| 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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| 03/09/1999 | US5879554 Consists of a mixture of polyethersulfone and sulfonated polyethersulfone; dissolving the mixture in a solvent, shaping, precipitating the shaped polymer solution in a precipitating bath to form synthetic hemodialysis membrane |
| 03/09/1999 | US5879431 Ethylene/nitrogen separation process |
| 03/04/1999 | WO1999010090A1 Polyion complex separation membrane with a double structure |
| 03/04/1999 | WO1999010087A1 Method for separating actinides and lanthanides by membrane transport using a calixarene |
| 03/04/1999 | DE19839576A1 Air filter |
| 03/04/1999 | DE19738376A1 Filterelement Filter element |
| 03/03/1999 | EP0898705A1 Electrochemical biosensors |
| 03/02/1999 | US5876604 Amorphous copolymer of perfluoro-2,2-dimethyl-1,3-dioxole |
| 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. |
| 02/25/1999 | DE19736854A1 Membrane resistant to bio-fouling, useful in oxygen sensor or filter for nutrient test sample |
| 02/24/1999 | EP0897373A1 Mesoporous material |
| 02/24/1999 | EP0858827A4 Membrane element |
| 02/24/1999 | CN1209086A Method for forming dendritic metal particles |
| 02/18/1999 | WO1999007459A1 Cleaning method for membranes |
| 02/18/1999 | CA2301319A1 Cleaning method for membranes |
| 02/17/1999 | CN1208363A Molecular sieves and processes for their manufacture |
| 02/17/1999 | CN1208362A Method of filtering the organic solutions arising in the production of circuit boards |
| 02/17/1999 | CN1207956A Semipermeable encapsulated membranes with improved acid and base stability process for their manufacture and their use |
| 02/16/1999 | US5871650 Supported zeolite membranes with controlled crystal width and preferred orientation grown on a growth enhancing layer |
| 02/16/1999 | US5871646 Hydrolysis of a solution of tetraethyl silicate and aluminum nitrate |
| 02/11/1999 | WO1999006138A1 Co2-selective membrane process and system for reforming a fuel to hydrogen for a fuel cell |
| 02/11/1999 | DE19734259A1 Production of highly pure hydrogen |
| 02/11/1999 | CA2294531A1 Co2-selective membrane process and system for reforming a fuel to hydrogen for a fuel cell |
| 02/10/1999 | CN1207398A Inorganic particle filled polymer separation membrane and preparing method thereof |
| 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 | US5868976 Process of making a dialysis membrane |
| 02/09/1999 | US5868975 Preparing polyimide type membrane having reduced number of pin holes on the surface |
| 02/09/1999 | US5868918 Method for separating oxygen from an oxygen-containing gas |
| 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 | WO1999004889A1 Filtering device |
| 02/04/1999 | DE19750215C1 Gelatin membrane filter increasing number of viable micro-organisms collected from gas |
| 02/03/1999 | CN1207085A Molecular sieves and processes for their manufacture |
| 01/28/1999 | WO1999003559A1 Sintered metal fiber for use in the preparation of beverages |
| 01/28/1999 | DE19731551A1 Filtervorrichtung Filter device |
| 01/27/1999 | EP0893183A2 Exothermic process with porous means to control reacton rate and exothermic heat |
| 01/27/1999 | EP0892664A1 Selective membrane/sorption techniques for salvaging blood |
| 01/26/1999 | US5863654 Polypropylene having a coating of carbon made from the dehydrochlorination of a graft polymer of the polypropylene and vinylidene chloride |
| 01/26/1999 | US5863645 High strength, microporous layer |
| 01/26/1999 | US5863610 Contacting substrate with polymer in solvent to form coating, heating to remove solvent |
| 01/26/1999 | US5863462 SiCN gels as precursors of non-oxidic silicon ceramics |
| 01/21/1999 | WO1999002248A1 Highly asymmetric polyethersulfone filtration membranes |
| 01/21/1999 | WO1999002247A1 Integral non woven reinforcement porous membbranes |
| 01/21/1999 | WO1999002246A1 Highly asymmetric ultrafiltration membranes |
| 01/21/1999 | CA2293802A1 Highly asymmetric ultrafiltration membranes |
| 01/20/1999 | EP0892448A2 Shutdown, trilayer battery separator and process of manufacture |
| 01/20/1999 | EP0891807A2 Biphasic material |
| 01/20/1999 | EP0891712A1 Liquid dispenser for sterile solutions |
| 01/19/1999 | US5861471 Polysulphone/polyether block copolycondensates |
| 01/14/1999 | WO1999001208A1 Composite reverse osmosis membrane and process for preparing the same |
| 01/14/1999 | WO1999001207A1 FILTRATION MEMBRANE WITH CALCINED α-ALUMINA PARTICLES THEREIN |
| 01/13/1999 | EP0889930A1 Granular-type polytetrafluoroethylene dispersions and fused articles prepared therefrom |
| 01/13/1999 | EP0889929A1 Granular-type modified polytetrafluoroethylene dispersions and fused articles prepared therefrom |
| 01/13/1999 | EP0889928A1 Granular-type polytetrafluoroethylene dispersions and fused articles prepared therefrom |
| 01/13/1999 | EP0889925A1 Process for manufacture of a porous polymer by use of a porogen |
| 01/13/1999 | EP0889924A1 Process for manufacture of a porous polymer from a mixture |
| 01/13/1999 | EP0889923A1 High water content porous polymer |
| 01/12/1999 | US5859182 Fluorine-containing polyquinazolone polymer and separation membrane using the same |
| 01/12/1999 | US5859175 From aromatic acyl chloride and aromatic diamine; semipermeable membrane |
| 01/12/1999 | US5858523 High porosity, good pressure resistance and regulated pore size |
| 01/12/1999 | US5858457 Process to form mesostructured films |
| 01/12/1999 | US5858238 Salvage of autologous blood via selective membrane/sorption technologies |
| 01/12/1999 | US5858065 Effluent gases, e.g. from the semiconductor manufacturing process, efficiently separated using membranes from the ?carrier gases? much faster; based on the mobility selectivity and solubility of each gas |
| 01/12/1999 | CA2086128C Narrow pore-size distribution polytetramethylene adipamide or nylon 46 membranes and process for making them |
| 01/07/1999 | EP0888480A1 Cellulosic web with a contaminant barrier or trap |
| 01/07/1999 | EP0888211A1 Highly porous polyvinylidene difluoride membranes |
| 01/07/1999 | EP0888173A1 Procedure for preparing molecular sieve films |
| 01/07/1999 | EP0888172A1 Endotoxin-specific membranes |
| 01/07/1999 | EP0888171A1 Asymmetric supported membrane for direct osmotic concentration |
| 01/06/1999 | CN1203831A Mixed conductive compact oxygen permeable membrane material |
| 01/05/1999 | US5855783 Pleated poly(tetra-fluoro ethylene) filter cartridge |
| 01/05/1999 | US5855201 Gas exchange apparatus |
| 12/30/1998 | WO1998058728A1 Polyacrylonitrile-base hollow-fiber filtration membrane |
| 12/30/1998 | EP0887101A1 Microporous ceramic membrane having a separating layer composed of modified synthetic smectite clay |
| 12/30/1998 | EP0722541B1 Micromachined flow switches |
| 12/30/1998 | CN1203610A Microporous polytetrafluoroethylene (PTFE) bodies with filler |
| 12/30/1998 | CN1203119A Method for making poly-meta-fluoethylene hollow fibre porous membrane and products thereof |
| 12/29/1998 | US5853647 Process for the stabilization of the properties of cellulosic membranes |
| 12/29/1998 | US5853633 Method of producing microporous thermoplastic resin membrane |
| 12/29/1998 | US5852925 Method for producing oxygen and generating power using a solid electrolyte membrane integrated with a gas turbine |
| 12/23/1998 | WO1998058418A1 Membrane for selective transport of oxygen over water vapor and metal-air electrochemical cell including said membrane |
| 12/23/1998 | WO1998057733A1 Membrane module with unilaterally embedded hollow fiber membranes |
| 12/23/1998 | EP0884960A1 Membranes of polyurethane based materials including polyester polyols |
| 12/23/1998 | EP0722540B1 Micromachined fluid flow regulators |
| 12/23/1998 | EP0639106B1 Method for the preparation of a polyvinylidene fluoride microporous membrane |
| 12/23/1998 | EP0637999B1 Polynucleotide amplification analysis using a microfabricated device |
| 12/23/1998 | CN1202839A Water removal device |
| 12/23/1998 | CA2294258A1 Membrane for selective transport of oxygen over water vapor and metal-air electrochemical cell including said membrane |
| 12/16/1998 | EP0884096A1 Semipermeable encapsulated membranes with improved acid and base stability process for their manufacture and their use |
| 12/16/1998 | CN1201711A Wet oxidation-desulfurizing process by using expanded polytetrafluroethylene film filter |
| 12/16/1998 | CN1041173C Hollow fibre film with characteristic of transmitting of reinforcement and preparation of same |
| 12/15/1998 | US5849980 Low alkaline inverted in-situ crystallized zeolite membrane |
| 12/15/1998 | US5849311 Contact-killing non-leaching antimicrobial materials |
| 12/15/1998 | US5849215 Highly ordered nanocomposites via a monomer self-assembly in situ condensation approach |
| 12/15/1998 | US5849195 Composite membrane, process of manufacturing it and process of using it |
| 12/15/1998 | US5849189 Hollow fiber blood purifying membrane and process for its production |
| 12/09/1998 | EP0882486A1 Process for enriched combustion using solid electrolyte ionic conductor systems |
| 12/09/1998 | EP0882088A1 $g(a),$g(b),$g(b)-TRIFLUOROSTYRENE-BASED AND SUBSTITUTED $g(a),$g(b),$g(b)-TRIFLUOROSTYRENE-BASED COMPOSITE MEMBRANES |