BIAXIALLY-ORIENTED POLYPROPYLENE FILM, METAL FILM LAMINATE FILM, AND FILM CAPACITOR

To provide a biaxially-oriented polypropylene film that has excellent voltage resistance mainly in a large-capacitance capacitor under a high-temperature high-voltage environment and has excellent productivity.SOLUTION: The present disclosure provides a biaxially-oriented polypropylene film. In a di...

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Bibliographische Detailangaben
Hauptverfasser:	SHIBA HIROKI, TSUGANE KAZUHEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a biaxially-oriented polypropylene film that has excellent voltage resistance mainly in a large-capacitance capacitor under a high-temperature high-voltage environment and has excellent productivity.SOLUTION: The present disclosure provides a biaxially-oriented polypropylene film. In a differential molecular weight distribution curve by gel permeation chromatography (GPC), the biaxially-oriented polypropylene film has a skewness of 0.2 or more and 1.0 or less and a kurtosis of -1.8 or more to -0.8 or less.SELECTED DRAWING: None 【課題】本発明は、主に大容量コンデンサにおける高温・高電圧環境下において優れた耐電圧性能を示し、かつ生産性に優れる二軸配向ポリプロピレンフィルムを提供することをその課題とする。【解決手段】ゲルパーミエーションクロマトグラフィー（ＧＰＣ）法による微分分子量分布曲線において、歪度が０．２以上１．０以下であり、尖度が−１．８以上−０．８以下であることを特徴とする、二軸配向ポリプロピレンフィルム。【選択図】なし