Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
12/1999
12/09/1999WO1999062986A1 Method for producing cellulosic shaped bodies
12/09/1999WO1999062624A1 Hydrophobic permeable composite, method for producing said composite and use of the same
12/09/1999WO1999062623A1 High performance composite membrane
12/09/1999WO1999062620A1 Ion-conducting composite which is permeable to matter, method for producing said composite, and use of the same
12/09/1999DE19824666A1 Separation of mixtures of substances using permeable material
12/09/1999CA2299472A1 Hydrophobic permeable composite, method for producing said composite and use of the same
12/09/1999CA2299461A1 Ion-conducting composite which is permeable to matter, method for producing said composite, and use of the same
12/08/1999EP0962427A1 Apparatus for treating organic raw water utilizing anaerobic microorganisms
12/08/1999EP0889930B1 Granular-type polytetrafluoroethylene dispersions and fused articles prepared therefrom
12/08/1999CN1237475A Prepartion of composite gas separation membrane its application
12/07/1999US5998024 Polyvinylidene chloride
12/07/1999US5997741 Process for preparing a polyether ether ketone membrane
12/07/1999US5997652 Food starch processing method and apparatus
12/02/1999WO1999061141A1 Crosslinked ion conductive membranes
12/02/1999WO1999061140A1 Process of producing a microporous hydrophobic inorganic membrane
12/02/1999WO1999061130A1 Phase-separation member
12/02/1999WO1999048932A3 Modified polymer and modified polymer membrane
12/02/1999CA2331720A1 Crosslinked ion conductive membranes
12/01/1999EP0960644A1 Filter medium and air filter unit using the same
12/01/1999EP0959981A1 Method for separating mixtures of substances using a material pervious to said substances
12/01/1999CN1046864C Solid multi-component membranes for electrochemical reactor
11/1999
11/30/1999US5994254 Containing rare earth oxides; electroconductivity
11/30/1999CA2171667C Compositions capable of operating under high oxygen partial pressures for use in solid-state oxygen producing devices
11/30/1999CA2136006C Hollow fiber membrane incorporating a surfactant and process for preparing same
11/25/1999WO1999060054A1 Microporous materials containing cross-linked oil
11/25/1999WO1999059711A1 Preparation of an organic compound by a condensation reaction
11/25/1999WO1999059707A1 Highly porous polyvinylidene difluoride membranes
11/25/1999WO1999059702A1 A membrane and use thereof
11/25/1999CA2292916A1 Highly porous polyvinylidene difluoride membranes
11/24/1999EP0958300A1 Electrokinetic sample preparation
11/24/1999EP0958249A1 A process and apparatus for treating waste water
11/24/1999EP0958035A2 Method for producing microporous elements, the microporous elements thus produced and uses thereof
11/24/1999EP0958029A1 Method of manufacturing thin metal membranes
11/23/1999US5989742 Ion exchange membrane comprises a blend of homogenously sulfonated polyphenylene oxide of given formula and polyvinylidene fluoride; high current density using a very low loading electrode
11/23/1999US5989651 Phase separation apparatus
11/23/1999US5989501 Plant for the production of hydrogen and of energy
11/23/1999US5989433 Method of treating a photographic processing solution
11/23/1999US5989420 Ceramic filter formed within ultrasonically vibrated extrusion molding die to have an average particle size gradient continually increasing from first surface toward second surface
11/23/1999US5989319 Gas separator
11/23/1999US5988400 Pourous fluorocarbon membrane, method for producing thereof and cartridge filter based on said membrane
11/18/1999WO1999058232A1 Composite membrane made of a microporous support membrane and interlayer made of regenerated cellulose and method for the production of the same
11/18/1999DE19914200A1 Porous membrane e.g., for use as a filter with high virus retention for production of drinking water
11/18/1999DE19821309A1 Composite membrane for e.g. ultrafiltration or nanofiltration
11/17/1999EP0956150A1 Inorganic nanofiltration membrane and its application in the sugar industry
11/17/1999EP0956149A1 Improved membrane
11/17/1999EP0815162B1 Porous ptfe film and a manufacturing method therefor
11/17/1999CN1235061A Charge mosaic membrane, its production process, method of its use, and apparatus provided with the same
11/16/1999US5985942 Composite membranes, flexibility and vinyl copolymers
11/16/1999US5985772 Nonwoven cellulosic fiber webs including, paperboards and corrugated paper board, etc., containing barrier layer that can act both as barrier to the passage of permeant and as trap for contaminant materials by using cyclodextrin compound
11/16/1999US5985476 Stable high conductivity functionally gradient compositionally layered solid state electrolytes and membranes
11/16/1999US5985475 Polyperfluoropropylene oxide(-co-perfluoroformaldehyde); self-supporting
11/16/1999US5985328 Micromachined porous membranes with bulk support
11/16/1999US5985164 Method for forming a filter
11/11/1999WO1999040031A3 Water purification apparatus
11/11/1999DE19832658C1 Filter for sterile applications
11/11/1999DE19820580A1 Regenerable gas filter made of composite material based on permeable carrier
11/10/1999CN1234748A Polycrylonitrlle-based hollow-fiber filtration membrane
11/10/1999CN1234291A Potassium fluonikelate type inorganic compact oxygen-permeable film material
11/09/1999US5981614 Hydrophobic-oleophobic fluoropolymer compositions
11/09/1999US5980989 Gas separator and method for preparing it
11/09/1999US5980987 Method of making a composition for separating and concentrating certain ions from mixed ion solutions
11/09/1999US5980986 Phase separation apparatus
11/09/1999US5980840 Exothermic and endothermic chemical conversions with heat exchanging; combustion of hydrocarbons
11/09/1999US5980746 Membrane and methods of preparing and using same
11/09/1999US5979670 Large pore synthetic polymer membranes
11/04/1999WO1999055449A1 Membrane which comprises a blend of a polysulphone or a polyether sulphone and polyethylene oxide/polypropylene oxide substituted ethylene diamine
11/04/1999WO1999055168A1 A process for the preparation of colostrum
11/04/1999DE19819676A1 Ceramic filter element used as filter or filter membrane support
11/03/1999EP0749352B1 Microfabricated particle filter
11/03/1999EP0715880B1 Method for producing a gas separator
11/02/1999US5977229 Hydrophilically modified polyethylene resins
11/02/1999US5976621 Phase separation apparatus
11/02/1999US5976434 Method for preparing hydrophilic polypropylene membrane
11/02/1999US5976433 Dry-jet wet spinning or wet spinning, using a spinneret having heat insulating structure.
11/02/1999US5976380 Article of manufacture including a surface modified membrane and process
11/02/1999US5976221 Apparatus for separating a gas mixture into components by permeation through a membrane.
11/02/1999US5976220 That uses a membrane to exchange gas constituents through a diffusion process while substantially blocking particle transfer.
10/1999
10/28/1999WO1999054407A2 Engineering ionomeric blends and engineering ionomeric blend membranes
10/28/1999WO1999054389A1 Acid-base polymer blends and their use in membrane processes
10/28/1999WO1999022836A3 Treatment of composite polyamide membranes with hypochlorite to improve performance
10/28/1999CA2324963A1 Engineering ionomeric blends and engineering ionomeric blend membranes
10/27/1999EP0951502A1 Porous moulded bodies of thermoplastic polymers
10/27/1999EP0951500A1 Microporous polytetrafluoroethylene (ptfe) bodies with filler
10/27/1999EP0951498A1 Melt-spun polysulfone semipermeable membranes and methods for making the same
10/27/1999EP0951355A1 Catalytically active permeable composite material, method for producing said composite material, and use of the same
10/27/1999EP0840760B1 Polymer electrolytes and process for their production
10/26/1999US5972449 Porous products manufactured from polytetrafluoroethylene treated with a perfluoroether fluid and methods of manufacturing such products
10/26/1999US5972080 Strength, durability, solvent resistance, heat resistance; gas separation
10/26/1999US5972079 Mechanical strength; for small molecule separation or combined sepearation and chemical reaction including catalytic reactions
10/21/1999WO1999053015A1 Membrane filtration
10/21/1999DE19917312A1 Unit for determining position eg. liquid level has magnetostrictive wire led through measurement zone and at least one magnet movable through zone to trigger disturbances in wire
10/21/1999DE19817376A1 Ion exchange membranes and polymer blends, useful for fuel cells, gas separation, pervaporation and reverse osmosis
10/21/1999DE19817374A1 Acid base polymer blends and membranes useful as polymer electrolyte membranes in fuel cells, pervaporation and reverse osmosis
10/20/1999EP0949960A1 Method for producing hollow fibrous membranes for microfiltration, ultrafiltration or gas separation
10/20/1999EP0949959A2 Polymeric membranes and polymer articles having hydrophilic surface and method for their preparation
10/20/1999EP0871586B1 Molecular sieves and process for their manufacture
10/20/1999CN1232407A Filter medium and air filter unit using same
10/20/1999CN1231941A Preparation of asymmetrical hollow polyimide fibre membrane
10/19/1999US5969087 Condensation polymerization of tetracarboxylic acid anhydride and aromatic amine yields selective membrane having heat and chemical resistance, permeation performance, mechanical strength
10/19/1999US5969082 Application of sulfone, ketone and ester containing polyalkyl ether units to medical materials
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