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The present invention relates to a process for manufacturing a hollow fibre membrane having a supporting layer and a separating layer, said process comprising: (a)extruding a spinning composition comprising a first polymer and a solvent for the first polymer through an inner annular orifice of a hollow-fibre die; (b)co-extruding a composition comprising an organic nucleophilic reagent and a mixtures of a solvent and a non-solvent for the first polymer, wherein the composition is either extruded through a central annular orifice of the hollow-fibre die or through an outer annular orifice of a hollow-fibre die; and (c)passing the hollow-fibre through a coagulation bath. The hollow fibre membrane according to the present invention can be used in gas separation processes, vapour separation processes and liquid filtration processes.
HOLLOW FIBRE MEMBRANE WO2012015296 (A1)
METHOD AND DEVICE FOR MEMBRANE CLEANING IN ELECTRO-MEMBRANE PROCESSES
WO2010143945 (A1)
The invention relates to a method for membrane cleaning and a device wherein this method can be applied. The method comprises the steps of : -operating a device for performing an electro-membrane process; and -applying inverse electrical pulses to the device. The device comprises a number of anode and cathode compartments provided with a number of electrodes, a number of cation exchange membranes and a number of anion exchange membranes, placed alternately between the compartments, and function generator means capable of providing inverse electrical pulses. Between or during the pulses, alternating or fluctuating current and /or voltage is applied.
POLYMER COMPOSITION COMPRISING A BLEND OF A MULTI-BLOCK THERMOPLASTIC ELASTOMER AND A POLYMER COMPRISING A GROUP 14 METAL
WO2010137974 (A1)
The present invention relates to a polymer composition comprising a blend of a multi-block thermoplastic elastomer comprising alternating hard polymeric blocks and soft polymeric blocks, and a polymer comprising a metal of Group 14 of the Periodic System of the Elements. The present invention also relates to a membrane comprising said blend and its application in separation processes, ion transport processes, ultrafiltration and nanofiltration.
HIGH THROUGHPUT SCREENING METHOD AND APPARATUS FOR ANALYSING INTERACTIONS BETWEEN SURFACES WITH DIFFERENT TOPOGRAPHY AND THE ENVIRONMENT
WO2009058015 (A1)
The invention is directed to a high throughput screening method for analysing and interaction between a surface of a material and an environment. The screening method of the invention comprises: providing a micro-array comprising said material and having a multitude of units at least part of which have different topography; contacting at least part of said multitude of units with said environment; and screening said micro-array for an interaction between one or more of said units and said environment.
ION-PERMEABLE MEMBRANE AND THE PRODUCTION THEREOF
WO2008122442 (A1)
The invention relates to a method for the production of an ion-permeable membrane with a profiled surface, wherein a shaping element is brought into contact with an uncured polymer film containing at least one polymer, creating a preferably regular pattern of similarly or differently structured ridges and/or depressions, an ion-permeable membrane that may particularly be produced using such a method, a membrane arrangement comprising at least one such ion-permeable membrane, and a method for the electrodialytic desalination of liquids in which at least one such membrane arrangement is used.
GAS SEPARATION MEMBRANES COMPRISING PERMEABILITY ENHANCING ADDITIVES
WO2007105952 (A1)
The present invention relates to polymer compositions comprising a (co)polymer comprising (a) an arylene oxide moiety and (b) a dendritic (co)polymer, a hyperbranched (co)polymer or a mixture thereof, and the use of these polymer compositions as membrane materials for the separation of gases. The present invention further relates to the use of a dendritic (co)polymer, a hyperbranched (co)polymer or a mixture thereof as permeability and/or selectivity enhancing additives in gas separation membranes. The dendritic (co)polymer is preferably a Boltorn polymer.