| 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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| 08/07/1979 | US4163725 Process for preparing of semipermeable membranes |
| 08/07/1979 | US4163714 Separating substances with pressure-driven affinity sorption membranes |
| 07/24/1979 | CA1058814A1 Method for producing a tubular multi-layered porous barrier |
| 07/17/1979 | CA1058525A1 Membrane separation of phenols from aqueous streams |
| 06/26/1979 | US4159251 Ultrafiltration membranes based on heteroaromatic polymers |
| 06/26/1979 | CA1057180A1 Hydrophobic polymeric membrane |
| 06/19/1979 | US4158649 Hydrophilic resin, hexadimethrine bromide |
| 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 |
| 05/29/1979 | US4156597 Ultrathin polyetherimide membrane and gas separation process |
| 05/08/1979 | CA1053866A1 Microcellular heterocyclic polymer structures |
| 05/01/1979 | US4152404 Hydroxyaluminum silicate complexes |
| 04/17/1979 | CA1052707A1 Asymmetric, semipermeable membranes of cyclic polyureas |
| 04/17/1979 | CA1052706A1 Lubricating oil regeneration through preheating prior to filtration by means of a semi-permeable membrane |
| 04/10/1979 | US4148734 Filter material and process for producing same |
| 04/04/1979 | EP0001233A1 Semi-permeable membranes from acrylonitrile copolymers and their application |
| 04/03/1979 | US4147745 Process for producing semipermeable membranes |
| 04/03/1979 | US4147622 Process for manufacturing membranes for osmotic separation |
| 03/21/1979 | EP0001047A2 Viscose membrane for dialysis, especially for hemodialysis, and process for its fabrication |
| 02/27/1979 | US4141838 Dialysis membrane, especially for hemodialysis, and method for producing same |
| 02/20/1979 | US4140815 Method of making single film, high performance bipolar membrane |
| 02/20/1979 | US4140537 Low immunogenic response, free of telopeptides, biological and medical application |
| 02/06/1979 | CA1047719A2 Microporous polyester membranes and polymer assisted phase inversion process for making same |
| 02/06/1979 | CA1047718A2 Microporous polyester membranes and polymer assisted phase inversion process for making same |
| 01/30/1979 | US4137137 Acyloxystyrene, a polyene, acrylic acid or its derivative and either a hydrocarbon or fluorine polymer |
| 01/30/1979 | CA1047675A1 Polyelectrolyte composite of polyvinyl alcohol derivative and membrane and fiber thereof |
| 01/23/1979 | US4135942 Containing an aliphatic polyvalent alcohol |
| 01/16/1979 | US4134837 Ethylene-vinyl alcohol copolymer membranes having improved permeability characteristics and a method for producing the same |
| 01/16/1979 | CA1046216A1 Altering gas permeabilities of polymeric material |
| 01/09/1979 | CA1046188A1 Semipermeable membranes of sulphonated polybenz-1,3-oxazin-2,4-diones |
| 01/02/1979 | US4132824 Method for casting ultrathin methylpentene polymer membranes |
| 01/02/1979 | US4132819 Method of shaping an organic polymer insoluble in a polar solvent |
| 01/02/1979 | CA1045747A1 Nitrogen linked cyclic polyether ion binding polymeric liquid purification materials |
| 12/26/1978 | CA1045296A1 Method for producing new biologically tolerated polymers |
| 12/12/1978 | US4129559 Heat treatment of membranes improves desalting capacity |
| 11/14/1978 | US4125462 Cationic polyelectrolyte of poly(vinylimidazoline) bisulfate |
| 11/14/1978 | CA1042166A1 Hollow fibers of acrylonitrile polymers for ultrafilter and method for producing the same |
| 10/31/1978 | US4123424 Polymeric piperazinamides and membranes for reverse osmosis made therefrom |
| 10/24/1978 | CA1040938A1 Method of processing porous metal filters |
| 10/17/1978 | US4121022 Semi-permeable, lead acid storage batteries |
| 10/17/1978 | US4120663 Permselective membrane of a double doped metallic oxide |
| 10/17/1978 | CA1040791A1 High diffusivity membranes |
| 10/03/1978 | US4118439 Polyelectrolytes |
| 09/26/1978 | US4116889 Bipolar membranes and method of making same |
| 09/19/1978 | US4115492 Process for preparing microporous polyethylene hollow fibers |
| 09/19/1978 | US4115465 Separation of aromatic hydrocarbons from mixtures, using polyurethane membranes |
| 09/12/1978 | US4113912 Hydrophilic porous structures and process for production thereof |
| 09/12/1978 | US4113628 Asymmetric polyimide membranes |
| 09/05/1978 | US4111810 Neutralized and acylated chitosan |
| 09/05/1978 | CA1037671A1 Electrolysis cell diaphragms and process for producing the same |
| 08/22/1978 | US4109066 Polyacrylic acid membranes for electrochemical use |
| 08/22/1978 | US4108765 Membrane separation of methanol from formaldehyde aqueous mixtures |
| 08/15/1978 | US4107049 Exposing polyacrylonitrile or acrylonitrile copolymer film or fiber and gaseous organic to glow or corona discharge |
| 08/15/1978 | US4106920 For separation of aliphatically unsaturated hydrocarbons of two to four carbon atoms from mixtures containing them |
| 08/08/1978 | US4105548 Separation device of rigid porous inorganic hollow filament and use thereof |
| 08/08/1978 | US4105533 Electrodialysis cell and method for producing cationic permeable membranes used therein |
| 07/11/1978 | US4100238 Process for producing permeable membranes |
| 06/27/1978 | US4097234 Soaking in sodium sulfate, comminution |
| 06/20/1978 | US4096227 Process for producing filled porous PTFE products |
| 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 |
| 05/02/1978 | US4087391 Ion-exchanger alkylsulphonated phenoxy polymers for membranes |
| 05/02/1978 | US4087388 Surfactant, polyethylene glycol ester |
| 04/25/1978 | US4086310 Of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)-propane, spreading solutions in styrene, dissolving |
| 04/25/1978 | US4086215 Crosslinked organic polyamide or polyhydrazine permselective polymeric membranes |
| 04/25/1978 | US4086209 Novel nitrogen-containing aromatic polymers and process for their preparation |
| 04/18/1978 | US4085090 Aromatic polymers containing a nitrogen-containing ring group, and process for preparation thereof |
| 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 |
| 02/21/1978 | US4075093 Permselective membrane |
| 02/14/1978 | US4073754 Polymer alloys of phosphonylated polystyrene or polyphenylene oxide with cellulose ester, polystyrene, or unsaturated polyester |
| 02/14/1978 | US4073733 PVA membrane and method for preparing the same |
| 02/14/1978 | US4073724 Reverse osmosis |
| 01/31/1978 | US4071590 Composite asymmetrical membranes |
| 01/31/1978 | US4071454 Dialysis membrane |
| 01/17/1978 | US4069215 Separation of organic sulfonates, reverse osmosis, ultrafiltration |
| 01/17/1978 | US4069151 Thin polycarbonate membranes for use in hemodialysis |
| 01/10/1978 | US4067805 Process for separating aqueous formaldehyde mixtures |
| 01/10/1978 | US4067804 Solute-separating membrane |
| 01/10/1978 | US4067803 Dialysis |
| 11/29/1977 | US4060488 Particulate membrane ultrafiltration device |
| 11/29/1977 | US4060081 Multilayer membrane useful as synthetic skin |
| 11/01/1977 | US4056496 Acrylic |
| 11/01/1977 | US4056467 Hollow fibres |
| 10/25/1977 | US4055696 Porous polypropylene hollow filaments and method making the same |
| 10/18/1977 | US4054707 Sulphonated polyaryl-ether-sulphones and membranes thereof |
| 10/11/1977 | US4053662 Used for separating uranium hexafluoride isotopes |
| 09/27/1977 | US4051230 Porous membrane impregnated with organic chelating extractant, regeneration of chelating agent and release of metal cation by acid |
| 09/13/1977 | US4047908 Nylon-polyvinyl alcohol graft copolymer |
| 08/30/1977 | US4045337 Desalination |
| 08/16/1977 | US4042359 Alkali borosilicate glass, silicon dioxide, boron oxide |
| 08/02/1977 | US4039703 Method for producing a tubular multi-layered porous barrier |
| 08/02/1977 | US4039499 Membrane fibers, n-alkoxyalkyl nylon, polyvinyl alcohol, dialkylsulfoxide |
| 08/02/1977 | US4039440 Reverse osmosis membrane |
| 07/19/1977 | US4036748 Asymmetric, semipermeable membranes of polybenz-1,3-oxazine diones-(2,4) |
| 07/12/1977 | US4035558 Process for producing organic-inorganic polyion complex |
| 07/12/1977 | US4035459 Process for spinning dry-fiber cellulose acetate hollow fiber membranes |
| 07/12/1977 | US4035457 Nonbiodegradable polymers |