| 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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| 04/19/1990 | CA2000018A1 Spectacular break-through in gas, isotope and liquid separations and a revolutionary advance in and a master key for membrane technology and science |
| 04/18/1990 | EP0364173A1 Microfilter device |
| 04/17/1990 | US4917847 Method of making a reverse osmosis element |
| 04/17/1990 | US4917800 Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers |
| 04/11/1990 | EP0362917A1 Membrane assembly |
| 04/11/1990 | EP0362898A2 Apparatus and method for separating gases |
| 04/11/1990 | EP0362588A1 Process for preparing isotropic microporous polysulfone membranes |
| 04/11/1990 | CN1041115A Chlorine resistant semipermerable membranes |
| 04/10/1990 | US4915886 Method of manufacturing nylon microporous hollow fiber membrane |
| 04/10/1990 | US4915834 Separation layer of polyvinyl alcohol or cellulose acetate on porous backing |
| 04/10/1990 | EP0299043A4 Microporous asymmetric polyamide membranes. |
| 04/10/1990 | CA2000055A1 Microfilter device |
| 04/04/1990 | EP0361628A1 Method of making membranes for gas separation and the composite membranes |
| 04/04/1990 | EP0361092A2 Interfacially sythesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
| 04/04/1990 | EP0361085A1 Integral asymmetric polyether sulfone membrane, process for its manufacture and its use in ultrafiltration and microfiltration |
| 04/03/1990 | US4913864 Mixing, kneading, extrusion mixture of polymer powder and liquid |
| 04/03/1990 | US4913817 Reinforced ion exchange membrane and a process for producing the same |
| 04/03/1990 | US4913816 Chlorine tolerant composite semipermeable membrane |
| 03/28/1990 | EP0360009A2 Method of removing dissolved gas from liquid |
| 03/28/1990 | EP0359834A1 Manufacture and use of composite membranes |
| 03/22/1990 | WO1990002602A1 Chlorine-resistant semipermeable membranes |
| 03/22/1990 | DE3831970A1 Membrane system for controllable separation of substances by changeable permeation |
| 03/21/1990 | EP0359636A2 Hollow cellulose fibers, method for making, and fluid processing apparatus using same |
| 03/20/1990 | US4910344 Using blend of polyvinyl alcohol and polyacrylic acid nonporous separation membrane |
| 03/20/1990 | US4910083 Ultrathin polyarylate polymer films and their preparation |
| 03/20/1990 | US4910082 Self-supporting, random orientated molecules |
| 03/20/1990 | US4909989 Porous hydrophobic membrane and silica |
| 03/20/1990 | US4909971 Blend of thermoplastic orientable polymer and particle filler |
| 03/20/1990 | US4909938 Reversed phase membranes |
| 03/20/1990 | US4909810 Vapor permselective membrane |
| 03/20/1990 | CA1266827A1 Controlled porosity osmotic pump |
| 03/14/1990 | EP0357923A2 Composite semipermeable membranes and method of making same |
| 03/14/1990 | EP0357781A1 Process for producing composite semipermeable membrane |
| 03/14/1990 | CN1040328A Composite membranes and their manufacture and use |
| 03/13/1990 | US4908266 Ultrathin cellulose ester polymer films and their preparation |
| 03/13/1990 | US4908251 Laminated sheet of thermoplastic resin, hot melt polymer porous sheet, porous substrate |
| 03/13/1990 | US4908235 Contacting polymer-solvent solution with one surface of microporous membrane second layer, volatilizing solvent through pores, not allowing solution to enter pores, forming selectively acting nonporous layer on second layer |
| 03/06/1990 | US4907038 Langmuir Blodgett ultrathin membrane of polyfumarate |
| 03/06/1990 | US4906376 Polymer membrane for proton driven ion transport |
| 03/06/1990 | US4906374 Filtration media with low protein adsorbability |
| 03/06/1990 | US4906371 Filter element having microporous membrane |
| 02/28/1990 | EP0355847A2 Method of forming planar membrane |
| 02/28/1990 | EP0355400A2 Filter medium for cake forming filtering operations |
| 02/27/1990 | US4904426 Process for the production of fibers from poly(etheretherketone)-type polymers |
| 02/27/1990 | US4904394 Method for selective filtering of a fluid using porous piezoelectric material |
| 02/27/1990 | US4904385 Lofted fiber-reinforced composite sheet; compressing a heat fusible polymer and a binder |
| 02/22/1990 | WO1990000343A3 Multifunctional thrombo-resistant coatings and methods of manufacture |
| 02/21/1990 | EP0354959A1 Membrane type artificial lung and production thereof |
| 02/21/1990 | EP0354937A1 Composite membranes of poly(methyl methacrylate) blends |
| 02/21/1990 | EP0354916A1 Neutralization of heparin. |
| 02/20/1990 | US4902424 Ultrafiltration thin film membranes |
| 02/20/1990 | US4902422 Defect-free ultrahigh flux asymmetric membranes |
| 02/14/1990 | EP0354514A2 Fluoro-oxidized polymeric membranes for gas separation and process for preparing them |
| 02/13/1990 | US4900626 Hollow composite fibers selectively permeable to water vapor |
| 02/13/1990 | US4900621 Ultrathin blended cellulose nitrate polymer films and their preparation |
| 02/13/1990 | US4900502 Hollow fiber annealing |
| 02/13/1990 | US4900449 Microporous, hydrophobic polymer blended with polymer additive |
| 02/13/1990 | US4900444 A porous membrane for blood components and method for manufacturing thereof |
| 02/13/1990 | US4900443 Casting dope of resin, pore modifier, precipitant and solvent; phase inversion |
| 01/31/1990 | EP0353148A2 Porous hollow fiber membrane of polypropylene and method for production thereof |
| 01/31/1990 | EP0352765A2 Process for preparing membranes from tetrahalobisphenol polycarbonates |
| 01/31/1990 | CN1006603B Compression moulding technique of filter film with microgaps |
| 01/30/1990 | US4897091 Membrane process for separating gases from gas-liquid charge streams |
| 01/30/1990 | CA1264904A1 Flat permeable membrane and method for manufacture thereof |
| 01/30/1990 | CA1264903A1 Membrane made by extraction from solidified polymer- seed forming agent/filler/membrane |
| 01/25/1990 | WO1990000343A2 Multifunctional thrombo-resistant coatings and methods of manufacture |
| 01/24/1990 | EP0351773A2 Hollow fiber membrane |
| 01/24/1990 | EP0351584A1 Porous polytetrafluoroethylene hollow yarn and preparation thereof |
| 01/23/1990 | US4895685 Reaction of melamine compound and sulfonated polysaccharide, removing water |
| 01/23/1990 | US4895661 Electroless copper deposition |
| 01/23/1990 | US4895660 Water-soluble aromatic polyamides and polyureas |
| 01/16/1990 | US4894157 Process for producing supported celluosic membranes and products |
| 01/10/1990 | EP0350279A2 Treatment of water by nanofiltration |
| 01/10/1990 | EP0350252A1 The separation of elements defining a fluid flow path |
| 01/10/1990 | EP0349914A2 Process for making tubular non-woven fabric articles |
| 01/10/1990 | CN1038592A Tubesheet for semipermeable membrane devices |
| 01/08/1990 | EP0300038A4 Microporous asymmetric polyfluorocarbon membranes. |
| 01/03/1990 | EP0348459A1 Improved composite membranes, their manufacture and their use |
| 01/02/1990 | US4891135 Solvent resistance |
| 12/26/1989 | US4889636 High flux RO/UF membranes |
| 12/26/1989 | US4889626 Purification |
| 12/26/1989 | US4889541 Separation of gases |
| 12/19/1989 | US4888116 Method of improving membrane properties via reaction of diazonium compounds or precursors |
| 12/19/1989 | CA1263903A1 Hollow fiber for dialysis and method for manufacture thereof |
| 12/14/1989 | WO1989012119A1 Methods, compositions, and systems for ligand extraction |
| 12/13/1989 | EP0345864A1 Process for making a membrane |
| 12/13/1989 | EP0345780A2 Hollow fiber type blood purification apparatus |
| 12/12/1989 | US4886836 Activated medium with low non-specific protein adsorption |
| 12/12/1989 | US4886740 Enzyme-electrode sensor with organosilane treated membrane |
| 12/12/1989 | US4886631 Cellulose ester hollow fiber membrane for plasma separation |
| 12/12/1989 | US4886604 Structure with membranes having continuous pores |
| 12/06/1989 | EP0345151A2 Method for production of hollow fiber membrane |
| 12/06/1989 | EP0344799A2 Selectively permeable film and process for producing the same |
| 12/06/1989 | EP0344312A1 Hydrophilic, porous polyvinylidene fluoride membrane and process for its preparation |
| 12/05/1989 | US4885091 Interfacial polymerization of chloro-m-phenylenediamine with aromatic polycarboxylic acid chloride on support; curing |
| 12/05/1989 | US4885086 Hydrophilic microporous membrane and process for preparing same |
| 12/05/1989 | CA1263572A1 Sulfonated polysulfone composite semipermeable membranes and process for producing the same |
| 11/30/1989 | WO1989011318A1 Process for producing silicon caoutchouc tube membranes with mechanical wall reinforcement, development of tube membranes with mechanical wall reinforcement and their use |
| 11/30/1989 | EP0243404A4 Method for confining a catalyst in multiphase membrane reactor systems. |
| 11/30/1989 | DE3817560A1 Verfahren zur herstellung von rohrmembranen aus silikonkautschuk mit einer mechanischen wandverstaerkung, ausbildung von rohrmembranen mit einer mechanischen wandverstaerkung und anwendung dieser rohrmembranen Process for the manufacture of tubular membranes made of silicone rubber with a mechanical wandverstaerkung, training of tubular membranes with a mechanical wandverstaerkung and application of these tubular membranes |