Patents
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
12/1993
12/15/1993EP0344188B1 Process for the recovery of alcohols using an organic acid-modified polymer membrane
12/15/1993CN1079414A Nuclear track microporous membrane and making method thereof
12/14/1993US5270137 Secondary battery with graft-polymerized separator
12/14/1993US5269931 Polyethersulfone membrane, polyethyleneimine-epichlorohydrin resin containing polyamines as charge modifying agent
12/08/1993EP0299063B1 Hydrophilic article and method of producing same
12/01/1993EP0572274A2 Novel high flux hollow fiber membrane
12/01/1993EP0571871A2 Method for preparing a hydrophilic membrane
11/1993
11/30/1993CA2096895A1 Novel high flux hollow fiber membrane
11/24/1993CN1078661A Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same
11/18/1993EP0570232A2 Microporous polysulfone supports suitable for removal of low density lipoprotein-cholesterol
11/16/1993US5262451 Multifunctional thrombo-resistant coatings and methods of manufacture
11/16/1993US5262054 Process for opening reverse osmosis membranes
11/15/1993CA2095424A1 Microporous polysulfone support suitable for removal of low density lipoprotein-cholesterol
11/11/1993WO1993022421A1 Microfabricated sperm handling devices
11/11/1993WO1993022058A1 Polynucleotide amplification analysis using a microfabricated device
11/11/1993WO1993022055A2 Fluid handling in microfabricated analytical devices
11/11/1993WO1993022054A1 Analysis based on flow restriction
11/11/1993WO1993022053A1 Microfabricated detection structures
11/11/1993WO1993022039A1 Hydrophilic microporous polyolefin membrane
11/11/1993WO1993022034A1 Polyvinylidene fluoride microporous membrane and method
11/10/1993EP0569229A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
11/10/1993EP0568968A2 Blood-treating device, and process for producing the same
11/09/1993US5260360 Olefin polymer, processing aid
11/09/1993CA1323968C Macroporous polymeric membranes for the separation of polymers and a method of their application
11/06/1993CA2095423A1 High efficiency removal of low density lipoprotein-cholesterol from whole blood
11/03/1993EP0568045A1 Polysulfone-based hollow fiber membrane and process for manufacturing the same
11/02/1993US5258203 Reverse osmosis polyamide membranes
11/02/1993US5258149 Process of making a membrane for high efficiency removal of low density lipoprotein-cholesterol from whole blood
11/02/1993US5258127 Biological filters
11/02/1993CA1323855C Filtration media with low protein adsorbability
11/02/1993CA1323845C Membrane filtration apparatus and method of making a membrane filtration unit
10/1993
10/28/1993WO1993020930A1 Diaphragm based on graft copolymers
10/28/1993DE4213217A1 Membran auf Basis von Graftcopolymeren Membrane based on graft copolymers
10/27/1993EP0566754A1 Heat-resisting porous membrane, hydrophilized heat-resisting porous membrane and production processes thereof
10/26/1993CA1323475C Treatment of permeable membranes
10/26/1993CA1323474C Composite membranes, processes for their preparation and their use
10/20/1993EP0566097A1 Process for forming porous polymeric product from a nonporous polymeric composition and product
10/20/1993EP0566046A1 Patterned porous polymeric product and process
10/20/1993EP0138841B1 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
10/19/1993US5254143 Diaphragm for gas-liquid contact, gas-liquid contact apparatus and process for producing liquid containing gas dissolved therein
10/19/1993CA1323271C Membrane-type artificial lung and method of using it
10/19/1993CA1323152C Method of manufacturing porous membrane and porous membrane manufactured by the same method
10/19/1993CA1323150C Air dried cellulose acetate membranes
10/13/1993EP0447486B1 Defect-free ultrahigh flux asymmetric membranes
10/12/1993US5252212 Semipermeable membrane of polyphosphazene
10/12/1993CA1323127C Solutions of fluoropolymers, and their use
10/07/1993DE4211522A1 Polymer membrane, useful for ultrafiltration, dialysis etc. - based on vinyl-aromatic monomer(s), 2H-tetrazole(s) with vinyl:phenyl substit(s), and polydiene graft base
10/07/1993DE4210413A1 Membrane filter for sepn. of poly-dispersions into continuous and dispersed phases - is a bonded powder mass on a carrier support grid providing high mechanical strength etc., useful for sepg. fluids contg. particle or oil matter
10/06/1993EP0564053A2 Blood cleaning method
10/06/1993EP0563605A1 Method for the production of microstructures
10/05/1993US5250240 Melt blend solution consisting of polyolefin and diluent
10/05/1993CA1322636C Heterogeneous membranes from highly filled thermoplastic, orientable polymers
09/1993
09/30/1993WO1993019115A1 Super porous polysaccharide gels
09/30/1993WO1993018845A1 Alcohol-insoluble nylon microporous membranes
09/29/1993EP0562303A2 Chemical valve
09/29/1993EP0505502B1 Dry high flux semipermeable membranes
09/29/1993CN2142751Y Device for cohering bundle of hollow fibers
09/28/1993CA1322444C Process for drying water-wet polycarbonate membranes
09/23/1993DE4305979A1 Chemical responsive valve used e.g. as release means for medicaments - has polymer matrix with variable permeability responding to ambient conditions
09/22/1993EP0561379A1 Filter medium having a limited surface negative charge for treating a blood material
09/22/1993EP0561277A1 Hydrophobic polymeric membrane composites
09/21/1993US5246743 Biphenyltetracarboxylic acids and hexafluoroisopropylidene biphenyltetracarboxylic acid
09/21/1993US5246647 Solvent
09/15/1993EP0559902A1 Permselective polyacrylonitrile copolymer membrane and production thereof
09/15/1993EP0453473B1 Support for selective immuno-purification of a liquid and process for treating said support
09/14/1993US5244799 Preparation of a polymeric hydrogel containing micropores and macropores for use as a cell culture substrate
09/14/1993US5244578 Blood plasma-separating membrane and blood plasma separator using the membrane
09/08/1993EP0559149A1 Process for preparing hollow fiber separatory devices
09/08/1993EP0338074B1 Treatment of permeable membranes
09/07/1993US5242636 Method of making a multilayer capillary membrane
09/01/1993EP0388468B1 Hydrophilic polypropylene porous membrane, process for its production, and apparatus for separating blood plasma
08/1993
08/31/1993US5240615 Filtration
08/31/1993US5240587 Method of producing a filter material
08/31/1993CA1321689C Process for preparing membranes from tetrahalobisphenol polycarbonates
08/31/1993CA1321687C Process and dope for forming asymmetric gas separation membranes having graded density skins
08/24/1993US5238992 Mixing water, emulsifier, hydrophilic monomer, hydrophobic monomer, agitating to form microemulsion, polymerizing to produce water insoluble porous solid homopolymer blends
08/24/1993US5238618 Melt blending polymer with a solubilizing amount of liquid to form a homogenous solution; forming; cooling; stretching; removal of liquid
08/24/1993US5238613 Microporous materials
08/24/1993US5238569 Porous material covered with thin film of polyphosphazene
08/24/1993US5238471 Spray deposition as aerosol on microporous substrate, annealing, rendered defect-free
08/24/1993CA1321554C Immunoassay filter and test device containing same, with flow-delaying polymer
08/24/1993CA1321451C Method for production of hollow fiber membrane
08/19/1993WO1993016176A1 Immobilization of chemical species in crosslinked matrices
08/19/1993WO1993016117A1 Water-soluble cellulose derivative and biocompatible material
08/19/1993WO1993015775A1 Method of producing anti-thrombogenic material and material produced thereby
08/17/1993US5236644 Process of making membrane for removal of low density lipoprotein-cholesterol from whole blood
08/17/1993US5236643 Preparation of gas separation membrane and spiral wound gas separation module
08/17/1993US5236592 Haemocompatible composite material and method of using thereof
08/17/1993US5236588 Asymmetric polymer membrane and preparation thereof
08/11/1993EP0554869A1 Biomaterials of enhanced compatibility
08/10/1993US5234739 Polytetrafluoroethylene porous film and preparation and use thereof
08/10/1993US5234594 Nanochannel filter
08/10/1993US5234538 Pores etched along beam tracks
08/05/1993WO1993015529A1 Preparation of a membrane and its use in an electrochemical cell
08/04/1993EP0553167A1 Material and process for producing the same
08/04/1993EP0300038B1 Microporous asymmetric polyfluorocarbon membranes
08/03/1993US5232642 Melt spinning, annealing
08/03/1993US5232601 Made-up of polysulfone; useful for hemodialysis treatment
08/03/1993US5232600 Polymerizing a fluorine containing monomer in the presence of a microporous polymeric membrane substrate forming a permanent chemical, bond between substrate and super strate
08/03/1993US5232597 High degree of fibrillation on outer surface