| 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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| 03/10/1992 | CA1296976C Blood serum test strip |
| 03/05/1992 | WO1992003215A1 Hydrophilic semipermeable membranes based on copolymers of acrylonitrile and hydroxyalkyl esters of (meth) acrylic acid |
| 03/05/1992 | DE4120919A1 Membranes, esp. for gas sepn. and pervaporation - comprise crosslinked films based on copolymers of N-substd.-maleimide(s) and vinyl¨ ether(s)¨, on a suitable support |
| 03/04/1992 | EP0473541A2 Process for enrichment or separation, copolyamide and copolyimidamide and their use |
| 03/04/1992 | EP0473459A2 Reverse osmosis membranes of polyamideurethane |
| 03/04/1992 | EP0473290A2 Multilayer reverse osmosis membrane of polyamide-urea |
| 03/04/1992 | EP0472799A1 Apparatus for producing a hypoxic gaseous mixture |
| 03/04/1992 | EP0472596A1 Surface fluorination of membranes. |
| 03/03/1992 | US5093489 Modified chitin for biocompatible dialysis membranes iv and process for preparation of modified cellulose and modified chitin for use therewith |
| 03/03/1992 | US5093488 Modified chitin for biocompatible dialysis membranes iii and process for preparation of modified cellulose and modified chitin for use therewith |
| 03/03/1992 | US5093486 Modified chitin for biocompatible dialysis membranes ii and process for preparation of modified cellulose and modified chitin for use therewith |
| 03/03/1992 | US5093315 Aqueous solutions or solids |
| 03/03/1992 | US5093003 Halogenated polyurethanes |
| 03/03/1992 | US5093002 Crosslinked Polysiloxane Elastomeric Membrane |
| 03/01/1992 | WO1992003217A1 Membranes having selective permeability |
| 03/01/1992 | CA2088485A1 Membranes having selective permeability |
| 03/01/1992 | CA2050127A1 Polymeric membranes |
| 03/01/1992 | CA2024413A1 Process for obtaining an hypoxic gas mixture and apparatus for implementation of this process |
| 02/27/1992 | DE4026657A1 Sterile filter - made of biocompatible titanium materials |
| 02/26/1992 | EP0472476A2 Process for the production of a asymmetric ultrathin mineral membrane |
| 02/26/1992 | EP0471910A1 Process for making a ceramic filter |
| 02/26/1992 | EP0471763A1 Process of preparing cross-linked gas selective membranes |
| 02/25/1992 | US5091087 Coating with a polymer matrix, compression molding to induce partial agglomeration, extracting remaining matrix |
| 02/25/1992 | US5091086 Permeable, porous polymeric membrane with hydrophilic character, methods for preparing said membranes and their use |
| 02/25/1992 | CA1296283C Process for hydrotreatment of liquid phase heavy hydrocarbons, with the presence of a dispersed catalyst |
| 02/21/1992 | CA2035180A1 Ceramic filter and process for making it |
| 02/19/1992 | EP0471650A1 Copolyimides, process for their preparation and their use |
| 02/19/1992 | EP0471355A2 Ceramic hollow bodies and process of manufacturing the same |
| 02/18/1992 | US5089299 Composite ceramic micropermeable membrane, process and apparatus for producing such membrane |
| 02/18/1992 | US5089192 Casted from solution containing acid |
| 02/18/1992 | US5089138 Separating with an agent comprising an aliphatic ester of a polysaccharide |
| 02/18/1992 | US5089135 Carbon based porous hollow fiber membrane and method for producing same |
| 02/18/1992 | US5089092 Controlling diameters of pores by changing electrolysis voltage |
| 02/18/1992 | CA2049266A1 Concentration or separation method, copolyamides and copolyimids-amides and the use thereof |
| 02/18/1992 | CA2049265A1 Copolyimides, their preparation and the use thereof |
| 02/16/1992 | CA2049200A1 Oxygen-separating porous membranes |
| 02/12/1992 | EP0470822A1 Hydrogen-permeable composite metal membrane |
| 02/12/1992 | EP0470704A1 Process for dehydration of organic oxygenates |
| 02/12/1992 | EP0470699A1 Membrane process for dewatering lube oil dewaxing solents |
| 02/12/1992 | EP0470340A1 Titania substrates and fabrication |
| 02/11/1992 | US5087367 Hydrolyzed membrane and process for the preparation of the same |
| 02/11/1992 | US5087366 Of acetic and/or propionic and/or butyric acid |
| 02/11/1992 | US5087330 Anodizing aluminum substrate, changing voltage to form pores of different sizes |
| 02/11/1992 | CA2048849A1 Thermally stable composite hydrogen-permeable metal membranes |
| 02/07/1992 | CA2044814A1 Process for dehydration of organic oxygenates |
| 02/07/1992 | CA2042913A1 Membrane process for dewatering lube oil dewaxing solvents |
| 02/06/1992 | WO1992001735A1 Process for chemically, hydrophilically and anionically modifying the surfaces of moulded bodies composed of aromatic groups-containing polymers and modified moulded bodies thus produced |
| 02/06/1992 | WO1992001506A1 Formation of porous materials |
| 02/05/1992 | EP0469657A1 Multilayer membrane and production thereof |
| 02/05/1992 | EP0469404A2 Polyestercarbonates based on 1,1-bis-(4-hydroxyphenyl)-alkylcycloalkanes and thermoplastic blends thereof |
| 02/05/1992 | EP0469403A2 High molecular weight polyester based on 1,1-bis-(4-hydroxyphenyl)-alkylcycloalkanes and thermoplastic blends thereof |
| 02/04/1992 | US5086157 Aromatic polyether sulphones based on dihydroxy-diphenyl-cyclo-alkanes and films therefrom |
| 02/04/1992 | US5085778 Process for dehydration of organic oxygenates |
| 02/04/1992 | US5085777 Reverse osmosis membranes of polyamideurethane |
| 02/04/1992 | US5085775 Thin film composite ultrafiltration membrane |
| 02/04/1992 | US5085774 Increasing the draw ratio |
| 02/04/1992 | US5085676 Porous polymeric substrate and polyamide separating layer |
| 02/04/1992 | CA1295437C2 Amphiphilic polyimide precursor and process for preparing the same |
| 02/03/1992 | CA2047782A1 Multilayer membrane and process of manufacturing the same |
| 01/30/1992 | DE4023524A1 Verfahren zur chemischen, hydrophil-anionischen modifizierung von oberflaechen von formkoerpern aus aromatische gruppen aufweisenden polymeren sowie die dabei erhaltenen modifizierten formkoerper Methods for chemical, hydrophilic anionic surface modification of formkoerpern of aromatic groups containing polymer and the thus obtained modified formkoerper |
| 01/29/1992 | EP0467903A1 Process for the preparation of chlorine-resistant polyester semipermeable membranes. |
| 01/29/1992 | EP0229132B1 Flooded biological film reactor for water treatment, with gas charging via a membrane |
| 01/28/1992 | US5084548 Fluorinated poly(ether sulfone) |
| 01/28/1992 | US5084349 For dialysis, free from contamination through adsorption with microglobulin while minimizing the amount of water removed fro m blood |
| 01/28/1992 | US5084220 Membrane filtration apparatus and method of making a membrane filtration unit |
| 01/28/1992 | US5084182 Method for manufacturing of multilayer reverse osmosis membrane of polyamide-urea |
| 01/28/1992 | US5084179 Narrow pore-size distribution polytetramethylene adipamide or nylon 46 membranes and process for making them |
| 01/28/1992 | CA1294745C Asymmetrical microporous hollow fiber for hemodialysis and a process for manufacturing such fibers |
| 01/23/1992 | WO1992001007A1 Polymerisable porphyrins |
| 01/23/1992 | DE4021052A1 Hollow membrane of acrylonitrile] polymer with inner fine pore layer - having sepn. activity and coarser pore outer layer with pores extending to outer surface |
| 01/22/1992 | EP0467806A1 Porous carbon/carbon composite filter membrane support with a carbon fiber mat substrate and process of manufacturing the same |
| 01/22/1992 | EP0467735A1 Pyrogen separations by ceramic ultrafiltration |
| 01/22/1992 | EP0467692A2 A method of forming an electronically conductive composite layer on a substrate in a device containing solid electrolyte |
| 01/22/1992 | EP0467525A1 Process for treating a mixture containing dewaxed oil and dewaxing solvent |
| 01/21/1992 | US5082921 Benzotrifluoride aryl ether polymer |
| 01/21/1992 | US5082565 Semipermeable membrane made from polyether ketones |
| 01/21/1992 | US5082472 Composite membrane for facilitated transport processes |
| 01/21/1992 | CA2041685A1 Method of forming an electronically conductive composite layer on a substrate in a device containing solid electrolyte |
| 01/21/1992 | CA1294731C Copolymeric and amphiphilic polyimide precursor, process for preparing the same and thin film |
| 01/17/1992 | CA2042921A1 Process for treating a mixture containing dewaxed oil and dewaxing solvent |
| 01/15/1992 | EP0466470A2 Aromatics/saturates separation using membranes |
| 01/15/1992 | EP0466469A2 Aromatics/saturates separation using membranes |
| 01/15/1992 | EP0466381A1 Process for producing precision cartridge filter |
| 01/15/1992 | EP0466011A1 Separation membrane |
| 01/15/1992 | EP0465649A1 Composite semipermeable membrane and production thereof |
| 01/14/1992 | US5080698 Aromatic polyethers containing cyano groups for gas separation |
| 01/14/1992 | CA1294093C Polyphosphazene fluid separation membranes |
| 01/12/1992 | CA2045161A1 Sulfonated polysulfone membranes for aromatics/saturates separation |
| 01/12/1992 | CA2044000A1 Polysulfone membranes for aromatics/saturates separation |
| 01/08/1992 | EP0465380A2 Hemocombatible composite material |
| 01/08/1992 | EP0465306A2 Permeable membrane excellent in biocompatibility |
| 01/08/1992 | EP0464718A1 Oxygen-permeable polymeric membranes |
| 01/08/1992 | EP0464717A1 Oxygen-permeable polymeric membranes |
| 01/07/1992 | US5079272 Porous membrane formed from interpenetrating polymer network having hydrophilic surface |
| 01/02/1992 | EP0463627A2 Hydrophylized microporous polytetrafluorethylene membrane and production process thereof |
| 01/02/1992 | DE4117391A1 Asbestos-free microporous diaphragms for chlor:alkali cells - made from mixt. of non-modified PTFE and highly functionalised PTFE as hydrophilising agent |
| 12/31/1991 | US5077385 Melt processed polyketone-based barrier polymer materials |
| 12/31/1991 | US5077114 Heat resistant nondeforming membrane for filtering exhaust gases, microorganisms dialysis |
| 12/31/1991 | US5076935 Filtration membranes made from polyethersulfone/phenoxy resin blend |
| 12/31/1991 | US5076933 Filtration with diethylaminoethyl cellulose filter membrane an d quaternary aminoalkyl salt-coated filters |