Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
12/1994
12/21/1994EP0629434A1 Process for making a microfiltration, ultrafiltration, pervaporation or reverse osmosis membrane for suspensions, emulsions or gas separation
12/15/1994CA2125063A1 Layered plasma polymer composite membranes
12/13/1994CA1333469C Microporous asymmetric polyfluorocarbon membranes
12/08/1994WO1994028059A1 Porous polytetrafluoroethylene and preparation
12/08/1994DE4339810C1 Process for the partial modification of porous, hydrophilic filter membranes, post-treated filter membranes and filtration modules fitted therewith, in particular filter candles
12/07/1994EP0627250A1 Method and device for draining-washing, and concentration type filter used therefor
12/06/1994US5370889 Microporous film and process for the production thereof
12/06/1994US5370836 Process of making porous fluoroplastics membrane for an air depolarized battery
11/1994
11/30/1994EP0626193A1 Positively charged polyvinylidene fluoride membrane
11/30/1994EP0625915A1 Method of producing anti-thrombogenic material and material produced thereby
11/30/1994EP0407566B1 Highly air permeable expanded polytetrafluoroethylene membranes and process for making them
11/30/1994CN2183811Y Three-slot apparatus for making monomolecular film
11/29/1994US5369012 Method of making a membrane having hydrophilic and hydrophobic surfaces for adhering cells or antibodies by using atomic oxygen or hydroxyl radicals
11/29/1994US5368733 Water-soluble cellulose derivative and biocompatible material
11/29/1994CA1333237C Composite membranes and their manufacture and use
11/29/1994CA1333236C Hydrophilic microporous membrane and process for preparing same
11/24/1994WO1994026399A1 Surface modified biocompatible membranes
11/24/1994CA2162495A1 Surface modified biocompatible membranes
11/23/1994EP0605470A4 Hydrophilic membranes prepared from polyethersulfone/poly-2-oxazoline/polyvinylpyrrolidone blend.
11/17/1994EP0624283A1 Preparation of a membrane and its use in an electrochemical cell.
11/17/1994EP0624114A1 Microstructured membranes and methods for making same
11/15/1994CA2096276A1 Membrane from polyphenylsulfone (radel-r)
11/15/1994CA1333028C Continuous process for making coated composite hollow fiber membranes
11/12/1994CA2114668A1 Positively charged polyvinylidene fluoride membrane
11/09/1994EP0623380A1 Membrane for the separation of polydispersions and/or emulsions and process for the manufacture of said membrane
11/08/1994US5362761 Process for fabricating porous silicone product
11/08/1994US5362760 Temperature resistant microporous film
11/08/1994US5362525 Silicon carbide, silicon nitride, silica, silicates
11/02/1994EP0622111A1 Plasma polymerization and surface modification inside hollow micro-substrates
11/02/1994EP0621917A1 Porous webs
10/1994
10/25/1994US5358556 Membranes having selective permeability
10/22/1994CA2120460A1 Plasma polymerization and surface modification inside hollow micro-substrates
10/19/1994EP0619755A1 Contaminant removal system and process
10/18/1994US5356936 Exposing to oxygen plasma
10/18/1994US5356461 Permselectivity for oxygen and nitrogen mixtures; polymeric multilayer
10/18/1994US5356459 Separating gas mixture by contacting with composite membrane produced by one step coating process providing interior separation layer and exterior protective polysiloxane layer
10/13/1994WO1994022928A1 Microemulsion polymerization systems and coated materials made therefrom
10/13/1994WO1994022561A1 Composite carbon fluid separation membranes
10/13/1994WO1994022432A1 Method of coating microporous membranes and resulting products
10/13/1994CA2159446A1 Composite carbon fluid separation membranes
10/11/1994US5354587 Hydrophilic compositions with increased thermal and solvent resistance
10/11/1994US5354470 Artificial lung; hollow fibers having lumps connected in the direction of the fiber axis; three dimensional network; durability; high gas-exchanging capacity; no leakage of blood
10/11/1994US5354469 Layered plasma polymer composite membranes
10/11/1994CA1332325C Stable membranes from sulfonated polyarylethers
10/05/1994CN1093018A Hollow fibre film with characteristic of transmiting of reinforcement and preparation of same
10/04/1994US5352513 Layers of crystallized polyolefin and hydrocarbon processing compound coated with a fluorochemical oxazolidinone; clothing; aging and wear resistance
10/04/1994US5352511 Copolymer of fluorinated ethylenically unsaturated monomer and vinyl alcohol reacted with a monoepoxide
09/1994
09/29/1994WO1994017903A3 Membranes for use in affinity separation and methods for activating membranes
09/27/1994US5350805 Reverse osmosis or ultrafiltration membrane
09/22/1994DE4325650C1 Membranes made of acrylonitrile copolymers, process for the production thereof and use thereof
09/22/1994DE4308150A1 Semipermeable membranes made of casting solutions having structural viscosity
09/21/1994EP0615779A1 Oleophobic modified microporous polymers
09/21/1994EP0615778A1 Process for making hydrophilic membranes
09/15/1994WO1994020207A1 Exothermic process with porous means to control reaction rate and exothermic heat
09/15/1994WO1994020192A1 Method and apparatus for performing a solid-phase extraction under pressurized conditions
09/15/1994CA2157408A1 Exothermic process with porous means to control reaction rate and exothermic heat
09/14/1994EP0614923A1 Hydrophilic material and semipermeable membrane made therefrom
09/14/1994EP0604590A4 Gas plasma treated porous medium and method of separation using same.
09/13/1994US5346924 Heterogeneous ion exchange materials comprising polyethylene of linear low density or high density high molecular weight
09/13/1994CA1331955C Filtering device for blood platelet
09/06/1994US5344560 Process for producing filtration membranes having amino acids that are capable of adsorbing proteins
08/1994
08/30/1994US5342434 Coating from reaction of perfluoroalkyl alcohol with a diisocyanate
08/24/1994EP0611790A2 Polytetrafluoroethylene porous film and preparation and use thereof
08/24/1994EP0611592A2 Membranes for use in affinity separation and methods for activating membranes
08/23/1994US5340480 Polysulfone-based hollow fiber membrane and process for manufacturing the same
08/18/1994WO1994017985A1 Process of making microporous pps membranes
08/18/1994WO1994017974A1 Process of making microporous pps membranes
08/18/1994WO1994017906A1 Inter-penetrating network charge modified microporous membrane
08/18/1994WO1994017905A1 Polymer porous structure and process
08/18/1994WO1994017904A1 Modified membrane for medical purposes
08/18/1994WO1994017903A2 Membranes for use in affinity separation and methods for activating membranes
08/18/1994WO1994017894A1 Leukocyte removal method and filter unit for same
08/18/1994CA2155516A1 Inter-penetrating network charge modified microporous membrane
08/18/1994CA2155188A1 Polymer porous structure and process
08/18/1994CA2154069A1 Process of making microporous pps membranes
08/17/1994EP0610756A1 Activated membrane and method for ligate separation
08/17/1994EP0610755A1 An affinity separation device and its use for immunoglobulin separation
08/16/1994US5338770 Anticoagulants; amine-functional siloxanes reacted with polyethers coupled to bioactive material; oxygenators
08/04/1994WO1994016803A1 Thermally induced phase separated azlactone membrane
08/04/1994WO1994016802A1 Polytetrafluoroethylene porous film and method for manufacturing the same
08/03/1994EP0608366A1 Oil, water and sweat repellent microporous membrane materials.
07/1994
07/26/1994US5332551 Atomic oxygen reactor having at least one sidearm conduit
07/21/1994WO1994015703A1 A filter
07/21/1994WO1994015701A1 Currents in narrow pores
07/20/1994EP0606198A1 Microporous hollow fiber or film membrane of poly(phenylene sulfide) (pps)
07/19/1994US5330830 Heat-resisting porous membrane, hydrophilized heat-resisting porous membrane and production processes thereof
07/13/1994EP0605470A1 Hydrophilic membranes prepared from polyethersulfone/poly-2-oxazoline/polyvinylpyrrolidone blend.
07/13/1994EP0511289B1 Method and apparatus for treating filter membranes
07/12/1994US5328613 High temperature polymers formed by melt mixing with finely divided glass and leaching the intercommunicating glass
07/06/1994EP0604883A2 Process for preparing porous hydrophilic membranes
07/06/1994EP0604711A1 Process for opening reverse osmosis membranes
07/06/1994EP0604590A1 Gas plasma treated porous medium and method of separation using same
07/06/1994EP0589897A4 Ultraporous and microporous membranes and method of making membranes
07/05/1994US5326629 Olefin polymers with side groups as fibers or filaments in filters
06/1994
06/29/1994EP0603987A1 Permanent hydrophilic-anionic or hydrophylic-cationic surface layer and process for its manufacture
06/29/1994EP0603463A2 Permanent hydrophilic modification for fluoropolymers and process for producing this modification
06/29/1994EP0603299A1 Semi-permeable membranes derived from reactive oligomers
06/29/1994EP0340262B1 Semi-permeable membranes with an internal discriminating region
06/23/1994WO1994013352A1 Liquid applicator with metering insert
06/23/1994WO1994007594A3 Hollow fiber membrane incorporating a polyimide and process for preparing same