C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/25
C08J 9/28 (2006.01) B01D 71/10 (2006.01) C08L 1/02 (2006.01)
Patent
CA 1264514
TITLE METHOD OF MANUFACTURING A REVERSE OSMOSIS MEMBRANE OF CELLULOSIC MATERIAL INVENTORS Brian Farnand Takeshi Matsuura Srinivasa Sourirajan ABSTRACT There is provided a method of manufacturing cellulose membranes with pore radii less than 30 x 10-10m, suitable for reverse osmosis applications. The method comprises dissolving a cellulosic material in a DMSO/PF solvent at a temperature about 125°C for about 90 min., cooling and casting the solution at room temperature, evaporating the solvent at a temperature of 140-180°C and gelling the resulting membrane in a protic solvent, e.g. ethanol or water.
548640
Farnand Brian
Matsuura Takeshi
Sourirajan Srinivasa
Farnand Brian
Matsuura Takeshi
Sourirajan Srinivasa
Szereszewski Juliusz M.sc.
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