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Title:
POLYPROPYLENE FILM
Document Type and Number:
WIPO Patent Application WO/2022/210693
Kind Code:
A1
Abstract:
This polypropylene film is characterized in that the tanδ of the main orientation direction at 150ºC is 0.25 or less and the Young's modulus of a direction orthogonal to the main orientation direction is 50 MPa or more at 130ºC.　The present invention provides a polypropylene film with excellent heat resistance, mechanical strength, and quality.

Inventors:
FUJIWARA SATOSHI (JP)
OKADA KAZUMA (JP)
OHKURA MASATOSHI (JP)
Application Number:
PCT/JP2022/015391
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/18; B32B27/32
Domestic Patent References:
WO2018034182A12018-02-22
WO2017159103A12017-09-21
WO2015146894A12015-10-01
Foreign References:
JP2016187959A2016-11-04
JP2020075818A2020-05-21
JP2006130846A2006-05-25
JPS62233248A1987-10-13
JP2014055276A2014-03-27
JP2014205799A2014-10-30
JPH0880564A1996-03-26
EP0172277A11986-02-26
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