Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POLYPROPYLENE FILM, METAL-MEMBRANE LAYERED FILM USING SAME, AND FILM CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2020/040127
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a polypropylene film that has excellent long-term use reliability in a high-temperature environment when used in a high-voltage capacitor, is suitable for such capacitor use, and exhibits superior structural stability against heat; and a metal-membrane layered film and a film capacitor using said polypropylene film. Meanwhile, the purpose of the present invention is to obtain a polypropylene film that satisfies the following relation between the sum (E'135 (MD+TD)) of the storage elastic moduli of the film in the longitudinal direction and the width direction as determined by solid viscoelastic measurement at 135°C, and the sum (E'125 (MD+TD)) of said storage elastic moduli as determined by solid viscoelastic measurement at 125°C: E'135 (MD+TD)/E'125 (MD+TD)>0.7.

Inventors:
IMANISHI YASUYUKI (JP)
OHKURA MASATOSHI (JP)
NAKANISHI YUTA (JP)
Application Number:
PCT/JP2019/032413
Publication Date:
February 27, 2020
Filing Date:
August 20, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/18; B29C55/12; B32B15/085; H01G4/32; B29K23/00; B29L7/00
Domestic Patent References:
WO2015146894A12015-10-01
WO2016182003A12016-11-17
WO2015012324A12015-01-29
WO2015146893A12015-10-01
WO2019044758A12019-03-07
WO2015146894A12015-10-01
WO2015146894A12015-10-01
Foreign References:
JP2006082383A2006-03-30
JP2003105102A2003-04-09
JP2017500226A2017-01-05
JP2014055276A2014-03-27
JP2013177645A2013-09-09
JP2010280795A2010-12-16
JPH10156940A1998-06-16
JPH0873529A1996-03-19
JP2003191324A2003-07-08
JP2003105102A2003-04-09
Other References:
MOTONOBU KAWAI: "Nikkei Electronics", 17 September 2012, NIKKEI BUSINESS PUBLICATIONS, article "Expansion of Film Capacitor Applications; From Cars to Renewable Energy", pages: 57 - 62
See also references of EP 3842479A4
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: TEMPERATURE-ADJUSTING APPARATUS FOR PET AND TEMPERATURE-ADJUSTING METHOD FOR TEMPERATURE-ADJUSTING A...

Next Patent: BRAZING MATERIAL, BRAZING MEMBER, HEAT EXCHANGER, AND MANUFACTURING METHOD OF BRAZING MEMBER