Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
06/1994
06/23/1994CA2150248A1 Liquid applicator with metering insert
06/22/1994EP0354937B1 Composite membranes of poly(methyl methacrylate) blends
06/22/1994CN1088152A Porous polytetrafluoroethylene and preparation
06/15/1994EP0601633A1 Composite membrane with high selectivity and flux and process for the manufacture thereof
06/15/1994EP0601067A1 Semi-permeable gas separation membranes having non-ionic surfactants disposed on a membrane surface or within membrane structure and processes for making and using the same.
06/15/1994EP0601041A1 Polymer treatments
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
06/14/1994CA1330182C Composite membranes for enhanced fluid separation
06/09/1994WO1994012269A1 Membranes having improved selectivity and recovery, and process for making same
06/09/1994CA2149767A1 Membranes having improved selectivity and recovery, and process for making same
06/07/1994US5318417 Extrusion head for forming polymeric hollow fiber
06/01/1994EP0483143B1 Membrane affinity apparatus and purification methods related thereto
06/01/1994CN1087287A Preparation of charged small-porosity series ultrafiltration membrane
05/1994
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
05/24/1994US5314857 Microporous structure with layered interstitial surface treatment, and method and apparatus for preparation thereof
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
05/18/1994EP0540592B1 Process for chemically, hydrophilically and anionically modifying the surfaces of moulded bodies composed of aromatic groups-containing polymers and modified moulded bodies thus produced
05/18/1994EP0516749B1 Immobilized polyethylene oxide star molecules for bioapplications
05/17/1994US5312873 Conversion to pendant amide groups on polymer surfaces
05/10/1994US5310688 Method and apparatus for eluting proteins in affinity membrane process
05/05/1994DE4236935A1 Anisotropic porous network with accurately controlled pore size - contg. acryloyl:oxy-benzoyloxy-phenyl acrylate and liquid crystalline cpds., useful in liquid chromatography and membrane prodn.
05/04/1994EP0595201A2 Method for making semipermeable polymer membranes
05/03/1994US5308180 Liquid applicator with metering insert
04/1994
04/28/1994WO1994009063A1 Pore-size selective modification of porous materials
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
04/19/1994US5304307 Chargedasymmetric mosaic membrances
04/14/1994WO1994007931A1 Hydrophilic material and semipermeable membrane made therefrom
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
04/14/1994CA2124579A1 Hydrophilic material and semipermeable membrane made therefrom
04/06/1994EP0590007A1 Applying a fluoropolymer film to a body
04/06/1994EP0589897A1 Ultraporous and microporous membranes and method of making membranes
03/1994
03/31/1994WO1994006850A1 Heterogeneous membrane and method
03/23/1994EP0587988A2 Oleophobic and/or permanent hydrophobic modification at polymeric surfaces, process for their preparation and application
03/23/1994EP0587588A1 Fluid treated polytetrafluoroethylene products and their manufacture
03/23/1994EP0423249B1 Extrusion of hollow fibre membranes
03/23/1994EP0408688B1 Porous membranes
03/23/1994EP0368846B1 Polytetrafluoroethylene coating of polymer surfaces
03/23/1994EP0344312B1 Hydrophilic, porous polyvinylidene fluoride membrane and process for its preparation
03/15/1994US5294401 Blood gas exchange
03/15/1994US5294338 Porous polyethylene hollow fiber membrane of large pore diameter, production process thereof, and hydrophilized porous polyethylene hollow fiber membranes
03/10/1994DE4229477A1 Prepn. of a highly porous membrane - by selective removal of polymers; useful as testing strips in urine analysis
03/09/1994EP0586268A1 A pathogenic substance removing material and a blood filter comprising said material
03/09/1994EP0585436A1 Immobilization of chemical species in crosslinked matrices
03/03/1994WO1993022055A3 Fluid handling in microfabricated analytical devices
02/1994
02/22/1994US5288304 Composite carbon fluid separation membranes
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
02/15/1994US5286382 Polymer substrate whose surface is modified by crosslinked polymer with specific surface tension
02/15/1994US5286324 Polytetrafluoroethylene resin porous membrane, separator making use of the porous membrane and methods of producing the porous membrane and the separator
02/15/1994US5286279 Gas permeable coated porous membranes
02/15/1994CA1327023C Rotary filtration device with hyperphilic membrane
02/02/1994EP0581168A1 Hydrophobic porous membranes, process for the manufacture thereof and their use
02/02/1994EP0580879A1 Process for increasing the dimensional and spinning stability of capillar hollow membranes
02/02/1994EP0580871A1 Water-soluble cellulose derivative and biocompatible material
02/01/1994US5282971 Cationic polymers having quaternary ammonium group covalently bonded to membrane surface as graft copolymers; permselectivity
02/01/1994US5282965 Surface of fluorine-containing polymer rendered hydrophilic by low temperature plasma treatment; ultrafiltration; microfiltration
01/1994
01/25/1994CA1326418C Extracorporeal blood de-heparinization system
01/18/1994US5280078 Hydrophilic surface, water insoluble
01/18/1994US5279856 Hydrophilic porous membrane, method of manufacturing the same and liquid filter using same
01/18/1994US5279739 Durable filtration membrane having optimized molecular weight
01/18/1994US5279738 Permeable membrane excellent in biocompatibility
01/18/1994US5279735 Hemodialysis membrane cartridge; aqueous percarboxylic acid and azo dye solution
01/18/1994CA1326116C Fluoro-oxidized polymeric membranes for gas separation and process for preparing them
01/12/1994EP0578210A2 Porous polymeric structures and a method of making such structures by means of heat-induced phase separation
01/11/1994US5277851 Process of making a porous hollow fiber membrane
01/11/1994US5277812 Cationic polymer filter
01/11/1994US5277811 Homogeneous precipitates
01/06/1994WO1994000511A1 Porous polytetrafluoroethylene and preparation
01/06/1994WO1994000222A1 Hollow fiber membrane incorporating a surfactant and process for preparing same
01/06/1994WO1994000221A1 Hydrophilic membranes
01/06/1994CA2138250A1 Porous polytetrafluoroethylene and preparation
01/05/1994EP0576830A1 Membrane and process for making the same
01/04/1994US5275838 Immobilized polyethylene oxide star molecules for bioapplications
01/04/1994US5275766 Method for making semi-permeable polymer membranes
01/04/1994US5275738 Filter device for acids and process for filtering inorganic acids
01/04/1994CA1325770C Adsorber module for whole blood treatment and an adsorber apparatus containing the adsorber module
12/1993
12/29/1993EP0575704A1 Process for drying porous ultrafiltration membranes
12/29/1993EP0575653A1 Process for the increase of strength of the highly permeable capillary hollow membranes
12/28/1993US5273689 Water-evaporation conduit for a humidifier
12/23/1993WO1993025301A1 Nanochannel filter
12/23/1993WO1993025247A1 Immobilized polyethylene oxide star molecules for bioapplications
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
12/21/1993US5271842 Contaminant removal system and process
12/21/1993US5271839 Patterned porous polymeric product and process
12/21/1993CA1325405C Porous hydrophilic polypropylene membrane, method for production thereof, and blood plasma separation apparatus
12/15/1993EP0369014B1 Hydrophilic porous membrane, process for its production and plasma-separating apparatus