| Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060) |
|---|
| 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 | WO1989012490A3 Composite membrane |
| 01/24/1990 | EP0352199A2 Hydrophilic material and method of manufacturing the same |
| 01/24/1990 | EP0351773A2 Hollow fiber membrane |
| 01/24/1990 | EP0351584A1 Porous polytetrafluoroethylene hollow yarn and preparation thereof |
| 01/23/1990 | US4895689 Process for preparing heat treated solution cast polyketone-based barrier polymer materials |
| 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 |
| 01/23/1990 | CA1264514A1 Method of manufacturing a reverse osmosis membrane of cellulosic material |
| 01/17/1990 | EP0350704A2 3,3'-Dihydroxydiphenylether-homopolycarbonate sheets |
| 01/17/1990 | CN1038776A Composite membranes |
| 01/16/1990 | US4894159 Method of manufacturing a reverse osmosis membrane and the membrane so produced |
| 01/16/1990 | US4894157 Process for producing supported celluosic membranes and products |
| 01/11/1990 | WO1990000082A1 Gas separation membranes derived from polycarbonates, polyesters, and polyestercarbonates containing tetrafluorobisphenol f |
| 01/10/1990 | EP0350279A2 Treatment of water by nanofiltration |
| 01/10/1990 | CN1038662A Organic polymeric material and ion-exchange membrane produced therefrom |
| 01/09/1990 | US4892697 Process for preparing melt processed polyketone-based barrier polymer materials |
| 01/09/1990 | US4892661 Novel membrane method |
| 01/09/1990 | US4892659 Separation agent comprising aliphatic ester of polysaccharide |
| 01/08/1990 | EP0300038A4 Microporous asymmetric polyfluorocarbon membranes. |
| 01/03/1990 | EP0349010A1 Polyimide copolymers |
| 01/03/1990 | EP0349008A1 Use of polyimides as separation membranes. |
| 01/03/1990 | EP0348459A1 Improved composite membranes, their manufacture and their use |
| 01/03/1990 | EP0348425A1 Protective surface treatment and relative product. |
| 01/02/1990 | US4891135 Solvent resistance |
| 12/28/1989 | WO1989012490A2 Composite membrane |
| 12/27/1989 | EP0348041A1 Composite membranes |
| 12/27/1989 | EP0347755A2 Charge-modified hydrophobic membrane materials and method for making the same |
| 12/26/1989 | US4889902 Soluble or crosslinked graft copolymers of lignin acrylamide and 2-hydroxyethylmethacrylate |
| 12/26/1989 | US4889636 High flux RO/UF membranes |
| 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 |
| 12/26/1989 | US4889626 Purification |
| 12/20/1989 | EP0346426A1 Process for separating the dissolved and undissolved constituents of milk |
| 12/20/1989 | CN1038156A Process for drying water-wet polycarbonate membranes |
| 12/20/1989 | CN1038030A Filter for separation of solid from hot gas or liquid |
| 12/19/1989 | US4888115 Cross-flow filtration |
| 12/19/1989 | US4888114 Filling pores with sintered metal oxide powder |
| 12/19/1989 | US4888033 Thin layer of aluminum hydroxide solution |
| 12/19/1989 | CA1263903A1 Hollow fiber for dialysis and method for manufacture thereof |
| 12/13/1989 | EP0345964A1 Organic polymeric material and ion-exchange membrane produced therefrom |
| 12/13/1989 | EP0345864A1 Process for making a membrane |
| 12/13/1989 | EP0345491A2 Filter for the separation of solids from heat gaseous or liquid media |
| 12/13/1989 | CN1037843A Cuprammonia method for preparing regenerated cellulose porous 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 | EP0344961A1 Composite membranes |
| 12/06/1989 | EP0344581A2 Semipermeable membrane and process for preparing 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 | US4885096 Using rubber copolymer of conjugated dienes and nitriles |
| 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 | WO1989011342A1 Porous inorganic membrane with reactive inorganic binder, and method of forming same |
| 11/30/1989 | WO1989011330A1 A process for drying water-wet polycarbonate membranes |
| 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 | 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 |
| 11/29/1989 | EP0344011A1 Inorganic porous membrane |
| 11/29/1989 | EP0343556A2 Process for the polymerization of tri-substituted silylalkynes |
| 11/29/1989 | EP0343387A1 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix |
| 11/29/1989 | EP0343247A1 Porous polytetrafluoroethylene membrane, separating apparatus using same, and process for their production |
| 11/29/1989 | CN1037462A Seperation of water from hydrocarbons and halogenated hydrocarbons |
| 11/28/1989 | US4883594 Purification, mechanical stability, microorganisms |
| 11/28/1989 | US4883593 Filling pores of cellulose semipermeable membrane with hexane, spraying with water |
| 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 | US4882025 PVC woven diaphragm for the electrolysis of hydrochloric acid |
| 11/21/1989 | US4881954 Porous support layer, separation layer composite |
| 11/15/1989 | EP0341696A2 A process for drying water-wet polycarbonate membranes |
| 11/15/1989 | EP0341473A2 Process for sulphonating aromatic polyether sulphones, and the sulphonated polyether sulphones |
| 11/15/1989 | EP0341309A1 Porous polypropylene membrane and process for its production |
| 11/14/1989 | US4880699 Pinhole-fdree; self-supporting; separation of gases; drug-releasing membranes |
| 11/14/1989 | US4880544 Crystal growth process for preparing inorganic dynamic membranes |
| 11/14/1989 | US4880442 Polyimide gas separation membranes |
| 11/14/1989 | US4880441 Asymmetric gas separation membranes having graded density skins |
| 11/14/1989 | CA1262880A1 Separation of dewaxing solvent from dewaxed oil in a lube oil dewaxing process using asymmetric polyimide membranes |
| 11/14/1989 | CA1262807A1 Polyimide reverse osmosis membrane produced using dioxane antisolvent and dimethyl formamide for liquid separations |
| 11/09/1989 | DE3814760A1 Process for the sulphonation of aromatic polyether sulphones |
| 11/09/1989 | DE3814759A1 Sulphonated, aromatic polyether sulphones |
| 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 | CN1036965A Highly soluble aromatic polyimides |
| 11/08/1989 | CN1036964A Polyimide gas separation membranes |
| 11/08/1989 | CN1036909A Reactive posttreatment for gas separation membranes |
| 11/08/1989 | CN1036908A Reactive posttreatment for gas separation membranes |
| 11/07/1989 | US4879316 Interpenetrating polymer network ion exchange membranes and method for preparing same |
| 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 | EP0339516A2 Catalyst and process for the preparation of polymers of tri-substituted silylalkynes |
| 11/02/1989 | EP0339502A2 Process for modifying cellulosic membrances for the improvement of their biocompatibility, and apparatus for carrying out the process |
| 11/02/1989 | EP0339200A1 Modified cellulose for biocompatible dialysis membranes II, and method for its preparation |
| 10/31/1989 | US4877533 Pervaporation; membrane with active layer of polyunsaturated acid or salt |
| 10/31/1989 | US4877529 Separation of organic liquids |
| 10/31/1989 | US4877528 Siloxane-grafted membranes |