Patents
Patents for B01D 69 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor (16,729)
07/1995
07/25/1995US5435918 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase
07/20/1995WO1995019219A1 Composite microporous polyolefin film and process for producing the same
07/20/1995DE4413574C1 Membrane for micro-filtration of fluid suspensions or gases
07/19/1995EP0663235A1 Phase separated membrane
07/18/1995US5433859 Supported microporous filtration membrane and method of using same
07/12/1995EP0662340A1 Cartridge sorption device
07/11/1995US5431864 Method of making composite porous carbonaceous membranes
07/11/1995US5431817 Bleach resistant polysulfone/polyurethane composite membranes
07/11/1995CA2137970A1 Cartridge sorption device
07/06/1995WO1995017946A1 Multilayer filter material
07/05/1995CN1029201C Process for producing multilayer polytetrafluoroethylene porous memberane and semisintered polytetrafluoroethylene multilayer structure
07/05/1995CN1029200C Process for treating mixture containing dewaxing oil dewaxing
07/04/1995US5429744 Spacer elements between membrane surfaces of a fluid purifier, and a method for their manufacture
06/1995
06/29/1995WO1995017242A1 Hollow fiber semipermeable membrane of tubular braid and method for producing it
06/29/1995WO1995017152A1 Liquid dispenser for sterile solutions
06/29/1995DE4445973A1 Polyvinylidenfluorid-Membran Polyvinylidene fluoride membrane
06/28/1995EP0659103A1 Polysulphone membrane and process for producing the same
06/28/1995EP0455645B1 Microporous hydrophobic fluoropolymer composites
06/27/1995US5428123 Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range
06/23/1995CA2128296A1 Polyvinylidene fluoride membrane
06/22/1995DE4343114A1 Pervaporation and gas sepn. membranes sepn.
06/21/1995CN1103814A Method for fabricating composite hellow fibre ultrafiltration film and the products
06/21/1995CN1028967C Gas dehydration membrane apparatus
06/20/1995US5425878 Membranes for ion transport and method for obtaining them
06/20/1995US5425877 A permeate pipe having membrane sheet and glass fibers wound around radially, fixed by a crosslinked resins
06/20/1995US5425865 Includes a layer of an ethylenically unsaturated carboxylic acid which is graft polymerized with polymeric material of porous matrix on one of its surfaces; crosslinking improves transport characteristics
06/14/1995EP0656808A1 Filtration medium and method for making same
06/14/1995EP0656807A1 Filtration medium including substrate-supported porous membrane and method for the manufacture thereof
06/14/1995CN1103745A Rectifying dialyzer, bioreactor and membrane
06/14/1995CN1103603A Reinforced film with two reinforced-sides and its producing method
06/13/1995CA1335879C Receptor membranes
06/06/1995US5422411 Fluoropolymers for electrolytic cells
05/1995
05/31/1995EP0655013A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
05/31/1995CN1028609C High flux semipermeable membranes
05/26/1995WO1995014118A1 Methods for the separation of biological materials
05/26/1995WO1995013860A1 Membrane filter and a method of manufacturing the same as well as a membrane
05/26/1995WO1995013858A1 Hydrophilic compositions with increased thermal and solvent resistance
05/26/1995WO1995013855A1 Phase separation apparatus
05/24/1995CN1028492C Separating membrane and separation method
05/23/1995US5418061 Microporous polysulfone supports suitable for removal of low density lipoprotein-cholesterol
05/23/1995US5417832 Enhancing performance of perfluorinated ionomer membranes via dopant incorporation, method of making thereof and the membrane
05/18/1995WO1995013313A1 Hydrocyclosiloxane membrane prepared by plasma polymerization process
05/18/1995WO1995013125A1 Device and process for removing free hemoglobin from blood
05/18/1995DE4409997C1 Membrane for e.g. pervaporation having medial sepg. layer
05/18/1995CA2175913A1 Device and process for removing free hemoglobin from blood
05/17/1995EP0653241A1 Coated fibers
05/17/1995CN1102748A Polytetrafluoroethylene porous film and method for manufacturing the same
05/16/1995US5415775 Monolithic ceramic supports for filtration membranes
05/11/1995DE4409906C1 Composite membrane and process for the production thereof
05/10/1995EP0652042A1 Composite hydrogen separation metal membrane
05/09/1995US5413852 SIXEF™-durene polyimide hollow fibers
05/09/1995CA2135153A1 Composite hydrogen separation metal membrane
05/04/1995WO1995011739A1 Membrane and non-membrane sour gas treatment process
05/04/1995WO1995011738A1 Sour gas treatment process
05/04/1995CA2174347A1 Sour gas treatment process
05/02/1995US5411667 Method of selectively separating lead ions
05/02/1995US5411580 Oxygen-separating porous membranes
04/1995
04/27/1995WO1995011075A1 Method and apparatus for dewatering a porous wet web
04/26/1995EP0649675A1 Treatment of gas separation membranes with inert solvent
04/25/1995US5409785 Fuel cell and electrolyte membrane therefor
04/25/1995US5409525 Hydrous gel membranes for gas separation
04/25/1995US5409515 Filter apparatus and filter element
04/21/1995CA2118428A1 Treatment of gas separation membranes with inert solvent
04/19/1995CN1101590A A composite filter material
04/19/1995CN1028208C Making technology of reinforcement super filtering membrane
04/18/1995US5407467 Passing gas stream containing hydrogen sulfide, carbon dioxide, methane through selective membrane unit to remove carbon dioxide and hydrogen sulfide
04/18/1995US5407466 Membrane provides high selectivity for hydrogen sulfide over methane
04/13/1995WO1995009989A1 Micromachined flow switches
04/13/1995WO1995009988A1 Micromachined filters and flow regulators
04/13/1995WO1995009987A1 Micromachined fluid flow regulators
04/12/1995EP0647465A1 Microfiltration and/or ultrafiltration membrane, method of the preparation of such a membrane, and a method of the filtration of a liquid by means of such a membrane
04/12/1995EP0647156A1 Hollow fiber membrane incorporating a surfactant and process for preparing same
04/06/1995WO1995009195A1 Polymer membrane having a high permeability for alkanol
04/04/1995US5403485 Dialysis membrane made of cellulose acetate
04/04/1995CA1335064C Process for preparing composite membranes
04/04/1995CA1335063C Composite semipermeable membrane
03/1995
03/30/1995WO1995008581A1 Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
03/30/1995WO1995008360A1 Method and device for producing a hypoxic gas mixture
03/29/1995EP0645487A1 Method of preparing a support material for use with a filtration medium
03/29/1995EP0645176A1 Ion selective membrane spacer assembly
03/29/1995EP0645175A1 Spacer for dialysis, electrodialysis or electrolysis cells
03/29/1995EP0645174A1 Method for the removal of components causing turbidity, from a fluid, by means of microfiltration
03/29/1995EP0644928A1 Rectifying dialyzer, bioreactor and membrane
03/29/1995EP0562102B1 Process for improving heat and mass transfer through a wall
03/23/1995DE4330949A1 Process for producing zeolite high-temperature molecular sieve membranes having separating and reactive properties
03/22/1995EP0643616A1 Micromechanical filter and method for the manufacture thereof
03/22/1995CN1100338A Fluid separation composite membranes prepared from sulfonated aromatic polymers in lithium salt form
03/15/1995EP0642825A1 Bleach resistant polysulfone/polyrethane composite membranes
03/15/1995EP0642381A1 Filtration fabric laminates.
03/15/1995EP0436720B1 Hydrolyzed membrane and process for its production
03/15/1995CN1100001A The production and use of improved composite fluid separation membranes
03/14/1995US5397695 Attachment of compounds to polymeric particles using carbamoylonium compounds and a kit containing same
03/08/1995EP0641249A1 Supported microporous membranes
03/08/1995CN1099670A Method of preparing a support material for use with a filtration medium
03/07/1995US5395570 Hollow fibre membrane extrusion
03/07/1995US5395425 Apparatus employing porous diaphragms for producing useful work
03/04/1995CA2119483A1 Method for preparing a support material for use with a filtration medium
03/02/1995WO1995005890A1 Membranes prepared from crosslinkable soluble polymers
03/02/1995CA2169555A1 Membranes prepared from crosslinkable soluble polymers
03/01/1995EP0506701B1 Composite diaphragm, process for producing it and its use