Title:
BIAXIALLY ORIENTED POLYPROPYLENE FILM, METAL FILM LAMINATED FILM, AND FILM CAPACITOR
Document Type and Number:
Japanese Patent JP2019172972
Kind Code:
A
Abstract:
To provide a biaxially oriented polypropylene film excellent in element processability by controlling a surface shape, and high-temperature voltage resistance, when being used as a dielectric for a capacitor.SOLUTION: There is provided a biaxially oriented polypropylene film mainly composed of a polypropylene resin. The biaxially oriented polypropylene film has, at least on one side, a surface having a thickness (t) of 1.0-3.0 μm, a root-mean-square roughness (Sq) of 10-70 nm, a protrusion mountain height (Spk) of 10-90 nm, and a protrusion trough height (Svk) of 10-70 nm.SELECTED DRAWING: None
Inventors:
INOUE TOMOYUKI
ASANO TETSUYA
ASANO TETSUYA
Application Number:
JP2019039269A
Publication Date:
October 10, 2019
Filing Date:
March 05, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08J5/18; B32B15/085; H01G4/32
Domestic Patent References:
| JP6115687B1 | 2017-04-19 | |||
| JP2014231584A | 2014-12-11 | |||
| JP2016188360A | 2016-11-04 | |||
| JP2010254794A | 2010-11-11 | |||
| JP2016135891A | 2016-07-28 |
Foreign References:
| WO2019131815A1 | 2019-07-04 | |||
| WO2017077752A1 | 2017-05-11 | |||
| WO2014148547A1 | 2014-09-25 | |||
| WO2014142264A1 | 2014-09-18 |