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Title:
MICROPOROUS MEMBRANE WITH ENHANCED ELECTROLYTE WETTABILITY
Document Type and Number:
WIPO Patent Application WO/2022/087889
Kind Code:
A1
Abstract:
A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more surface tension reducing techniques. In one aspect, the surface tension reducing technique includes adding a filler or chemical component to the polyethylene polymer for increasing wettability. Alternatively, the surface tension reducing technique can be a surface treatment, such as a plasma treatment. Polymer articles made in accordance with the present disclosure can have dramatically increased wettability properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.

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Inventors:
TAO FANGFANG (US)
OHM CHRISTIAN (US)
MARKGRAF KIRSTEN (US)
TSAMI-SCHULLTE ARGIRI (US)
Application Number:
PCT/CN2020/124374
Publication Date:
May 05, 2022
Filing Date:
October 28, 2020
Export Citation:
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Assignee:
CELANESE INT CORP (US)
TAO FANGFANG (CN)
International Classes:
C08K3/26; C08K3/22; C08K3/34; C08K5/00
Domestic Patent References:
WO2019180657A12019-09-26
WO2019035083A22019-02-21
Other References:
FU ZHAOXIA, YUFENG DUAN: "Properties of polyethylene/ATH treated with PE-g-MAH", JOURNAL OF HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY, vol. 28, no. 2, 30 June 2007 (2007-06-30), pages 110 - 113, XP055926535, ISSN: 1008-1542, DOI: 10.7535/hbkd.2007yx02007
CHEN MIN-JIE, ZHANG JUN: "The uses of compatibilizers made from maleic anhydride grafted polyolefins", CHINA ELASTOMERICS, vol. 12, no. 5, 25 October 2002 (2002-10-25), pages 50 - 57, XP009536186, ISSN: 1005-3174, DOI: 10.16665/j.cnki.issn1005-3174.2002.05.020
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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