| 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) |
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| 10/07/1980 | CA1087042A1 Coating modification process for ultrafiltration systems |
| 09/17/1980 | EP0015293A1 Method and apparatus for producing hollow microspheres. |
| 09/16/1980 | US4222977 Process to produce inorganic hollow fibers |
| 09/16/1980 | US4222874 Balanced pressure tubular molecular filtration system |
| 09/16/1980 | US4222869 Dialyzing method of blood in artificial kidney |
| 09/09/1980 | CA1085531A1 Microporous sub-micron filter media |
| 09/03/1980 | EP0015149A1 Interfacially synthesized reverse osmosis membrane, process for the preparation thereof and its use in a process for removing solute from solute-containing water |
| 09/02/1980 | US4220543 Hemodialysis membrane; wear and chemical resistant, heat sealable |
| 08/12/1980 | CA1083496A1 High strength cast modules for supporting reverse osmosis membranes |
| 08/06/1980 | EP0014054A1 Process for the production of a reverse osmosis membrane, reverse osmosis membrane thus produced, and use of such membrane in a desalination process |
| 08/05/1980 | CA1083057A1 Pressure driven enzyme coupled membranes |
| 07/29/1980 | US4214612 Tube of non woven material for reversed osmosis |
| 07/24/1980 | WO1980001464A1 Reverse osmosis membrane |
| 07/22/1980 | US4214020 Subjecting fibers to pressure drop from their exterior to their interior |
| 07/22/1980 | US4213858 Supporting net |
| 06/17/1980 | CA1079651A1 Wave patterned support for dialyzer membrane |
| 06/03/1980 | US4206050 Perselective memebrane, absorbers and adsorbers |
| 04/30/1980 | EP0010425A1 Semipermeable composite membrane and the preparation thereof |
| 04/29/1980 | CA1076427A1 Process for the preparation of supported anisotropic membranes, for reversed osmosis, based on synthetic polyamides |
| 04/22/1980 | CA1076065A1 Method of making porous plastic diaphragms and the resulting novel diaphragms |
| 04/08/1980 | US4197206 Heat sealable ion permeable membranes |
| 04/08/1980 | CA1075179A1 Encapsulation of labile biological material |
| 03/20/1980 | WO1980000439A1 Method for compressing gaseous materials in a contained volume |
| 03/20/1980 | WO1980000438A1 Method and apparatus for producing hollow microspheres |
| 03/19/1980 | EP0008945A2 Semipermeable composite membrane, process for producing said membrane, and method of desalination using said membrane |
| 03/18/1980 | CA1073822A1 Ethylene-vinyl alcohol copolymer membranes with improved permeability characteristics and a method for producing the same |
| 03/11/1980 | US4192842 Spontaneous spreading; semipermeable for separation of oxygen from nitrogen-containing gas |
| 03/04/1980 | US4191811 Ion exchange membranes based upon polyphenylene sulfide and fluorocarbon polymeric binder |
| 03/04/1980 | US4191623 Dope, polymer, coagulation with electric current |
| 02/12/1980 | US4188418 Preparing ultrafiltration membrane containing inert, water-insoluble particles in organic polymer film |
| 02/05/1980 | US4187333 Embedding monomers in fiber walls, polymerization |
| 01/23/1980 | EP0006875A1 Mass-transfer membrane and processes using same |
| 01/01/1980 | CA1068996A Semipermeable membranes and the method for the preparation thereof |
| 12/27/1979 | WO1979001147A1 A microporous member with interconnected,oriented tapered voids |
| 12/25/1979 | US4180611 Smooth-surfaced nonwoven fabric |
| 12/04/1979 | US4177228 Method of production of a micro-porous membrane for filtration plants |
| 10/30/1979 | US4172774 Membranes |
| 10/16/1979 | US4171390 Isocyanate adduct in highy polar solvent reacted with hydrazine, carbodihydrazide, piperazine, or 1,4-diaminopiperazine |
| 09/25/1979 | CA1063038A1 Inverted osmotic action-core heating of tubular membrane |
| 09/18/1979 | US4168352 Semipermeable membranes in lead-acid batteries |
| 09/05/1979 | EP0003914A2 Dialysis composition |
| 09/05/1979 | EP0003829A1 Process for making composite membranes |
| 07/10/1979 | CA1058096A1 Tubular filtration element and method of making it |
| 06/26/1979 | CA1057207A1 Fibrous tube for membrane filtration with a tearing member |
| 06/19/1979 | CA1056746A1 Biologically active membrane material |
| 06/12/1979 | CA1056531A1 Water-in-oil sulphonated polymer liquid membrane formulation |
| 05/30/1979 | EP0002053A2 Polyamide based membrane for hemofiltration, method for its preparation, and its use |
| 05/22/1979 | US4155793 Continuous preparation of ultrathin polymeric membrane laminates |
| 05/01/1979 | CA1053417A1 Separation process |
| 04/24/1979 | CA1053108A1 Osmotically driven fluid dispenser |
| 04/17/1979 | CA1052708A1 Tubular membrane apparatus on supports for the treatment of fluids |
| 03/06/1979 | CA1049954A1 Hydrophobic substrate with grafted hydrophilic inclusions |
| 02/08/1979 | WO1979000040A1 Mass-transfer membrane and processes using same |
| 02/07/1979 | EP0000687A1 Process for the preparation of a microporous membrane to be used in filtration plants |
| 01/16/1979 | US4134742 Gas separation membranes |
| 01/16/1979 | CA1046424A1 Purification process |
| 01/02/1979 | US4132824 Method for casting ultrathin methylpentene polymer membranes |
| 01/02/1979 | US4132649 Gasket arrangement for purification apparatus |
| 11/14/1978 | US4125462 Cationic polyelectrolyte of poly(vinylimidazoline) bisulfate |
| 11/07/1978 | US4124458 Mass-transfer membrane and processes using same |
| 10/17/1978 | US4121022 Semi-permeable, lead acid storage batteries |
| 10/10/1978 | US4119408 Apparatus for maintaining the separation efficiency of immobilized liquid membranes in gas separation |
| 09/26/1978 | CA1039038A1 Process for producing a reverse osmosis module |
| 09/19/1978 | US4115492 Process for preparing microporous polyethylene hollow fibers |
| 09/19/1978 | US4115273 Wave patterned support for dialyzer membrane |
| 09/05/1978 | CA1037671A1 Electrolysis cell diaphragms and process for producing the same |
| 08/22/1978 | US4109066 Polyacrylic acid membranes for electrochemical use |
| 08/15/1978 | US4107097 Process for preparing polycation-polyanion electrolyte complexes having carboxylic acid and alkenyl radical substituents and films thereof |
| 08/08/1978 | US4105548 Separation device of rigid porous inorganic hollow filament and use thereof |
| 07/18/1978 | US4101423 Tubular filtration element and method of making it |
| 07/11/1978 | US4100064 Purification of water by reverse osmosis using a supported semi-permeable membrane |
| 06/20/1978 | US4096099 Porous synthetic resin film |
| 06/13/1978 | US4094792 Membrane fluid transfer method and apparatus |
| 06/06/1978 | US4093515 Laminated carbon-containing silicone rubber membrane for use in membrane artificial lung |
| 05/09/1978 | US4088576 Method of manufacture of tubular inertial filter |
| 04/25/1978 | US4086310 Of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)-propane, spreading solutions in styrene, dissolving |
| 04/04/1978 | US4082658 Hollow fiber membranes of ethylene copolymers and process for use |
| 03/14/1978 | CA1027721A1 Semi permeable membranes |
| 03/07/1978 | US4078112 Coating modification process for ultrafiltration systems |
| 03/07/1978 | US4077885 Granular inert layer of silicon dioxide or carbon black |
| 02/28/1978 | US4076626 High strength cast modules for supporting reverse osmosis membranes |
| 02/21/1978 | US4075092 High surface area permeable material |
| 02/21/1978 | US4075091 Blood, membranes |
| 02/14/1978 | US4073733 PVA membrane and method for preparing the same |
| 01/31/1978 | US4071590 Composite asymmetrical membranes |
| 01/31/1978 | US4071454 Dialysis membrane |
| 01/10/1978 | US4067803 Dialysis |
| 01/03/1978 | US4066553 Apparatus with supported tubular membranes for the treatment of fluids |
| 01/03/1978 | US4066512 Biologically active membrane material |
| 12/13/1977 | US4062882 Process for refining crude glyceride oils by membrane filtration |
| 12/06/1977 | US4061821 Semipermeable composite membranes |
| 11/01/1977 | US4056467 Hollow fibres |
| 11/01/1977 | US4056456 Process for preparing novel thin films |
| 10/25/1977 | US4055696 Porous polypropylene hollow filaments and method making the same |
| 09/27/1977 | US4051300 Hollow synthetic fibers |
| 09/27/1977 | US4051230 Porous membrane impregnated with organic chelating extractant, regeneration of chelating agent and release of metal cation by acid |
| 09/27/1977 | US4051002 Cation-exchange membrane, copolymer of ethylene and unsaturated carboxylic acid or salt |
| 09/06/1977 | US4046843 Process for preparing membranes for separation of substances |
| 08/30/1977 | US4045352 Ion-exchange hollow fibers |
| 08/02/1977 | US4039499 Membrane fibers, n-alkoxyalkyl nylon, polyvinyl alcohol, dialkylsulfoxide |