Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
10/1984
10/23/1984US4478717 Semipermeable membrane treated with modified vinyl polymer
10/16/1984US4477634 Modified acrylonitrile polymer containing semipermeable membranes
10/09/1984US4476024 Microporous hydrophobic membrane
09/1984
09/27/1984WO1984003645A1 Microporous metal-plated polytetrafluoroethylene articles and method of manufacture
09/25/1984US4473475 Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids
09/25/1984US4473474 Cationic polymers
09/18/1984US4472175 Polymer film coated with bronsted or lowry acid; permselectivity
09/12/1984EP0117919A2 A membrane treatment method for semipermeable membranes
09/11/1984CA1174399A1 Catalyst-containing stable polyurethane forming compositions which are non-cytotoxic when cured and separatory devices employing same
08/1984
08/30/1984WO1984003229A1 A preprimed filter device and its method of manufacture
08/28/1984US4468503 Amino ketone cross-linked polyphenylene oxide
08/21/1984US4466931 Very rapid irradiation polymerization
08/16/1984WO1984003055A1 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
08/16/1984WO1984003054A1 Cross linked porous membranes
08/08/1984EP0115375A2 Semi-permeable membrane storage solutions
08/01/1984EP0114286A2 Semi-permeable encapsulated membranes, process for their production and their use
07/1984
07/17/1984US4460526 Process for producing aromatic polyimide hollow filaments
07/10/1984US4459210 Porous membrane
07/04/1984EP0112614A2 Semipermeable membranes and method of making the same
07/03/1984CA1170194A2 Hollow filament separatory module and method of fabrication
07/03/1984CA1170010A1 Porous vinylidene fluoride polymer membrane and process for its preparation
07/03/1984CA1170009A1 Modified polyvinylalcohol containing semipermeable composite membranes, process for their manufacture and their use
06/1984
06/27/1984EP0111663A2 Membrane and process for producing the membrane
06/27/1984EP0111499A1 Wettable hydrophobic hollow fibers
06/26/1984US4456708 Method for the preparation of thin-skinned asymmetric reverse osmosis membranes and products thereof
06/13/1984EP0110580A2 Improved process for removing pyrogens utilizing a hydrophobic microporous membrane
06/12/1984US4454268 Starch-based semipermeable films
06/12/1984US4453320 Process for changing the water content of water-absorbing or water-releasing material
06/12/1984CA1169118A1 Hydrophilic polymer coated microporous membranes capable of use as a battery separator
06/12/1984CA1168811A1 Microporous polyethylene hollow fibers and a process for preparing the same
06/05/1984CA1168594A1 Process for changing the water content of water- absorbing or water-releasing material
05/1984
05/29/1984US4451424 Method of gelling cast, polysulfone membranes
05/29/1984CA1168007A1 Method of gelling cast, polysulfone membranes
05/16/1984EP0108601A2 Polypropylene membranes
05/15/1984CA1167211A1 Process for preparing hollow microporous polypropylene fibers
05/08/1984CA1166813A1 Method for recovering efficiency of semipermeable membrane
05/01/1984CA1166414A1 Process for producing aromatic polyimide hollow filaments
05/01/1984CA1166411A1 Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids
04/1984
04/24/1984US4444716 Method for manufacture of hollow fiber
04/24/1984US4444663 Membrane and method for manufacture thereof
04/18/1984EP0105629A2 Microporous sheet material, method of making and articles made therewith
03/1984
03/28/1984EP0103816A2 Artificial organ and method for manufacturing thereof
02/1984
02/28/1984CA1162708A1 Method for producing permeable polymeric membranes
02/21/1984US4432920 Forming a membrane from dispersion blend of waxy or fatty substance and high polymer, then solvent extraction
02/21/1984US4432875 Bonding surfactant, containing both hydrophilic and hydrophobic groups, to hydrophobic polymer
02/15/1984EP0100552A2 Hydrophilized membrane of porous hydrophobic material and process of producing same
01/1984
01/31/1984CA1161215A1 Process for preparing liquophilic polyamide membrane filter media and product
01/05/1984WO1984000015A1 Wettable hydrophobic hollow fibers
12/1983
12/13/1983US4420612 Catalyst membrane
12/06/1983US4419308 Solvent extraction of imide or isocyanurate
12/06/1983US4419242 Composite membrane for a membrane distillation system
11/1983
11/08/1983CA1156411A1 Microporous siloxane polymer membrane, and process for its preparation
11/08/1983CA1156410A1 Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid
11/01/1983US4413074 Polymer, hydroxyalkyl cellulose, perfluorocarbon curfactant, crosslinking, coating
11/01/1983US4412922 Positive-charged ultrafiltration membrane for the separation of cathodic/electrodeposition-paint compositions
10/1983
10/18/1983US4410338 Gas separating members and a method of making the same
10/11/1983US4409339 Hydrophilic sulfonated polyolefin porous membrane and process for preparing the same
10/11/1983CA1154916A1 Treatment of reverse osmosis membranes
10/05/1983EP0090483A2 Polyamide membrane and process for its production
10/04/1983US4407846 Ionizing radiation, graft polymerization
09/1983
09/20/1983US4405688 Microporous hollow fiber and process and apparatus for preparing such fiber
09/07/1983EP0087955A2 Immobilized inorganic diffusion barriers and the use thereof in the separation of small molecular species from a solution
09/06/1983US4402785 Apparatus for making a web-supported membrane
09/01/1983WO1983002905A1 Immobilised inorganic diffusion barriers and their application to the separation of small molecular species from a solution
08/1983
08/31/1983EP0087228A1 Polyamide membrane with controlled surface properties and process for its production
08/30/1983US4401567 Microporous polyethylene hollow fibers
08/30/1983CA1152942A1 Hydrophilic monomer treated microporous films
08/02/1983CA1151077A1 Tubular permselective membrane module and method
06/1983
06/29/1983EP0082433A2 Hydrophilic asymmetrical macroporous membrane of a synthetic polymerizate
06/29/1983EP0082393A2 Reinforced microporous membrane
06/29/1983EP0082355A2 Semipermeable membranes of modified polystyrene, process for their manufacture and their use
06/15/1983EP0081182A2 Membrane for the separation of liquid or gaseous multicomponent systems
05/1983
05/31/1983CA1147108A1 Modification of regenerated cellulose membranes for organic liquid permeation and the use of said membranes to recover selected organic liquids
05/18/1983EP0079307A1 Use of photocrosslinkable copolymers in the manufacture of semipermeable membranes
05/17/1983US4384047 Porous vinylidene fluoride polymer membrane and process for its preparation
05/03/1983US4381985 With capillaries from film material such as polyvinyl chloride, polyethylene, polypropylene, a polyester or polyurethane
03/1983
03/15/1983CA1142831A1 Osmotically driven fluid dispenser
02/1983
02/22/1983CA1141510A1 Methods for preparing anisotropic membranes and membranes prepared therefrom
02/01/1983US4371487 Process for the production of a hollow fiber semipermeable membrane
02/01/1983CA1140533A1 Hollow fibers of synthetic polymers
02/01/1983CA1140308A1 Membrane with porous surface
01/1983
01/18/1983CA1139680A1 Gas separating members and a method of making the same
01/12/1983EP0069305A1 Reverse osmosis membrane quenching
01/11/1983US4368112 Conditioned by series of solvents of decreasing polarity
12/1982
12/28/1982CA1138584A1 Preparation of skinless hydrophilic polyamide membrane filters
12/21/1982US4364759 Semipermeable membrane for gas separation
12/15/1982EP0066814A1 Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids
12/08/1982EP0066408A2 Porous membrane
11/1982
11/30/1982US4361484 Process for treating and/or removal of substances from liquid, especially whole blood
11/23/1982US4360434 Amphoteric ion-permeable composite membrane
11/16/1982US4359510 Hydrophilic polymer coated microporous membranes capable of use as a battery separator
10/1982
10/26/1982US4356267 Enzyme immobilization in cellulosic hollow fibres
10/19/1982US4354938 Regenerated cellulose
10/12/1982US4353799 Exposure to ionizing atmosphere to improve surface tension
10/06/1982EP0061610A1 Semipermeable membranes from acrylonitrile-based polymers, process for their preparation and their use
09/1982
09/28/1982CA1132312A1 Membrane and method for making same
09/21/1982CA1131861A1 Process for preparing microporous hollow fibers
09/15/1982EP0060127A2 Ion transfer membrane assembly, a method of constructing such an assembly and an electrochemical cell
09/08/1982EP0059393A2 Hyperfiltration membranes with separation layers from monomolecular surfactant films
09/07/1982US4348329 Phospholipids having conjugated di-yne system