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)
03/1993
03/24/1993CN2128556Y Convex and concave ion-exchanging film
03/23/1993US5196380 Manganese or alkali metal, semiconductor manufacture
03/23/1993US5196257 Monomolecular porphyrin layers, amphiphilic
03/23/1993CA1314669C Method of manufacturing an integral asymmetrical membrane
03/23/1993CA1314667C Process for producing porous membranes
03/18/1993WO1993004732A1 Methods and devices for treating hemophilia and aids
03/17/1993EP0532199A1 Silicone-derived solvent stable membranes
03/17/1993EP0532198A1 Polyphenylene oxide-derived membranes for separation in organic solvents
03/17/1993EP0532037A1 Tubing and hollow fibers comprising non-crosslinked polyvinyl alcohol hydrogels and method for preparing same
03/17/1993EP0531305A1 Gas permeable thrombo-resistant coatings and methods of manufacture
03/16/1993US5194159 Reclaiming ethylene glycol and propylene glycol from aqueous antifreeze, reverse osmosis
03/16/1993US5194154 Structure for filter or heat exchanger, composed of a fused single crystal acicular ceramic
03/09/1993US5192445 Membrane suitable for the dehydration of organic oxygenates
03/09/1993US5192440 Hollow cellulose dialysis fibers
03/09/1993US5192320 Membranes of polyethylene with hollow fibers
03/04/1993WO1993003829A1 Hollow dialysis filament
03/03/1993EP0529682A2 Membrane filtration unit and cassette, and method of making a membrane filtration unit
03/03/1993EP0529052A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures.
03/03/1993EP0343247B1 Porous polytetrafluoroethylene membrane, separating apparatus using same, and process for their production
03/02/1993US5191151 Use of silver-exchanged ionomer membranes for gas separation
03/02/1993US5191111 Manufacture of isocyanate-substituted isophtholayl chloride
03/02/1993CA1314006C Gas dehydration membrane apparatus
02/1993
02/24/1993EP0528582A1 Durable filtration membrane having optimized molecular weight
02/24/1993EP0527980A1 Specific microsieve, specific composite body.
02/24/1993EP0527913A1 Polyvinylidene fluoride membrane.
02/23/1993US5188734 Ultraporous and microporous integral membranes
02/20/1993CA2071559A1 Durable filtration membrane having optimized molecular weight
02/18/1993WO1993002858A1 Sixeftm-durene polyimide hollow fibers
02/18/1993WO1993002782A1 Membrane structure for osmotic concentration
02/18/1993WO1993002767A1 High selectivity hollow fibers
02/17/1993EP0527348A1 Interfacially synthesized reverse osmosis membranes and processes for preparing the same
02/16/1993US5187010 Microporous hollow fibers of polysulfone having polyacrylic acid immobilized on surface by interpenetrating polymeric network
02/13/1993CA2074057A1 Interfacially synthesized reverse osmosis membranes and processes for preparing the same
02/11/1993DE4226205A1 Porous polyolefin sepg. membrane prepn. - by forming polyolefin film in diluent, cooling, extracting diluent, and evapn. of extracting-solvent
02/10/1993EP0526857A1 Hollow fiber membranes
02/03/1993EP0368974B1 Process for producing silicon caoutchouc tube membranes with mechanical wall reinforcement, development of tube membranes with mechanical wall reinforcement and their use
02/02/1993US5183607 Semipermeable microporous bodies: melt-mixing thermoplastic polymer and leachable glass particles; shaping; leaching without disrupting continuous polymer network
02/02/1993US5183571 Multilayer membrane and process of manufacturing the same
02/02/1993CA2075098A1 Hollow fiber membranes
01/1993
01/27/1993EP0524740A2 Method of dehydrating organic oxygenates
01/27/1993EP0304426B1 Osmotic distillation process and semipermeable barriers therefor
01/27/1993EP0303684B1 Methods of making biocompatible nucleophilic material
01/26/1993US5182024 Separation of hydrocarbon dewaxing and deasphalting solvents from dewaxed and/or deasphalted oil using interfacially polymerized membrane
01/26/1993US5181940 Permselective Gas Separation Membranes
01/23/1993CA2060852A1 Method of dehydrating organic oxygenates
01/20/1993EP0523295A1 Production of supported thin film membranes
01/20/1993EP0513131A4 Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same
01/20/1993EP0354959B1 Membrane type artificial lung and production thereof
01/13/1993EP0299043B1 Microporous asymmetric polyamide membranes
01/12/1993US5178766 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same
01/12/1993CA1312429C Porous membrane for separation of blood components and method for manufacture thereof
01/12/1993CA1312428C Acid gas scrubbing by composite solvent-swollen membranes
01/07/1993WO1993000394A1 Applying a fluoropolymer film to a body
01/07/1993WO1993000154A1 Inorganic filtration unit
01/07/1993EP0521726A1 A water-evaporation conduit for a humidifier
01/07/1993EP0521544A1 Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene)
01/05/1993US5176833 Filters employing particulate porous polymers
01/05/1993US5176724 Polyethersulfone porous support, ultrathin acetylenic polymer film, and interface layer
12/1992
12/30/1992EP0520652A1 Membrane separation process
12/30/1992EP0467903B1 Process for the preparation of chlorine-resistant polyester semipermeable membranes
12/29/1992US5175196 Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene)
12/29/1992CA1311885C Multi-layer laminates of microporous films
12/29/1992CA1311884C Polysulfone hollow fiber membrane and process for making the same
12/26/1992CA2060913A1 Membrane separation process
12/22/1992US5173335 Impregnating substrate with diamine, reacting with isocyanate-substituted acyl halide
12/22/1992US5173235 Stretching at strain rate at temperature lower than melting point of polyolefin
12/22/1992US5173225 Method for making ultra-thin dense skin membrane
12/22/1992US5173191 Interfacially polymerized membranes for the reverse osmosis separation of organic solvent solutions
12/22/1992US5173189 Membrane for separating an organic solvent from a water-organic solvent mixture
12/21/1992CA2070967A1 Hollow fibres of modified poly-(2,6-dimethyl-p-oxyphenylene)
12/21/1992CA2045109A1 Production of supported thin film membranes
12/16/1992EP0518607A2 Membranes having enhanced selectivity and method of producing such membranes
12/15/1992US5171493 Process for extruding semi-permeable membrane having separate hollow passageways
12/15/1992US5171449 Ceramic support, separating layer of polyvinyl alcohol crosslinked with polyaldehyde; water from organo nitrogen compounds
12/15/1992US5171445 Mixing polymer, solvent, nonsolvent, casting into thin layer, passing into solvent extraction quench bath within less than half a second, recovering
12/15/1992EP0527913A4 Polyvinylidene fluoride membrane.
12/15/1992CA1311426C Molten salt hydrate membranes for the separation of gases
12/09/1992EP0516686A1 Separation by carrier mediated transport.
12/08/1992US5169529 Case with a bundle of hollwo fiber membranes; positioning of feed- and strip-fibers; fluid separations
12/02/1992EP0516121A2 Process for producing porous polytetrafluoroethylene film
12/02/1992EP0516094A1 Porous film, method for manufacturing the same, gas permeability control film, and water vapor permeability control film
12/01/1992US5168005 Multiaxially reinforced membrane
12/01/1992US5167825 Supported pervaporation membrane and module containing arrays of membranes
12/01/1992US5167824 Immunochemically reversible binding by protein; resolution of naproxen ester enantiomers
11/1992
11/26/1992WO1992020843A1 Apparatus for forming hollow fibers and said fibers
11/26/1992CA2102925A1 Apparatus for forming hollow fibers and said fibers
11/25/1992EP0515033A1 Liquid membrane modules with minimal effective membrane thickness and methods of making the same
11/25/1992EP0462967B1 Chlorine-resistant semipermeable membranes
11/25/1992CA2043224A1 Semi-permeable membrane producing apparatus
11/24/1992US5166071 Separation of elements defining a fluid flow path through the use of particles
11/24/1992CA1310455C Hollow porous polypropylene membrane for artificial lung
11/19/1992EP0514021A1 Liquid membrane modules with minimal effective membrane thickness and methods of making the same
11/19/1992EP0513796A2 Composite structure and method of making
11/19/1992EP0513392A1 Flat sheet type separating film leaf
11/19/1992EP0513390A1 Porous hollow fiber membrane of polyethylene and production thereof
11/19/1992EP0513389A1 Liquid-filtering film and filtering device using said film
11/19/1992EP0513131A1 Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same
11/19/1992DE4116426A1 Selective removal of components from hydrophobic phase of reverse micellar systems - by pervaporation, per-traction or membrane distn. across selective permeability membrane
11/17/1992US5164088 Pervaporation
11/17/1992US5164087 Polyvinyl alcohol or polyurethane foam