| 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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| 12/14/1988 | EP0294737A2 Polysulfone hollow fiber membrane and process for making the same |
| 12/14/1988 | EP0294495A1 Allyl group-containing oligoethyleneoxypolyphosphazenes, process for their preparation, and secondary batteries containaing them. |
| 12/13/1988 | CA1246308A1 Process for producing aromatic imide polymer hollow filaments |
| 12/07/1988 | EP0293736A2 Ammonia separation using ion exchange polymeric membranes and sorbents |
| 12/06/1988 | US4789386 Metal ionomer membranes for gas separation |
| 11/30/1988 | CN88102874A Improved composite separation membranes and preparation and use thereof |
| 11/30/1988 | CN88102873A Composite membranes for enhanced fluid separation |
| 11/29/1988 | US4788226 Polyamide membranes |
| 11/29/1988 | US4787977 Regenerated cellulose with amino containing polymeric coating |
| 11/29/1988 | US4787976 Casting solution of prepolymer, nonreactive polymer, and coagulant-nonfouling by proteins |
| 11/23/1988 | EP0291679A1 Method and production of an asymmetric membrane |
| 11/22/1988 | US4786657 Polyurethanes and polyurethane/polyureas crosslinked using 2-glyceryl acrylate or 2-glyceryl methacrylate |
| 11/22/1988 | US4786415 Separation agent comprising aliphatic ester of polysaccharide |
| 11/17/1988 | WO1988008738A1 Preparation of porous aramide membranes |
| 11/15/1988 | US4784900 Method for sizing polytretrafluoroethylene fabrics |
| 11/15/1988 | US4784882 Fusion of multilayer fluoropolymers having ion exchange site |
| 11/15/1988 | US4784880 Barriers, multilayer, fibers |
| 11/15/1988 | US4784736 Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers |
| 11/09/1988 | EP0289869A2 Low equivalent weight sulfonic fluoropolymers |
| 11/08/1988 | US4783346 Interfaces, polyamides |
| 11/08/1988 | US4783202 Polyphosphazene membrane separation of polar from non-polar fluids |
| 11/08/1988 | US4783201 Gas dehydration membrane apparatus |
| 11/02/1988 | EP0288874A2 Microporous membranes from polypropylene |
| 11/01/1988 | US4781873 Reversed phase membranes |
| 11/01/1988 | US4781837 Method of performing osmetic distillation |
| 11/01/1988 | US4781734 Non-porous hydrogen diffusion membrane and utilization thereof |
| 11/01/1988 | US4781733 Semipermeable thin-film membranes comprising siloxane, alkoxysilyl and aryloxysilyl oligomers and copolymers |
| 11/01/1988 | CA1243804A1 Process for preventing the gelation of concentrated aqueous photoactivator solutions |
| 10/27/1988 | DE3708946C1 Process for producing dust-free membrane filters from conventional cellulose derivatives |
| 10/26/1988 | EP0288380A1 Semi-permeable organo-mineral membrane, and processes for its preparation |
| 10/25/1988 | US4780369 Porous glass membrane tubes |
| 10/25/1988 | US4780211 Method of dewatering using PTFE membrane |
| 10/18/1988 | US4778868 Silane-substituted acetylenic homopolymers; workability |
| 10/18/1988 | US4778777 Chemically durable porous glass and process for the manufacture thereof |
| 10/18/1988 | US4778601 Microporous membranes of ultrahigh molecular weight polyethylene |
| 10/18/1988 | US4778596 Crosslinked hydrophilic polymer; for reverse osmosis and ultrafiltration |
| 10/18/1988 | CA1243152A1 Diffusion barrier with microporous matrix for separation by counter diffusion |
| 10/12/1988 | EP0286091A2 Composite membranes for enhanced fluid separation |
| 10/11/1988 | US4776959 Hydrophobic polymer and coating on at least one surface |
| 10/04/1988 | US4775703 Adding ammonium salt to polymer casting solution |
| 09/27/1988 | US4774132 Graft polymers with high surface tension for use as filters |
| 09/27/1988 | US4774038 Polyamide membranes |
| 09/20/1988 | US4772394 Chlorine-resistant semipermeable membranes |
| 09/20/1988 | US4772393 Cellulose dialysis membrane with improved biocompatibility |
| 09/20/1988 | US4772392 Extrusion from mixture of solvent and nonsolvent |
| 09/20/1988 | US4772390 Filter membrane of hollow microporous olefin fibers removes traces of low molecular weight organics |
| 09/13/1988 | US4770908 Process for preparing porous ceramic membrane |
| 09/13/1988 | US4770852 Hollow fiber membrane for an artificial lung |
| 09/13/1988 | US4770777 Microporous asymmetric polyamide membranes |
| 09/07/1988 | WO1988006477A1 Inorganic filtration membrane modified for protein separation |
| 09/07/1988 | WO1988006476A1 Methods of making biocompatible nucleophilic material |
| 09/06/1988 | US4769273 Bicomponent moisture barrier poly(etherimide) ester films |
| 09/06/1988 | US4769148 Novel polyamide reverse osmosis membranes |
| 08/30/1988 | US4767535 Membranes of diisocyanate addition polymers for hemodialysis and/or hemofiltration |
| 08/30/1988 | CA1241480A1 Aqueous emulsions containing hydrophilic silicone- organic copolymers |
| 08/30/1988 | CA1241478A1 Hydrophilic silicone-organic copolymer elastomers |
| 08/30/1988 | CA1241241A1 Method of making membranes for gas separation and the composite membranes |
| 08/25/1988 | WO1988006200A1 Protective surface treatment |
| 08/24/1988 | EP0279331A2 Alpha-fluoroacrylic acid salt polymer and its use |
| 08/23/1988 | US4766161 Interfacial layer of polymer matrix containing a dispersion of a cationic exchange resin having quaternized and nonquaternized amine groups |
| 08/23/1988 | US4765898 Semipermeable membranes based on polymers containing sulphonate group |
| 08/23/1988 | US4765808 Separation of carbon monoxide from nitrogen with Ba exchanged zeolite X |
| 08/11/1988 | WO1988005769A1 Process for the recovery of alcohols using a perfluorinated ionomer membrane |
| 08/11/1988 | WO1988005768A1 Process for the recovery of alcohols using an organic acid-modified polymer membrane |
| 08/11/1988 | WO1988005688A1 Hydrophilic article and method of producing same |
| 08/11/1988 | WO1988005687A1 Microporous asymmetric polyfluorocarbon membranes |
| 08/11/1988 | WO1988005686A1 Microporous asymmetric polyamide membranes |
| 08/10/1988 | EP0277834A2 Stable membranes from sulfonated polyarylethers |
| 08/10/1988 | EP0037836B2 Polyvinylidene fluoride resin hollow filament microfilter and process for producing same |
| 08/10/1988 | CN88100093A Alkali resistant hyperfiltration membrane |
| 08/09/1988 | US4762899 Amphiphilic segment polyurethanes |
| 08/02/1988 | US4761234 Crosslinked polyamides for semipermeable membranes |
| 08/02/1988 | US4761233 Novel membranes and process for making them |
| 07/28/1988 | WO1988005475A1 Porous polypropylene membrane and process for its production |
| 07/28/1988 | WO1988005330A1 Composite membrane |
| 07/26/1988 | US4759780 Apparatus for concentrating a gas, especially oxygen, from a gaseous mixture using an ultrathin solid membrane |
| 07/26/1988 | US4759776 Used for separating feed gas mixture containing atleast two component having different permeability by contacting with unsaturated organogermyl polymer membrane |
| 07/26/1988 | CA1239513A1 Removing n-n bis(2 hydroxyethyl) tallow amine to obtain skinless polypropylene membrane |
| 07/19/1988 | US4758348 Copolymer, separating membrane made thereof and method for separating charge transfer interactive substance from a liquid mixture containing the same |
| 07/19/1988 | US4758343 Interfacially synthesized reverse osmosis membrane |
| 07/19/1988 | US4758342 Hyperfiltration membranes having separation layers of monomolecular films of surfactants |
| 07/19/1988 | US4758251 Thin film of polyvinyl alkyl ether composite membrane on porous support |
| 07/19/1988 | US4758250 Ammonia separation using ion exchange polymeric membranes and sorbents |
| 07/14/1988 | WO1988005064A1 Allyl group-containing oligoethyleneoxypolyphosphazenes, process for their preparation, and their use |
| 07/14/1988 | WO1988005062A1 Hydrophilic, porous polyvinylidene fluoride membrane and process for its preparation |
| 07/13/1988 | EP0274387A2 Alkali resistant hyperfiltration membrane |
| 07/12/1988 | US4756821 Method for the liquid phase hydrotreatment of heavy hydrocarbons in the presence of a dispersed catalyst |
| 07/12/1988 | CA1239103A1 Collagen gel, process for making it and membrane articles made from said gel |
| 07/12/1988 | CA1239096A1 Assembly device for a tubular filter element and its housing |
| 07/12/1988 | CA1239011A1 Method of manufacturing permeable mineral membranes |
| 07/06/1988 | EP0273069A1 Glucomannan/polyhydric alcohol composition and film prepared therefrom |
| 07/05/1988 | US4755561 Poly(disubstituted acetylene)/polyorganosiloxane graft copolymer and membrane for gas separation |
| 07/05/1988 | US4755540 Polymer membrane |
| 07/05/1988 | US4755299 Delivering liquid mixture to surface of composite membrane of nonporous crosslinked polyvinyl alcohol with porous backing, applying vacuum to or inert gas over other surface to separate |
| 07/05/1988 | US4755193 Polymer and a membrane having an improved gas-permeability and selectivity |
| 07/05/1988 | CA1238823A1 Composite reverse osmosis membrane having a layer of interfacially polymerized poly-meta-phenylene cyclohexane-1,3,5-tricarboxamide |
| 06/30/1988 | WO1988004677A1 Polymer with betaine structure, solution diffusion membrane, process for their manufacture and use |
| 06/30/1988 | WO1988004569A1 Process for separating liquid mixture |
| 06/29/1988 | EP0272842A2 Filtration membranes |
| 06/29/1988 | EP0272841A2 Filtration media |