Title:
ポリプロピレンフィルム、金属層一体型ポリプロピレンフィルム、フィルムコンデンサ、及び、フィルムロール
Document Type and Number:
Japanese Patent JP7265228
Kind Code:
B2
Abstract:
To provide a polypropylene film which enables suppression of blocking in a rolled polypropylene film.SOLUTION: A polypropylene film has a first surface and a second surface, contains a polypropylene resin as a main component, and is configured in such a manner that a ratio SpkB/SpkA of a Spk value (SpkA) of the first surface to a Spk value (SpkB) of the second surface is 0.490 or more and 0.730 or less, and a ratio SvkB/SvkA of a Svk value (SvkA) of the first surface to a Svk value (SvkB) of the second surface is 0.735 or more and 1.250 or less.SELECTED DRAWING: None
Inventors:
Ritsuji Ishida
Yoshie Okuyama
Masahiro Nakata
Tadakazu Ishiwata
Yoshie Okuyama
Masahiro Nakata
Tadakazu Ishiwata
Application Number:
JP2021133159A
Publication Date:
April 26, 2023
Filing Date:
August 18, 2021
Export Citation:
Assignee:
Oji Holdings Co., Ltd.
International Classes:
C08J5/18; B32B15/085; C08L23/12; H01G4/32
Domestic Patent References:
| JP2016188360A | ||||
| JP2016195250A | ||||
| JP2017119885A | ||||
| JP2014231584A | ||||
| JP2015146374A |
Foreign References:
| WO2017077752A1 | ||||
| WO2016159330A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Junias International Patent Office