Invention Grant
- Patent Title: Biaxially stretched polypropylene film, metallized film, metallized film roll and film capacitor
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Application No.: US17261826Application Date: 2019-08-28
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Publication No.: US11961683B2Publication Date: 2024-04-16
- Inventor: Yoshimune Okuyama , Takeshi Tominaga , Yoshikazu Fujishiro , Tadakazu Ishiwata
- Applicant: Oji Holdings Corporation
- Applicant Address: JP Tokyo
- Assignee: Oji Holdings Corporation
- Current Assignee: Oji Holdings Corporation
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JP 18160107 2018.08.29 JP 19152388 2019.08.22 JP 19155265 2019.08.28
- International Application: PCT/JP2019/033774 2019.08.28
- International Announcement: WO2020/045523A 2020.03.05
- Date entered country: 2021-01-20
- Main IPC: H01G4/32
- IPC: H01G4/32 ; B29C55/12 ; H01G4/18
Abstract:
A biaxially stretched polypropylene film which has a thickness of from 1.0 μm to 3.5 μm, a tensile fracture stress at 135° C. of 70 MPa or more in a first direction, and a difference between the tensile fracture stress at 125° C. in the first direction and the tensile fracture stress at 135° C. in the first direction of from 0 MPa to 15 MPa (inclusive).
Public/Granted literature
- US20210291427A1 BIAXIALLY STRETCHED POLYPROPYLENE FILM, METALLIZED FILM, METALLIZED FILM ROLL AND FILM CAPACITOR Public/Granted day:2021-09-23
Information query
