Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
03/1987
03/24/1987US4652283 Polyphenylene oxide membrane having chemically bonded coating
03/18/1987EP0214859A2 Microporous polymeric films and process for their manufacture
03/18/1987EP0214360A2 Process for making and for enhancing the selectivity of an integral asymmetric membrane
03/18/1987EP0214346A1 Cellulose acetate membrane, its preparation and its use for oil-polar solvent separation
03/17/1987US4650711 Method for sizing polytetrafluoroethylene fabrics
03/17/1987US4650551 Sizing polytetrafluoroethylene
02/1987
02/26/1987DE3530315A1 Nuclear-track filter as gas inlet systems for vacuum apparatuses
02/24/1987US4645602 Process for producing reinforced microporous membrane
02/17/1987US4643715 Artificial organ and method for manufacture thereof
01/1987
01/28/1987EP0210059A1 Process for preparing microporous polyethylene film
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
01/20/1987EP0135514A4 Cross linked porous membranes.
01/20/1987EP0135511A4 A preprimed filter device and its method of manufacture.
01/14/1987EP0207951A1 Osmotic concentration by membrane.
01/13/1987US4636307 Hydrophobic and hydrophilic microporous membranes
01/08/1987DE3523068A1 Process for producing a filter having pores of a predetermined and roughly equal microsize
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
01/06/1987US4634447 Method for manufacturing artificial organ
12/1986
12/31/1986WO1986007544A1 Polyamide membranes
12/30/1986EP0206354A2 Multilayer composite hollow fibers and method of making same
12/30/1986CA1215906A1 Reinforced microporous membrane
12/23/1986CA1215505A1 Microporous polyolefinic hollow fiber and upward melt-spinning process to produce the same
12/17/1986EP0204943A1 Process for the surface modification of polyvinylidene fluoride articles
12/16/1986US4629563 Porous skin and reticulated support structure
12/10/1986EP0204468A2 Membrane
12/10/1986EP0204337A2 Porous hollow fiber
12/09/1986US4627992 Coagulation, precipitation
12/04/1986WO1986007075A1 Novel fluoropolymer solutions
12/03/1986EP0203755A2 Polymer solutions
12/03/1986EP0203577A2 Novel fluoropolymer solutions
12/03/1986EP0203459A2 A hydrophilic composite porous membrane, a method of producing the same and a plasma separator
11/1986
11/26/1986EP0202850A2 Membranes
11/26/1986EP0202849A2 Solution of polymeric material
11/26/1986EP0202554A2 Hollow fiber
11/20/1986WO1986006589A1 Removing and recovering plant polyphenols
11/20/1986EP0201604A1 Permselective hollow yarn membrane, method of producing the same, method of separating plasma components, and plasma component separator
11/18/1986US4623670 Mixing with and extraction of pore-formers
11/18/1986US4623463 Formation of porous membranes
11/18/1986CA1214114A1 Film for separating multicomponent liquid or gaseous systems
11/06/1986WO1986006294A1 Method for producing solution diffusion membranes
11/04/1986US4620956 Process for preparing microporous polyethylene film by uniaxial cold and hot stretching
11/04/1986US4620955 Forming a gel sheet, heating, stretching, solvent extraction
10/1986
10/22/1986EP0197996A1 Microporous membranes of ultrahigh molecular weight polyethylene
10/21/1986US4618533 Porous membrane having hydrophilic surface and process
10/14/1986US4617126 Polysulfones
10/09/1986WO1986005707A1 Reversed phase membranes
10/09/1986WO1986005706A1 Rapid vapour transport through unwetted porous barriers
10/01/1986EP0195860A1 Porous membranes and processes for producing the porous membranes
09/1986
09/30/1986US4614524 Water-free hydrocarbon separation membrane and process
09/23/1986US4613625 Treated with acid halide to provide acid radicals within membrane
09/23/1986US4613441 Thermoplastic resin porous membrane having an increased strength factor
09/17/1986EP0194546A2 Membrane with pores
09/12/1986WO1986005117A1 Altering pore size distributions
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
08/1986
08/26/1986US4608060 Separation of polar gases from nonpolar gases
08/19/1986US4607088 Shaped body for gas separation
08/19/1986US4606740 Separation of polar gases from nonpolar gases
08/19/1986CA1209764A1 Reverse osmosis membrane quenching
08/13/1986EP0190558A2 Method for the manufacture of a hydrophilic porous membrane
08/12/1986US4605526 Spreading a polymer solution over a polar liquid, then desolventiz
08/05/1986US4604208 Liquid filtration using an anionic microporous membrane
07/1986
07/30/1986EP0189019A1 Structure with membranes having pores extending throughout, process for producing this structure and its uses
07/23/1986EP0188104A2 Hydrophobic filter material and method for the treatment with a wetting agent
07/23/1986EP0187936A2 Preparation of a permselective and flexible anion exchange membrane
07/22/1986US4601828 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
07/22/1986US4601827 Aromatic polyamide
07/15/1986CA1207737A1 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
07/15/1986CA1207607A1 Hydrophilized membrane of porous hydrophobic material and process of producing same
07/09/1986EP0186758A2 Porous membrane having hydrophilic surface and process of its manufacture
07/08/1986US4599364 Chemical modification of membrane to modify transport properties
07/03/1986WO1986003685A1 Process for changing the effective pore size of a structure
07/02/1986EP0186182A2 Liquid membrane
07/02/1986EP0185813A1 Method for preparing thin regenerated cellulose membranes of high flux and selectivity for organic liquids separations
07/01/1986US4597843 Enhanced bulk porosity of polymer structures via plasma technology
06/1986
06/24/1986US4596858 Formed from solution of unsaturated amide containing polymer, polyol, sulfamic acid
06/24/1986CA1206308A1 Process for modifying porous polymeric membrane
06/17/1986US4595708 Using N,N-dimethylacetamide as solvent, magnesium ion for film forming polyaramide containing sulfonate
06/17/1986US4595707 Membranes comprising microporous structure
06/10/1986US4594207 Heating polymer blend above critical temperature; components differ in miscibility; cooling
06/05/1986WO1986003135A1 Osmotic concentration by membrane
06/04/1986EP0183103A1 Flat permeable membrane and method for manufacture thereof
05/1986
05/28/1986EP0182506A2 Membranes
05/20/1986US4589891 Hydrogen permeatin membrane, process for its manufacture and use
05/14/1986EP0180987A2 Flat permeable membrane and method for manufacture thereof
05/14/1986EP0180599A1 High flux membrane.
05/13/1986US4588633 Higher strength; separators, diaphragms, filters
05/13/1986US4588407 Hollow fiber coated with fat soluble vitamin
05/09/1986WO1986002575A1 Permselective hollow yarn membrane, method of producing the same, method of separating plasma components, and plasma component separator
05/07/1986EP0180052A1 Hollow fiber membrane and method for manufacture thereof
04/1986
04/30/1986EP0179474A2 Gas separation membrane and process for preparing it
04/29/1986CA1203682A1 Semi-permeable membrane storage solutions
04/29/1986CA1203655A1 Method for manufacture of hollow fiber
04/24/1986WO1986002282A1 Microporous membranes of ultrahigh molecular weight polyethylene