| Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060) |
|---|
| 06/28/1991 | WO1991009828A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes |
| 06/28/1991 | CA2048624A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes |
| 06/27/1991 | WO1991008829A1 New filter media for use in surgical and clean room masks |
| 06/27/1991 | DE3942868A1 Verbundmembran, verfahren zu ihrer herstellung und ihre verwendung The composite membrane, process for their preparation and their use |
| 06/27/1991 | DE3942867A1 Composite membrane for sepn. of gas mixts. - has porous backing, gas-permeable interlayer and perm-selective layer of amphiphilic mols. contg. 1 or 2 7-20C alkyl gps. per polar gp. |
| 06/26/1991 | EP0434342A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/26/1991 | EP0433787A1 Process for producing multilayer polytetrafluoroethylene porous membrane |
| 06/26/1991 | CN1052434A Process for producing multilayer polytetrafluoroethylene porous membrane |
| 06/25/1991 | US5026834 Modified cellulose for biocompatible dialysis membranes |
| 06/20/1991 | CA2031163A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/19/1991 | EP0432827A1 Improved process for preparing modified poly-(2,6-dimethyl-p-oxyphenylene) |
| 06/19/1991 | EP0432826A1 Modified poly-(2,6-dimethyl-p-oxyphenylene), process for preparing it and its use in membranes for separating gas mixtures |
| 06/19/1991 | EP0432396A1 Condenser/membrane permeater |
| 06/19/1991 | EP0432358A1 Treated composite polyamide membranes to separate concentrated solute |
| 06/19/1991 | EP0207100B1 Process for changing the effective pore size of a structure |
| 06/19/1991 | CN1012900B Preparation method for gas separating film of polyimide |
| 06/19/1991 | CN1012879B Improved composite separation membranes and preparation and use thereof |
| 06/14/1991 | CA2022612A1 Treated composite polyamide membranes to separate concentrated solute |
| 06/13/1991 | CA2031978A1 Process for preparing modified poly-(2,6-dimethyl-p-oxyphenylene) |
| 06/13/1991 | CA2031977A1 Modified poly-(2,6-dimethyl-p-oxyphenylene), process for preparing it and its use in membranes for separating gas mixtures |
| 06/12/1991 | EP0431494A2 Filtration media with low protein adsorbability |
| 06/12/1991 | CN1052056A Condenser/membrane permeater |
| 06/11/1991 | US5022996 Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes |
| 06/11/1991 | US5022990 Chemical resistant filters |
| 06/09/1991 | WO1991008778A1 Membranes for absorbent packets |
| 06/09/1991 | CA2069487A1 Membranes for absorbent packets |
| 06/06/1991 | DE3939867A1 Composite membrane for sepn. of water from fluid mixts. - contg. organic components by pervaporation has sepn. layer of polyvinyl alcohol post- crosslinked by acid in vapour phase |
| 06/06/1991 | DE3939841A1 Composite membrane for sepn. of water from aq. amine solns. - has sepn. layer of polyvinyl alcohol post-crosslinked by acid in vapour phase |
| 06/05/1991 | EP0430082A2 Porous membrane formed from an interpenetrating polymer network having hydrophilic surface |
| 06/05/1991 | CN1051917A Sulfonated hexafluoro bis-a -polysulfone membranes and process for fluid separation |
| 06/02/1991 | WO1991008043A1 Composite membrane for separating water from fluids containing organic compounds by pervaporation |
| 06/02/1991 | CA2046332A1 Composite membrane for separating water from fluids containing organic compounds by pervaporation |
| 05/31/1991 | CA2026710A1 Condenser/membrane permeater |
| 05/30/1991 | WO1991007454A1 Fluorinated poly(ether sulfones) |
| 05/29/1991 | CN1051681A Hardened gum formed-in-place membranes |
| 05/28/1991 | US5019666 Non-porous polycarbonate membranes for separation of aromatics from saturates |
| 05/28/1991 | US5019631 Alkylene oxide modified poly(2,6-dimethyl-p-oxyphenylene) |
| 05/28/1991 | US5019264 Multilayer reverse osmosis membrane of polyamide-urea |
| 05/28/1991 | US5019263 Membrane composed of a pure molecular sieve |
| 05/28/1991 | US5019262 Hydrophilic microporous membrane |
| 05/28/1991 | US5019261 Permeable, porous polymeric membrane with hydrophilic character methods for preparing said membranes and their use |
| 05/28/1991 | US5019260 Surface treated polyvinylidene fluoride |
| 05/28/1991 | US5019140 Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them |
| 05/24/1991 | CA2003777A1 Process for the solvent-induced crystallization of amorphous poly(etheretherketone)-type polymers and the article formed thereby |
| 05/22/1991 | EP0428083A2 Supported filtration membrane and method of manufacturing same |
| 05/22/1991 | EP0428052A2 Gas separation by adsorbent membranes |
| 05/22/1991 | EP0423249A4 Extrusion of hollow fibre membranes |
| 05/21/1991 | US5017670 Graft polymers |
| 05/21/1991 | US5017292 Permselective |
| 05/15/1991 | EP0427338A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/15/1991 | EP0427079A2 Semipermeable polyetherketone membrane |
| 05/14/1991 | US5015387 Method for activating cellulosic membrane, activated cellulosic membrane, method of fixing physiologically active substance on the activated cellulosic membrane and physiologically active substance-fixed membrane |
| 05/14/1991 | US5015382 Microporous support layer with interfacially polymerized copolyamide membrane thereon |
| 05/14/1991 | US5015380 Microporous support layer with interfacially polymerized copolyamide membrane thereon |
| 05/14/1991 | US5015275 Filtration, distillation, stripping membranes |
| 05/14/1991 | US5015270 Phenylindane-containing polyimide gas separation membranes |
| 05/14/1991 | CA2028417A1 Reaction bonded silicon nitride filtration membranes |
| 05/11/1991 | CA2029567A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/08/1991 | EP0426546A2 Ceramic filter and process for making it |
| 05/08/1991 | EP0426119A2 Process for recovery of ammonia from an ammonia-containing gas mixture |
| 05/08/1991 | EP0426118A2 Sulfonated hexafluoro bis-A polysulfone membranes and process for fluid separations |
| 05/08/1991 | EP0425491A1 Reversible mechanochemical engines comprised of bioelastomers capable of modulable inverse temperature transitions for the interconversion of chemical and mechanical work. |
| 05/08/1991 | CA2029387A1 Semipermeable membrane made from polyether ketones |
| 05/07/1991 | US5013765 Method for sulfonating aromatic polyether sulfones |
| 05/07/1991 | US5013448 Process for the preparation of chlorine-resistant polyester semipermeable membranes |
| 05/07/1991 | US5013339 Compositions useful for making microporous polyvinylidene fluoride membranes, and process |
| 05/07/1991 | US5013338 Composite, silicon or germanium acetylenic polymer |
| 05/07/1991 | US5013332 Aromatic polyester |
| 05/02/1991 | WO1991005602A1 Selective separation membrane of polyparabanic acid |
| 05/02/1991 | WO1991005601A1 Porous inorganic membranes |
| 05/02/1991 | EP0425252A1 Metal oxide porous ceramic membranes with small pore sizes |
| 05/02/1991 | EP0425108A2 Dehydration of organic oxygenates |
| 05/01/1991 | CA2029001A1 Sulfonated hexafluoro bis-a polysulfone membranes and process for fluid separations |
| 05/01/1991 | CA2028876A1 Process for recovery of ammonia from an ammonia-containing gas mixture |
| 04/30/1991 | US5012036 Polyarylate membranes or aromatics/saturates separation (C-2415) |
| 04/30/1991 | US5012035 Polyphthalatecarbonate membranes for aromatics/saturates separation |
| 04/30/1991 | US5011637 Preparing cellulose ester membranes for gas separation |
| 04/30/1991 | US5011603 Alumina powder; high strength |
| 04/30/1991 | US5011518 Permselective membrane and process for producing the same |
| 04/30/1991 | CA1283655C Acid decrystallization of aminopolysaccharides and derivatives thereof |
| 04/30/1991 | CA1283582C Modified polymeric surfaces and process for preparing same |
| 04/24/1991 | EP0424118A2 Hardened saccharinic gum formed-in-place membranes |
| 04/24/1991 | EP0424041A2 Membranes obtained from copolymers of polyimides and aliphatic polyesters. |
| 04/24/1991 | EP0424040A2 Membranes obtained from crosslinked copolymers of aliphatic polyesters diols and dianhydrides. |
| 04/24/1991 | EP0424039A1 Separation of mixtures of aromatics and saturates |
| 04/24/1991 | EP0424004A1 Surfactant treatment of polyaramide gas separation membranes |
| 04/24/1991 | EP0423949A2 Membrane process for separation of organic liquids |
| 04/24/1991 | EP0423369A1 Antithrombotic blood treating system |
| 04/24/1991 | EP0423249A1 Extrusion of hollow fibre membranes. |
| 04/24/1991 | CA2026660A1 Dehydration of organic oxygenates |
| 04/23/1991 | US5010134 Heat resistance, mechanical properties |
| 04/23/1991 | US5009934 Process for preparing poly-(imidesiloxanes) |
| 04/23/1991 | US5009824 Process for preparing an asymmetrical macroporous membrane polymer |
| 04/23/1991 | US5009783 Curable blend of porous polysulfone support with layer of polyvinyl alcohol and polyacrylic acid |
| 04/23/1991 | US5009679 Membranes formed from rigid aromatic polyimide polymers |
| 04/23/1991 | US5009678 Semipermeable composite membranes comprising very thin layer of a sulfonated aromatic polysulfone-containing polyether coated on a porous support |
| 04/18/1991 | WO1991004785A1 Porous membranes suitable for separation devices and other uses |
| 04/17/1991 | EP0422886A1 Production of aromatic polyimide membranes |
| 04/17/1991 | EP0422885A1 Phenylindane-containing polyimide gas separation membranes |
| 04/17/1991 | EP0422884A1 Surfactant treatment of aromatic polyimide gas separation membranes |