Patents
Patents for B01D 69 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor (16,729)
09/1994
09/21/1994EP0615780A1 Membrane and method for the separation of protein-bound substances from a protein-containing liquid by dialysis
09/21/1994EP0615519A1 Structure for a filter or a heat exchanger and a method for making the structure
09/20/1994US5348652 Semipermeable composite membrane
09/15/1994WO1994020603A1 Rectifying dialyzer, bioreactor and membrane
09/15/1994WO1994020207A1 Exothermic process with porous means to control reaction rate and exothermic heat
09/15/1994CA2157408A1 Exothermic process with porous means to control reaction rate and exothermic heat
09/14/1994CN1091990A Filtration membrane cartridge
09/07/1994CN2176362Y Water filter for drink
09/06/1994US5344702 Porous fibers coated with ultrathin polymer film, medical applications
08/1994
08/31/1994EP0612722A2 Isocyanate-substituted isophthaloyl chlorides
08/30/1994US5342521 Porous inorganic support coated on one face with mesoporous inorganic material having pore radius below 10 nm, an active layer of Nafion" or sulfonated polysulfone, grafted polyvinylidine fluoride, polybenzimidazolone
08/30/1994US5342432 Composite membrane, process for its production and its use
08/24/1994EP0611592A2 Membranes for use in affinity separation and methods for activating membranes
08/23/1994US5340480 Polysulfone-based hollow fiber membrane and process for manufacturing the same
08/18/1994WO1994018262A1 Polymer and porous structure
08/18/1994WO1994017906A1 Inter-penetrating network charge modified microporous membrane
08/18/1994WO1994017905A1 Polymer porous structure and process
08/18/1994WO1994017903A2 Membranes for use in affinity separation and methods for activating membranes
08/18/1994WO1994017894A1 Leukocyte removal method and filter unit for same
08/18/1994CA2155516A1 Inter-penetrating network charge modified microporous membrane
08/18/1994CA2155188A1 Polymer porous structure and process
08/17/1994EP0610756A1 Activated membrane and method for ligate separation
08/17/1994EP0610755A1 An affinity separation device and its use for immunoglobulin separation
08/17/1994CN1025653C Device and method for the depletion of the leukocyte content of blood and blood components
08/16/1994US5338770 Anticoagulants; amine-functional siloxanes reacted with polyethers coupled to bioactive material; oxygenators
08/16/1994US5338455 Process for the separation of components in an organic liquid medium and a semi-permeable composite membrane therefor
08/09/1994US5336409 Composite reverse osmosis membrane and novel acid chloride
08/09/1994US5336298 Polyelectrolyte membranes for the separation of acid gases
08/04/1994WO1994016802A1 Polytetrafluoroethylene porous film and method for manufacturing the same
08/03/1994EP0608366A1 Oil, water and sweat repellent microporous membrane materials.
08/02/1994US5334314 Composition membrane for separating water from fluids containing organic components by means of pervaporation
08/02/1994CA1331114C Alkali resistant hyperfiltration membrane
07/1994
07/21/1994WO1994015703A1 A filter
07/21/1994WO1994015701A1 Currents in narrow pores
07/20/1994EP0606933A1 Composite tube for membrane filtration
07/15/1994CA2113036A1 Composite tube for membrane filtration
07/12/1994US5328613 High temperature polymers formed by melt mixing with finely divided glass and leaching the intercommunicating glass
07/06/1994EP0604514A1 Treatment of aqueous media containing organic material
07/06/1994EP0589897A4 Ultraporous and microporous membranes and method of making membranes
07/06/1994CN1025290C Cross-flow filtration
07/05/1994US5326629 Olefin polymers with side groups as fibers or filaments in filters
06/1994
06/29/1994EP0603299A1 Semi-permeable membranes derived from reactive oligomers
06/29/1994EP0340262B1 Semi-permeable membranes with an internal discriminating region
06/28/1994US5324538 Applying amine and acid halide solutions to surface of microporous substrate to allow condensation, evaporating solvent
06/28/1994US5324430 High performance pan composite membranes
06/23/1994WO1994013352A1 Liquid applicator with metering insert
06/23/1994WO1994007594A3 Hollow fiber membrane incorporating a polyimide and process for preparing same
06/23/1994CA2150248A1 Liquid applicator with metering insert
06/22/1994EP0357781B1 Process for producing composite semipermeable membrane
06/22/1994EP0354937B1 Composite membranes of poly(methyl methacrylate) blends
06/15/1994EP0601942A1 Membranes for ion transport and method for obtaining them
06/15/1994EP0601633A1 Composite membrane with high selectivity and flux and process for the manufacture thereof
06/15/1994EP0601301A1 Membrane elements for reverse osmosis
06/15/1994EP0600932A1 Hollow dialysis filament.
06/15/1994CN1087841A Polysulfone-based hollow fiber membrane and process for manufacturing the same
06/14/1994US5320905 Films, powders, binders, ion exchange materials and sintered structure
06/14/1994US5320754 Applying perfluoroether to the surface of fiber or film, coating with perselective polyimide a polymerization product of 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride and 2,3,5,6-tetramethylphenylenediamine momomers
06/14/1994CA1330182C Composite membranes for enhanced fluid separation
06/09/1994WO1994012333A1 Casting hollow fiber membranes
06/09/1994CA2150941A1 Method and apparatus for casting hollow fiber membranes
06/09/1994CA2149920A1 Coated membrane for controlled atmosphere package
06/07/1994US5318766 Process for preparing LTL nano-crystalline zeolite compositions
06/07/1994US5318417 Extrusion head for forming polymeric hollow fiber
06/01/1994EP0599791A2 A method of manufacturing a membrane filter
06/01/1994EP0598908A1 Filter and filter element
06/01/1994EP0483143B1 Membrane affinity apparatus and purification methods related thereto
05/1994
05/31/1994US5316568 Method and apparatus for producing fluid flow
05/31/1994CA1329898C Reactive posttreatment for gas separation membranes
05/26/1994WO1994011095A1 High flux hollow fiber membrane
05/25/1994EP0598690A2 High-flux hollow-fiber membrane with enhanced transport capability and process for making same
05/25/1994CN1024629C Apparatus for cleaning blood and its making method
05/24/1994CA1329740C Microporous asymmetric polyamide membranes
05/18/1994EP0597300A2 Polymer membrane containing material specific carriers, process for its production and its utilisation for separating substance compositions
05/18/1994EP0597276A1 N,N'-2.2-3.3-Tetramethylethylene-bis(5-NO2-salicyliden-iminato) cobalt(II) and its use as oxygene carrier
05/17/1994US5312873 Conversion to pendant amide groups on polymer surfaces
05/17/1994CA1329559C Leukocyte separator and method of making the same
05/11/1994WO1994009888A1 Cross-flow microfiltration process
05/11/1994WO1994009886A1 Gas-separation process
05/11/1994EP0596411A2 Composite ultrafiltration membrane
05/11/1994DE4237604A1 Ultrafiltration membrane with low tendency to fouling - has a non-porous, hydrophilic separation layer consisting of a polyamide-polyether block copolymer.
05/11/1994CA2148609A1 Gas separation process
05/10/1994US5310688 Method and apparatus for eluting proteins in affinity membrane process
05/04/1994EP0595465A1 Preparation of LTL nano-crystalline zeolite compositions
05/03/1994US5308494 Method for improving filter efficiency
05/03/1994US5308180 Liquid applicator with metering insert
04/1994
04/27/1994EP0594007A1 Composite microporous membranes
04/27/1994CN1024324C Treatment of permeable membranes
04/26/1994CA1328843C Blood cleaning hollow fiber membrane, method for cleaning blood, and apparatus therefor
04/20/1994EP0593011A1 Process for preparing a composite plasma membrane and their use
04/20/1994EP0592883A1 Method of separating alcohols, alcohol/water mixture or water from oxygen containing organic compound
04/19/1994US5304307 Chargedasymmetric mosaic membrances
04/19/1994CA1328625C Purification process
04/14/1994WO1994007614A1 Method for providing an inner-skinned functionalized coating on the lumen-defining surface of a hollow tube
04/14/1994WO1994007594A2 Hollow fiber membrane incorporating a polyimide and process for preparing same
04/14/1994WO1994007593A1 Improved sensor membranes
04/14/1994CA2145996A1 Improved sensor membranes
04/14/1994CA2108092A1 Process for separating off alkanols, mixtures of alkanols and water or water itself from oxygen containing organic compounds of higher carbon number
04/13/1994EP0591372A1 Inorganic filtration unit.
04/06/1994EP0591117A1 Spacer element between membrane surfaces of a fluid purifier, and a method for their manufacture
04/06/1994EP0590007A1 Applying a fluoropolymer film to a body