| 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) |
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| 07/18/1989 | US4849109 Use of structure with membrane having continuous pores |
| 07/18/1989 | US4849106 Fouling resistant polymer membrane for separation, concentration |
| 07/13/1989 | WO1989006153A1 Process for producing composite semipermeable membrane |
| 07/05/1989 | EP0323431A2 Gas dehydration membrane process and apparatus |
| 07/05/1989 | EP0322604A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 07/05/1989 | CN1004679B Producing method of porous membrane |
| 07/04/1989 | US4844805 Reverse osmosis element |
| 06/29/1989 | WO1989005876A1 Production of hollow nylon fibers |
| 06/27/1989 | US4842741 Heterogeneous membranes from highly filled thermoplastic orientable polymers |
| 06/21/1989 | EP0321448A2 Process for preparation of hollow fibers |
| 06/21/1989 | EP0321447A2 Cellulose type hollow fibers |
| 06/21/1989 | EP0321241A2 Membranes from UV-curable resins |
| 06/21/1989 | EP0304426A4 Osmotic distillation process and semipermeable barriers therefor. |
| 06/20/1989 | US4840819 Controlled amount of liquid in support layer |
| 06/20/1989 | US4840733 Fine porous membrane and process for producing the same |
| 06/20/1989 | CA1255860A1 Selectively permeable asymetric membrane of aromatic polyester |
| 06/15/1989 | WO1989005182A1 Hydrolyzed membrane and process for its production |
| 06/15/1989 | WO1989005181A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 06/14/1989 | EP0320033A1 Composite ceramic micropermeable membrane, process and apparatus for producing such membrane |
| 06/14/1989 | EP0319990A2 Process for preparing composite membranes |
| 06/14/1989 | EP0319893A1 Process for manufacturing a filter for micro and ultrafiltration |
| 06/13/1989 | US4839463 Spreading dilute solution and evaporation of solvent |
| 06/13/1989 | US4839203 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups |
| 06/06/1989 | US4837055 Supported membrane and process for its preparation |
| 06/06/1989 | US4837054 Thin film composite membrane prepared by deposition from a solution |
| 06/06/1989 | US4836928 Separation method, separation device and separation apparatus for separating body fluid into respective components |
| 06/01/1989 | WO1989004712A1 Process for removing hazardous substances from water or air |
| 05/31/1989 | EP0317676A1 Dispersion process for ceramic green body |
| 05/31/1989 | CN1033187A Reverse osmosis polyamide semi-permeable membrane |
| 05/30/1989 | US4834886 Process for making alkali resistant hyperfiltration membrane and resulting product |
| 05/30/1989 | US4834882 Hemodialysis membrane |
| 05/30/1989 | CA1254824A1 Supported ion exchange membrane films |
| 05/24/1989 | EP0317399A1 Microporous membrane and method of preparing by irradiation on both sides |
| 05/24/1989 | EP0316571A2 Process for preparation of porous shaped articles |
| 05/24/1989 | EP0316525A2 Polyamide reverse osmosis membranes |
| 05/24/1989 | DE3738880A1 Verfahren zur entfernung von schadstoffen aus wasser oder luft A process for removing pollutants from water or air |
| 05/23/1989 | US4833014 Composite membranes useful for the separation of organic compounds of low molecular weight from aqueous inorganic salts containing solutions |
| 05/23/1989 | US4832997 Production of asymmetrical microporous membranes by double irradiation and asymmetrical membranes |
| 05/23/1989 | US4832713 Gas-selectively permeable membrane and method of forming said membrane |
| 05/18/1989 | WO1989004206A1 Semi-permeable membranes with an internal discriminating region |
| 05/18/1989 | WO1989004201A1 Composite membranes of poly(methyl methacrylate) blends |
| 05/18/1989 | WO1989004200A1 Treatment of permeable membranes |
| 05/18/1989 | WO1989004199A1 Improved composite membranes, their manufacture and their use |
| 05/18/1989 | DE3737931A1 Method for manufacturing a pressure-stable tubular membrane |
| 05/17/1989 | EP0315981A2 Process for separating methane using permeable membrane |
| 05/16/1989 | US4830885 Chlorine-resistant semipermeable membranes |
| 05/16/1989 | US4830796 Extruding the coagulating solution through spinnerets; permeability, ultra-filtration |
| 05/16/1989 | US4830640 Gas separation |
| 05/10/1989 | EP0315420A2 Process for producing an apparatus with hollow fiber membrane for cleaning blood |
| 05/09/1989 | US4828708 Reverse osmosis, aromatic polyamide from isophthalic and trimesic acids, interfacial polycondensation |
| 05/09/1989 | US4828705 Pressure-dependent anisotropic-transport membrane system |
| 05/09/1989 | US4828588 Process for preparation of heterogeneous polysiloxane membrane and membrane produced |
| 05/05/1989 | WO1989003717A1 Device and method for depletion of the leukocyte content of blood and blood components |
| 05/03/1989 | EP0314581A2 Oxygenator using porous hollow fiber membranes |
| 05/03/1989 | EP0208629B1 Process for manufacturing an inorganic membrane support for separation techniques |
| 05/03/1989 | DE3735371A1 Composite membrane |
| 05/02/1989 | US4826642 Method of making a supported microporous membrane |
| 05/02/1989 | US4826599 Composite membranes and their manufacture and use |
| 05/02/1989 | US4826519 Multilayer filter element |
| 04/26/1989 | EP0313354A1 Reverse osmosis membranes and process for their production |
| 04/26/1989 | EP0313348A2 Device and method for depletion of the leukocyte content of blood and blood components |
| 04/26/1989 | EP0313263A2 Rapid recoverable PTFE and a process for its manufacture |
| 04/25/1989 | US4824916 Water-insoluble, crosslinked, sulfonated aromatic polyamide |
| 04/25/1989 | US4824573 Crosslinked composite membrane and process for producing the same |
| 04/25/1989 | US4824569 Hollow fiber for dialysis and method for manufacture thereof |
| 04/25/1989 | US4824568 Casting a polymer solution onto porous support; precipitation |
| 04/25/1989 | US4824444 Gas permselective composite membrane prepared by plasma polymerization coating techniques |
| 04/25/1989 | US4824443 Highly polar solvent |
| 04/19/1989 | EP0312378A2 Method of preparing a thin film composite membrane by deposition from a solution, and use of the membrane |
| 04/19/1989 | EP0312377A2 Method of preparing thin film composite membranes by suspension deposition, and use of such membranes |
| 04/19/1989 | EP0311912A1 Multilayer reverse osmosis membrane in which one layer is poly-meta-phenylene tetrahydrofuran-2,3,4,5-tetracarboxamide |
| 04/19/1989 | EP0311903A2 Molten salt hydrate membranes for the separation of gases |
| 04/19/1989 | EP0135593B1 Hollow fibers for use in dialysis and artificial kidney |
| 04/18/1989 | US4822382 Permselective gas separation; tetramethyl bisphenol a phthalates |
| 04/12/1989 | EP0310722A1 Membrane filter tube and method of preparation and use |
| 04/11/1989 | US4820460 Method of manufacturing a hollow porous fiber |
| 04/04/1989 | US4818596 Waterproof article and method for making a waterproof article |
| 04/04/1989 | US4818452 Method of manufacturing an integral asymmetrical membrane |
| 04/04/1989 | US4818387 Dihydroxydiphenyl sulfone/p,p*-/ and dihydroxybenzenes; heat, acid, alkali, and halogen resistance |
| 04/04/1989 | CA1252064A1 Acid extraction process, namely of boric acid, from a lightly ionised solution |
| 03/29/1989 | EP0309259A2 Immobilized electrolyte membrane and method of preparation thereof |
| 03/28/1989 | US4816072 Dispersion process for ceramic green body |
| 03/23/1989 | WO1989002305A1 Leucocyte-separating filter |
| 03/23/1989 | WO1989002304A1 Leucocyte-separating filter |
| 03/22/1989 | EP0308232A2 Filter and test device containing same, with flow-delaying polymer |
| 03/22/1989 | EP0308153A1 p-Xylylenediamide/diimide composite ro membranes |
| 03/22/1989 | EP0307636A1 Method for effecting dehydration of glycols using a membrane |
| 03/21/1989 | US4814228 Reaction with ethylene carbonate, extrusion, coagulation; ultrafilters; heat, chemical resistant |
| 03/21/1989 | US4814083 Altering pore size distributions |
| 03/21/1989 | US4814082 On or crosslinked to support |
| 03/21/1989 | US4813983 Polysulfone and addition polymer |
| 03/15/1989 | EP0307373A2 Purification process |
| 03/15/1989 | CN1031658A Hollow fibrous membrane of cellulose made by soloent process |
| 03/14/1989 | US4812269 Process for producing hollow fiber semi-permeable membranes |
| 03/14/1989 | US4812238 Membranes prepared via reaction of diazonium compounds or precursors |
| 03/14/1989 | US4812236 Foil with micropores on two layer support which has open macropores |
| 03/09/1989 | WO1989001967A1 Blood purification with cultured renal cells |
| 03/08/1989 | EP0306231A2 Flexible filter element employing filtering sheets formed with bypass openings |
| 03/08/1989 | EP0305929A2 Membranes with bound oligonucleotides and peptides |
| 03/08/1989 | EP0305787A1 A process for manufacturing permselective asymmetric membranes suitable for haemodialysis and the so prepared membranes |