| Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858) |
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| 07/01/1999 | WO1999032204A2 Permeable compositions and methods for their preparation |
| 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 | EP0363364B1 Preparation of porous aramide membranes |
| 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 | EP0923955A2 Manufacturing method of artificial organ, hollow fiber membrane, and dialyzer of hollow fiber membrane type |
| 06/22/1999 | US5914154 Non-porous gas permeable membrane |
| 06/22/1999 | US5914039 Filtration membrane with calcined α-alumina particles therein |
| 06/22/1999 | CA2117675C An oil-and water-repellent gas-permeable filter |
| 06/22/1999 | CA2024372C Highly air permeable expanded polytetrafluoroethylene membranes and process for making them |
| 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 |
| 06/15/1999 | 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 |
| 06/09/1999 | EP0631597B1 Super porous polysaccharide gels |
| 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 |
| 06/08/1999 | CA1340585C Medical instrument and method for fabricating same |
| 06/02/1999 | EP0919586A1 Process for producing microporous polyolefin film |
| 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 |
| 05/25/1999 | US5906742 Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure |
| 05/20/1999 | WO1999024513A1 Self-arranging coating |
| 05/20/1999 | WO1999024141A1 Micromachined membrane particle filter using parylene reinforcement |
| 05/20/1999 | DE19750628A1 Preparation of a liquid crystal hydrogel |
| 05/19/1999 | CN1217003A Process for mfg. porous polymer from a mixture |
| 05/18/1999 | US5904848 Porous membrane with glass particles embedded in plastic |
| 05/18/1999 | US5904846 Filter cartridge having track etched membranes and methods of making same |
| 05/14/1999 | WO1999022836A2 Treatment of composite polyamide membranes with hypochlorite to improve performance |
| 05/14/1999 | CA2309149A1 Treatment of composite polyamide membranes to improve performance |
| 05/12/1999 | EP0787369A4 Proton conducting polymers |
| 05/12/1999 | EP0574588B1 Biaxially oriented high-molecular polyethylene film and production thereof, and surface-modified, biaxially oriented high-molecular polyethylene film and production thereof |
| 05/06/1999 | WO1999021914A1 Process for preparing highly permeable microporous polyolefin film |
| 05/06/1999 | WO1999021643A1 Hollow membranes with capillary tubes, modules for treating fluid using same and methods for making same |
| 05/06/1999 | EP0913186A1 Hollow fiber membrane and method of manufacturing same |
| 05/04/1999 | US5900270 Technique for testing and coating a microporous membrane |
| 04/29/1999 | WO1999020378A1 A manufacturing method of composite membrane having hydrophilic coating layer on hydrophobic support membrane |
| 04/28/1999 | EP0911074A1 Ultraporous and microporous membranes and method of making membranes |
| 04/28/1999 | EP0911073A1 Hydrophilic membrane |
| 04/28/1999 | CN1215351A 改进的膜 Improved membrane |
| 04/28/1999 | CN1043129C Nuclear track microporous membrane and making method thereof |
| 04/27/1999 | US5898040 Microporous polymeric foams and microtextured surfaces |
| 04/27/1999 | US5897817 Process for making a medical device from a cellulose acetate hollow fiber semipermeable membrane |
| 04/27/1999 | CA2249253A1 Hydrophilic membrane |
| 04/27/1999 | CA2028177C Filtration media with low protein adsorbability |
| 04/21/1999 | EP0690881B1 Process for the preparation of coated articles and the use thereof |
| 04/21/1999 | CN1214710A Porous film, process for producing the same, and laminate films and recording sheets made with the use porous film |
| 04/20/1999 | US5895575 Whole blood and platelet leukocyte filtration apparatus |
| 04/15/1999 | WO1999018282A1 Improved industrial fabrics |
| 04/15/1999 | WO1999005126A8 Perfluorovinyl ionic compounds and their use in conductive materials |
| 04/15/1999 | CA2305719A1 Improved industrial fabrics |
| 04/14/1999 | EP0908191A1 Hollow fiber membrane oxygenator |
| 04/14/1999 | CN1213985A Composite reverse osmosis membrane and method of reverse osmotic treatment of water using same |
| 04/13/1999 | US5893974 Inorganic porous shell provoding a selective molecular barrier between interior and exterior |
| 04/08/1999 | WO1999016603A1 Porous membrane comprising ceramic and containing plastic as binder |
| 04/08/1999 | WO1999016530A1 Microstructured filter |
| 04/08/1999 | CA2303858A1 Porous membrane comprising ceramic and containing plastic as binder |
| 04/07/1999 | CN1213339A Highly porous polyvinylidene difluoride membranes |
| 04/06/1999 | US5891572 Method of preparing membranes from blends of polymers |
| 04/06/1999 | US5891338 Hydrophobic polymers covalently bonded into block polymer; hemodialysis, hemofiltration, plasmapheresis, immunotherapy steaming resistance |
| 04/01/1999 | WO1999015261A1 Technique for testing and coating a microporous membrane |
| 04/01/1999 | WO1998051403A9 Process for making surface modified porous membrane with perfluorocarbon copolymer |
| 04/01/1999 | CA2270970A1 Technique for testing and coating a microporous membrane |
| 03/30/1999 | US5888434 Process for making a microporous membrane from a blend containing a poly (phenylene sulfide) polymer, an amorphous polymer, and optionally a solvent |
| 03/24/1999 | EP0902893A1 Means for the biological purification of a biological fluid |
| 03/23/1999 | US5886059 Porous filter was produced by blending the polymer with a solvent, adding a non-solvent into solution, exposing to a gas, precipitating the polymer by quenching the dispersion with a non-solvent |
| 03/23/1999 | US5885456 Microporous ulrafiltration membrane comprising blend of polysulfone and polysulfone grafted with free radical initiated addition polymer; water wettable, low protein binding |
| 03/18/1999 | WO1999012634A1 Moulded filter media comprising a sheet of porous nonwoven material |
| 03/18/1999 | CA2302589A1 Moulded filter media comprising a sheet of porous nonwoven material |
| 03/17/1999 | EP0711199B1 Composite membranes and their preparation from polymer particles on a porous substrate |
| 03/17/1999 | EP0604590B1 Gas plasma treated porous medium and method of separation using same |
| 03/17/1999 | CN1042498C Polytetrafluoroethylene porous film and method for making the same |
| 03/16/1999 | US5882518 Microporous film of high molecular weight polyolefin and process for producing same |
| 03/11/1999 | WO1999011362A1 Filter element having a filter active structure coated with a nanoceramic layer |
| 03/11/1999 | WO1999011304A1 Leukocyte-removing filter material |
| 03/04/1999 | WO1999010090A1 Polyion complex separation membrane with a double structure |
| 03/04/1999 | WO1999010089A1 A process for repairing membrane imperfections |
| 03/04/1999 | DE19839576A1 Air filter |
| 03/04/1999 | DE19738376A1 Filterelement Filter element |
| 03/02/1999 | US5876602 Reverse osmosis membranes are treated with an aqueous hypohalite chlorinating agent at a concentration of 200 to 10,000 ppm for a time sufficient to improve flux, lower salt passage and increase the stability to base. |
| 02/17/1999 | CN1207956A Semipermeable encapsulated membranes with improved acid and base stability process for their manufacture and their use |
| 02/16/1999 | US5871680 Method and apparatus for spinning hollow fiber membranes |
| 02/16/1999 | US5871649 Affinity membrane system and method of using same |
| 02/11/1999 | WO1999006138A1 Co2-selective membrane process and system for reforming a fuel to hydrogen for a fuel cell |
| 02/11/1999 | CA2294531A1 Co2-selective membrane process and system for reforming a fuel to hydrogen for a fuel cell |
| 02/09/1999 | US5869174 High degree of water permeability, sufficient strength and rigidity, used in separation and testing applications |
| 02/09/1999 | US5869156 Air filter; perfluoroether fluid in the material has a microstructure containing nodes connected by fibrils; chemical resistance, waterproofing and dielectric |
| 02/09/1999 | US5869073 Antimicrobial liquid compositions and methods for using them |
| 02/09/1999 | US5868992 Treatment of gas separation membranes with inert solvent |
| 02/09/1999 | US5868976 Process of making a dialysis membrane |
| 02/09/1999 | US5868936 Elongated housing with encased hollow fibers having ligands immobilized to internal surface for removing targeted molecules contained in blood plasma |
| 02/04/1999 | WO1999005126A1 Perfluorovinyl ionic compounds and their use in conductive materials |
| 02/04/1999 | WO1999004891A1 Integrally asymmetrical polyolefin membrane for gas transfer |
| 02/04/1999 | DE19750215C1 Gelatin membrane filter increasing number of viable micro-organisms collected from gas |
| 01/27/1999 | EP0893183A2 Exothermic process with porous means to control reacton rate and exothermic heat |
| 01/27/1999 | EP0893165A2 Bioactive coating of surfaces using macroinitiators |