Biaxially oriented polypropylene film, metallized film, and capacitor

A biaxially oriented polypropylene film with enhanced molecular properties achieves high dielectric breakdown strength and insulation at high temperatures, addressing the heat resistance issues of existing films and maintaining capacitor performance.

JP7831000B2Active Publication Date: 2026-03-17OJI HLDG CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-25
Publication Date
2026-03-17

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Abstract

To provide: a biaxially stretched polypropylene film that exhibits high insulation breakdown strength even at high temperatures; and a metallized film using the biaxially stretched polypropylene film.SOLUTION: The present invention provides a biaxially stretched polypropylene film characterized in that the average value of ultrasonic wave propagation velocities in all directions at room temperature is at least 1.60 Km / sec as measured using an ultrasonic orientation testing instrument.SELECTED DRAWING: None
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Citation Information

Patent Citations

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