Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
10/1992
10/13/1992US5154827 Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same
10/07/1992EP0506916A1 Nose-filter and process for producing the same
10/06/1992US5152894 Aromatic polyamide
09/1992
09/29/1992US5151227 Process for continuous spinning of hollow-fiber membranes using a solvent mixture as a precipitation medium
09/29/1992US5151217 Micro-emulsions
09/29/1992US5151193 Membranes for ultrafiltration
09/29/1992US5151189 Polyether sulfone substrate and a polymer additive of polyvinylpyrrolidone and polyethylene glycol and a charge modifier polyethyleneimine-epichlorohydrin resin
09/29/1992US5151183 Reduction of membrane fouling by surface fluorination
09/23/1992EP0504954A1 Microporous film of polyethylene and process for the production thereof
09/23/1992EP0504839A1 Separation process of catalysts from suspensions by filtration
09/23/1992EP0504686A2 Process for continuous spinning of hollow-fiber membranes using a solvent mixture as a precipitation medium
09/22/1992CA1307632C Forming membrane structure by applying protein suspension to carrier
09/20/1992CA2063324A1 Process for separating catalysts from suspensions by filtration
09/19/1992CA2061104A1 Process for continuous spinning of hollow-fiber membranes using a solvent mixture as a precipitation medium
09/17/1992WO1992015637A2 Process for modifying the surface of mouldings, mouldings so produced and their use for separating substances by adsorption
09/17/1992WO1992015633A2 Improved management of waste solution containing photoresist materials
09/17/1992WO1992015408A1 Specific microsieve, specific composite body
09/17/1992DE4108245A1 Recovery of polar aprotic solvent esp. DMSO from aq. soln. - by sepg. and regenerating solvent after conversion to less water-miscible form
09/16/1992EP0503783A2 Extruded porous structure
09/15/1992US5147549 Membrane separation process
09/12/1992CA2062449A1 Extruded porous structure
09/10/1992DE4207171A1 Surface-modified membranes, etc. useful for adsorptive sepn. - by forming a layer of special polymer on the substrate surface and then grafting with unsatd. monomers
09/08/1992US5146009 Esterification of inorganic acid with olefin, hydrolysis to obtain alcohol, permselectivity
09/08/1992US5145583 Hemodialysis, acrylonitrile copolymer with a sulfonic monomer, hydrophobic polymer
09/03/1992WO1992014783A1 Hydrophilic polymer alloy, fiber and porous film produced therefrom, and production of the same
09/01/1992US5143616 Bonding membrane coated substrate to surface of support by casting from solution in which support is slightly soluble, ultrafiltration
09/01/1992US5143614 Membrane device for filtration, separation, or catalytic reaction
08/1992
08/26/1992EP0500173A1 Microporous film and process for the production thereof
08/26/1992EP0486521A4 Blotting methods using polyaldehyde activated membranes
08/26/1992EP0476072A4 Dna sequencing using low fluorescence background electroblotting membrane
08/25/1992US5141806 Chromatographic packing, activated catalysts
08/25/1992US5141611 Using polyamide adsorbent
08/25/1992US5141530 Polycarbonate, polyester, and polyestercarbonate semi-permeable gas separation membranes possessing improved gas selectivity and recovery, and processes for making and using the same
08/19/1992EP0499381A1 Membranes
08/19/1992EP0498969A1 Treatment of lower glycol-containing operative fluids
08/18/1992US5139881 Modified polymeric surfaces and process for preparing same
08/18/1992US5139712 Controlled pore size, only water present is from air humidity
08/18/1992US5139529 Porous polypropylene membrane and methods for production thereof
08/16/1992CA2060588A1 Membranes
08/12/1992EP0498596A1 Process for the manufacture of thin film composite membranes
08/12/1992EP0498414A2 Porous hollow fiber membrane of polypropylene and production thereof
08/12/1992EP0498348A1 A composite membrane that includes a separation membrane
08/11/1992US5137635 Polyamideether copolymer
08/11/1992US5137633 Hydrophobic membrane having hydrophilic and charged surface and process
08/05/1992EP0497673A1 Medical material, method for production thereof, and medical apparatus
08/05/1992EP0497334A1 Fixed plate casting system
08/05/1992EP0497185A1 Process for preparing protein non-adsorptive microporous polysulfone membranes
08/05/1992EP0484462A4 Process for treating a porous substrate to achieve improved water and oil repellency
08/04/1992US5136032 Method for separating phosphopolyol compounds using a separating agent
07/1992
07/31/1992CA2060258A1 Fixed plate casting system
07/29/1992CN1063117A Dloxole /tfe copolymer composites
07/29/1992CA2057092A1 Process for preparing protein non-adsorptive microporous polysulfone membranes
07/28/1992US5133864 Ion exchanger, ethylene-acrylic acid copolymer
07/22/1992EP0495550A2 Temperature resistant mircroporous film
07/21/1992US5131927 Reactive treatment of composite gas separation membranes
07/14/1992US5130025 Membranes for reverse osmosis, ultrafiltration, dialysis and electrodialysis
07/14/1992US5130024 Polytetrafluoroethylene polymer with coating of fluorine copolymer for water permeability
07/14/1992CA1304897C Porous membrane
07/09/1992WO1992011081A1 Diaphragm for the separation of gas mixtures, process for its production and its use
07/07/1992US5128041 Microporous membrane, method of manufacture, and method of use
07/01/1992EP0492446A2 Microporous membranes from poly(ether-etherketone)-type polymers and low melting point crystallizable polymers, and a process for making the same
06/1992
06/25/1992DE4040363A1 Polymere fuer die herstellung von folien, membranen, formkoerpern und funktionalisierten oberflaechen auf basis von polysacchariden Polymers for the production of films membranes, formkoerpern and functionalized surfaces based on polysaccharidic
06/24/1992EP0490950A1 Process for surface-grafting of formed materials, in particular also microporous membranes made from nitrogen containing polymers.
06/24/1992EP0490938A1 Microporous adsorbent.
06/23/1992US5124128 Dispersing insoluble filler into solution of incompatible polymers, casting on support
06/17/1992EP0490863A1 Surface-modified support membrane and process therefor
06/17/1992CN1017069B Hollow fiber film used in artificial lung, its manufacture and artificial lung using this kind of film
06/16/1992US5122318 Process for producing an atmosphere for the manufacture of high performing composite elements
06/16/1992US5122273 Hydrophilic membrane, process for producing a hydrophilic membrane
06/14/1992CA2057553A1 Surface-modified support membrane and process therefor
06/11/1992WO1992009359A1 Large-pore-diameter porous hollow yarn membrane of polyethylene, production thereof, and hydrophilic porous hollow yarn membrane of polyethylene
06/11/1992WO1992009357A1 Liquid-filtering film and filtering device using said film
06/10/1992EP0489693A1 Charged asymmetric mosaic membranes
06/10/1992EP0489418A1 Novel multicomponent fluid separation membranes
06/09/1992US5120440 Surfactant, hydrophobic polymer insoluble in water and alcohol, wate rsoluble polymer
06/09/1992CA1302677C Hydrophilic article and method of producing same
06/05/1992CA2056921A1 Multicomponent fluid separation membranes
06/04/1992WO1992009353A1 Dioxole/tfe copolymer composites
06/03/1992EP0488095A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
06/03/1992EP0487998A2 Production of membrane capillaries for gas separation
06/02/1992CA1302177C Polyvinylidene difluoride structure and method of making
05/1992
05/28/1992CA2055515A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
05/27/1992EP0486521A1 Blotting methods using polyaldehyde activated membranes
05/26/1992US5116650 Dioxole/tfe copolymer composites
05/26/1992US5116504 Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same
05/26/1992US5116361 Sulfonated polyethyleneoxide-substituted polymers with improved blood compatibility
05/19/1992US5114585 Charged porous filter
05/19/1992US5114515 Method for forming polymer composite films using removable substrates
05/19/1992CA1300836C Non-adsorptive semipermeable filtration membrane
05/14/1992WO1992007899A2 Articles having a hydrophilic polymeric shell and method for preparing same
05/14/1992CA2094711A1 Articles having a hydrophilic polymeric shell and method for preparing same
05/13/1992EP0484462A1 Process for treating a porous substrate to achieve improved water and oil repellency.
05/12/1992US5112941 Aromatic polymide separation membrane
05/12/1992US5112892 Casting a solution of a polymer on a support and coagulation
05/12/1992US5112736 Dna sequencing using fluorescence background electroblotting membrane
05/12/1992US5112491 Management of waste solution containing photoresist materials
05/12/1992CA1300806C Hydrophilic porous membrane of polyvinylidene fluoride and methodfor production thereof
05/06/1992EP0483143A1 Membrane affinity apparatus and purification methods related thereto.
05/05/1992US5110385 Ion exchange membranes, bonding a vinyl fluoride copolymer, fluorocarbon dispersant
04/1992
04/30/1992WO1992006774A1 Membrane-type filter and process of making