C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/29
C08J 5/18 (2006.01) B01D 67/00 (2006.01) B01D 71/34 (2006.01) C08J 3/09 (2006.01) C08J 9/28 (2006.01) C08L 27/16 (2006.01)
Patent
CA 1323152
Abstract of the Disclosure A method of manufacturing a porous membrane by dissolving vinylidene fluoride polymer in a good solvent such as acetone and then causing solidification of the resultant solution in a non-solvent. The dissolution of the vinylidene fluoride polymer in the solvent is done in a predetermined pressur condition, namely 0.1 kg/cm , preferably in a range of 0.5 to 5.0 kg/cm2.
595365
Kitoh Hideaki
Koyama Noriyuki
Seita Yukio
Yokomachi Shinsuke
Macrae & Co.
Terumo Kabushiki Kaisha
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