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Title:
POLYPROPYLENE FILM, POLYPROPYLENE FILM WITH INTEGRATED METAL LAYER, AND FILM CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2020/217930
Kind Code:
A1
Abstract:
A polypropylene film wherein the difference [(Δnyz) – (Δnxz)] between a birefringence value Δnxz and a birefringence value Δnyz is 0.009 or less, the ratio [(tensile modulus TD)/(tensile modulus MD)] of a machine-directional tensile modulus MD thereof at 25°C and a transverse-directional tensile modulus TD thereof at 25°C is 1.20 or less, the tensile modulus MD is 3.1 GPa or greater, and the thickness thereof is 0.8 μm to 5 μm, inclusive.

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Inventors:
SUEYOSHI MICHIKO (JP)
TOMINAGA TAKESHI (JP)
ISHIWATA TADAKAZU (JP)
OKUYAMA YOSHIMUNE (JP)
Application Number:
PCT/JP2020/015351
Publication Date:
October 29, 2020
Filing Date:
April 03, 2020
Export Citation:
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Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
C08J5/18; B32B7/022; B32B7/023; B32B15/085; H01G4/32
Domestic Patent References:
WO2018124300A12018-07-05
WO2018056404A12018-03-29
Foreign References:
JP2016199686A2016-12-01
JP2014231584A2014-12-11
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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