フィルム、塗工膜共にすでに１μｍ程度まで薄膜化され
ている。In conventional metallized plastic film capacitors, polyethylene terephthalate is primarily used as the dielectric film, and polycarbonate is primarily used as the coated dielectric. Although these materials have excellent electrical properties, their dielectric constants are about 3 at most, and both films and coatings have already been thinned to about 1 μm.
発明が解決しようとする問題点
コンデンサの静電容量は誘電体の誘電率と電極の面積に
比例し、電極間の距離に反比例することが知られている
。従って、小型化、即ち単位体積当たりの静電容量を大
きくするためには、高誘電率の誘電体を用いるか、又は
、誘電体の薄膜化を図ることが必要となる。Problems to be Solved by the Invention It is known that the capacitance of a capacitor is proportional to the dielectric constant of the dielectric material and the area of the electrodes, and inversely proportional to the distance between the electrodes. Therefore, in order to reduce the size, that is, to increase the capacitance per unit volume, it is necessary to use a dielectric with a high dielectric constant or to make the dielectric thin.
しかしながら、誘電体の薄膜化については、上記のとお
りフィルム、塗工膜ともにすでに１μｍ程度まで薄膜化
されており、これ以上の薄膜化は電気特性の劣化、作業
性の低下を招くため困難な状況にある。However, as mentioned above, both the film and the coating film have already been thinned to about 1 μm, and making the dielectric thinner any further is difficult because it will lead to deterioration of electrical properties and reduced workability. It is in.
従って、本発明においては、塗工誘電体材料の高誘電率
化によりコンデンサの小型化を図ることを目的とするも
のである。Therefore, an object of the present invention is to reduce the size of a capacitor by increasing the dielectric constant of the coated dielectric material.
問題点を解決するための手段
本発明の金属化プラスチックフィルムコンデンサは、両
面金属化プラスチックフィルムの両面又は片面に、電極
引き出し部を幅方向の両側に残して薄膜誘電体塗工層を
形成し、これを積層又は巻回して前記両側にメタリコン
電極を形成することにより構成され、かつ前記薄膜誘電
体塗工層の材料として、ポリフェニレンオキサイドとシ
アノエチル化高分子誘電体とから成る複合誘電体を用い
たことを特徴とする。Means for Solving the Problems The metallized plastic film capacitor of the present invention includes forming a thin dielectric coating layer on both sides or one side of a double-sided metallized plastic film, leaving electrode extensions on both sides in the width direction, It is constructed by laminating or winding these to form metallicon electrodes on both sides, and a composite dielectric consisting of polyphenylene oxide and a cyanoethylated polymer dielectric is used as the material of the thin film dielectric coating layer. It is characterized by
作用
本発明の特徴は前述のように、金属化プラスチックフィ
ルムコンデンサの一方の誘電体である薄膜誘電体塗工層
の材料としてポリフェニレンオキサイドとシアノエチル
化高分子誘電体とからなる複合誘電体を用いたことにあ
る。Function: As mentioned above, the feature of the present invention is that a composite dielectric consisting of polyphenylene oxide and a cyanoethylated polymeric dielectric is used as the material for the thin film dielectric coating layer, which is one dielectric of the metallized plastic film capacitor. There is a particular thing.
すなわち、薄膜誘電体塗工層の材料として、優れた電気
特性、耐熱性等を有するポリフェニレンオキサイドの誘
電率は約２．６であるが、これにシアノエチル化高分子
誘電体を混合することにより複合誘電体の大幅な高誘電
率化を実現することを得たものである。In other words, polyphenylene oxide, which has excellent electrical properties and heat resistance, has a dielectric constant of approximately 2.6 as a material for the thin film dielectric coating layer, but by mixing it with a cyanoethylated polymeric dielectric, a composite material can be formed. This makes it possible to significantly increase the dielectric constant of the dielectric material.
シアノエチル化高分子誘電体としては、シアノエチル化
サッカロース、シアノヒドロキシエチルセルローズ、シ
アノエチル化ポバール、シアノエチル化フェノキシレジ
ンなどがある。Examples of cyanoethylated polymeric dielectrics include cyanoethylated saccharose, cyanohydroxyethyl cellulose, cyanoethylated poval, and cyanoethylated phenoxy resin.
シアノエチル化高分子誘電体の添加量としては、複合誘
電体の総量の８０重量％以下、好ましくは、６０〜４０
重量％であることが必要である。８０重量％を越えると
複合誘電体塗工膜の膜質が劣化するため、好ましくない
。The amount of the cyanoethylated polymer dielectric added is 80% by weight or less, preferably 60 to 40% by weight of the total amount of the composite dielectric.
It is necessary that the amount is % by weight. If it exceeds 80% by weight, the quality of the composite dielectric coating film will deteriorate, which is not preferable.
実施例 以下、本発明を実施例および比較例により説明する。Example The present invention will be explained below with reference to Examples and Comparative Examples.
（実施例）
ポリフェニレンオキサイドの粉末６０ｆとシアノエチル
化サッカロース６０ノをクロロホルム２０００ｉＰに均
一に溶解し、塗工液を得た。(Example) A coating solution was obtained by uniformly dissolving 60 f of polyphenylene oxide powder and 60 g of cyanoethylated sucrose in 2000 iP of chloroform.
この塗工液をグラビアコーターを用いて、金属化ポリエ
チレンテレフタレートフィルム上に！工し、膜厚１．０
μｍの複合誘電体膜を得た。Apply this coating liquid onto metalized polyethylene terephthalate film using a gravure coater! Processed, film thickness 1.0
A μm composite dielectric film was obtained.
この複合誘電体膜の誘電率は２６．４であった。The dielectric constant of this composite dielectric film was 26.4.
（比較例）
ポリフェニレンオキサイドの粉末５０／−’ｅ ）リク
レン４０ｏｉ！−に均一に溶解し、塗工液を得た。(Comparative example) Polyphenylene oxide powder 50/-'e) Rikuren 40oi! - to obtain a coating solution.
この塗工液をグラビアコーターを用いて、金属化ポリエ
チレンテレフタレートフィルム上に塗工し、膜厚１．０
μｍのポリフェニレンオキサイドの誘電体膜を得た。This coating solution was coated onto a metalized polyethylene terephthalate film using a gravure coater, and the film thickness was 1.0.
A polyphenylene oxide dielectric film of μm size was obtained.
この誘電体膜の誘電率は２．６であった。The dielectric constant of this dielectric film was 2.6.
発明の効果
以上の結果から明らかなように、薄膜誘電体塗工層の材
料として、ポリフェニレンオキサイドとシアノエチル化
高分子誘電体とからなる複合誘電体を用いることにより
塗工誘電体膜の高誘電率化が可能となり、コンデンサの
小型化、即ち単位体積当たりの静電容量の増大を図るこ
とが出来る。Effects of the Invention As is clear from the above results, by using a composite dielectric consisting of polyphenylene oxide and a cyanoethylated polymeric dielectric as the material for the thin dielectric coating layer, the dielectric constant of the coated dielectric film can be increased. This makes it possible to reduce the size of the capacitor, that is, to increase the capacitance per unit volume.
図は本発明の適用される金属化プラスチックフィルムコ
ンデンサの一例の構造を示す断面図である。
１・・・・・・誘電体フィルム、２・・・・・・蒸着金
属電極、３・・・・・・薄膜誘電体塗工層、４・・・・
・・メタリコン電極。
代理人の氏名 弁理士 中 尾 敏 男 はが１名／−
−−食撃電イ本フィルム
？−−−蔗着澄属電層
３− 簿牒詰電林Ｌ１
４−−−ノタリコン倖ソセThe figure is a sectional view showing the structure of an example of a metallized plastic film capacitor to which the present invention is applied. 1... Dielectric film, 2... Vapor deposited metal electrode, 3... Thin film dielectric coating layer, 4...
...Metallicon electrode. Name of agent: Patent attorney Toshio Nakao, 1 person/-
--Shokugekiden Is this film? --- Notarikon Kosose 3--
Claims (2)
に、電極引き出し部を幅方向の両側に残して薄膜誘電体
塗工層を形成し、これを積層又は巻回して前記両側にメ
タリコン電極を形成することにより構成され、かつ前記
薄膜誘電体塗工層の材料として、ポリフェニレンオキサ
イドとシアノエチル化高分子誘電体とから成る複合誘電
体を用いたことを特徴とする金属化プラスチックフィル
ムコンデンサ。(1) A thin dielectric coating layer is formed on both sides or one side of a double-sided metallized plastic film, leaving electrode extensions on both sides in the width direction, and this is laminated or wound to form metallicon electrodes on both sides. 1. A metallized plastic film capacitor comprising: a composite dielectric comprising polyphenylene oxide and a cyanoethylated polymeric dielectric as a material for the thin dielectric coating layer.
サッカロース、シアノエチル化ヒドロキシエチルセルロ
ース、シアノエチル化ボバール。 シアノエチル化フェノキシレジンのうちのいずれか一つ
又は、これらの混合物である特許請求の範囲第１項記載
の金属化プラスチックフィルムコンデンサ。(2) The cyanoethylated polymer dielectric is cyanoethylated saccharose, cyanoethylated hydroxyethyl cellulose, or cyanoethylated bovar. A metallized plastic film capacitor according to claim 1, which is any one of cyanoethylated phenoxy resins or a mixture thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5934487A JPS63224313A (en) | 1987-03-13 | 1987-03-13 | Metallized plastic film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5934487A JPS63224313A (en) | 1987-03-13 | 1987-03-13 | Metallized plastic film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63224313A true JPS63224313A (en) | 1988-09-19 |
Family
ID=13110589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5934487A Pending JPS63224313A (en) | 1987-03-13 | 1987-03-13 | Metallized plastic film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63224313A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03116918A (en) * | 1989-09-29 | 1991-05-17 | Toray Ind Inc | Capacitor |
| JP2009272461A (en) * | 2008-05-08 | 2009-11-19 | Panasonic Corp | Film capacitor |
-
1987
- 1987-03-13 JP JP5934487A patent/JPS63224313A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03116918A (en) * | 1989-09-29 | 1991-05-17 | Toray Ind Inc | Capacitor |
| JP2009272461A (en) * | 2008-05-08 | 2009-11-19 | Panasonic Corp | Film capacitor |
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