| Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858) |
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| 03/20/1990 | US4909971 Blend of thermoplastic orientable polymer and particle filler |
| 03/20/1990 | US4909943 Rejection enhancing coatings for reverse osmosis membranes |
| 03/20/1990 | US4909938 Reversed phase membranes |
| 03/14/1990 | EP0357923A2 Composite semipermeable membranes and method of making same |
| 03/14/1990 | EP0357864A1 Process for preparing reverse-osmosis membranes |
| 03/13/1990 | US4908236 Wetting surfaces of pores in porous polytetrafluoroethylene membrane substrate, contacting with solution of monomer of second polymer, crosslinking agent, and polymerization initiator, polymerizing to crosslink polymer on substrate |
| 03/08/1990 | WO1990001980A1 Making and using polyamide membranes |
| 03/07/1990 | EP0357021A2 Membrane manufacturing process |
| 03/07/1990 | CN1040154A Catalytic high molecular gas separation membrance |
| 03/06/1990 | US4906379 Hydrophilic article and method of producing same |
| 03/06/1990 | US4906377 Fluorocarbon membranes and process for making fluorocarbon membranes |
| 03/06/1990 | US4906374 Filtration media with low protein adsorbability |
| 02/28/1990 | EP0355847A2 Method of forming planar membrane |
| 02/28/1990 | EP0355214A1 Process for producing microporous ultra-high molecular weight polyolefin membrane |
| 02/28/1990 | EP0355188A1 Process of making and using polyamide membranes useful for water softening |
| 02/27/1990 | US4904426 Process for the production of fibers from poly(etheretherketone)-type polymers |
| 02/27/1990 | CA1266251A1 Formation of aluminium oxide film by anodization, voltage reduction and separation |
| 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 |
| 02/20/1990 | US4902456 Fluorocarbon membranes and process for making fluorocarbon membranes |
| 02/20/1990 | US4902424 Ultrafiltration thin film membranes |
| 02/20/1990 | US4902423 Filter aids, substrates for coatings, porosity |
| 02/20/1990 | US4902422 Defect-free ultrahigh flux asymmetric membranes |
| 02/20/1990 | US4902308 Composite membrane |
| 02/14/1990 | EP0354514A2 Fluoro-oxidized polymeric membranes for gas separation and process for preparing them |
| 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 |
| 02/13/1990 | US4900334 Flushing with water, heat treating to dry |
| 02/08/1990 | WO1990000922A1 Rotary filtration device with hyperphilic membrane |
| 02/06/1990 | US4898698 Method of casting a porous membrane of polymeric material |
| 02/06/1990 | US4898674 Solvent dewaxing process |
| 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 | 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 |
| 01/25/1990 | WO1989012490A3 Composite membrane |
| 01/24/1990 | EP0352199A2 Hydrophilic material and method of manufacturing the same |
| 01/16/1990 | US4894165 Rejection enhancing coatings for reverse osmosis membranes |
| 01/16/1990 | US4894157 Process for producing supported celluosic membranes and products |
| 01/08/1990 | EP0300038A4 Microporous asymmetric polyfluorocarbon membranes. |
| 01/03/1990 | EP0348425A1 Protective surface treatment and relative product. |
| 12/28/1989 | WO1989012490A2 Composite membrane |
| 12/27/1989 | EP0347755A2 Charge-modified hydrophobic membrane materials and method for making the same |
| 12/26/1989 | US4889632 Crosslinked globules of addition polymers connected by covalent bonds to form voids; for biopolmers, such as proteins, enzymes, polypeptides |
| 12/26/1989 | US4889631 Anodic aluminium oxide membranes |
| 12/20/1989 | EP0346773A2 Selectively ion-adsorptive, porous membrane |
| 12/20/1989 | CN1038156A Process for drying water-wet polycarbonate membranes |
| 12/19/1989 | US4888116 Method of improving membrane properties via reaction of diazonium compounds or precursors |
| 12/19/1989 | US4888115 Cross-flow filtration |
| 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 | 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 |
| 12/06/1989 | EP0344188A1 Process for the recovery of alcohols using an organic acid-modified polymer membrane. |
| 12/05/1989 | US4885092 Process for the manufacture of asymmetric, porous membranes and product thereof |
| 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 | WO1989011330A1 A process for drying water-wet polycarbonate membranes |
| 11/29/1989 | EP0343387A1 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix |
| 11/29/1989 | EP0343359A1 Hollow fiber membrane fluid processor |
| 11/29/1989 | EP0343247A1 Porous polytetrafluoroethylene membrane, separating apparatus using same, and process for their production |
| 11/28/1989 | US4883593 Filling pores of cellulose semipermeable membrane with hexane, spraying with water |
| 11/23/1989 | EP0342239A1 Porous membrane and process for its production |
| 11/23/1989 | DE3816078A1 Process for producing heat-resistant and chemical-resistant ultrafinely pored microsieves (hole size d > 10 nano-m) from the polyimide film "Kapton" (tradename of Du Pont) |
| 11/21/1989 | US4882223 Hollow fibers production method thereof and their applications particularly in the field of membrane-type separations |
| 11/21/1989 | US4882106 Modification of interior bores of regenerated cellulose hollow fibers; dialysis membranes, preventing complement activation, removing microglobulins |
| 11/21/1989 | US4882060 Dialysis membranes with improved compatibility |
| 11/21/1989 | US4882057 Composition and process for separating fluid mixtures |
| 11/21/1989 | US4881954 Porous support layer, separation layer composite |
| 11/16/1989 | DE3814832A1 Method for the production of filter membranes |
| 11/15/1989 | EP0342026A2 Microporous membranes having increased pore densities and process for making the same |
| 11/15/1989 | EP0341696A2 A process for drying water-wet polycarbonate membranes |
| 11/15/1989 | EP0341413A2 An adsorber module and adsorber apparatus for whole blood treatment |
| 11/15/1989 | EP0341309A1 Porous polypropylene membrane and process for its production |
| 11/15/1989 | CN1037087A Blood cleaning hollow fiber membrane, method for cleaning blood and apparatus therefor |
| 11/08/1989 | EP0341151A2 Hydrophilic porous membrane, method of manufacturing the same and liquid filter using the same |
| 11/08/1989 | EP0340732A2 Fluorocarbon membranes and process for making fluorocarbon membranes |
| 11/08/1989 | EP0340262A1 Semi-permeable membranes with an internal discriminating region |
| 11/08/1989 | CN1036909A Reactive posttreatment for gas separation membranes |
| 11/08/1989 | CN1036908A Reactive posttreatment for gas separation membranes |
| 11/07/1989 | US4879044 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non aromatics |
| 11/07/1989 | US4879036 Asymmetrical membrane of polyester-amide and process for preparing it |
| 11/02/1989 | EP0339502A2 Process for modifying cellulosic membrances for the improvement of their biocompatibility, and apparatus for carrying out the process |
| 10/31/1989 | US4877529 Separation of organic liquids |
| 10/31/1989 | US4877528 Siloxane-grafted membranes |
| 10/31/1989 | US4877421 Heat treatment to remove impurities |
| 10/31/1989 | CA1262536A1 Enhanced bulk porosity of polymer structures via plasma technology |
| 10/25/1989 | EP0338074A1 Treatment of permeable membranes |
| 10/25/1989 | EP0338004A1 Polymer with betaine structure, solution diffusion membrane, process for their manufacture and use. |
| 10/24/1989 | US4876289 Hydrophilized porous membrane and production process thereof |
| 10/18/1989 | EP0337499A2 Method for regenerating used gas-permeable films |
| 10/18/1989 | EP0337000A2 Reactive posttreatment for gas separation membranes |
| 10/18/1989 | EP0336999A2 Reactive posttreatment for gas separation membranes |