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)
07/1992
07/23/1992WO1992012241A1 A method of preventing the occlusion of a filter, membrane or the like upon separation of contaminants from liquid phase
07/23/1992WO1992011924A1 A smoke filter
07/23/1992WO1992011921A1 Back flushable filtration device and method of forming and using same
07/23/1992CA2059779A1 Membrane for a filtration, gas or liquid separation and pervaporation equipment, and making process of such a membrane
07/22/1992EP0495735A1 Process for manufacturing highly permeable porous tubes from carbon-carbon composite material and their uses
07/19/1992CA2051497A1 Membrane process
07/14/1992US5130166 Method for reducing the pore size of sintered metal filters by application of an alcoholic solution of a metal alkoxide which is converted to an insoluble hydrous metal oxide
07/14/1992US5130065 Dry-wet spinning, washing, aftertreatment, drying, alcohol solvent
07/14/1992US5130025 Membranes for reverse osmosis, ultrafiltration, dialysis and electrodialysis
07/14/1992US5130024 Polytetrafluoroethylene polymer with coating of fluorine copolymer for water permeability
07/14/1992US5129920 Bundles of poly(2,6-dimethyl-p-phenylene) oxide fibers
07/14/1992CA1304897C Porous membrane
07/09/1992WO1992011081A1 Diaphragm for the separation of gas mixtures, process for its production and its use
07/07/1992US5127925 Contacting with polysilicone having solid adsorbent incorporated
07/07/1992CA1304697C Ammonia separation using semipermeable membranes
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
06/30/1992US5126503 Membrane process for dewatering lube oil dewaxing solvents
06/25/1992WO1992010280A1 Thin film composite ultrafiltration membrane
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
06/23/1992US5123937 Using gas permeable breathable membrane
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
06/16/1992US5122273 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
06/11/1992WO1992009358A1 Flat sheet type separating film leaf
06/11/1992WO1992009357A1 Liquid-filtering film and filtering device using said film
06/10/1992EP0489693A1 Charged asymmetric mosaic membranes
06/10/1992EP0489573A1 Separation of hydrocarbon dewaxing and deasphalting solvents from dewaxed and/ or deasphalted oil using interfacially polymerized membrane
06/10/1992EP0489418A1 Novel multicomponent fluid separation membranes
06/10/1992EP0489403A2 Filter for parenteral systems
06/09/1992US5120568 Generating high temperature gas, depressurizing, pumping fluid reactants and impinging to form plasma polymerization
06/09/1992US5120440 Surfactant, hydrophobic polymer insoluble in water and alcohol, wate rsoluble polymer
06/09/1992CA1302903C Method of regenerating a separation means for a liquid medium containing undissolved constituents and a separation apparatus
06/09/1992CA1302677C Hydrophilic article and method of producing same
06/06/1992CA2047112A1 Separation of hydrocarbon dewaxing and deasphalting solvents from dewaxed and/or deasphalted oil using interfacially polymerized membrane
06/05/1992CA2056921A1 Multicomponent fluid separation membranes
06/03/1992EP0488665A1 Adsorbents for the removal of volatile substances from aqueous systems
06/03/1992EP0488095A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
06/03/1992EP0488063A1 Cellulose dialysis hollow fibres
06/03/1992EP0488018A2 Capillary membrane for gas separation
06/03/1992EP0487998A2 Production of membrane capillaries for gas separation
06/02/1992US5118424 Thin film composite membranes from vinyl and related nomomers
05/1992
05/31/1992CA2056020A1 Adsorbents for the removal of volatile substances from aqueous systems
05/28/1992CA2055515A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
05/27/1992EP0486521A1 Blotting methods using polyaldehyde activated membranes
05/26/1992US5116504 Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same
05/19/1992US5114581 Back-flushable filtration device and method of forming and using same
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
05/14/1992WO1992007649A1 Composite membrane for facilitated transport processes
05/14/1992CA2094711A1 Articles having a hydrophilic polymeric shell and method for preparing same
05/13/1992EP0485077A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle
05/13/1992EP0484466A1 Membrane for separating liquid mixtures of substances by pervaporation.
05/12/1992CA1300806C Hydrophilic porous membrane of polyvinylidene fluoride and methodfor production thereof
05/06/1992EP0483143A1 Membrane affinity apparatus and purification methods related thereto.
05/06/1992CA2054046A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle
05/05/1992US5110385 Ion exchange membranes, bonding a vinyl fluoride copolymer, fluorocarbon dispersant
04/1992
04/30/1992WO1992006775A1 Reverse osmosis or nanofiltering membrane and process for its manufacture
04/29/1992EP0482171A1 Membrane for isolating virus from solution
04/29/1992CN1060614A Making technology of reinforcement super filter membrane
04/28/1992US5108607 Polyamide-imide copolymer and additive of polyethylene glycol and polyvinylpyrrolidone
04/28/1992US5108474 Smoke filter
04/28/1992CA1299449C Composite separation membranes and the preparation and use thereof
04/22/1992EP0481517A1 Asymmetric polymer membrane and preparation thereof
04/16/1992WO1992005864A1 Filter for liquor filtration
04/15/1992EP0480599A1 Membrane suitable for the dehydration of organic oxygenates
04/15/1992EP0480039A1 Composite membrane
04/14/1992US5104729 Coating with surfactant, hydrogel
04/14/1992US5104425 Gas separation by adsorbent membranes
04/14/1992CA1298739C Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
04/12/1992CA2049169A1 Membrane suitable for the dehydration of organic oxygenates
04/08/1992EP0479187A1 Filter for liquor filtration
04/08/1992EP0478842A1 Filter for the filtration of human cerebrospinal fluid
04/07/1992US5102600 Increased draw ratio; membrane for gas separation
04/07/1992US5102590 Process for hollow fiber membrane for artificial lung
04/07/1992US5102552 Used for separation processes of gases or liquids
04/07/1992US5102549 Treatment of lower glycol-containing operative fluids
04/07/1992US5102547 Filters formed of poymer fabrics including disperse metals, alloys, water insoluble hydoxides, inorganic or organic salts and soaps of metals; used in micro/ultra/nanofiltration, reverse osmosis, electrodialysis and electrodeionization
04/07/1992US5102539 Method of producing a membrane and a membrane for microfiltration, ultrafiltration, pervaporation or reverse osmosis of suspensions, emulsions and for gas separation
04/02/1992WO1992005595A1 Polymer membrane
04/02/1992WO1992004987A1 Method and apparatus for applying polymeric coating
03/1992
03/29/1992WO1992005865A1 Filtration film
03/29/1992CA2069758A1 Filtration membrane
03/25/1992EP0476875A2 Process for the purification and concentration of biologically active materials
03/25/1992EP0476866A1 Improved polymeric membranes
03/25/1992EP0476370A2 Process for the separation of water from mixtures containing water and alcohols and/or carboxylic acids and/or carboxylic acid esters
03/25/1992EP0476363A1 Zeolite membrane
03/25/1992CN1059737A Oxygen-permeable polymeric membranes
03/25/1992CN1059736A Oxygen-permeable polymeric membranes
03/25/1992CN1059672A Oxygen-separating porous membranes
03/24/1992US5098574 Purification with membranes and filtration
03/24/1992US5098569 Modified surface polymers as supports
03/24/1992US5098566 Osmotic distillation process and semipermeable barriers therefor
03/21/1992CA2090970A1 Polymer membrane
03/19/1992WO1992004109A1 Gas separation membrane with ultrathin layer
03/19/1992DE4105210C1 Cross-flow micro-filter for particle concn. in suspension - is cyclically backflushed to prevent passage of small particles through funnel-shaped pores
03/18/1992EP0475608A1 Membrane and use thereof in an ileostomy bag
03/18/1992EP0475053A1 Oxygen-separating porous membranes