POLYPROPYLENE FILM STRUCTURE

To provide a structure, particularly a film capacitor, comprising a biaxially oriented film having a long operating life in an environment in contact with oils containing aromatic hydrocarbons, particularly cyclic aromatic hydrocarbons such as derivatives of toluene.SOLUTION: The structure comprises...

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Bibliographische Detailangaben
Hauptverfasser: FRANCISCUS JACOBS, GUIDO BOELAERS
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a structure, particularly a film capacitor, comprising a biaxially oriented film having a long operating life in an environment in contact with oils containing aromatic hydrocarbons, particularly cyclic aromatic hydrocarbons such as derivatives of toluene.SOLUTION: The structure comprises a biaxially oriented film having a layer comprising a homopolymer of propylene, the layer being in contact with oil, where the homopolymer of propylene has a content of isotactic pentads of 95% to 98% and a content of ash of 30 ppm or less.SELECTED DRAWING: None 【課題】芳香族炭化水素、特にトルエンの誘導体などの環式芳香族炭化水素を含む油と接触する環境において長い動作寿命を有する二軸延伸フィルムを含む構造体、特にフィルムコンデンサを提供する。【解決手段】プロピレンのホモポリマーを含む層であり、油と接触している層を有する二軸延伸フィルムを含む構造体であって、前記プロピレンのホモポリマーは95%〜98%のアイソタクチックペンタッドの含有量および30ppm以下の灰分の含有量を有することを特徴とする構造体。【選択図】なし