Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
06/1998
06/18/1998WO1998025687A1 Diffusional gas transfer system and method of using same
06/17/1998CN1185119A Synthetic separation disphragm
06/17/1998CN1184699A Mesopore molecular sieve inorganic composite film used for water purification
06/16/1998US5766473 Enzyme loaded hydrophilic porous structure for protecting oxygen sensitive products and method for preparing same
06/16/1998US5766458 Modulated and regenerative ceramic filter with insitu heating element
06/11/1998WO1998024540A1 Microporous membranes and process for the production thereof
06/10/1998EP0846024A1 Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure
06/10/1998EP0671971B1 Membranes having improved selectivity and recovery, and process for making same
06/10/1998DE19647293C1 Verhinderung und Verzögerung der Belagsbildung in Membranprozessen Prevention and delay of scale formation in membrane processes
06/10/1998CN1038655C A composite filter material
06/09/1998US5763347 In-situ crystallized zeolite containing composition (LAI-ISC)
06/09/1998US5762798 Hollow fiber membranes and method of manufacture
06/09/1998US5762789 Used to filter ultrapure fluids used in semiconductor forming, combines the benefit of an in-line and t filter configuration
06/03/1998CN1183383A 净水器 Water Purifier
06/03/1998CN1038562C Ionic exchange membrane using polypropylene microporous membrane as basal membrane and making method thereof
06/02/1998US5759678 High molecular weight polyethylene; battery separator
06/02/1998US5759404 Selective partition
05/1998
05/28/1998WO1998022392A1 LaMO3 TYPE COMPOSITION, M BEING ALUMINIUM, GALLIUM OR INDIUM, IN POWDER OR SINTERED FORM, METHOD OF PREPARATION AND USE AS CONDUCTOR OF OXYGEN
05/28/1998WO1998022205A1 Inhibition and delay of deposit formation in membrane processes
05/28/1998CA2271490A1 Inhibition and delay of deposit formation in membrane processes
05/27/1998EP0844681A2 Porous membrane with low steam permeability
05/27/1998CN1038481C Hydrophilic compositions with increased thermal and solvent resistance for filtration
05/27/1998CN1038480C Hydrophilic compositions with increased thermal resistance for filtration
05/26/1998US5756643 Exhibits high selectivity for separation of an aromatic/saturate mixture
05/26/1998US5756632 A hydrophilic gel enclosed within a membrane comprising a biocompatible, hydrophilic, segmented block polyurethane copolymer
05/26/1998US5755964 Contacting with ammonia or alkylamine
05/22/1998WO1998021588A1 Membrane and methods of preparing and using same
05/22/1998WO1998021164A1 Functionally gradient ceramic structures
05/22/1998WO1998020960A1 Hydrophilic polymeric phase inversion membrane
05/22/1998CA2272852A1 Functionally gradient ceramic structures
05/22/1998CA2271846A1 Hydrophilic polymeric phase inversion membrane
05/22/1998CA2269933A1 Membrane and methods of preparing and using same
05/20/1998EP0672251A4 Analyte detection by competitive inhibition of ion channel gating.
05/19/1998US5753121 A macroporous support, a monolayer of moelecular seive crystals selected from alpo4-5, vpi-5, mordenite, nu-1o and mixtures, gastight matrix selectively deposited upon support in area between molecular sieve crystals
05/19/1998US5753093 Using a linker lipid for attaching a membrane including a plurality of ionophores to an electrode; providing a space between the membrane and the electrode
05/19/1998US5753014 Membrane filter and a method of manufacturing the same as well as a membrane
05/19/1998US5753008 Solvent resistant hollow fiber vapor permeation membranes and modules
05/14/1998WO1998020181A1 Process for plasma spraying ceramic residues
05/13/1998EP0840760A1 Polymer electrolytes and process for their production
05/13/1998EP0840645A2 Polyacrylonitrile membranes
05/13/1998EP0703819B1 Method of making composite gas separation membranes
05/13/1998EP0666773A4 Cross-flow microfiltration process.
05/13/1998CN1038348C Prodn. of metal from minerals
05/12/1998US5750633 Dope for cast formation and method of manufacturing the same
05/12/1998US5750245 Thermally induced phase separated azlactone membrane
05/12/1998US5749943 Polyimide resins for separation of olefins from hydrocarbons
05/07/1998WO1998008594A3 Method for producing microporous elements, the microporous elements thus produced and uses thereof
05/06/1998EP0839568A1 Fluorochemical recovery and recycle using membranes
05/06/1998EP0765298A4 Synthesis of microporous ceramics by ammonia pyrolysis
05/06/1998EP0715641B1 Strongly alkaline anion exchange membranes and process for producing the same
05/06/1998EP0525204B1 Method for preparing hydrophilic porous fibers an membranes
05/05/1998US5746917 Strongly alkaline anion exchange membranes and process for producing the same
05/05/1998US5746916 Walls with fibers and slits, stacks of polymers
04/1998
04/30/1998WO1998017378A1 Inorganic nanofiltration membrane and its application in the sugar industry
04/30/1998WO1998017377A1 Microporous membranes and uses thereof
04/30/1998WO1998017362A1 Method of gasifying or degasifying a liquid
04/30/1998CA2218147A1 Fluorochemical recovery and recycle using membranes
04/29/1998EP0838434A2 Electrolytic treatment of aqueous salt solutions
04/29/1998EP0838258A1 Proton conductive membrane
04/29/1998EP0838257A2 Coated substrates, method for producing same, and use therefor
04/29/1998EP0838084A1 Multilayer high vertical aspect ratio thin film structures
04/29/1998EP0837900A1 Membranes comprising salts of aminoacids in hydrophilic polymers
04/29/1998EP0591463B1 A method of applying molecular sieve crystals to a support, and a loaded support thus obtained
04/29/1998CN1179991A Novel sulfonated polyimide gas separation membranes
04/28/1998US5744696 Thermal isolation system in a chromatograph
04/28/1998US5744575 Aromatic polyimide and gas separation
04/28/1998US5744366 Mesoscale devices and methods for analysis of motile cells
04/28/1998US5744042 Using a semipermeable membrane
04/28/1998US5744039 Crosslinked polyamine thin film for water desalination
04/28/1998US5744035 Module containing zeolite-based membrane and preparation thereof
04/28/1998US5744015 Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions
04/28/1998US5743775 Laminate for restraining organic vapors, aerosols, and biological agents
04/22/1998EP0731820B1 Aromatic polysulphones
04/22/1998EP0729379B1 Hydrophilic compositions with increased thermal and solvent resistance
04/22/1998EP0682560B1 Polymer porous structure and process
04/22/1998EP0474634B1 Gas-permeable, inorganic membranes
04/22/1998CN1179354A Polysulfone copolymer membranes and preparing process thereof
04/21/1998US5741783 Treating chitosan with formaldehyde and hydrogen cyanide yields mixtures for use in films and membranes, water treatment, complexing agents, stabilizers and cosmetics
04/21/1998US5741409 Biosensors, ion selective electrodes
04/21/1998US5741408 Polymer electrolyte membrane for use in fuel cells and electrolysis cells
04/16/1998WO1998015581A1 Carbohydrate purification using ultrafiltration, reverse osmosis and nanofiltration
04/15/1998EP0835277A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for producing them
04/14/1998US5739316 Contacting with an aqueous alkaline solution of a diepoxide
04/14/1998US5738708 Composite metal membrane
04/08/1998EP0834950A2 Planar solid electrolyte cell stack working as oxygen pump, with offset seals and biasing electrodes
04/08/1998EP0768913B1 Hollow fiber membrane module and method of manufacture
04/08/1998CN1178482A Composite membrane
04/08/1998CN1178480A Filtration monitoring and control system
04/07/1998US5736051 Surface coating of a polymer rendering membrane hydrophilic and less susceptible to adsorption of proteins
04/07/1998US5736046 Used for hemodialysis
04/01/1998EP0832676A1 Process and device for filtering fine particles in fluids
04/01/1998EP0831964A1 Gas passage with selectively acting penetration surface and process for producing the penetration surface
04/01/1998EP0831963A1 Micromachined porous membranes with bulksupport
03/1998
03/31/1998US5734944 Apparatus for rejuvenating developer in printing plate development
03/31/1998US5734092 Hydrogen permeabile membrane
03/31/1998US5733663 Composite membrane and process for its production
03/31/1998US5733657 Method of preparing membranes from blends of polymers
03/31/1998US5733602 Reverse osmosis membranes, coating porosity supports, solutions with acid kalide and crosslinking skins
03/31/1998US5733435 Pressure driven solid electrolyte membrane gas separation method
03/26/1998WO1998011974A1 Porous nickel filter material