Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
09/1995
09/20/1995EP0671971A1 Membranes having improved selectivity and recovery, and process for making same
09/20/1995CN1029773C Preparation for hollow fiber super-filtering film of high-permeability polysulfone
09/19/1995US5451386 Catalytic decomposition of exhaust gas containing ammonia, metal-ceramic composite
09/19/1995US5451322 Method and apparatus for tritiated water separation
09/14/1995WO1995024736A1 High vertical aspect ratio thin film structures
09/14/1995WO1995024472A1 Microfabricated capsules for isolation of cell transplants
09/14/1995WO1995024262A1 Hollow-fiber blood-purifying membrane and process for producing the same
09/14/1995WO1995024261A1 Microfabricated particle filter
09/14/1995WO1995024260A1 Device for separating mixtures of substances or for purifying substances by pervaporation
09/13/1995EP0671202A2 Process for the production of hollow carbon fiber membranes
09/13/1995EP0670751A1 Improved sensor membranes
09/13/1995EP0484466B1 Membrane for separating liquid mixtures of substances by pervaporation
09/13/1995EP0466827B1 Cationic charge modified filter media and use thereof
09/12/1995US5449728 Optically active acetylene polymer, membrane thereof and optical resolution method using the same
09/08/1995WO1995023640A1 Large pore synthetic polymer membranes
09/06/1995EP0553111B1 Thin film composite ultrafiltration membrane
09/06/1995CN1107885A Removing and recovering plant polyphenols
09/06/1995CN1029667C Semipermeable membranes based on specified tetrabromobisphenol type polyesters
09/06/1995CN1029666C Improved composite membranes, their manufacture and their use
09/05/1995US5447559 Hydrogen recovery by adsorbent membranes
09/05/1995CA1336872C Composite membranes
08/1995
08/30/1995CN1107383A Porous membrane preparation with polytetrafluorethylene
08/29/1995US5445739 Composite membrane that includes a separation membrane
08/23/1995EP0667803A1 Gas-separation process
08/23/1995CN1107075A Treating and reusing method of waste liquid for cleaning printing plate in printing paper money
08/22/1995US5443728 Method of preparing membranes from blends of polyetherimide and polyimide polymers
08/22/1995US5443727 Thin, self-interlocking, tactic, hydrophilic polyvinyl alcohol enveloping the surfaces, retaining complex geometric configuration
08/16/1995EP0666773A1 Cross-flow microfiltration process
08/16/1995EP0504228B1 Membranes for absorbent packets
08/10/1995DE19503703A1 Ultrafiltration membrane prodn.
08/10/1995DE19501825A1 Reverse osmosis membrane prodn.
08/09/1995EP0555269B1 Nanofiltering membrane and process for its manufacture
08/08/1995US5439736 Exciting gaseous blend of fully alkylated disiloxane and oxygen with glow discharge, depositing plasma polymer on porous substrate at increased rate
08/08/1995US5439706 Method for manufacturing inorganic membranes by organometallic chemical vapor deposition
08/02/1995EP0665049A1 Microporous membrane made of non-crystalline polymers and method of producing the same
08/01/1995US5438082 Sulfonating polyether ketone polymers, dissolving in organic solvent and converting to films, then converting sulfonate groups to sulfonyl chloride groups which are reacted with amines to yield sulfonamide groups which are then crosslinked
07/1995
07/27/1995WO1995019837A1 Gas plasma polymerized permselective membrane
07/26/1995EP0663853A1 Hollow fiber membrane incorporating a polyimide and process for preparing same
07/25/1995US5436068 Selectively transmissive polysulfonic hollow fiber membrane
07/25/1995US5435955 Process of producing porous polypropylene hollow fiber and film
07/25/1995US5435918 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase
07/20/1995WO1995019219A1 Composite microporous polyolefin film and process for producing the same
07/20/1995DE4413574C1 Membrane for micro-filtration of fluid suspensions or gases
07/19/1995EP0663235A1 Phase separated membrane
07/19/1995EP0663232A2 Ion transport membranes with dense layer containing a catalyst
07/19/1995EP0663231A2 Ion transport membranes with porous mixed conducting layer containing a catalyst
07/18/1995US5433859 Supported microporous filtration membrane and method of using same
07/18/1995US5433852 Method for modifying PVC separation membranes
07/13/1995WO1995018673A1 Hydrolytically stable nylon membrane
07/13/1995CA2180537A1 Hydrolytically stable nylon membrane
07/12/1995EP0662340A1 Cartridge sorption device
07/11/1995US5431864 Method of making composite porous carbonaceous membranes
07/11/1995US5431817 Bleach resistant polysulfone/polyurethane composite membranes
07/11/1995CA2137970A1 Cartridge sorption device
07/05/1995EP0661336A1 A porous polytetrafluoroethylene film and a manufacturing method therefor
07/05/1995CN1104556A Cation exchanging membrane and its manufacture
07/05/1995CN1029201C Process for producing multilayer polytetrafluoroethylene porous memberane and semisintered polytetrafluoroethylene multilayer structure
07/05/1995CN1029200C Process for treating mixture containing dewaxing oil dewaxing
07/04/1995US5430073 Process for preparing polymers and mouling compounds based thereon
07/04/1995US5429748 Polymide membrane for separation of solvents from lube oil
07/04/1995US5429743 Inorganic composite membrane comprising molecular sieve crystals
07/04/1995CA1336222C Low equivalent weight sulfonic fluoropolymers
07/04/1995CA1336151C Fine alpha alumina ultrafiltration membranes
06/1995
06/29/1995WO1995017152A1 Liquid dispenser for sterile solutions
06/29/1995DE4445973A1 Polyvinylidenfluorid-Membran Polyvinylidene fluoride membrane
06/28/1995EP0659469A2 Membrane for liquid mixture separation
06/28/1995EP0659468A1 Filter element and method for the production thereof
06/28/1995EP0659103A1 Polysulphone membrane and process for producing the same
06/28/1995EP0455645B1 Microporous hydrophobic fluoropolymer composites
06/28/1995EP0448647B1 Heat resistant microporous material production and products
06/27/1995US5428123 Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range
06/27/1995US5427684 Biocompatibility; damage to blood cells minimized
06/23/1995CA2128296A1 Polyvinylidene fluoride membrane
06/22/1995WO1995016652A1 Production of polymerization grade dicyclopentadiene
06/22/1995DE4343114A1 Pervaporation and gas sepn. membranes sepn.
06/21/1995EP0658906A2 Protein adsorbed shapable electroconductive polymer film
06/21/1995EP0658127A1 Alkyl substituted polyimide, polyamide and polyamide-imide gas separation membranes
06/21/1995EP0658126A1 Gas separation membranes made from blends of aromatic polyimide, polyamide or polyamide-imide polymers.
06/21/1995CN1028967C Gas dehydration membrane apparatus
06/20/1995US5426172 Concentration or separation method, copolyamides copolyimide-amides and the use thereof
06/20/1995US5426128 Porous polytetrafluoroethylene and a process for the production thereof
06/20/1995US5425878 Membranes for ion transport and method for obtaining them
06/20/1995US5425877 A permeate pipe having membrane sheet and glass fibers wound around radially, fixed by a crosslinked resins
06/19/1995CA2138332A1 Protein adsorbed shapable electroconductive polymer film
06/15/1995WO1995015809A1 Production of membranes
06/15/1995WO1995015808A1 Production of membranes
06/14/1995CN1103604A Producing method for polyacrylonitrile film
06/08/1995WO1995015351A1 Aromatic polysulphones
06/08/1995DE4341601A1 Membranes based on copolymers of acrylonitrile
06/08/1995CA2177965A1 Aromatic polysulphones
06/06/1995US5422411 Fluoropolymers for electrolytic cells
05/1995
05/31/1995EP0655013A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
05/31/1995CN1028611C Sulfonated hexafluoro bis-a-polysulfone membranes and process for fluid separation
05/31/1995CN1028610C Treatment for reverse osmosis membranes
05/31/1995CN1028609C High flux semipermeable membranes
05/26/1995WO1995013861A1 A method for separation and synthetic polymers that can be used as separation media in the method
05/26/1995WO1995013860A1 Membrane filter and a method of manufacturing the same as well as a membrane
05/26/1995WO1995013859A1 Hydrophilic compositions with increased thermal resistance
05/26/1995WO1995013858A1 Hydrophilic compositions with increased thermal and solvent resistance
05/26/1995WO1995013855A1 Phase separation apparatus