Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
03/1997
03/27/1997DE19534980A1 Simply producing flawless thin silica glass films of any dimensions
03/26/1997EP0764461A1 Porous polysulfone membrane and process for producing the same
03/26/1997EP0764346A1 High vertical aspect ratio thin film structures
03/26/1997EP0465649B1 Composite semipermeable membrane and production thereof
03/26/1997CN1145822A Method for producing oxygen and generating power using solid electrollyte membrank integrated with gas turbine
03/26/1997CN1034315C Porous membrane preparation with polytetrafluorethylene
03/25/1997US5614578 Injection-molded dosage form
03/25/1997US5614001 Hydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separator
03/20/1997WO1997010048A1 Filtration medium
03/20/1997WO1997010047A1 Method and device for removing iron from aqueous liquids
03/20/1997WO1997010045A1 Tubular membrane, method for manufacturing same, and membrane separation process
03/20/1997DE19534764A1 Sol-gel mfr of thin, crack-free silica films
03/19/1997EP0762929A1 Hydrophilic porous membranes made of cross-linked cellulose hydrate, method of producing them and their use
03/19/1997EP0762928A1 Azlactone-functional membranes and methods of preparing and using same
03/19/1997CN1145593A High-flux polyacrylonitrile dialysis diaphragm
03/18/1997US5611930 Cellulose ester blend membranes, process for making same and their use
03/18/1997US5611843 Carbon dioxide separation
03/13/1997WO1997009167A1 Microporous membrane with a stratified pore structure created in situ and process
03/13/1997CA2231270A1 Microporous membrane with a stratified pore structure created in situ and process
03/12/1997EP0761293A1 Polyetherimide membrane
03/12/1997EP0761291A1 Polymeric dope solution for use in the preparation of an integrally skinned asymmetric membrane
03/12/1997CN1144712A Method for purification of chiorine gas
03/11/1997US5609762 Cellulose membranes comprising cotton fibers and method of manufacturing them
03/05/1997EP0760252A1 A membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
03/05/1997EP0760251A1 A membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
03/05/1997EP0760250A1 A membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
03/05/1997EP0711202A4 Reactive membrane for filtration and purification of gases of impurities and method utilizing the same
03/04/1997US5608014 Blends of polyethersulfones with aromatic polymides, polyamides or polyamide-imides useful for making gas separation membranes
02/1997
02/26/1997CN1143917A Mesoscale sample preparation device and system for determination and processing of analytes
02/26/1997CA2183851A1 Membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
02/26/1997CA2183850A1 Membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
02/26/1997CA2183810A1 Membrane and method for the separation of aromatic hydrocarbons from a mixture of various aromatic hydrocarbons or from a mixture of such aromatic hydrocarbons and non-aromatic hydrocarbons
02/25/1997US5606000 Silicon containing polyarylates
02/25/1997US5605631 Membranes
02/25/1997US5605628 Inorganic support having interstices; porous film of sintered particles
02/25/1997US5605627 Artificial kidney
02/25/1997US5605553 Ceramic hot-gas filter
02/20/1997WO1997006206A1 Strong, air permeable membranes of polytetrafluoroethylene
02/19/1997EP0758730A2 Apparatus for removing moisture from an environment
02/19/1997EP0758349A1 Surface-modifying endgroups for biomedical polymers
02/19/1997EP0749352A4 Microfabricated particle filter
02/18/1997US5603974 Barrier material comprising a thermoplastic and a compatible cyclodextrin derivative
02/13/1997WO1997005191A1 Polymer electrolytes and process for their production
02/13/1997WO1997005190A1 Block copolymers
02/13/1997DE3645263C2 Membranes for sepn. of liquids by evaporation
02/12/1997EP0757589A1 Separating and concentrating certain ions using ion-binding ligands bonded to membranes
02/12/1997EP0605470B1 Hydrophilic membranes prepared from polyethersulfone/poly-2-oxazoline/polyvinylpyrrolidone blend
02/12/1997CN1142410A Improved polymeric Membrane
02/11/1997US5602185 Ion exchange membranes
02/06/1997WO1997003747A2 Polyacrylonitrile membranes
02/05/1997EP0757024A1 Silicon nitride porous body and method of preparing the same
02/05/1997CN1033951C Oxygen-permeable polymeric membranes
02/05/1997CN1033950C Oxygen-permeable polymeric membranes
02/04/1997US5599614 Integral composite membrane
02/04/1997US5599588 Hydrolyzing a homogeneous solution of an alkaline earth or rare earth haloalkoxide in an anhydrous solvent; low temperature
02/04/1997US5599380 Polymeric membrane
02/04/1997CA2104820C Process for recovering oxygen from gaseous mixtures containing water or carbon dioxide which process employs ion transport membranes
01/1997
01/30/1997WO1997003118A1 Membranes comprising salts of aminoacids in hydrophilic polymers
01/30/1997WO1997003021A1 Zeolites and processes for their manufacture
01/30/1997CA2224893A1 Membranes comprising salts of aminoacids in hydrophilic polymers
01/30/1997CA2199537A1 Zeolites and processes for their manufacture
01/29/1997CN1141233A Polyvinyl alcohol-based hollow fiber memberane and process for producing same
01/29/1997CN1141209A Membranes formed from copolymides
01/29/1997CN1141207A Staged electrolyte membrane
01/28/1997US5596988 Multi-parameter sensor apparatus
01/28/1997CA2086401C Method for manufacturing ultrathin inorganic membranes
01/23/1997WO1997002308A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for producing them
01/23/1997DE19526094A1 Membranen aus Polyacrylnitril Membranes from polyacrylonitrile
01/23/1997CA2225817A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for preparing them
01/22/1997EP0754719A2 Microporous film of high molecular weight polyolefin and process for producing same
01/22/1997EP0754488A1 Method of producing microporous thermoplastic resin membrane
01/22/1997EP0754487A1 Process and system for separation and recovery of perfluorocompound gases
01/21/1997US5595658 Membrane based on graft copolymers
01/21/1997CA1338853C Composite membranes
01/19/1997CA2181423A1 Microporous film of high molecular weight polyolefin and process for producing same
01/15/1997EP0753337A2 Hollow fiber vapor permeation membranes and modules
01/15/1997EP0753336A2 Solvent resistant microporous polyimide membranes
01/15/1997EP0752909A1 Permeation and biological treatment of waste gas
01/15/1997EP0631520B1 Alcohol-insoluble nylon microporous membranes
01/14/1997US5593738 Process for the preparation of composite semi-permeable membrane
01/14/1997US5593588 Desalination, improved chlorine resistance
01/14/1997US5593581 Inorganic filtration unit
01/08/1997EP0751818A1 High-flux polyacrylonitrile dialysis diaphragm
01/08/1997EP0751817A1 Inorganic porous support for a filtration membrane and manufacturing process
01/08/1997CN1139679A Preparation method for high-viscosity chloromethyl polysulphone
01/07/1997US5591647 Analyte detection by competitive inhibition of ion channel gating
01/07/1997US5591345 Membrane for separating off small molecules and method for the production thereof
01/07/1997US5591315 Solid-component membranes electrochemical reactor components electrochemical reactors use of membranes reactor components and reactor for oxidation reactions
01/07/1997US5591250 Material and process for separating carbon dioxide from methane
01/03/1997WO1997000121A1 Tangential flow planar microfabricated fluid filter
01/02/1997EP0750939A2 Novel sulfonated polyimide gas separation membranes
01/02/1997EP0750938A1 Polysulfone hollow fiber semipermeable membrane
01/02/1997EP0750936A1 Permselective membranes and methods for their production
01/02/1997DE19523861A1 Novel tri:phenyl phosphonium polyarylene sulphide ionomers
01/01/1997CN1139021A Fluid separation membranes prepared from blends of polymide polymers
01/01/1997CN1033690C Thin-film composite membrane
12/1996
12/31/1996US5589563 Surface-modifying endgroups for biomedical polymers
12/31/1996CA2028692C Ceramic filter and process for making it
12/27/1996WO1996041677A1 Gas passage with selectively acting penetration surface and process for producing the penetration surface
12/27/1996WO1996041672A1 Ceramic hot-gas filter and process for manufacturing it