Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
02/1987
02/04/1987CN86103913A Porous cellulose ester articles having striated surfaces
02/03/1987US4640901 Pyrolyzing silicon-based material, oxidizing pyrolysis product
02/03/1987US4640778 Nondeforming; uniform pore size
02/03/1987US4640774 Elastomer gasket between filter and exterior envelope
01/1987
01/29/1987WO1987000517A1 Flooded biological film reactor for water treatment, with gas charging via a membrane
01/28/1987EP0209935A1 Semipermeable membranes based on polymers containing sulphonate groups
01/27/1987CA1217096A1 Multicomponent membrane for gas separation
01/22/1987DE3524799A1 Process for preparing a treated surface layer, and molecular sieve membrane prepared according to this process
01/21/1987EP0209465A2 Hollow fiber membrane for artificial lung, method for manufacture thereof, and artificial lung using said hollow fiber membrane
01/21/1987EP0209114A2 Amphiphilic polyimide precursor and process for preparing the same
01/20/1987EP0135514A4 Cross linked porous membranes.
01/17/1987CN85101276A Process for separating water vapour from a gaseous mixture containing water vapour and methane
01/15/1987DE3524596A1 Dialysis membrane composed of modified cellulose with improved biocompatibility
01/14/1987EP0208629A1 Process for manufacturing an inorganic membrane support for separation techniques
01/14/1987EP0208450A2 Beer filtration
01/14/1987EP0207951A1 Osmotic concentration by membrane.
01/13/1987US4636314 Gas separation
01/13/1987US4636229 Fumaric diester polymer
01/07/1987EP0207721A2 Anisotropic membranes for gas separation
01/07/1987EP0207100A1 Process for changing the effective pore size of a structure.
01/06/1987US4634531 Membrane treatment method for semipermeable membranes
01/06/1987US4634530 Chemical modification of preformed polybenzimidazole semipermeable membrane
01/06/1987CA1216110A1 Porous regenerated cellulose membrane and process for the preparation thereof
12/1986
12/31/1986WO1986007544A1 Polyamide membranes
12/30/1986CA1215906A1 Reinforced microporous membrane
12/23/1986US4631157 Production of permeable cellulose triacetate membranes
12/23/1986US4631075 Three layers-polysulfones, polysiloxanes and vinyl halide-vinyl pivalate copolymer
12/16/1986US4629656 Ion exchange inorganic films made up of layered structure insoluble acid salts or tetravalent metals and/or their derivatives, and process for the preparation of same
12/10/1986EP0204512A2 Porous cellulose ester articles having striated surfaces
12/09/1986US4627992 Coagulation, precipitation
12/09/1986US4627859 Facilitated gas enrichment membrane composites and a process for the preparation thereof
12/04/1986WO1986007075A1 Novel fluoropolymer solutions
12/03/1986EP0203755A2 Polymer solutions
12/03/1986EP0203577A2 Novel fluoropolymer solutions
12/02/1986US4626468 Microporous support layer with interfacially polymerized copolyamide thereon
11/1986
11/26/1986EP0202850A2 Membranes
11/26/1986EP0202849A2 Solution of polymeric material
11/26/1986EP0202841A2 Gas separation
11/26/1986EP0202554A2 Hollow fiber
11/25/1986US4625000 Sulfonated with silyl halosulfonate then cleavage of silyl group
11/25/1986US4624760 Filter cleaning
11/20/1986WO1986006589A1 Removing and recovering plant polyphenols
11/18/1986US4623670 Mixing with and extraction of pore-formers
11/18/1986CA1214154A1 Method for reproducing oxygen and nitrogen and membrane therefor
11/12/1986EP0201361A1 Asymmetric or composite membranes based on polyquinoxalines, and their use in gas permeation
11/12/1986CA1213873A Porous materials for concentration and separation of hydrogen or helium, and process therewith for the separation of the gas
11/12/1986CA1213793A Reverse osmosis membranes based on hydroxyalkyl methacrylate and methacrylic acid copolymers
11/05/1986EP0199901A2 Supporting layer for a semi-permeable membrane and method for making it
11/05/1986EP0199844A2 Process and device for separating hydrogen from a substance mixture, especially a gas mixture
11/04/1986USRE32277 Hollow fibers of cuprammonium cellulose and a process of the manufacture of same
11/04/1986US4620955 Forming a gel sheet, heating, stretching, solvent extraction
10/1986
10/28/1986US4619995 Films for food preservation
10/28/1986US4619897 Hydrophilic and hydrophobic
10/28/1986US4619767 Composite semipermeable membrane
10/22/1986EP0197996A1 Microporous membranes of ultrahigh molecular weight polyethylene
10/22/1986EP0197969A1 Process for the preparation of cellulose film, cellulose film produced thereby, artificial skin graft and its use.
10/21/1986US4618534 Composite membrane and process for producing the same
10/09/1986WO1986005707A1 Reversed phase membranes
10/07/1986US4616041 Membranes of substantially non-crosslinked organic polymers
10/07/1986CA1212498A1 Polymers having acid functionality
09/1986
09/30/1986US4614586 Sulfonated polyarylacetylene
09/24/1986EP0195549A2 A separation membrane and process for manufacturing the same
09/23/1986US4613625 Treated with acid halide to provide acid radicals within membrane
09/23/1986US4613467 Fluorosulfonated carboxylic acid derivative as intermediate for cation exchange membrane copolymer
09/23/1986US4613440 Composite membranes based on interpenetrating polymer networks
09/23/1986CA1211662A1 Apparatus for the separation of hydrogen sulfide from a gas mixture
09/17/1986EP0194684A2 A composite membrane for use in gas separation
09/16/1986US4612119 Polysulfones
09/16/1986US4612118 Composite semipermeable membrane of polyamine and trianzine
09/10/1986EP0193725A2 Process for spinning hollow fiber membranes
09/09/1986US4610791 Dialysis membrane and method of making
09/09/1986US4610762 Method for forming polymer films having bubble release surfaces
09/04/1986EP0160050A4 Substituted aliphatic polyamide porous membranes.
09/03/1986EP0193318A2 Microporous membrane of ultra-high molecular weight alpha-olefin polymer
09/02/1986US4609728 Method of treating a cellulosic hollow fiber
09/02/1986US4609468 Phosphoric or sulfuric acid; polyvinyl alcohol, polyvinyl fluoride, polyoxyethylene glycol, cellulose acetates
09/02/1986US4609464 Hollow fibers for use in dialysis and artificial kidney
08/1986
08/27/1986EP0192143A2 Permeable polymer membrane for desiccation of gas
08/27/1986CN85108100A Process for the preparation of cellulose film, cellulose film produced thereby, artificial skin graft and its use
08/26/1986US4608319 Extended surface area amorphous metallic material
08/26/1986US4608172 Hydrophilic polycarbonates
08/20/1986EP0191237A1 Aqueous emulsions containing hydrophilic silicone-organic copolymers
08/20/1986EP0191209A1 Thin-film semipermeable membranes, a method for their preparation and hydrogen-sensing and-separating devices including them
08/19/1986US4607088 Shaped body for gas separation
08/19/1986US4607070 Block polymer, phase boundary process
08/19/1986US4606943 Method for preparation of semipermeable composite membrane
08/19/1986US4606824 Limulus amebocyte lysate
08/19/1986CA1209764A1 Reverse osmosis membrane quenching
08/13/1986EP0190647A2 Copolymer, separating membrane made thereof and method for separating charge transfer interactive substance from a liquid mixture containing the same
08/13/1986EP0190558A2 Method for the manufacture of a hydrophilic porous membrane
08/13/1986EP0190505A1 Hydrophilic silicone-organic copolymer elastomers
08/13/1986EP0190212A1 Separation of water from organic fluids.
08/12/1986US4605685 Cationic, anionic polymers
08/12/1986US4605526 Spreading a polymer solution over a polar liquid, then desolventiz
08/05/1986US4604326 Porous regenerated cellulose hollow fiber and process for preparation thereof
08/05/1986US4604208 Liquid filtration using an anionic microporous membrane
08/05/1986US4604204 With cyanuric chloride, polymer, and compound containing ionic group
08/05/1986CA1209057A1 Microporous filter system and process
07/1986
07/30/1986EP0189019A1 Structure with membranes having pores extending throughout, process for producing this structure and its uses
07/30/1986EP0188950A1 Process for the production of porous and permeable inorganic membranes