Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
08/1992
08/18/1992US5139881 Modified polymeric surfaces and process for preparing same
08/18/1992US5139712 Controlled pore size, only water present is from air humidity
08/18/1992US5139677 Peryaporation across polyurea or polyamide membrane
08/18/1992US5139541 Hydrogen-permeable composite metal membrane
08/18/1992US5139540 Membrane separation of gases
08/18/1992US5139529 Porous polypropylene membrane and methods for production thereof
08/16/1992CA2060588A1 Membranes
08/12/1992EP0498596A1 Process for the manufacture of thin film composite membranes
08/12/1992EP0498414A2 Porous hollow fiber membrane of polypropylene and production thereof
08/12/1992EP0498348A1 A composite membrane that includes a separation membrane
08/12/1992CN1063502A Process for treating mixture containing dewaxing oil dewaxing
08/12/1992CN1063425A Method of producing efficient separating membrane
08/11/1992US5138023 Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
08/11/1992US5137635 Polyamideether copolymer
08/11/1992US5137634 Microporous inorgnaic film superimposed on surface of porous anodic aluminum oxide membrane; uniform pore size; crack-and pinhole-free
08/11/1992US5137606 Forming chloroformyloxy-substituted isophthaloyl chloride; reacting hydroxy-substituted isophthalic acid, catlayst, phosgene, solvent
08/07/1992CA2101946A1 Catalyst or membrane precursor systems, catalyst or membrane systems, and method of preparing such systems
08/05/1992EP0497334A1 Fixed plate casting system
08/05/1992EP0497185A1 Process for preparing protein non-adsorptive microporous polysulfone membranes
08/05/1992EP0497096A2 Morphological composite materials formed from different precursors
08/05/1992CN1063235A Preparation of hypertonic polysulfone hollow fibred ultrafiltering film
08/04/1992US5135653 Optical resolution with β-1,4-xylan dibenzoate
07/1992
07/31/1992WO1992013628A2 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
07/31/1992CA2078448A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
07/31/1992CA2060258A1 Fixed plate casting system
07/30/1992DE4102430A1 Porous ceramic or metallic bodies of high, controlled pore content - mfd. by sedimentation of a solid-liquid dispersion, followed by calcination
07/29/1992EP0496496A1 Membrane dehydration process
07/29/1992EP0496328A1 Membrane for a filtration, gas or liquid separation or pervaporation apparatus and method for manufacturing same
07/29/1992EP0495845A1 Porous inorganic membranes.
07/29/1992CN1063117A Dloxole /tfe copolymer composites
07/29/1992CN1017594B Anion exchanger
07/29/1992CA2057092A1 Process for preparing protein non-adsorptive microporous polysulfone membranes
07/28/1992US5134107 Single phase metal-alumina made by sol-gel processing
07/23/1992WO1992011925A1 Impregnating porous inorganic membrane with reactive inorganic binder
07/23/1992WO1992011924A1 A smoke filter
07/23/1992WO1992011921A1 Back flushable filtration device and method of forming and using same
07/23/1992CA2059779A1 Membrane for a filtration, gas or liquid separation and pervaporation equipment, and making process of such a membrane
07/22/1992EP0495735A1 Process for manufacturing highly permeable porous tubes from carbon-carbon composite material and their uses
07/22/1992EP0495550A2 Temperature resistant mircroporous film
07/22/1992EP0495381A2 Heteroaromatic polyethers
07/22/1992CN1017541B Fuel delivery system
07/21/1992US5132415 From cellulose in aprotic solvents with lithium chloride and-or calcium chloride
07/21/1992US5132080 Production of articles from powdered metals
07/21/1992US5132059 Coagulating polyvinyl formal
07/21/1992US5131927 Reactive treatment of composite gas separation membranes
07/19/1992CA2051497A1 Membrane process
07/15/1992EP0494187A1 Porous membranes suitable for separation devices and other uses.
07/14/1992US5130231 Blood plasma test device including a semipermeable membrane made of an expanded hydrophobic material that has been treated with a surfactant
07/14/1992US5130166 Method for reducing the pore size of sintered metal filters by application of an alcoholic solution of a metal alkoxide which is converted to an insoluble hydrous metal oxide
07/14/1992US5130065 Dry-wet spinning, washing, aftertreatment, drying, alcohol solvent
07/14/1992US5130025 Membranes for reverse osmosis, ultrafiltration, dialysis and electrodialysis
07/14/1992US5130024 Polytetrafluoroethylene polymer with coating of fluorine copolymer for water permeability
07/14/1992US5130017 Multi-block polymer comprising a first amide acid prepolymer, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
07/14/1992US5129920 Bundles of poly(2,6-dimethyl-p-phenylene) oxide fibers
07/14/1992CA1304897C Porous membrane
07/09/1992WO1992011081A1 Diaphragm for the separation of gas mixtures, process for its production and its use
07/07/1992US5128439 Saturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
07/07/1992US5128041 Microporous membrane, method of manufacture, and method of use
07/07/1992CA1304696C Ammonia separation using ion exchange polymeric membranes and sorbents
07/01/1992EP0492446A2 Microporous membranes from poly(ether-etherketone)-type polymers and low melting point crystallizable polymers, and a process for making the same
06/1992
06/30/1992US5126503 Membrane process for dewatering lube oil dewaxing solvents
06/30/1992US5126428 Polycarbonate from dihydroxy diphenyl cycloalkane
06/25/1992WO1992010528A1 Sulphonated polyorganosiloxane-based membranes, their preparation and use thereof as solid ion conductors
06/25/1992WO1992010280A1 Thin film composite ultrafiltration membrane
06/25/1992DE4040363A1 Polymere fuer die herstellung von folien, membranen, formkoerpern und funktionalisierten oberflaechen auf basis von polysacchariden Polymers for the production of films membranes, formkoerpern and functionalized surfaces based on polysaccharidic
06/24/1992EP0331702B1 Apparatus for drying a wet gas
06/23/1992US5123937 Using gas permeable breathable membrane
06/17/1992EP0490863A1 Surface-modified support membrane and process therefor
06/17/1992CN1017069B Hollow fiber film used in artificial lung, its manufacture and artificial lung using this kind of film
06/16/1992US5122273 Hydrophilic membrane, process for producing a hydrophilic membrane
06/16/1992US5121801 Soluble for crosslinked graft copolymers of lignin based on hydroxyethylmethacrylate and acrylamide
06/14/1992CA2057553A1 Surface-modified support membrane and process therefor
06/11/1992WO1992009359A1 Large-pore-diameter porous hollow yarn membrane of polyethylene, production thereof, and hydrophilic porous hollow yarn membrane of polyethylene
06/10/1992EP0489693A1 Charged asymmetric mosaic membranes
06/10/1992EP0489483A1 Process for coating a substrate with tin oxide and uses for coated substrates
06/10/1992EP0489431A2 Semipermeable membranes based on certain sulfonated substituted polysulfone polymers
06/10/1992EP0489418A1 Novel multicomponent fluid separation membranes
06/10/1992EP0489417A2 A cross-linked semi-permeable gas separation membrane substantially derived from a reaction product of a thermoformable, thermosettable aromatic polycarbonate, polyestercarbonate, and/or polyester polymer and an epoxy resin
06/09/1992US5120576 Impregnating porous inorganic membrane with reactive inorganic binder
06/09/1992US5120440 Surfactant, hydrophobic polymer insoluble in water and alcohol, wate rsoluble polymer
06/09/1992CA1302677C Hydrophilic article and method of producing same
06/07/1992WO1992010276A1 Multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
06/07/1992WO1992010274A1 Membrane made from multiblock polymer
06/07/1992CA2096439A1 Membrane made from multiblock polymer
06/07/1992CA2096437A1 Multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
06/07/1992CA2057122A1 Cross-linked semi-permeable gas separation membrane substantially derived from a reaction product of a thermoformable, thermosettable aromatic polycarbonate, polyestercarbonate, and/or polyester polymer and an epoxy resin
06/07/1992CA2031674A1 Compositions useful for preparing cellulose ester membranes for liquid separations
06/06/1992CA2056930A1 Semipermeable membranes based on certain sulfonated substituted polysulfone polymers
06/05/1992CA2056921A1 Multicomponent fluid separation membranes
06/04/1992WO1992009353A1 Dioxole/tfe copolymer composites
06/03/1992EP0488341A2 Polyimide gas separation membranes and process of using same
06/03/1992EP0488063A1 Cellulose dialysis hollow fibres
06/03/1992EP0488018A2 Capillary membrane for gas separation
06/03/1992EP0487998A2 Production of membrane capillaries for gas separation
06/03/1992EP0487779A1 Compositions useful for preparing cellulose ester membranes for liquid separations
06/02/1992US5118424 Thin film composite membranes from vinyl and related nomomers
06/02/1992CA1302638C Fluorine-containing cyclic polymer
06/02/1992CA1302303C Gas separations using membranes comprising perfluorinated polymers with pendant ionomeric moieties
06/02/1992CA1302177C Polyvinylidene difluoride structure and method of making
05/1992
05/27/1992EP0486521A1 Blotting methods using polyaldehyde activated membranes