| 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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| 05/26/1992 | US5116650 Dioxole/tfe copolymer composites |
| 05/26/1992 | US5116504 Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same |
| 05/26/1992 | CA1301993C Polyquinoxaline polymers, and articles comprising same |
| 05/19/1992 | US5115076 Aromatic copolyether ketones of dihydroxydiphenyl alkanes and phthaleins and a process for their production |
| 05/19/1992 | US5114581 Back-flushable filtration device and method of forming and using same |
| 05/19/1992 | US5114515 Method for forming polymer composite films using removable substrates |
| 05/19/1992 | CA1301197C Process for recovery of alcohols using a perfluorinated ionomer membrane |
| 05/19/1992 | CA1300836C Non-adsorptive semipermeable filtration membrane |
| 05/14/1992 | WO1992007899A2 Articles having a hydrophilic polymeric shell and method for preparing same |
| 05/14/1992 | WO1992007649A1 Composite membrane for facilitated transport processes |
| 05/14/1992 | CA2094711A1 Articles having a hydrophilic polymeric shell and method for preparing same |
| 05/13/1992 | EP0485077A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle |
| 05/13/1992 | EP0484466A1 Membrane for separating liquid mixtures of substances by pervaporation. |
| 05/12/1992 | US5112941 Aromatic polymide separation membrane |
| 05/12/1992 | US5112892 Casting a solution of a polymer on a support and coagulation |
| 05/12/1992 | US5112487 Porous membrane and production process thereof |
| 05/12/1992 | CA1300806C Hydrophilic porous membrane of polyvinylidene fluoride and methodfor production thereof |
| 05/07/1992 | DE4034823A1 Prepn. of polymer contg. conjugated polyene - by polymerising per:fluoroalkyl acetylene(s) using tungsten-contg. catalyst for gas- or solvent-permeable membrane, photoresist etc. |
| 05/06/1992 | EP0483722A1 Process for polymerization of partly fluorinated hydrocarbons containing a triple bond |
| 05/06/1992 | EP0483380A1 Processes for synthesizing cyclodextrin polymer and producing cyclodextrin film |
| 05/06/1992 | CA2054046A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle |
| 05/05/1992 | US5110879 Miscible blends of polyimide polymers and process for forming the same |
| 05/05/1992 | US5110478 Catalytic conversion over membrane composed of a pure molecular sieve |
| 05/05/1992 | US5110470 Ceramic filter and process for making it |
| 05/05/1992 | US5110385 Ion exchange membranes, bonding a vinyl fluoride copolymer, fluorocarbon dispersant |
| 04/30/1992 | WO1992006775A1 Reverse osmosis or nanofiltering membrane and process for its manufacture |
| 04/30/1992 | DE4033626A1 Porous ceramic membranes prepn. for filtration - by coagulating suspension of ceramic material in soln. of plastics material and heating to volatilise plastics and sinter ceramic material |
| 04/29/1992 | EP0482171A1 Membrane for isolating virus from solution |
| 04/29/1992 | CN1060614A Making technology of reinforcement super filter membrane |
| 04/28/1992 | US5108607 Polyamide-imide copolymer and additive of polyethylene glycol and polyvinylpyrrolidone |
| 04/28/1992 | US5108474 Smoke filter |
| 04/28/1992 | US5108465 Gastight membrane which conducts both electrons and oxygen ions; pressure differences between compartments |
| 04/28/1992 | US5108383 Membranes for absorbent packets |
| 04/22/1992 | EP0481660A1 Membranes |
| 04/22/1992 | EP0481659A1 Deposition process |
| 04/22/1992 | EP0481658A1 Deposition process |
| 04/22/1992 | EP0207951B1 Osmotic concentration by membrane |
| 04/22/1992 | CN1016349B Process for preparing highly soluble aromatic polyimides |
| 04/21/1992 | US5106654 Method of forming a dense, high temperature electronically conductive composite layer on a porous ceramic substrate |
| 04/21/1992 | US5106505 Condenser/membrane permeater |
| 04/21/1992 | US5106502 Porous inorganic membrane with reactive inorganic binder |
| 04/20/1992 | CA2052309A1 Deposition process |
| 04/20/1992 | CA2052297A1 Deposition process |
| 04/16/1992 | WO1992005864A1 Filter for liquor filtration |
| 04/15/1992 | EP0480599A1 Membrane suitable for the dehydration of organic oxygenates |
| 04/15/1992 | EP0480039A1 Composite membrane |
| 04/14/1992 | US5104948 Electroconductive, oxidation resistance |
| 04/14/1992 | US5104729 Coating with surfactant, hydrogel |
| 04/14/1992 | US5104546 Pyrogens separations by ceramic ultrafiltration |
| 04/14/1992 | US5104539 Metal oxide porous ceramic membranes with small pore sizes |
| 04/14/1992 | US5104428 Separation membrane |
| 04/14/1992 | US5104425 Gas separation by adsorbent membranes |
| 04/14/1992 | CA1298739C Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups |
| 04/12/1992 | CA2049169A1 Membrane suitable for the dehydration of organic oxygenates |
| 04/10/1992 | WO1992005862A1 Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane |
| 04/10/1992 | CA2093332A1 Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane |
| 04/08/1992 | EP0479553A1 Production of porous ceramics |
| 04/08/1992 | EP0479187A1 Filter for liquor filtration |
| 04/08/1992 | EP0478842A1 Filter for the filtration of human cerebrospinal fluid |
| 04/08/1992 | EP0321569B1 Process for separating liquid mixture |
| 04/07/1992 | US5102917 Blending with particular solid and second polymer; extrusion, leaching of second polymer and solid |
| 04/07/1992 | US5102590 Process for hollow fiber membrane for artificial lung |
| 04/07/1992 | US5102551 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent |
| 04/07/1992 | US5102539 Method of producing a membrane and a membrane for microfiltration, ultrafiltration, pervaporation or reverse osmosis of suspensions, emulsions and for gas separation |
| 04/01/1992 | EP0477689A1 Process for the preparation of porous polysulfone media suitable for filtration |
| 04/01/1992 | EP0477224A1 Perfluorodioxole membranes. |
| 03/31/1992 | US5100596 Synthesis of membrane composed of a pure molecular sieve |
| 03/29/1992 | WO1992005865A1 Filtration film |
| 03/29/1992 | CA2069758A1 Filtration membrane |
| 03/26/1992 | DE4029808A1 Segmented aromatic polycarbonate(s) for gas sepn. membranes - contg. aromatic carbonate¨ of 1,1-bis-4-hydroxyphenyl-cycloalkane(s), and hydrogenated dimer fatty acid polyester for sealing |
| 03/25/1992 | EP0476875A2 Process for the purification and concentration of biologically active materials |
| 03/25/1992 | EP0476866A1 Improved polymeric membranes |
| 03/25/1992 | EP0476370A2 Process for the separation of water from mixtures containing water and alcohols and/or carboxylic acids and/or carboxylic acid esters |
| 03/25/1992 | EP0476363A1 Zeolite membrane |
| 03/25/1992 | EP0476198A1 Microporous polyolefin membrane and method of production thereof |
| 03/25/1992 | CN1059737A Oxygen-permeable polymeric membranes |
| 03/25/1992 | CN1059736A Oxygen-permeable polymeric membranes |
| 03/25/1992 | CN1059672A Oxygen-separating porous membranes |
| 03/24/1992 | US5098977 Methods and compositions for providing articles having improved biocompatability characteristics |
| 03/24/1992 | US5098574 Purification with membranes and filtration |
| 03/24/1992 | US5098571 Aggregation of alumina and sintering with sintering aid of alumina-zirconia and sintering |
| 03/24/1992 | US5098570 Polyurea made from diisocyanate and diamine and a chain extender of a dianhydride and an epoxy, diisocyanate, polyester and diamine |
| 03/24/1992 | US5098569 Modified surface polymers as supports |
| 03/18/1992 | WO1992004971A1 Cationic charge modified microporous membranes |
| 03/18/1992 | EP0475608A1 Membrane and use thereof in an ileostomy bag |
| 03/18/1992 | EP0475053A1 Oxygen-separating porous membranes |
| 03/18/1992 | EP0474634A1 Gas-permeable, inorganic membranes |
| 03/18/1992 | CN1015908B Process for the preparation of cellulose film, cellulose film produced thereby, artificial skin graft and its use |
| 03/17/1992 | US5096745 Dissolving titanium alkoxide in alkyl alcohol, contacting with water, colloid, solidification, sintering gel |
| 03/17/1992 | US5096592 Multi-block polymer comprising an ester prepolymer, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations |
| 03/17/1992 | US5096586 Membranes having selective permeability |
| 03/17/1992 | US5096585 Process for preparing protein non-adsorptive microporous polysulfone membranes |
| 03/17/1992 | US5096473 Filtration fabric laminates |
| 03/17/1992 | US5096468 Cellulose acetate butyrate gas separation membranes |
| 03/15/1992 | CA2050504A1 Porous polysulfone media suitable for filtration |
| 03/11/1992 | EP0474617A1 Process for surface modifying a support membrane |
| 03/11/1992 | EP0474533A1 Bidimensional organic membranes and process for their preparation |
| 03/11/1992 | EP0474424A2 Membranes |
| 03/11/1992 | EP0474370A1 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same |
| 03/10/1992 | US5094919 Polyimide copolymers and process for preparing the same |