| Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858) |
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| 04/25/1989 | US4824443 Highly polar solvent |
| 04/19/1989 | EP0312379A2 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics |
| 04/19/1989 | EP0312377A2 Method of preparing thin film composite membranes by suspension deposition, and use of such membranes |
| 04/18/1989 | US4822678 Fibers and hollow fibrous tubes |
| 04/11/1989 | US4820419 Membranes |
| 04/04/1989 | US4818596 Waterproof article and method for making a waterproof article |
| 04/04/1989 | US4818387 Dihydroxydiphenyl sulfone/p,p*-/ and dihydroxybenzenes; heat, acid, alkali, and halogen resistance |
| 04/04/1989 | CA1252064A1 Acid extraction process, namely of boric acid, from a lightly ionised solution |
| 03/29/1989 | EP0309136A2 Oriented microporous film |
| 03/23/1989 | WO1989002303A1 Hydrophilic polypropylene porous membrane, process for its production, and apparatus for separating blood plasma |
| 03/23/1989 | WO1989002282A1 Medical instrument and production thereof |
| 03/22/1989 | EP0308232A2 Filter and test device containing same, with flow-delaying polymer |
| 03/22/1989 | EP0308206A2 Polyaldehyde activated membranes, their production and use |
| 03/22/1989 | EP0308002A1 Method and membrane for the removal of water vapour from a gas/vapour mixture by means of vapour permeation |
| 03/21/1989 | US4814083 Altering pore size distributions |
| 03/21/1989 | US4814082 On or crosslinked to support |
| 03/14/1989 | US4812270 Novel water softening membranes |
| 03/14/1989 | US4812238 Membranes prepared via reaction of diazonium compounds or precursors |
| 03/14/1989 | US4812236 Foil with micropores on two layer support which has open macropores |
| 03/08/1989 | EP0305929A2 Membranes with bound oligonucleotides and peptides |
| 03/08/1989 | EP0305787A1 A process for manufacturing permselective asymmetric membranes suitable for haemodialysis and the so prepared membranes |
| 03/08/1989 | CN1031482A Rejection enhancing coatings for reverse osmosis membranes |
| 03/02/1989 | DE3819583A1 Process and composition for rendering germproof air filter materials hydrophobic |
| 02/28/1989 | US4808651 Solutions of fluoropolymers, and their use |
| 02/28/1989 | US4808313 Alginic acid crosslinked with metal cation |
| 02/22/1989 | EP0303684A1 Methods of making biocompatible nucleophilic material. |
| 02/22/1989 | CN1031191A Permeable membranes for enhanced gas separation |
| 02/21/1989 | US4806291 Using ammonium compounds which are nonsolvents for the polymeric casting solutions |
| 02/21/1989 | US4806189 Composite fluid separation membranes |
| 02/21/1989 | US4805343 Osmotic fiber systems |
| 02/21/1989 | CA1250108A1 Method of manufacturing a cellulose acetate membrane and the membrane so produced |
| 02/15/1989 | EP0302928A1 Inorganic filtration membrane modified for protein separation. |
| 02/09/1989 | WO1989000879A1 Porous polymetrafluoroethylene membrane, separating apparatus using same, and process for their production |
| 02/09/1989 | WO1989000878A1 Hydrophilic porous membrane, process for its production and plasma-separating apparatus |
| 02/09/1989 | DE3724803A1 Pack in the form of a repository capsule for receiving a disposable-filter holder and process for sterilising the individually packaged disposable-filter holder |
| 02/08/1989 | EP0302650A1 Hydrophilic microporous membrane and process for preparing same |
| 02/07/1989 | US4802987 Selective permeation of aromatic hydrocarbons through polyethylene glycol impregnated regenerated cellulose or cellulose acetate membranes |
| 02/07/1989 | US4802942 Method of making multilayer composite hollow fibers |
| 02/07/1989 | CA1249781A1 Methods of concentrating ligands and active membranes used therefor |
| 02/01/1989 | EP0301597A2 Permeable membranes for enhanced gas separation |
| 01/31/1989 | CA1249406A1 Process for the manufacture of asymmetric, porous membranes and product thereof |
| 01/26/1989 | WO1989000593A1 Porous membranes of interpenetrating polymer networks |
| 01/26/1989 | WO1989000592A1 Polytetrafluoroethylene coating of polymer surfaces |
| 01/25/1989 | EP0300428A2 Rejection enhancing coatings for reverse osmosis membranes |
| 01/25/1989 | EP0300038A1 Microporous asymmetric polyfluorocarbon membranes. |
| 01/24/1989 | US4800016 Heparin combines with immobilized protamine |
| 01/24/1989 | CA1249110A1 Charge modified microporous hollow tubes |
| 01/18/1989 | EP0299381A2 Membrane-type artificial lung and method of using it |
| 01/18/1989 | EP0299063A1 Hydrophilic article and method of producing same. |
| 01/18/1989 | EP0299043A1 Microporous asymmetric polyamide membranes. |
| 01/17/1989 | US4798847 Process for the preparation of hydrophilic membranes and such membranes |
| 01/17/1989 | US4798674 Alcohol, oxygenate, membranes, concentration |
| 01/10/1989 | US4797211 Cross flow microfilter |
| 01/10/1989 | US4797187 Coacervation of cations |
| 12/29/1988 | WO1988010141A1 A process for production of a semi-permeable membrane, a membranemanufactured by said process and the use of such a membrane for gas or liquid separation |
| 12/29/1988 | WO1988010140A1 A method for improving the separation properties of semi-permeable membranes and membranes accordingly improved |
| 12/28/1988 | EP0296519A2 Method of treating membranes with ultraviolet radiation |
| 12/27/1988 | US4794002 Modified polymeric surfaces and process for preparing same |
| 12/22/1988 | DE3719118A1 Semipermeable membrane having microporous througholes and process and apparatuses for the production thereof |
| 12/07/1988 | EP0294186A2 Activated medium |
| 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 | US4787977 Regenerated cellulose with amino containing polymeric coating |
| 11/29/1988 | US4787976 Casting solution of prepolymer, nonreactive polymer, and coagulant-nonfouling by proteins |
| 11/29/1988 | CA1245567A1 Hollow-fiber filtering module and water purification device utilizing it |
| 11/23/1988 | EP0292325A2 Membrane system |
| 11/23/1988 | CN88101333A Compression moulding technique of filter film with microgaps |
| 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 |
| 11/08/1988 | 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 |
| 10/26/1988 | EP0288380A1 Semi-permeable organo-mineral membrane, and processes for its preparation |
| 10/25/1988 | US4780211 Method of dewatering using PTFE membrane |
| 10/25/1988 | US4780205 Multilayer-skin overcoating, porous interiors |
| 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 |
| 10/12/1988 | EP0286090A1 Improved composite separation membranes and the preparation and use thereof |
| 10/11/1988 | US4776959 Hydrophobic polymer and coating on at least one surface |
| 10/11/1988 | US4776936 Using polar activator, then microwave radiation |
| 10/04/1988 | US4775703 Adding ammonium salt to polymer casting solution |
| 10/04/1988 | US4775474 Membranes containing microporous structure |
| 09/27/1988 | US4774132 Graft polymers with high surface tension for use as filters |
| 09/27/1988 | US4774039 Pore size |
| 09/27/1988 | US4774038 Polyamide membranes |
| 09/22/1988 | WO1988006898A1 Membrane type artificial lung and production thereof |
| 09/20/1988 | US4772440 Method for production of porous membrane |
| 09/20/1988 | US4772392 Extrusion from mixture of solvent and nonsolvent |
| 09/13/1988 | US4770852 Hollow fiber membrane for an artificial lung |
| 09/13/1988 | US4770785 Dielectric bombarded with uranium, xenon or argon |
| 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 |
| 09/07/1988 | EP0280840A1 Methods of preparing biologically active membranes and uses thereof |