| 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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| 07/19/1994 | US5330830 Heat-resisting porous membrane, hydrophilized heat-resisting porous membrane and production processes thereof |
| 07/13/1994 | EP0606122A1 Ceramic ultrafiltration membrane and method of producing it |
| 07/13/1994 | EP0605470A1 Hydrophilic membranes prepared from polyethersulfone/poly-2-oxazoline/polyvinylpyrrolidone blend. |
| 07/13/1994 | CN1025415C Process for dehydration of gases and composite permeable membranes therefor |
| 07/12/1994 | US5328613 High temperature polymers formed by melt mixing with finely divided glass and leaching the intercommunicating glass |
| 07/06/1994 | EP0605023A1 Method for making an asymmetrical, inorganic, porous structure |
| 07/06/1994 | EP0604883A2 Process for preparing porous hydrophilic membranes |
| 07/06/1994 | EP0604882A2 Semipermeable membranes made of homogeneous mixable polymeric alloys |
| 07/06/1994 | EP0604514A1 Treatment of aqueous media containing organic material |
| 07/06/1994 | EP0589897A4 Ultraporous and microporous membranes and method of making membranes |
| 06/29/1994 | EP0603987A1 Permanent hydrophilic-anionic or hydrophylic-cationic surface layer and process for its manufacture |
| 06/29/1994 | EP0603299A1 Semi-permeable membranes derived from reactive oligomers |
| 06/29/1994 | EP0340262B1 Semi-permeable membranes with an internal discriminating region |
| 06/28/1994 | US5324538 Applying amine and acid halide solutions to surface of microporous substrate to allow condensation, evaporating solvent |
| 06/28/1994 | US5324430 High performance pan composite membranes |
| 06/23/1994 | WO1994007594A3 Hollow fiber membrane incorporating a polyimide and process for preparing same |
| 06/23/1994 | DE4242491A1 Micro:filter with ceramic carrier and oxidic filter medium |
| 06/22/1994 | EP0357781B1 Process for producing composite semipermeable membrane |
| 06/22/1994 | EP0354937B1 Composite membranes of poly(methyl methacrylate) blends |
| 06/22/1994 | CN1088152A Porous polytetrafluoroethylene and preparation |
| 06/21/1994 | US5322922 Copolyamide or copolyimide-amide containing sulfo groups |
| 06/21/1994 | US5322549 Containing 5-succinyl-3-methyl-3-cyclohexene-1,2-dicarboxylic acid repeating units |
| 06/16/1994 | DE4241479A1 Semipermeable membranes from segmented N-alkyl-polyurethane amide(s) - useful for haemodialysis, haemo:diafiltration, ultrafiltration, micro:filtration, reverse osmosis, etc. |
| 06/15/1994 | EP0601942A1 Membranes for ion transport and method for obtaining them |
| 06/15/1994 | EP0601301A1 Membrane elements for reverse osmosis |
| 06/15/1994 | EP0601067A1 Semi-permeable gas separation membranes having non-ionic surfactants disposed on a membrane surface or within membrane structure and processes for making and using the same. |
| 06/15/1994 | EP0600932A1 Hollow dialysis filament. |
| 06/15/1994 | EP0357693B1 Molecular sieve arrangement |
| 06/15/1994 | CN1087841A Polysulfone-based hollow fiber membrane and process for manufacturing the same |
| 06/14/1994 | US5320754 Applying perfluoroether to the surface of fiber or film, coating with perselective polyimide a polymerization product of 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride and 2,3,5,6-tetramethylphenylenediamine momomers |
| 06/14/1994 | US5320650 Fluorinated aromatic polyimide, polyamide and polyamide-imide gas separation membranes |
| 06/14/1994 | CA1330182C Composite membranes for enhanced fluid separation |
| 06/09/1994 | WO1994012875A1 Analyte detection by competitive inhibition of ion channel gating |
| 06/09/1994 | WO1994012465A1 Polyamides and polypyrrolones for fluid separation membranes |
| 06/09/1994 | WO1994012411A1 Storage vessel |
| 06/09/1994 | WO1994012269A1 Membranes having improved selectivity and recovery, and process for making same |
| 06/09/1994 | DE4241259A1 New polyimide(s) for use as membranes - prepd. from long chain aromatic indane and ether group contg. di:amine(s) and standard tetra:carboxylic di:anhydride(s) |
| 06/09/1994 | CA2149920A1 Coated membrane for controlled atmosphere package |
| 06/09/1994 | CA2149767A1 Membranes having improved selectivity and recovery, and process for making same |
| 06/08/1994 | EP0600793A1 Blood compatible materials |
| 06/08/1994 | EP0417287B1 Porous membrane and process for its manufacture |
| 06/07/1994 | US5318766 Process for preparing LTL nano-crystalline zeolite compositions |
| 06/07/1994 | US5318688 Method of preparing a membrane |
| 06/01/1994 | EP0598908A1 Filter and filter element |
| 06/01/1994 | CN1087287A Preparation of charged small-porosity series ultrafiltration membrane |
| 05/31/1994 | CA1329898C Reactive posttreatment for gas separation membranes |
| 05/26/1994 | WO1994011095A1 High flux hollow fiber membrane |
| 05/26/1994 | WO1994004253A3 Polyazole polymer-based membranes for fluid separation |
| 05/25/1994 | EP0598690A2 High-flux hollow-fiber membrane with enhanced transport capability and process for making same |
| 05/24/1994 | CA1329740C Microporous asymmetric polyamide membranes |
| 05/18/1994 | EP0540592B1 Process for chemically, hydrophilically and anionically modifying the surfaces of moulded bodies composed of aromatic groups-containing polymers and modified moulded bodies thus produced |
| 05/18/1994 | EP0516749B1 Immobilized polyethylene oxide star molecules for bioapplications |
| 05/18/1994 | CN1024502C Semipermeable membranes based on specified 4,4'-(1H-alkylidene) bis 2,3,6-triakylphenol |
| 05/17/1994 | US5312873 Conversion to pendant amide groups on polymer surfaces |
| 05/11/1994 | WO1994009888A1 Cross-flow microfiltration process |
| 05/11/1994 | WO1994009886A1 Gas-separation process |
| 05/11/1994 | EP0596447A2 Polyimide and polyamide-imide gas separation membranes |
| 05/11/1994 | EP0596411A2 Composite ultrafiltration membrane |
| 05/11/1994 | EP0596381A1 Process for the separation of trioxane from aqueous mixture |
| 05/11/1994 | EP0515491B1 Inorganic membranes and a process for making inorganic membranes |
| 05/11/1994 | DE4237604A1 Ultrafiltration membrane with low tendency to fouling - has a non-porous, hydrophilic separation layer consisting of a polyamide-polyether block copolymer. |
| 05/11/1994 | CA2148609A1 Gas separation process |
| 05/10/1994 | US5310415 Polyimide and polyamide-imide gas separation membranes |
| 05/10/1994 | US5310414 Fluidized bed, ceramic on support |
| 05/05/1994 | DE4236935A1 Anisotropic porous network with accurately controlled pore size - contg. acryloyl:oxy-benzoyloxy-phenyl acrylate and liquid crystalline cpds., useful in liquid chromatography and membrane prodn. |
| 05/04/1994 | EP0595465A1 Preparation of LTL nano-crystalline zeolite compositions |
| 05/04/1994 | EP0594591A1 Gas separation membranes comprising miscible blends of polyimide polymers |
| 05/04/1994 | CN1086228A Improved hydrophobicity through metal ion activation |
| 05/03/1994 | US5308494 Method for improving filter efficiency |
| 05/03/1994 | US5308489 Blends of polyether copolycarbonates and high molecular weight film-forming thermoplastics |
| 04/28/1994 | WO1994008706A1 Microporous silica membrane, utilisation and fabrication thereof |
| 04/27/1994 | CN1024324C Treatment of permeable membranes |
| 04/26/1994 | US5306632 Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances |
| 04/26/1994 | US5306476 Continuous sulfur removal process |
| 04/26/1994 | US5306411 Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions |
| 04/20/1994 | EP0593219A2 Improved hydrophobicity through metal ion activation |
| 04/20/1994 | EP0592809A1 Composite mixed conductor membranes for producing oxygen |
| 04/20/1994 | EP0592706A1 Use of cellulose ester blend membranes |
| 04/19/1994 | US5304307 Chargedasymmetric mosaic membrances |
| 04/17/1994 | CA2108505A1 Hydrophobicity through metal ion activation |
| 04/14/1994 | WO1994007931A1 Hydrophilic material and semipermeable membrane made therefrom |
| 04/14/1994 | WO1994007594A2 Hollow fiber membrane incorporating a polyimide and process for preparing same |
| 04/14/1994 | WO1994007593A1 Improved sensor membranes |
| 04/14/1994 | CA2145996A1 Improved sensor membranes |
| 04/14/1994 | CA2124579A1 Hydrophilic material and semipermeable membrane made therefrom |
| 04/13/1994 | EP0591463A1 A method of applying molecular sieve crystals to a support, and a loaded support thus obtained |
| 04/13/1994 | EP0591372A1 Inorganic filtration unit. |
| 04/12/1994 | US5302692 High glass transition temperature, low dielectric properties |
| 04/06/1994 | EP0590007A1 Applying a fluoropolymer film to a body |
| 04/06/1994 | EP0589897A1 Ultraporous and microporous membranes and method of making membranes |
| 04/05/1994 | US5300625 Coatings, better solubility |
| 04/05/1994 | US5300494 Delivery systems for quaternary and related compounds |
| 03/31/1994 | WO1994006542A1 Composite metal membrane for hydrogen extraction |
| 03/31/1994 | DE4232496A1 New polyamideimide(s) - used for prodn. of gas-sepn. membranes and membranes contg. dispersed, catalytically active particles of metals, oxide(s), etc |
| 03/26/1994 | CA2106170A1 Process for preparing ltl nano-crystalline zeolite compositions |
| 03/24/1994 | DE4231762A1 Gas separation membrane with improved selectivity and permeability - has separating layer based on inter-penetrating network contg. hairy-rod type polymer and bridged macrocyclic metal complex |
| 03/23/1994 | EP0587588A1 Fluid treated polytetrafluoroethylene products and their manufacture |
| 03/23/1994 | EP0423249B1 Extrusion of hollow fibre membranes |
| 03/23/1994 | EP0408688B1 Porous membranes |
| 03/23/1994 | EP0368846B1 Polytetrafluoroethylene coating of polymer surfaces |