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Title:
ポリケトン多孔膜
Document Type and Number:
Japanese Patent JP5876696
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a polyketone porous membrane having heat resistance and chemical resistance and useful as a filtration filter having high collection efficiency of, for example, impurities or as a separator for a battery or a capacitor having low permeation resistance to ion or the like and high insulation.SOLUTION: The polyketone porous membrane contains 10-100 mass% polyketone being the copolymer of carbon monoxide and one or more kinds of olefin. The polyketone porous membrane has ≤1 μm maximum pore diameter, 5-90% porosity and has a polyketone portion formed of only polyketone over the film thickness direction, wherein the polyketone portion has a dense layer having ≥80% polymer filling ratio and a non-dense layer having <80% polymer filling ratio and a ratio T1:T2 of the thickness T1 of the dense layer and the thickness T2 of the non-dense layer is (1:99) to (50:50).

Inventors:
Daisuke Sato
Kanada Masayuki
Takashi Komatsu
Application Number:
JP2011217713A
Publication Date:
March 02, 2016
Filing Date:
September 30, 2011
Export Citation:
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Assignee:
Asahi Kasei Fibers Co., Ltd.
International Classes:
C08J9/28; B01D61/00; B01D69/06; B01D69/08; B01D69/10; B01D69/12; B01D71/76; C08G2/26; C12M3/04; C12N5/071; H01M2/16
Domestic Patent References:
JP2005144412A
JP2000189761A
JP2002348401A
JP2009286820A
JP2006027024A
JP58201983A
Foreign References:
US3979374
WO2010126113A1
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Kazuhiro Nakamura
Toko Saito
Shunsuke Mima