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)
04/1994
04/06/1994EP0589897A1 Ultraporous and microporous membranes and method of making membranes
03/1994
03/31/1994DE4232496A1 New polyamideimide(s) - used for prodn. of gas-sepn. membranes and membranes contg. dispersed, catalytically active particles of metals, oxide(s), etc
03/30/1994EP0589133A1 Charge mosaic membrane and production process thereof
03/29/1994US5298206 Method and apparatus for casting hollow fiber membranes
03/26/1994CA2106170A1 Process for preparing ltl nano-crystalline zeolite compositions
03/24/1994DE4231762A1 Gas separation membrane with improved selectivity and permeability - has separating layer based on inter-penetrating network contg. hairy-rod type polymer and bridged macrocyclic metal complex
03/23/1994EP0423249B1 Extrusion of hollow fibre membranes
03/23/1994EP0408688B1 Porous membranes
03/23/1994EP0344312B1 Hydrophilic, porous polyvinylidene fluoride membrane and process for its preparation
03/22/1994US5296144 Composite membrane of a hydrophilic asymmetric membrane coated with an organosiloxane block copolymer
03/17/1994WO1994005406A1 Polysulphone membrane and process for producing the same
03/17/1994WO1994005403A1 Filtration medium and method for making same
03/17/1994WO1994005402A1 Filtration medium including substrate-supported porous membrane and method for the manufacture thereof
03/17/1994CA2142719A1 Filtration medium and method for making same
03/17/1994CA2142718A1 Filtration medium including substrate-supported porous membrane and method for the manufacture thereof
03/16/1994EP0586559A1 Apparatus for forming hollow fibers and said fibers.
03/15/1994US5294487 Composite layered material containing a silicone resin substrate
03/15/1994US5294401 Blood gas exchange
03/15/1994US5294346 Composite microporous membranes
03/15/1994US5294342 Polyurethanes
03/15/1994US5294338 Porous polyethylene hollow fiber membrane of large pore diameter, production process thereof, and hydrophilized porous polyethylene hollow fiber membranes
03/15/1994CA1327768C Composite porous membranes from uv-curable resins, apparatus containing same and a process for making same
03/10/1994DE4230077A1 Polysulfonmembran und Verfahren zu deren Herstellung Polysulfone membrane and processes for their preparation
03/09/1994EP0585436A1 Immobilization of chemical species in crosslinked matrices
03/09/1994EP0378684B1 Leucocyte-separating process
03/09/1994CN2158300Y Single molecular film maker
03/09/1994CN2158299Y Ellipse quide plate for ultrafilter frame
03/08/1994US5292438 Filtration medium including uniformly porous planar substrate and uniformly spaced apart thermoplastic resin
03/03/1994WO1994004507A1 Basket porphyrin oxygen carriers
03/03/1994WO1994004250A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
03/02/1994EP0585152A1 Monolith ceramic support for tangential filtration membrane
03/02/1994EP0584411A1 Separation of organic oxygenates
03/01/1994US5290452 Crosslinked polyester amide membranes and their use for organic separations
03/01/1994US5290448 Copolymer with acrylic ester and ionic monomer like methallyl sulfonic acid
02/1994
02/23/1994CN1023866C Composite reverse osmosis polyamide membrane and its making method
02/22/1994US5288517 Method of forming planar membrane
02/22/1994US5288385 Supported, mechanically stable bipolar membrane for electrodialysis
02/22/1994US5288304 Composite carbon fluid separation membranes
02/21/1994EP0630281A4 Pleated poly(tetra-fluoro ethylene) filter medium and support.
02/16/1994EP0583234A2 Solid poly-amphiphilic polymer having use in a separation process
02/16/1994EP0340217B1 Ultrafiltration thin film membranes
02/16/1994CN1081933A Molding press for unimolecular film
02/16/1994CN1081932A Lift-type molding press for unimolecular film
02/15/1994US5286449 Casing with bundle of hollow fibers of membranous porous resin matrix having ligands linked to surface
02/15/1994US5286324 Polytetrafluoroethylene resin porous membrane, separator making use of the porous membrane and methods of producing the porous membrane and the separator
02/15/1994US5286280 Composite gas separation membrane having a gutter layer comprising a crosslinked polar phenyl-containing - organopolysiloxane, and method for making the same -
02/09/1994EP0582184A1 Hydrogen recovery by adsorbent membranes
02/04/1994CA2101373A1 Hydrogen recovery by adsorbent membranes
02/02/1994EP0580879A1 Process for increasing the dimensional and spinning stability of capillar hollow membranes
02/01/1994US5282965 Surface of fluorine-containing polymer rendered hydrophilic by low temperature plasma treatment; ultrafiltration; microfiltration
01/1994
01/26/1994EP0579749A1 Fiber spinning process and product thereof.
01/26/1994EP0579630A1 Membranes with immobilized microorganisms thereon and/or therein, process for obtaining such membranes, reactor comprising said membranes and process involving the use of said membranes, in particular for the elimination of metals or the degradation of xenobiotic organic compounds
01/25/1994US5281337 Membrane separation process
01/18/1994US5279739 Durable filtration membrane having optimized molecular weight
01/18/1994CA1326116C Fluoro-oxidized polymeric membranes for gas separation and process for preparing them
01/11/1994US5277851 Process of making a porous hollow fiber membrane
01/11/1994US5277812 Cationic polymer filter
01/11/1994US5277811 Homogeneous precipitates
01/11/1994CA1325974C Device and method for depletion of the leukocyte content of blood and blood components
01/11/1994CA1325871C Hollow filament within a hollow filament composite fiber having spacing means and spinneret for production thereof
01/06/1994WO1994000222A1 Hollow fiber membrane incorporating a surfactant and process for preparing same
01/06/1994WO1994000166A1 Method for producing viral protective barrier materials
01/06/1994CA2139357A1 Method for producing viral protective barrier materials
01/05/1994EP0576659A1 Rectifying dialyzer, membrane and process
01/05/1994CN1080206A Thin-film composite membrane
01/04/1994US5275738 Filter device for acids and process for filtering inorganic acids
01/04/1994US5275725 Flat separation membrane leaf and rotary separation apparatus containing flat membranes
01/04/1994CA2073099A1 Separation of organic oxygenates
01/04/1994CA1325770C Adsorber module for whole blood treatment and an adsorber apparatus containing the adsorber module
12/1993
12/29/1993EP0576343A2 A composite filter material
12/29/1993EP0575945A2 Composite porous carbonaceous membranes
12/29/1993EP0575653A1 Process for the increase of strength of the highly permeable capillary hollow membranes
12/29/1993CN1079913A Blood cleaning hollow fiber membrane, method for cleaning blood, and apparatus therefor
12/29/1993CN1023297C Tubesheet for semipermeable membrane devices
12/28/1993US5274047 Semipermeable composite membrane, a process for the manufacture thereof, as well as application of such membranes for the separations of components in an organic liquid phase or in the vapor phase
12/28/1993US5273689 Water-evaporation conduit for a humidifier
12/28/1993CA1325501C Hemodialysis method and membrane
12/23/1993WO1993025301A1 Nanochannel filter
12/23/1993WO1993025300A1 Ultrathin composite membranes
12/22/1993EP0574957A2 Acrylonitrile- and polyvinylidene fluoride-derived membranes
12/22/1993EP0574699A2 Cellulose acetate dialysis membrane
12/22/1993EP0574588A1 Biaxially oriented high-molecular polyethylene film and production thereof, and surface-modified, biaxially oriented high-molecular polyethylene film and production thereof
12/22/1993EP0570384A4 Back flushable filtration device and method of forming and using same
12/21/1993US5271843 Chlorine-tolerant, thin-film composite membrane
12/21/1993US5271839 Patterned porous polymeric product and process
12/14/1993US5269934 Gelation agent
12/14/1993CA1325142C Tetrakis-amido high flux membranes
12/14/1993CA1325086C Macroporous, asymmetric, hydrophilic polyaramide membranes
12/08/1993EP0299063B1 Hydrophilic article and method of producing same
12/08/1993CN1022982C Improved composite membran of poly (methyl methacrylate) blends, their manufacture and their use
12/01/1993EP0572274A2 Novel high flux hollow fiber membrane
12/01/1993EP0571953A1 Hydrophilic fiber sheet and process for producing the same
12/01/1993EP0571871A2 Method for preparing a hydrophilic membrane
12/01/1993EP0392010B1 Body fluid filter having flat film permeative membranes having protrusions
11/1993
11/30/1993US5266391 Composite porous membranes
11/30/1993US5266207 Polyphosphazene
11/30/1993US5265734 Silicon-derived solvent stable membranes
11/30/1993CA2096895A1 Novel high flux hollow fiber membrane
11/30/1993CA1324738C Process for making highly permeable coated composite hollow fiber membranes
11/25/1993WO1993023155A1 Thin-film composite membrane