| Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060) |
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| 07/25/1989 | US4851394 Glucomannan/polyhydric alcohol composition and film prepared therefrom |
| 07/25/1989 | US4851127 Novel amine-based presursor compounds and composite membranes thereof |
| 07/25/1989 | US4851121 Crosslinking surface with organosulfone compound in alkal; water purification; odorless, nonfoaming |
| 07/25/1989 | US4851120 Anionic polysaccharide separation membranes |
| 07/25/1989 | US4851014 Gas separation membranes derived from polycarbonates, polyesters, and polyestercarbonates containing tetrafluorobisphenol F |
| 07/19/1989 | CN1034004A Semi-permeable membranes with internal discriminating region |
| 07/18/1989 | US4849109 Use of structure with membrane having continuous pores |
| 07/18/1989 | US4849106 Fouling resistant polymer membrane for separation, concentration |
| 07/18/1989 | US4849061 Method of making plastic filter units having a welded cellulose filter |
| 07/18/1989 | CA1257727A1 Hydrophilic silicone-organic copolymer elastomers |
| 07/13/1989 | WO1989006158A1 Process for separating higher hydrocarbons from natural or produced gas streams |
| 07/13/1989 | WO1989006156A1 Molecular sieve arrangement |
| 07/13/1989 | WO1989006153A1 Process for producing composite semipermeable membrane |
| 07/12/1989 | EP0323561A2 Polyesters of bis (2-(4-hydroxyphenyl) hexafluoroisopropyl)- diphenyl ether |
| 07/11/1989 | US4847199 Agglutination immunoassay and kit for determination of a multivalent immune species using a buffered salt wash solution |
| 07/11/1989 | CA1257299A1 Chemically durable porous glass and process for the manufacture thereof |
| 07/05/1989 | EP0323431A2 Gas dehydration membrane process and apparatus |
| 07/05/1989 | EP0323224A2 Polyvinyl formal ultrafiltration membrane and process for producing the same |
| 07/05/1989 | EP0322975A2 Polyketone membranes |
| 07/05/1989 | EP0322866A2 Selective gas permeation membranes and method of manufacturing them |
| 07/05/1989 | EP0322778A2 Bicomponent moisture barrier poly(etherimide) ester films |
| 07/05/1989 | EP0322777A1 Vapor permeable poly(etherimide) ester elastomer films |
| 07/05/1989 | EP0322708A2 Polymers with amide groups in the side chains |
| 07/05/1989 | EP0322604A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 07/05/1989 | CN1033636A Polyimide gas separation membranes |
| 07/04/1989 | US4845132 Hydrophilic porous membrane, method for production thereof, and plasma separator using said membrane |
| 07/04/1989 | US4844809 Method for purifying reaction solution obtained by using microbial cell, immobilized microbial cell, or immobilized enzyme |
| 07/04/1989 | US4844778 Membrane with perforations, method for producing such a membrane and separating device comprising one or more of such membranes |
| 07/04/1989 | US4844719 Vinyl ether sulfonic acid fluorocopolymer |
| 07/04/1989 | US4843733 Process for drying water-wet polycarbonate membranes |
| 06/29/1989 | WO1989005876A1 Production of hollow nylon fibers |
| 06/29/1989 | WO1989005586A1 Process for separating the dissolved and undissolved constituents of milk |
| 06/29/1989 | DE3842093A1 Semipermeable membran aus polybenzoxazol zur trennung von gasen Semipermeable membrane for separating gases from polybenzoxazole |
| 06/28/1989 | EP0321638A2 Polyimide gas separation membranes |
| 06/28/1989 | EP0321569A1 Process for separating liquid mixture |
| 06/27/1989 | US4842740 Membranes prepared from blend of polybenzimidazole with polyarylates |
| 06/27/1989 | US4842620 Process of gas enrichment with porous siliceous-containing material |
| 06/27/1989 | CA1256396A1 Cleaning of conductive membrane electrode in electrochemical cell |
| 06/27/1989 | CA1256388A1 Process for recovering organic vapors from air |
| 06/22/1989 | DE3840175A1 Modified cellulose for biocompatible dialysis membranes |
| 06/22/1989 | DE3840174A1 Biocompatible dialysis membrane composed of cellulose with increased beta-2-microglobulin adsorption |
| 06/21/1989 | EP0321241A2 Membranes from UV-curable resins |
| 06/20/1989 | US4840856 Allyl group-containing oligoethyleneoxypolyphosphazenes, process for their preparation, and their use |
| 06/20/1989 | US4840819 Controlled amount of liquid in support layer |
| 06/20/1989 | US4840646 Separation of oxygen from nitrogen in gas mixtures |
| 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 | EP0320023A2 Macroporous polymeric membranes, their preparation and their use for polymer separation |
| 06/14/1989 | EP0319990A2 Process for preparing composite membranes |
| 06/14/1989 | EP0319938A2 Modified cellulose for biocompatible dialysis membranes |
| 06/14/1989 | EP0319862A2 Biocompatible cellulose membrane for dialysis with increased beta-2-microglobulin adsorption |
| 06/13/1989 | US4839296 Treating hydrophobic polytetrafluoroethylene semipermeable membrane with surfactant to make membrane hydrophilic |
| 06/13/1989 | US4839203 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups |
| 06/13/1989 | US4838900 Permselectivity |
| 06/06/1989 | US4837386 Immersed in fluid to remove surface heat |
| 06/06/1989 | US4837054 Thin film composite membrane prepared by deposition from a solution |
| 06/06/1989 | US4836927 Recovery of dewaxing aid using asymmetric polyimide ultrafiltration membrane and method for producing said membrane |
| 05/31/1989 | EP0317676A1 Dispersion process for ceramic green body |
| 05/31/1989 | CN1033187A Reverse osmosis polyamide semi-permeable membrane |
| 05/30/1989 | US4835229 Metal halide, tertiary amine |
| 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 | EP0316960A2 Gas separation membranes from bisphenol af polycarbonates and polyestercarbonates |
| 05/24/1989 | EP0316571A2 Process for preparation of porous shaped articles |
| 05/24/1989 | EP0316525A2 Polyamide reverse osmosis membranes |
| 05/23/1989 | US4833219 Preparation of substituted polysulfones by metalation |
| 05/23/1989 | US4832713 Gas-selectively permeable membrane and method of forming said membrane |
| 05/23/1989 | US4832712 Gas separating membrane |
| 05/18/1989 | WO1989004339A1 Fibroin moldings, process for their preparation, heparin-immobilizing carrier, and process for its preparation |
| 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 |
| 05/17/1989 | EP0315981A2 Process for separating methane using permeable membrane |
| 05/17/1989 | CN1032932A Porous membrane of sinterable refractory metal oxides or silica |
| 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 |
| 05/16/1989 | CA1254007A1 Preswelling of regenerated cellulose membranes for organic separations and the use thereof |
| 05/10/1989 | EP0315453A2 Porous membranes of sinterable refractory metal oxides or silica |
| 05/10/1989 | EP0315022A2 Filtering device for blood platelet |
| 05/10/1989 | CN1032841A Fuel delivery system |
| 05/09/1989 | US4828773 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics |
| 05/09/1989 | US4828772 Microporous membranes of ultrahigh molecular weight polyethylene |
| 05/09/1989 | US4828708 Reverse osmosis, aromatic polyamide from isophthalic and trimesic acids, interfacial polycondensation |
| 05/09/1989 | US4828700 Rejection enhancing coatings for reverse osmosis membranes |
| 05/03/1989 | EP0208629B1 Process for manufacturing an inorganic membrane support for separation techniques |
| 05/03/1989 | EP0190212B1 Separation of water from organic fluids |
| 05/02/1989 | US4826599 Composite membranes and their manufacture and use |
| 05/02/1989 | CA1253305A1 Anionic microporous membrane, charge modified with water soluble polymer |
| 04/26/1989 | EP0313354A1 Reverse osmosis membranes and process for their production |
| 04/26/1989 | EP0313263A2 Rapid recoverable PTFE and a process for its manufacture |
| 04/26/1989 | EP0312943A2 Cellulose acetate butyrate gas separation membranes |
| 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 |