Oji. has filed a patent for a polypropylene film with high dielectric breakdown strength at high temperatures. The film’s polypropylene resin has specific molecular-weight distribution parameters for optimal performance. GlobalData’s report on Oji gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Oji, Incontinence monitoring sensors was a key innovation area identified from patents. Oji's grant share as of January 2024 was 10%. Grant share is based on the ratio of number of grants to total number of patents.
The patent application (Publication Number: US20230416479A1) discloses a polypropylene film with specific characteristics, including a molecular-weight distribution within a defined range, Z-average molecular weight, weight proportion, and density. The film is designed for use in capacitors, offering enhanced dielectric breakdown strength at high temperatures. Additionally, the polypropylene resin used in the film may consist of two different resins, each with specific molecular weight, molecular-weight distribution, and melt flow rate parameters, contributing to the overall properties of the film. The thickness of the film is also specified within a certain range to ensure optimal performance.
Furthermore, the patent application describes a metal layer-integrated polypropylene film and its application in film capacitors. The metal layer is laminated on one or both surfaces of the polypropylene film, enhancing its functionality in capacitor applications. The resulting film capacitor exhibits improved insulation resistance at elevated temperatures, making it suitable for demanding operating conditions. The configuration of multiple metal layer-integrated polypropylene films further enhances the performance of the capacitor, ensuring reliable operation in various electrical systems. Overall, the disclosed innovations aim to provide a polypropylene film and film capacitor with superior dielectric properties and thermal stability for efficient electrical applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
