| Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858) |
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| 04/30/1992 | WO1992006742A1 Filter and process for producing the same |
| 04/30/1992 | WO1992006653A1 Material and process for producing the same |
| 04/28/1992 | US5108607 Polyamide-imide copolymer and additive of polyethylene glycol and polyvinylpyrrolidone |
| 04/28/1992 | CA1299449C Composite separation membranes and the preparation and use thereof |
| 04/23/1992 | DE4033344A1 Filter und verfahren zu seiner herstellung Filter and process for its preparation |
| 04/23/1992 | DE4033291A1 Werkstoff und verfahren zu seiner herstellung Material and process for its preparation |
| 04/22/1992 | EP0481517A1 Asymmetric polymer membrane and preparation thereof |
| 04/22/1992 | EP0207951B1 Osmotic concentration by membrane |
| 04/21/1992 | US5106579 Membrane type artificial lung and method for manufacture thereof |
| 04/21/1992 | CA1299033C Membrane type artificial lung and method for manufacture thereof |
| 04/14/1992 | US5104729 Coating with surfactant, hydrogel |
| 04/14/1992 | CA1298739C Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups |
| 04/07/1992 | US5102917 Blending with particular solid and second polymer; extrusion, leaching of second polymer and solid |
| 04/07/1992 | US5102600 Increased draw ratio; membrane for gas separation |
| 04/07/1992 | US5102590 Process for hollow fiber membrane for artificial lung |
| 04/07/1992 | US5102549 Treatment of lower glycol-containing operative fluids |
| 04/07/1992 | US5102539 Method of producing a membrane and a membrane for microfiltration, ultrafiltration, pervaporation or reverse osmosis of suspensions, emulsions and for gas separation |
| 04/02/1992 | WO1992005595A1 Polymer membrane |
| 04/01/1992 | EP0477689A1 Process for the preparation of porous polysulfone media suitable for filtration |
| 03/25/1992 | EP0476875A2 Process for the purification and concentration of biologically active materials |
| 03/25/1992 | EP0476866A1 Improved polymeric membranes |
| 03/25/1992 | EP0476370A2 Process for the separation of water from mixtures containing water and alcohols and/or carboxylic acids and/or carboxylic acid esters |
| 03/25/1992 | EP0476072A1 Dna sequencing using low fluorescence background electroblotting membrane |
| 03/24/1992 | US5098977 Methods and compositions for providing articles having improved biocompatability characteristics |
| 03/24/1992 | US5098569 Modified surface polymers as supports |
| 03/21/1992 | CA2090970A1 Polymer membrane |
| 03/19/1992 | WO1992004176A1 A triaxially oriented polymer membrane |
| 03/19/1992 | WO1992004109A1 Gas separation membrane with ultrathin layer |
| 03/18/1992 | WO1992004971A1 Cationic charge modified microporous membranes |
| 03/17/1992 | US5096640 Method of producing porous hollow fibrous tubes |
| 03/17/1992 | US5096586 Membranes having selective permeability |
| 03/17/1992 | US5096585 Process for preparing protein non-adsorptive microporous polysulfone membranes |
| 03/15/1992 | CA2050504A1 Porous polysulfone media suitable for filtration |
| 03/11/1992 | EP0474617A1 Process for surface modifying a support membrane |
| 03/11/1992 | EP0474370A1 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same |
| 03/04/1992 | EP0472596A1 Surface fluorination of membranes. |
| 03/04/1992 | EP0262187B1 Method for making perforations in a solid sheet material, irradiation device for implementing the method and perforated material thus obtained |
| 03/01/1992 | WO1992003217A1 Membranes having selective permeability |
| 03/01/1992 | CA2088485A1 Membranes having selective permeability |
| 03/01/1992 | CA2050127A1 Polymeric membranes |
| 02/26/1992 | EP0471763A1 Process of preparing cross-linked gas selective membranes |
| 02/25/1992 | US5091216 Reactive post treatment for gas separation membranes |
| 02/25/1992 | US5091087 Coating with a polymer matrix, compression molding to induce partial agglomeration, extracting remaining matrix |
| 02/25/1992 | US5091086 Permeable, porous polymeric membrane with hydrophilic character, methods for preparing said membranes and their use |
| 02/25/1992 | CA1296225C Plugged microporous film |
| 02/18/1992 | US5089299 Composite ceramic micropermeable membrane, process and apparatus for producing such membrane |
| 02/18/1992 | US5089187 Process for producing a semi-permeable membrane by extrusion |
| 02/18/1992 | US5089092 Controlling diameters of pores by changing electrolysis voltage |
| 02/12/1992 | EP0470377A2 Diaphragm for gas-liquid contact, gas-liquid contact apparatus and process for producing liquid containing gas dissolved therein |
| 02/11/1992 | US5087372 Filtration through membrane having iminodiacetic acid groups bound to resin matrix side chains |
| 02/11/1992 | US5087367 Hydrolyzed membrane and process for the preparation of the same |
| 02/06/1992 | WO1992001735A1 Process for chemically, hydrophilically and anionically modifying the surfaces of moulded bodies composed of aromatic groups-containing polymers and modified moulded bodies thus produced |
| 02/06/1992 | WO1992001506A1 Formation of porous materials |
| 02/05/1992 | EP0469657A1 Multilayer membrane and production thereof |
| 02/04/1992 | US5085774 Increasing the draw ratio |
| 02/04/1992 | US5085676 Porous polymeric substrate and polyamide separating layer |
| 02/03/1992 | CA2047782A1 Multilayer membrane and process of manufacturing the same |
| 01/30/1992 | DE4023524A1 Verfahren zur chemischen, hydrophil-anionischen modifizierung von oberflaechen von formkoerpern aus aromatische gruppen aufweisenden polymeren sowie die dabei erhaltenen modifizierten formkoerper Methods for chemical, hydrophilic anionic surface modification of formkoerpern of aromatic groups containing polymer and the thus obtained modified formkoerper |
| 01/29/1992 | EP0467903A1 Process for the preparation of chlorine-resistant polyester semipermeable membranes. |
| 01/28/1992 | US5084220 Membrane filtration apparatus and method of making a membrane filtration unit |
| 01/28/1992 | US5084173 Hydrophilic composite porous membrane, a method of producing the plasma separator |
| 01/28/1992 | CA1294745C Asymmetrical microporous hollow fiber for hemodialysis and a process for manufacturing such fibers |
| 01/23/1992 | WO1992000798A1 Improvements in or relating to flow control |
| 01/23/1992 | DE4021052A1 Hollow membrane of acrylonitrile] polymer with inner fine pore layer - having sepn. activity and coarser pore outer layer with pores extending to outer surface |
| 01/22/1992 | EP0466794A1 Porous articles |
| 01/22/1992 | EP0426686A4 Multifunctional thrombo-resistant coatings and methods of manufacture |
| 01/15/1992 | EP0466470A2 Aromatics/saturates separation using membranes |
| 01/15/1992 | EP0465697A1 Preparation of gas separation membrane and spiral wound gas separation module |
| 01/12/1992 | CA2045161A1 Sulfonated polysulfone membranes for aromatics/saturates separation |
| 01/08/1992 | EP0465380A2 Hemocombatible composite material |
| 01/08/1992 | EP0465306A2 Permeable membrane excellent in biocompatibility |
| 01/08/1992 | EP0464187A1 Coated media for chromatography |
| 01/07/1992 | US5079272 Porous membrane formed from interpenetrating polymer network having hydrophilic surface |
| 01/02/1992 | DE4117391A1 Asbestos-free microporous diaphragms for chlor:alkali cells - made from mixt. of non-modified PTFE and highly functionalised PTFE as hydrophilising agent |
| 01/02/1992 | DE4021051A1 Post-prodn. treatment of hollow-fibre membranes - by two-stage treatment with mixts. of solvent and non-solvent |
| 12/31/1991 | US5076933 Filtration with diethylaminoethyl cellulose filter membrane an d quaternary aminoalkyl salt-coated filters |
| 12/31/1991 | US5076926 Reducing pore size; impregnation, concentration, precipitation ; catalysts supports |
| 12/31/1991 | US5076925 Mixing hydrophobic polymer and hydrophilic polymer dissolving in solvent, coagulating, remorse part of hydrophilic nature of membrane |
| 12/30/1991 | WO1992000132A1 Process and apparatus for removal of dna and viruses |
| 12/30/1991 | CA2084873A1 Process and apparatus for removal of dna and viruses |
| 12/26/1991 | CA2045186A1 Blood compatible composite material |
| 12/24/1991 | US5075427 Polymer surface modification using aqueous stable diazo solution |
| 12/24/1991 | US5075003 Blood cleaning hollow fiber membrane method for cleaning blood, and apparatus therefor |
| 12/17/1991 | US5073265 Methods of manufacturing nucleophilic material modified for improved biocompatibility |
| 12/17/1991 | US5073175 Fluorooxidized polymeric membranes for gas separation and process for preparing them |
| 12/10/1991 | US5071880 Irradiated graft polymerization of epoxy-containing monomer on polyolefin or halogenated olefin substrate; modified with iminodiacetic acid; water treatment |
| 12/10/1991 | US5071554 Polyolefin |
| 12/10/1991 | US5071457 Composite for filtering hot gas and method of its manufacture |
| 12/04/1991 | EP0459893A1 Transparent microperforated material and preparation process |
| 12/04/1991 | EP0458790A1 A method for drying of gases, especially compressed air, a membrane for carrying out said method and a process for the manufacturing of said membrane. |
| 12/03/1991 | US5069945 Ultrapous thin-film membranes |
| 12/03/1991 | CA1292647C Polytetrafluoroethylene coating of polymer surfaces |
| 12/02/1991 | CA2043624A1 Transparent microperforated material; fabrication process |
| 11/28/1991 | DE4016328A1 Polymer composites for sepn. and carrier materials e.g. in dialysis - contains high polymer component consisting of more than 50 per cent cellulose, and sulphonate and/or sulphate contg. polymers |
| 11/26/1991 | US5067970 Asymmetric polyimide membranes |
| 11/21/1991 | EP0456939A1 Hydrophilic porous fluoropolymer membrane |
| 11/19/1991 | US5066401 Immobilizing biochemical material |
| 11/14/1991 | WO1991017204A1 Polyvinylidene fluoride membrane |
| 11/14/1991 | WO1991014706A3 Lectin affinity membranes and methods for using them |
| 11/13/1991 | EP0456143A2 Asymmetric polyimide mebranes |