| 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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| 01/07/1981 | EP0021422A1 Gas separating member |
| 01/06/1981 | CA1093240A1 Thin polycarbonate membranes for use in hemodialysis |
| 01/06/1981 | CA1093011A1 Method of producing a membrane of a high molecular substance |
| 12/30/1980 | US4242208 Semipermeable composite membrane and process for preparation thereof |
| 12/24/1980 | WO1980002805A1 Process for the treating of and/or removal of substances from a liquid,especially whole blood,and a device and a membrane for the realization of said process |
| 12/23/1980 | US4241035 Synthetic imogolite |
| 12/23/1980 | US4240914 Selective permeable membrane and process for preparing the same |
| 12/16/1980 | US4239793 Mixture of a polyvinyltriorganosilane and a polysiloxane |
| 12/16/1980 | CA1091409A1 Dry phase inversion of exterior of cellulose acetate hollow fibre |
| 12/10/1980 | EP0020183A1 Poly-ion complex, process for its preparation and shaped articles prepared therefrom |
| 12/09/1980 | US4238590 Process for the production of silicic acid heteropolycondensates useful as membranes and adsorbents |
| 12/09/1980 | US4238571 Process for producing porous materials |
| 12/09/1980 | US4238204 Selective adsorption process |
| 12/02/1980 | US4237259 Thermoplastic resins |
| 12/02/1980 | US4236987 Electrode having membrane with ion selective properties |
| 11/25/1980 | US4235714 Block copolymer of nylon and a poly(dioxa-amide) |
| 11/18/1980 | US4234528 Asymmetrical ultrafiltration membrane based on cellulose hydrate |
| 11/18/1980 | US4234431 Membrane filtration type hollow fibers and method for the preparation of same |
| 11/11/1980 | US4233434 Polyamide from aromatic phosphorus containing diamine |
| 11/11/1980 | US4233427 Elastomeric organopolysiloxane block copolymers and non-elastomeric organosilicic copolymer blocks therefor |
| 11/04/1980 | US4231979 High surface area permeable material |
| 10/29/1980 | EP0018131A1 Crosslinked, carboxyalkylated and deacetylated derivative of chitin, process for preparation thereof, and use thereof as an adsorbent material |
| 10/28/1980 | US4230583 Pretreating the support with a water soluble polymer |
| 10/28/1980 | US4230463 Multicomponent membranes for gas separations |
| 10/21/1980 | US4229297 Method of separating oil from oil-containing liquid |
| 10/21/1980 | US4229291 For hemofiltration |
| 10/15/1980 | EP0016818A1 Method for compressing gaseous materials in a contained volume |
| 10/14/1980 | CA1087778A1 Polymeric compositions for use with membranes |
| 10/07/1980 | US4226673 Color removal from paper and pulp mill aqueous effluents |
| 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 |
| 09/09/1980 | US4221903 Semipermeable membranes of heterocyclic copolyamides |
| 09/09/1980 | US4221898 Polyphosphazene polymers containing ortho-difunctional phenylene substitutents |
| 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 |
| 09/02/1980 | CA1084663A1 Microporous film and method for preparing the same |
| 08/26/1980 | CA1084647A1 Nitrogen-containing aromatic polymers and process for their preparation |
| 08/12/1980 | US4217227 Semipermeable membranes of copolyamides |
| 08/12/1980 | CA1083529A1 Electrodialysis cell and method for producing cationic permeable membranes used therein |
| 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 |
| 08/06/1980 | EP0013834A2 Method of converting a hydrophilic, water-containing regenerated cellulose membrane to a membrane useful for separating organic liquids |
| 07/29/1980 | USRE30351 Aromatic polyimide, polyester and polyamide separation membranes |
| 07/29/1980 | US4214612 Tube of non woven material for reversed osmosis |
| 07/29/1980 | CA1082625A1 Pressure-driven affinity sorption membranes |
| 07/24/1980 | WO1980001464A1 Reverse osmosis membrane |
| 07/15/1980 | CA1081891A1 Materials for self-reinforcing hydrogels |
| 07/09/1980 | EP0013181A2 Chitin derivative, material comprising said derivative and process for the preparation thereof |
| 06/25/1980 | EP0012630A1 Process for producing a cellulose acetate-type permselective membrane, permselective membrane thus produced, and use of such membrane in artificial kidney |
| 06/25/1980 | EP0012557A1 Hydrophilic polymeric membranes, process for their preparation, their use as ultrafiltration membranes, and precursor membranes adapted to be converted thereto |
| 06/17/1980 | US4208508 Semipermeable membranes of polyaryl ether sulfones |
| 06/17/1980 | US4208455 Alkoxylaitng lewis group on polymer to solublize, applying to support, regenerating orginal polymer by hydrolysis |
| 06/10/1980 | US4207182 Polymeric compositions for membranes |
| 06/03/1980 | CA1078570A1 Process for shaping cellulose solutions |
| 05/27/1980 | CA1078117A1 Process for asymmetrical selectively permeable cellulose triacetate membranes |
| 05/20/1980 | US4203848 Actone bath |
| 05/20/1980 | CA1078085A1 Nonbiodegradable polymers |
| 04/30/1980 | EP0010425A1 Semipermeable composite membrane and the preparation thereof |
| 04/29/1980 | US4200726 Semipermeable membrane of phenoxy resin containing sulfuric acid groups or salts thereof |
| 04/29/1980 | CA1076427A1 Process for the preparation of supported anisotropic membranes, for reversed osmosis, based on synthetic polyamides |
| 04/22/1980 | US4199445 Process for separating aqueous mineral acid mixtures |
| 04/22/1980 | CA1076065A1 Method of making porous plastic diaphragms and the resulting novel diaphragms |
| 04/16/1980 | EP0009641A1 Polyphosphazene polymers containing ortho-difunctional phenylene substituents and method for preparing same |
| 04/08/1980 | US4197148 Stretching a thermoplastic resin |
| 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 |
| 03/19/1980 | EP0008895A1 Sulphonated polyaryletherketones and process for the manufacture thereof |
| 03/19/1980 | EP0008894A1 Sulphonated polyarylethersulphone copolymers and process for the manufacture thereof |
| 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 |
| 03/11/1980 | CA1073360A1 Non-antigenic collagen and articles of manufacture |
| 02/26/1980 | US4190707 Porous polyolefin film provides alkali resistance an: low heat shrinkage |
| 02/19/1980 | CA1071814A1 Multilayer membrane useful as synthetic skin |
| 02/12/1980 | US4188354 Method for the preparation of asymmetrical membranes |
| 02/06/1980 | EP0007713A1 Method of synthesising imogolite and product of the method |
| 02/05/1980 | US4187390 Porous products and process therefor |
| 01/29/1980 | US4186100 Inertial filter of the porous metal type |
| 01/29/1980 | US4186084 Hydrophilic fluoropolymers |
| 01/22/1980 | CA1070065A1 Asymmetric, semipermeable membranes of polybenz-1,3-oxazine diones-(2,4) |
| 01/01/1980 | US4181694 Method for producing hollow fibers of acrylonitrile polymers for ultrafilter |
| 01/01/1980 | US4181606 Dialysis of blood |
| 01/01/1980 | CA1068996A Semipermeable membranes and the method for the preparation thereof |
| 12/25/1979 | US4180308 Contact lens |
| 12/12/1979 | EP0006030A2 Lactam terpolymer membranes |
| 12/04/1979 | US4177222 Block copolymer of poly(dioxa-amide) and polyamide |
| 12/04/1979 | US4177150 Improved mechanical properties |
| 12/04/1979 | US4177056 Water-insoluble hydrophilic copolymers used as carriers for medicaments and pesticides |
| 12/04/1979 | CA1067416A1 Ultrafiltration apparatus and process for treatment of liquids |
| 11/28/1979 | EP0005536A2 Process for preparing polyamide membrane filter media and products thereof |
| 11/20/1979 | US4175153 Inorganic anisotropic hollow fibers |
| 11/14/1979 | EP0005193A1 Asymmetric cellulose hydrate-based ultrafiltration membranes and method for the fabrication thereof |
| 11/06/1979 | US4173613 Dimethyl sulfoxide, ammonia, formaldehyde |
| 10/31/1979 | EP0004943A1 Asymmetric cellulose triacetate-based ultrafiltration membranes and method of fabrication thereof |
| 10/16/1979 | US4171390 Isocyanate adduct in highy polar solvent reacted with hydrazine, carbodihydrazide, piperazine, or 1,4-diaminopiperazine |
| 10/03/1979 | EP0004287A2 Disulfimide derivatives containing polymerisable maleimide groups, process for their preparation and their use |
| 09/18/1979 | US4168352 Semipermeable membranes in lead-acid batteries |
| 09/18/1979 | CA1062413A1 Polycarbonate membranes and production thereof |
| 08/14/1979 | US4164437 Layers of regenerated cellulose |