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Title:
POLYOLEFIN MICROPOROUS MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2019/045077
Kind Code:
A1
Abstract:
A polyolefin microporous membrane has a piercing elongation of 2.30 mm or lower and the temperature of the stress variation point is 80.0°C or higher and the stress peak value is 1.8 g or lower in thermomechanical analysis (TMA) of the width direction of the polyolefin microporous membrane.

Inventors:
KAJIWARA MANA (JP)
MIYAZAWA HIROSHI (JP)
Application Number:
JP2018/032496
Publication Date:
March 07, 2019
Filing Date:
August 31, 2018
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08J9/26
Domestic Patent References:
WO2014126079A12014-08-21
WO2007060990A12007-05-31
WO2015146893A12015-10-01
Foreign References:
JP2015208893A2015-11-24
JP5296917B12013-09-25
JP2015120835A2015-07-02
JP3347854B22002-11-20
JP2014162851A2014-09-08
JP2016121327A2016-07-07
JP2009202413A2009-09-10
JP2016121354A2016-07-07
JP2005209452A2005-08-04
JP2016121354A2016-07-07
JP2017027945A2017-02-02
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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