| Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060) |
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| 10/07/1993 | DE4211522A1 Polymer membrane, useful for ultrafiltration, dialysis etc. - based on vinyl-aromatic monomer(s), 2H-tetrazole(s) with vinyl:phenyl substit(s), and polydiene graft base |
| 10/07/1993 | DE4210413A1 Membrane filter for sepn. of poly-dispersions into continuous and dispersed phases - is a bonded powder mass on a carrier support grid providing high mechanical strength etc., useful for sepg. fluids contg. particle or oil matter |
| 10/06/1993 | EP0564045A1 Composite membrane and its use for the dehydratation of organic solvents or concetrated acetic acid solutions |
| 10/05/1993 | US5250240 Melt blend solution consisting of polyolefin and diluent |
| 10/05/1993 | US5250184 Supported, continuos inorganic membrane, filtraiton |
| 10/05/1993 | CA1322764C Dehydration of organic oxygenates |
| 09/30/1993 | WO1993019115A1 Super porous polysaccharide gels |
| 09/30/1993 | WO1993018845A1 Alcohol-insoluble nylon microporous membranes |
| 09/30/1993 | DE4209405A1 Producing micro and ultrafiltration membranes - from ceramic, by drawing together membrane tubular bundle and tube cover in vacuum extrusion press |
| 09/29/1993 | EP0561916A1 Membrane made from multiblock polymer. |
| 09/28/1993 | US5248319 Gas separation membranes made from blends of aromatic polyamide, polymide or polyamide-imide polymers |
| 09/28/1993 | US5247727 Ceramic membrane removal tool |
| 09/28/1993 | CA1322444C Process for drying water-wet polycarbonate membranes |
| 09/28/1993 | CA1322443C Semi-permeable membranes comprising predominantly of polycarbonates derived from tetrahalobisphenols |
| 09/28/1993 | CA1322442C Tetrabromo bisphenol based polyestercarbonate membranes and method of using |
| 09/28/1993 | CA1322440C Gas separation membranes from bisphenol af polycarbonates and polyestercarbonates |
| 09/22/1993 | EP0561759A1 Supported liquid membrane and separation process employing same |
| 09/22/1993 | EP0561379A1 Filter medium having a limited surface negative charge for treating a blood material |
| 09/21/1993 | US5246743 Biphenyltetracarboxylic acids and hexafluoroisopropylidene biphenyltetracarboxylic acid |
| 09/21/1993 | US5246647 Solvent |
| 09/21/1993 | US5246587 Interfacially synthesized reverse osmosis membranes and processes for preparing the same |
| 09/21/1993 | US5246582 Synthetic hydrophilic membranes and method for their manufacture |
| 09/21/1993 | CA1322430C Wholly aromatic polyamides, processes for preparing them and structures formed from them |
| 09/21/1993 | CA1322428C Wholly aromatic polyamides, processes for preparing them and structures formed from them |
| 09/16/1993 | WO1993017781A1 Formation of zeolite membranes from sols |
| 09/15/1993 | EP0560244A2 A film-forming, starchy, polymeric composition and shaped articles, particularly films and sheets therefrom |
| 09/15/1993 | EP0559902A1 Permselective polyacrylonitrile copolymer membrane and production thereof |
| 09/15/1993 | CN1076138A Filtor and units of same |
| 09/14/1993 | US5245105 Separation of aluminum alkyls from olefins using polyphenylene oxide membrane |
| 09/14/1993 | CA1322134C Ceramic filtration membrane and fabrication process thereof |
| 09/14/1993 | CA1322081C Vapor permeable poly (etherimide) ester elastomer films |
| 09/08/1993 | EP0338074B1 Treatment of permeable membranes |
| 09/07/1993 | US5242636 Method of making a multilayer capillary membrane |
| 09/07/1993 | US5242595 Bacteria removal by ceramic microfiltration |
| 09/07/1993 | CA1321931C Composite membranes, their manufacture and their use |
| 09/01/1993 | EP0506858B1 New filter media for use in surgical and clean room masks |
| 08/31/1993 | US5240615 Filtration |
| 08/31/1993 | US5240614 Bioreactor of dual-skinned hollow polymeric membranes with microporous structure secured in enclosure |
| 08/31/1993 | US5240591 Membrane process for separating a mixture containing dewaxed oil and dewaxing solvent |
| 08/31/1993 | US5240587 Method of producing a filter material |
| 08/31/1993 | US5240480 Multicomponent metallic oxide dense layer and multicomponent metallic oxide porous layer |
| 08/31/1993 | US5240473 Utilization of ion transport membranes formed from multicomponent metal oxides |
| 08/31/1993 | US5240472 Membrane system; dryer unit incorporates selective surface flow adsorbent membrane of gamma-alumina or silica gel |
| 08/31/1993 | CA1321689C Process for preparing membranes from tetrahalobisphenol polycarbonates |
| 08/31/1993 | CA1321688C Polyimide gas separation membranes |
| 08/31/1993 | CA1321687C Process and dope for forming asymmetric gas separation membranes having graded density skins |
| 08/31/1993 | CA1321686C Asymmetric gas separation membranes having graded density skins |
| 08/25/1993 | EP0556569A2 Composite reverse osmosis membrane and novel acid chloride |
| 08/25/1993 | EP0556232A1 Composite membrane for facilitated transport processes |
| 08/24/1993 | US5238735 Microporous shaped article and process for preparation thereof |
| 08/24/1993 | US5238570 Asymmetric semipermeable membranes of aromatic polycondensates, processes for their preparation and their use |
| 08/24/1993 | US5238569 Porous material covered with thin film of polyphosphazene |
| 08/24/1993 | US5238568 Thickness limited in passage direction of fluid to be treated; contains fine powder dispersion for varying diameter of pores on outer face |
| 08/24/1993 | US5238567 Membrane process for separating a mixture containing dewaxed oil and dewaxing solvent |
| 08/24/1993 | US5238471 Spray deposition as aerosol on microporous substrate, annealing, rendered defect-free |
| 08/24/1993 | CA1321451C Method for production of hollow fiber membrane |
| 08/24/1993 | CA1321450C Bipolar membranes and methods of making same |
| 08/19/1993 | WO1993015651A1 Acrylic copolymer membranes for biosensors |
| 08/18/1993 | CN1021828C Continuous prepn. of ion exchange membrane used for different phase |
| 08/17/1993 | US5236592 Haemocompatible composite material and method of using thereof |
| 08/17/1993 | CA1321401C Aromatic polyether sulphones |
| 08/17/1993 | CA1321400C Aromatic polyether ketones |
| 08/17/1993 | CA1321358C Treatment of water |
| 08/11/1993 | EP0554862A1 Polyimide gas separation membranes for carbon dioxide enrichment |
| 08/10/1993 | US5234751 Paste extrusion, stretching |
| 08/10/1993 | US5234739 Polytetrafluoroethylene porous film and preparation and use thereof |
| 08/10/1993 | US5234598 Reaction product of an N-alkyl phenylenediamine and aromatic polyacyl chloride on support; interfacial polymerization; for desalination of water |
| 08/10/1993 | US5234597 Selective extraction of aromatic hydrocarbons from a mixture with non-aromatic hydrocarbons |
| 08/10/1993 | US5234594 Nanochannel filter |
| 08/10/1993 | US5234579 Membrane process for treating a charge containing dewaxing solvent and dewaxed oil |
| 08/10/1993 | US5234471 Polyimide gas separation membranes for carbon dioxide enrichment |
| 08/10/1993 | CA1321164C Bilayer electronically conductive polymers and process for their production |
| 08/10/1993 | CA1321153C Process for separating methane using permeable membrane |
| 08/04/1993 | EP0447467B1 Collagen film for use as a pervaporation membrane |
| 08/04/1993 | EP0300038B1 Microporous asymmetric polyfluorocarbon membranes |
| 08/03/1993 | US5232642 Melt spinning, annealing |
| 08/03/1993 | US5232601 Made-up of polysulfone; useful for hemodialysis treatment |
| 08/03/1993 | US5232598 Woven metal support with inorganic ceramic particle bridges bonded by inorganic adhesives |
| 08/03/1993 | US5232597 High degree of fibrillation on outer surface |
| 08/03/1993 | US5232472 Contains the ester derived from 1,3-diamino-2-hydroxypropane |
| 08/03/1993 | US5232471 Membranes formed from nitrated polyarylates |
| 08/03/1993 | CA1320805C Polyketone membranes |
| 08/03/1993 | CA1320804C Fluorinated polymeric membranes for gas separation processes |
| 08/03/1993 | CA1320803C Polyimide gas separation membranes |
| 07/28/1993 | EP0409828B1 Process for the recovery of alcohols using a perfluorinated ionomer membrane |
| 07/28/1993 | EP0373215B1 Porous inorganic membrane with reactive inorganic binder, and method of forming same |
| 07/23/1993 | CA2087421A1 Composite reverse osmosis membrane and novel acid chloride |
| 07/22/1993 | WO1993014186A1 Rectifying dialyzer, membrane and process |
| 07/22/1993 | WO1993013853A1 Process for producing semipermeable membrane |
| 07/22/1993 | WO1993013849A1 Filter and filter element |
| 07/15/1993 | DE4200320A1 New polyether-polycarbonate block copolymers - derived from 1,1-bis-(4-hydroxyphenyl)-cycloalkane(s) and polyether-glycol(s) by reaction with phosgene, etc. |
| 07/14/1993 | EP0550879A1 Process for coating cellulosic membranes |
| 07/14/1993 | EP0550798A1 Polysulfone hollow fibre membrane |
| 07/14/1993 | EP0540549A4 Formation of porous materials |
| 07/14/1993 | EP0348425B1 Protective surface treatment and relative product |
| 07/13/1993 | US5227500 Halogenated 1,3-dioxolanes and derivatives |
| 07/13/1993 | US5227458 Polycarbonate from dihydroxydiphenyl cycloalkane |
| 07/13/1993 | US5227342 Process of making porous ceramic materials with controlled porosity |
| 07/13/1993 | US5227101 Process of making microporous membranes from poly(etheretherketone)-type polymers and low melting point crystallizable polymers |
| 07/13/1993 | US5227070 Textile reinforced membrane filter, method for manufacture and application |