| 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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| 08/10/1999 | US5936004 Strongly basic anion-exchanging molded bodies and a method of manufacturing the same |
| 08/10/1999 | US5935646 Depositing an inorganic-organic polymer hybird having at least one organic constituent and inorganic constituent, on a porous substrate and removing at least a portion of the organic constituent forming a porous film; small pore size |
| 08/10/1999 | US5935533 Hermetic sealed composite |
| 08/10/1999 | US5935440 Depositing film of crystalline zeolite material on a porous support and contacting membrane with silicic acid or mixture of silicic acids |
| 08/10/1999 | US5935298 Solid electrolyte ionic conductor oxygen production with steam purge |
| 08/10/1999 | CA2134476C Fluid handling in microfabricated analytical devices |
| 08/05/1999 | WO1999038897A1 Cross-linked sulphonated polymers and method for preparing same |
| 08/05/1999 | WO1999038842A1 Crosslinkable bi-sulphonyl derivatives and their uses for preparing ion-exchanging membranes |
| 08/05/1999 | WO1999038604A1 Expanded porous thermoplastic polymer membranes and method and device for the production thereof |
| 08/05/1999 | DE19803362A1 Geschäumte poröse Membranen aus thermoplastischen Polymeren sowie Verfahren und Vorrichtung zu ihrer Herstellung Foamed porous membranes of thermoplastic polymers as well as methods and apparatus for their preparation |
| 08/03/1999 | US5932361 Ceramic based membranes |
| 08/03/1999 | US5932291 Ormocer coated papermachine clothing |
| 08/03/1999 | US5932104 Filtration membrane for oleophilic organic liquids, method for producing it, and method for filtering oleophilic organic liquids |
| 08/03/1999 | US5931987 Apparatus and methods for gas extraction |
| 07/29/1999 | DE19758536A1 Preparation of acetaldehyde from ethylene and oxygen |
| 07/28/1999 | EP0931763A1 Fluid separation device comprising a mixed conducting multicomponent metallic oxide membrane |
| 07/28/1999 | EP0931583A1 Spiral wound type membrane module |
| 07/28/1999 | EP0931097A1 Carbohydrate purification using ultrafiltration, reverse osmosis and nanofiltration |
| 07/28/1999 | CN1224435A Method for producing cellulose formed parts |
| 07/28/1999 | CN1224081A Electrocatalytic process for gas clean-up |
| 07/28/1999 | CN1224080A Electrochemical reactor for reacting oxygen-consuming gas with oxygen-containing gas |
| 07/28/1999 | CN1044333C Modified poly (phenylene oxide) based membranes for enhanced fluid separation and preparing method thereof |
| 07/27/1999 | US5929587 Method and apparatus for controlling servomotor in two inertial systems |
| 07/27/1999 | US5928880 Separating target cells from a fluid sample using bound proteins in multicompartmented container; quick, efficient diagnosis |
| 07/27/1999 | US5928792 Process for making surface modified porous membrane with perfluorocarbon copolymer |
| 07/27/1999 | US5928774 Highly asymmetric ultrafiltration membranes |
| 07/27/1999 | US5928745 Vapor barrier comprising a cyclodextrin composition. |
| 07/27/1999 | US5928582 Irradiation and thermal induction phase separation techniques, during manufacture, microsphereulites are created by irradiation of curable agents in a casted polyolefin film |
| 07/27/1999 | US5928410 Supported gas separation membrane, process for its manufacture and use of the membrane in the separation of gases |
| 07/27/1999 | CA2171669C Compositions capable of operating under high carbon dioxide partial pressures for use in solid-state oxygen producing devices |
| 07/22/1999 | WO1999025788A3 Liquid crystalline single crystal hydrogels with high double refraction |
| 07/21/1999 | EP0804961A4 Porous fluorocarbon membrane, method of producing it and a cartridge filter based on it |
| 07/21/1999 | CN1223600A Method for filtering a three-phased reaction mixture |
| 07/21/1999 | CN1223596A Liquid chromatography column |
| 07/20/1999 | US5925591 Process for the production of hollow carbon fiber membranes |
| 07/20/1999 | US5925254 Complexing isotopes in solution with chelating agent, nanofiltration to remove resulting radioactive chelate compound and recovering sodium-containing permeate |
| 07/15/1999 | DE19811997C1 Solvent- and acid-stable copolyacrylonitrile membrane suitable for autoclave sterilization |
| 07/14/1999 | EP0838084A4 Multilayer high vertical aspect ratio thin film structures |
| 07/14/1999 | EP0804310A4 Process for the production of porous membranes |
| 07/13/1999 | USRE36249 Low outgassing; useful as a point of use filter for semiconductor process gases |
| 07/13/1999 | US5922791 A plurality of polyimide blends comprising a solvent, and a critical solution temperature adjustment agent to enhance the miscibility of polyimides in solution |
| 07/13/1999 | US5922594 Contacting substrate coated with self-assembled monolayer of straight long chain molecules with aqueous solution of micelles or vesicle liposomes which then covalently bond to functional groups of monolayer |
| 07/13/1999 | US5922210 Tangential flow planar microfabricated fluid filter and method of using thereof |
| 07/13/1999 | US5922104 Separation membranes prepared from polyamide polymers having 2,2'-bis (trifluoromethyl) biphenyl units and a process of separating gaseous mixtures using them |
| 07/08/1999 | WO1999033545A1 Method for preparing composite membrane for separation of hydrogen gas |
| 07/08/1999 | DE19817364C1 Hydrophilic asymmetric membrane used in ultrafiltration and reverse osmosis |
| 07/07/1999 | EP0927572A2 A polysulfone based hollow fiber membrane, and a process for preparing the same |
| 07/07/1999 | CN1222169A High water content porous polymer |
| 07/07/1999 | CN1221812A Element for use in electrochemical reactor or reactor cell |
| 07/07/1999 | CN1221811A Electrochemical process for producing unsaturated hydrocarbon compounds from stauarated hydrocarbon compound |
| 07/07/1999 | CN1221649A Method for prepn. of permeation vaporization compound membrane |
| 07/07/1999 | CN1043961C Prepn. of chitosan charged microporous filtering film by dip-coating method |
| 07/06/1999 | US5919370 Made from epsilon-caprolactam-soluble polymers; hemodialysis, hemodiafiltration or hamofiltration |
| 07/06/1999 | US5919364 Microfabricated filter and shell constructed with a permeable membrane |
| 07/06/1999 | US5919330 Method for bonding a porous medium to a substrate |
| 07/06/1999 | CA2134477C Analysis based on flow restriction |
| 07/06/1999 | CA2134475C Polynucleotide amplification analysis using a microfabricated device |
| 07/06/1999 | CA2134474C Microfabricated sperm handling devices |
| 07/01/1999 | WO1999033125A1 Separators for electrochemical cells |
| 07/01/1999 | WO1999032212A1 Water filtration method and apparatus |
| 06/30/1999 | EP0925826A1 Use of a neutral or cationic polymer for preventing the activation of blood or plasma contact phase in contact with a semipermeable membrane |
| 06/30/1999 | EP0925106A1 Method for filtering a three-phased reaction mixture |
| 06/30/1999 | EP0363364B1 Preparation of porous aramide membranes |
| 06/30/1999 | CN1221355A Pour-through and pitcher mounted water filter |
| 06/29/1999 | US5917137 Gas separation membranes of blends of polyethersulfones with aromatic polyimides |
| 06/24/1999 | WO1999030806A1 Hydrogen gas-extraction module |
| 06/23/1999 | EP0924262A1 Polymer blends and membranes formed from these blends |
| 06/23/1999 | EP0923984A1 Polyacrylonitrile-base hollow-fiber filtration membrane |
| 06/23/1999 | EP0923983A1 Monolithic ceramic filter |
| 06/23/1999 | CN1220183A Polyether sulphone hollow fibre film and its manufacturing method and use |
| 06/23/1999 | CN1220181A Process for enriched combustion using solid electrolyte ionic conductor systems |
| 06/22/1999 | US5914154 Non-porous gas permeable membrane |
| 06/22/1999 | US5914039 Filtration membrane with calcined α-alumina particles therein |
| 06/22/1999 | CA2024372C Highly air permeable expanded polytetrafluoroethylene membranes and process for making them |
| 06/17/1999 | WO1999029763A1 Method for producing a membrane used to operate fuel cells and electrolyzers |
| 06/17/1999 | WO1999029402A1 Inorganic filtering material modified with organomineral grafting and preparation method |
| 06/16/1999 | EP0922486A1 Microporous membranes and process for the production thereof |
| 06/16/1999 | EP0922478A2 Porous ceramic filter and method for producing same |
| 06/16/1999 | CN1219502A Solid electrolyte ionic conductor oxygen production method with steam purge |
| 06/15/1999 | US5912048 Passivation carbonaceous adsorptive membranes |
| 06/15/1999 | US5911926 Porous material of polytetrafluoroethylene and production process thereof |
| 06/15/1999 | US5911880 Self-wetting membranes from engineering plastics |
| 06/15/1999 | US5911860 Matrix material and non-metallic constituent; enhances mechanical or catalytic properties and/or sintering behavior |
| 06/10/1999 | DE19754305A1 Verfahren zur Herstellung einer Membran zum Betrieb von Brennstoffzellen und Elektrolyseuren A method for producing a membrane for the operation of fuel cells and electrolyzers |
| 06/09/1999 | EP0920489A1 Method for producing cold-filtered beer |
| 06/09/1999 | EP0631597B1 Super porous polysaccharide gels |
| 06/09/1999 | CN1043562C Method for producing polyacrylonitrile film |
| 06/09/1999 | CN1043560C Microfilter plate and process for making it |
| 06/08/1999 | US5910357 Separation membrane and method of producing the same, and shape memory polymer composition |
| 06/08/1999 | US5910277 Mixing powdered polytetrafluoroethylene with liquid lubricant, molding into unsintered sheet, stretching in machine and transverse directions; clean room air filters |
| 06/08/1999 | US5910274 Single step formation of anisotropic fluid separation membranes from casting solution of polymer blends having significant surface energy differences |
| 06/08/1999 | CA2143863C Hollow fiber membrane incorporating a polyimide and process for preparing same |
| 06/02/1999 | EP0919586A1 Process for producing microporous polyolefin film |
| 06/02/1999 | CN1218525A Cellulosic web with contaminant barrier or trap |
| 05/27/1999 | WO1999025788A2 Liquid crystalline single crystal hydrogels with high double refraction |
| 05/27/1999 | WO1999025465A1 Gelatine membrane filters and method for producing the same |
| 05/27/1999 | WO1999025464A1 Microporous membrane and method for providing the same |
| 05/27/1999 | DE19750527A1 Production of stable and storable cellulosic separation membrane |
| 05/26/1999 | EP0917902A1 Filter medium and air filter unit |
| 05/25/1999 | US5906742 Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure |