| 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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| 07/03/1984 | CA1170009A1 Modified polyvinylalcohol containing semipermeable composite membranes, process for their manufacture and their use |
| 06/27/1984 | EP0112134A2 Gas-selectively permeable membrane and method of forming said membrane |
| 06/27/1984 | EP0111714A2 Dynamic membranes for reverse osmosis and ultrafiltration with good flow qualities |
| 06/27/1984 | EP0111663A2 Membrane and process for producing the membrane |
| 06/26/1984 | US4456708 Method for the preparation of thin-skinned asymmetric reverse osmosis membranes and products thereof |
| 06/26/1984 | CA1169610A1 Highly anisotropic membranes |
| 06/13/1984 | EP0110580A2 Improved process for removing pyrogens utilizing a hydrophobic microporous membrane |
| 06/12/1984 | US4454268 Starch-based semipermeable films |
| 06/12/1984 | US4454085 Process for producing asymmetrical hollow filament membranes of polyamide |
| 06/12/1984 | US4453320 Process for changing the water content of water-absorbing or water-releasing material |
| 06/12/1984 | CA1169193A1 Gas separating material |
| 06/12/1984 | CA1168811A1 Microporous polyethylene hollow fibers and a process for preparing the same |
| 06/05/1984 | CA1168594A1 Process for changing the water content of water- absorbing or water-releasing material |
| 05/29/1984 | US4451424 Method of gelling cast, polysulfone membranes |
| 05/29/1984 | CA1168009A1 Process for the production of dry-spun hollow polyacrylonitrile fibres and filaments |
| 05/29/1984 | CA1168007A1 Method of gelling cast, polysulfone membranes |
| 05/29/1984 | CA1168006A1 Asymmetric membranes and process therefor |
| 05/22/1984 | US4450126 Casting a formic acid solution of high-molecular-weight homopolymer and other nylon polymers |
| 05/16/1984 | EP0108601A2 Polypropylene membranes |
| 05/16/1984 | EP0108499A1 Apparatus for the separation of hydrogen sulfide from a gas mixture |
| 05/15/1984 | US4448687 Process for the production of semipermeable polybenzimidazole membranes with low temperature annealing |
| 05/15/1984 | CA1167211A1 Process for preparing hollow microporous polypropylene fibers |
| 05/08/1984 | CA1167190A1 Organic solution of fluorinated copolymer having carboxylic acid groups |
| 05/08/1984 | CA1166813A1 Method for recovering efficiency of semipermeable membrane |
| 05/02/1984 | EP0107636A1 Multicomponent membrane for gas separation |
| 05/02/1984 | EP0037836B1 Polyvinylidene fluoride resin hollow filament microfilter and process for producing same |
| 05/01/1984 | US4446024 Ceramics |
| 05/01/1984 | CA1166414A1 Process for producing aromatic polyimide hollow filaments |
| 05/01/1984 | CA1166411A1 Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids |
| 04/24/1984 | US4444716 Method for manufacture of hollow fiber |
| 04/24/1984 | US4444663 Membrane and method for manufacture thereof |
| 04/24/1984 | US4444662 Microporous laminate |
| 04/03/1984 | US4440919 Crosslinked with resonance free di(alkene tertiary amine) cyclic compounds |
| 04/03/1984 | US4440643 Imidation of a polyamic acid coating |
| 04/03/1984 | CA1164848A1 Process for producing aluminas or finely divided alumina-magnesia spinels having a homogeneous porous structure |
| 03/27/1984 | US4439322 Ionic copolymer |
| 03/27/1984 | US4439217 Permselective element for gas separation |
| 03/21/1984 | EP0034630B1 Separation device of codierite ceramic and alpha-alumina |
| 03/14/1984 | EP0102752A1 Polyamide of disulfonated diamine and permselective membrane thereof |
| 03/13/1984 | US4436887 Contact lenses, oxygen permeability |
| 03/13/1984 | US4436626 Capillary diaphragms for use in diafiltration |
| 02/28/1984 | US4434116 Method for making a porous fluorinated polymer structure |
| 02/21/1984 | US4433151 Oxy benzoic acid terminated polyether derivatives of 8-hydroxy quinolines |
| 02/21/1984 | US4433128 Reacting aromatic polyisocyanate with castor oil and trimethylolpr |
| 02/21/1984 | US4433082 Process for making liquid composition of perfluorinated ion exchange polymer, and product thereof |
| 02/21/1984 | US4432923 Process for the production of dry-spun hollow polyacrylonitrile fibers and filaments |
| 02/21/1984 | US4432920 Forming a membrane from dispersion blend of waxy or fatty substance and high polymer, then solvent extraction |
| 02/21/1984 | US4432802 Inclusion compound-containing composite |
| 02/15/1984 | EP0100552A2 Hydrophilized membrane of porous hydrophobic material and process of producing same |
| 02/14/1984 | US4431545 Microporous filter system and process |
| 02/08/1984 | EP0100285A1 Hollow fibre for the treatment of blood |
| 02/01/1984 | EP0099686A2 Process for preparing polypiperazinamide anisotropic membranes |
| 02/01/1984 | EP0099432A1 Permselective membrane |
| 01/31/1984 | US4428776 Cellulosic semipermeable membranes containing silicon compounds |
| 01/31/1984 | CA1161595A1 Photocurable polymers obtained from succinylosuccinic acid and maleic acid derivatives, processes for the preparation of the polymers, and use of the polymers |
| 01/31/1984 | CA1161590A1 Low energy-curable high solids coatings |
| 01/31/1984 | CA1161215A1 Process for preparing liquophilic polyamide membrane filter media and product |
| 01/25/1984 | EP0099187A1 Separation of gaseous mixtures using a semi-permeable membrane |
| 01/24/1984 | US4427419 Semipermeable membranes prepared from polymers containing pendent sulfone groups |
| 01/18/1984 | EP0098731A1 Method for producing oxygen and nitrogen and membrane therefor |
| 01/18/1984 | EP0098518A2 Porous corrosion-resistant separators consisting of metallic screens coated by ceramic oxides |
| 01/18/1984 | EP0098392A2 Filtration membrane and process for producing the membrane |
| 01/17/1984 | US4426228 Amine oxide, discoloration inhibition |
| 01/11/1984 | EP0097770A2 Oxygen gas permselective membrane |
| 01/04/1984 | EP0097424A2 Cellulosic semipermeable membranes |
| 01/03/1984 | US4424311 Graft polymer of oxyethylene unit-con-taining unsaturated monomer on vinyl chloride polymer |
| 12/21/1983 | EP0096339A2 Multilayer membrane and its use in the separation of liquids by pervaporation |
| 12/21/1983 | EP0096306A2 Filter element having microporous filter membrane |
| 12/13/1983 | US4420612 Catalyst membrane |
| 12/08/1983 | WO1983004186A1 Filter element having microporous filter membrane |
| 12/07/1983 | EP0095554A2 Microporous hollow fiber membrane for plasmapheresis and process for the preparation of the membrane |
| 12/06/1983 | US4419486 Membranes |
| 12/06/1983 | US4419308 Solvent extraction of imide or isocyanurate |
| 12/06/1983 | CA1158238A1 Process for preparing porous shaped material of acylated chitin derivative |
| 12/06/1983 | CA1158235A1 Chitin containing poly-ion complex |
| 11/23/1983 | EP0094919A2 Ion exchange inorganic films made up of layered structure insoluble acid salts of tetravalent metals and/or their derivatives and process for the preparation of the same |
| 11/16/1983 | EP0094226A2 Filter systems |
| 11/16/1983 | EP0094060A2 Process for the manufacture of membranes on the basis of heteropolycondensates of silicic acid, membranes so produced and their use |
| 11/16/1983 | EP0094050A2 Ultrathin film, process for production thereof, and use thereof for concentrating a specified gas in a gaseous mixture |
| 11/15/1983 | US4415608 Continuous production of polymethylpentene membranes |
| 11/15/1983 | US4415512 Method and apparatus for producing hollow metal microspheres and microspheroids |
| 11/15/1983 | US4415455 Reverse osmosis membranes based on hydroxyalkyl methacrylate and methacrylic acid copolymers |
| 11/15/1983 | CA1157195A1 Modified polymers |
| 11/08/1983 | CA1156411A1 Microporous siloxane polymer membrane, and process for its preparation |
| 11/08/1983 | CA1156410A1 Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid |
| 11/02/1983 | EP0092840A1 Filtration membrane and process for its manufacture |
| 11/02/1983 | EP0092587A1 Polymethyl methacrylate hollow yarn ultra-filtration membrane and process for its production |
| 11/01/1983 | US4413106 Suspension, chlorinated hydrocarbon |
| 11/01/1983 | US4412922 Positive-charged ultrafiltration membrane for the separation of cathodic/electrodeposition-paint compositions |
| 11/01/1983 | US4412921 Coating, vaporization, shrinkage, noncracking |
| 10/26/1983 | EP0092417A1 Selectively gas-permeable composite membrane and process for production thereof |
| 10/18/1983 | US4410568 Process for preparing selective permeable membrane |
| 10/18/1983 | US4410338 Gas separating members and a method of making the same |
| 10/18/1983 | CA1155591A1 Polyurethane polymers characterized by lactone groups and hydroxyl groups in the polymer backbone |
| 10/11/1983 | US4409339 Hydrophilic sulfonated polyolefin porous membrane and process for preparing the same |
| 10/11/1983 | US4409162 Process for producing acrylonitrile separation membranes in fibrous form |
| 10/11/1983 | CA1154916A1 Treatment of reverse osmosis membranes |
| 10/05/1983 | EP0090483A2 Polyamide membrane and process for its production |
| 10/05/1983 | EP0090350A1 Non-porous membrane for hydrogen diffusion, and its use |
| 10/04/1983 | US4408023 Polyurethane diacrylate compositions useful for contact lenses and the like |