Production of membranes

专利名称：Production of membranes

发明人：HOWARD MATTHEW COLQUHOUN,ALAN

FREDERICK SIMPSON,VICTOR ROGERS

申请号：AU1197395申请日：19941212公开号：AU1197395A公开日：19950627

摘要：A porous membrane is produced by gelation in a non-solvent medium of anaromatic ether ketone polymer dissolved in a strong acid which is substantially non-sulphonating to the polymer. The polyether ketone solution includes a polymer additivewhich is not substantially degraded by the strong acid and which is soluble both in thestrong acid, the non-solvent and mixtures thereof. The gelation medium may, for

example, be aqueous and the polymer additive may be polyvinylpyrrolidone. Membranesproduced by the method of the invention have good overall performance and flux at anygiven molecular weight cut-off.

申请人：NORTH WEST WATER GROUP PLC.

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