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8877062 Antithrombogenic hollow fiber membranes and filters  
The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying...
8741974 Method of forming filter in fluid flow path in microfluidic device  
A method for forming a filter in a fluid flow path in a microfluidic device is provided. The method includes introducing a photopolymerization reaction solution into the microfluidic device; and...
8505745 Fouling resistant membranes formed with polyacrylonitrile graft copolymers  
The present application is generally directed towards polyacrylonitrile- (PAN-) based, amphophilic graft copolymers, for example, for the production of membranes for liquid filtration. In one...
8403151 Nanofiber-containing membrane, a composite membrane, a process for producing them and their use  
A nanofiber-containing membrane has a specific surface area of 0.1 to 1000 m2/g, porosity of 10 to 99.5% and a pore size of 0.01 to 10 μm. This provides a nanofiber-containing membrane having...
8197745 Perm selective asymmetric hollow fibre membrane for the separation of toxic mediators from blood  
A permselective asymmetric hollow fiber membrane for the separation of toxic mediators from blood, a process for the preparation of such a membrane, and the use of such a membrane in hemodialysis,...
8136675 Perm selective asymmetric hollow fibre membrane for the separation of toxic mediators from blood  
The present invention relates to a permselective asymmetric hollow fibre membrane for the separation of toxic mediators from blood, comprised of at least one hydrophobic polymer and at least one...
8137562 Use of a colloidal suspension of a cationic polymer to treat a support for medical use  
The invention concerns a composite support comprising a base support for the treatment of a biological fluid, in which: “the base support is essentially-constituted by a first polymer carrying...
8118176 Membrane unit element, semipermeable membrane, filtration device, and processes for manufacturing the same  
The object of the invention is a unit element forming a membrane comprising a semi-permeable material able to separate in two compartments a filtration device for extracorporeal treatment of a...
7811507 Dialysis membrane having improved ability for removal of middle molecules  
A hydrophilic semipermeable hollow-fibre membrane for blood treatment, with an integrally asymmetric structure based on a synthetic polymer. The hollow-fiber membrane possess on its inner surface...
7749385 Materials and methods for processing non-aqueous mixtures  
The invention provides porous matrices that comprise one or more surfactants that can be used in non-aqueous environments.
7694827 Methods of reducing thermo-oxidation of polymers such as polyacrylonitrile  
A filter comprising a polymer material comprising a polymer matrix such as polyacrylonitrile containing dispersed metal oxide particles. The metal oxide particles are for example ferric oxide...
7677398 Process for improving membranes  
The invention provides a process for improving the antifouling properties and for increasing the selectivity of commercial composite polyamide nanofiltration (NF) and reverse osmosis (RO)...
7648034 Coated membranes and other articles  
The present invention provides porous media or membranes having a surface coating that includes a cross-linked terpolymer which has a superior combination of properties, including heat stable...
7604746 Pervaporation composite membranes  
The present application discloses a composite membrane comprising (a) a support member that has a plurality of pores extending through the support member and (b) a cross-linked copolymer...
7553417 Functionalized substrates  
Functionalized substrates, methods of making functionalized substrates, and methods of using functionalized substrates are disclosed.
7172075 Defect free composite membranes, method for producing said membranes and use of the same  
A defect free semipermeable composite membrane having outstanding integrity and high water permeability is provided. Said composite membrane comprises an inside support layer to provide sufficient...
7073671 Microporous membrane substrate having caustic stable, low protein binding surface  
The present invention provides porous media or membranes having a surface coating that includes a first coating of a cross-linked terpolymer and a second coating comprising a copolymer or a...
7071130 Laminated material of segregating membrane and segregating membrane supporting material, and its method of manufacture  
Segregating membrane supporting material is a three-dimensional assembly of fibers thermo-compressed into non-woven fabric, and the non-woven fabric fibers are joined together in sheet form. This...
7056458 Non-thrombogenic semipermeable membrane and method for making same  
The invention concerns a non-thrombogenic semipermeable membrane comprising a support semipermeable membrane and an anticoagulant suitable for treating blood and plasma by extracorporeal...
7045062 Pervaporation membranes and methods of use  
Pervaporation membranes including poly(acrylamide)-grafted alginate membranes, which may be optimized for the separation of alcohols from water, low viscosity sodium alginate membranes containing...
6858141 Process for the preparation of ultrafiltration membranes of polyacrylonitrile, using malic acid as an additive  
The present Application relates to a process for the preparation of ultrafiltration membranes from polyacrylonitrile using malic acid as additives, with said membrane of molecular weight ranging...
6558546 pH dependent membrane diffusion  
A pore plugging material, for pH dependent membrane diffusion, in which cyclic olefins having phosphazene-functional moieties provide predictable erosion properties when used to plug pores in...
6423232 Use of a neutral or cationic polymer to prevent activation of the contact phase of blood or plasma in contact with a semi-permeable membrane  
A method for preventing activation of the contact phase of blood or plasma which comes into contact with a semi-permeable membrane based on polyacrylonitrile bearing fixed negative charges, which...
6325218 Polyion complex separation membrane with a double structure  
This invention relates to a polyion complex separation membrane with a double structure, which is applicable in the separation process of a water-soluble mixture having ionic molecules or...
6293411 Integral supported separation membranes  
Supported separation membranes are disclosed wherein the permselective membrane is integral with a polymeric support of non-woven fibers having a particular air permeability, the integral...
6260715 Means for the biological purification of a biological fluid  
A module for extracorporeal purification of a biological fluid includes at least one support or wall defining a compartment which is delimited by an ionic functionalized support or wall, the...
6248238 Medical apparatus for the extracorporeal treatment of blood or plasma, and processes for using this apparatus  
A medical apparatus for the extracorporeal treatment of blood or plasma comprises a semi-permeable membrane consisting of at least one electronegative polymer, such that the surface of the...
6180007 Membrane formed by an acrylonitrile-based polymer  
A permselective graft polymer is disclosed that is formed by converting into intermediate reactive sites a portion of the cyano groups of a backbone polymer containing --CH2 --CH(--C.tbd.N)--...
6159370 Solvent and acid resistant membrane on the basis of polyacrylnitrile (PAN) and a comonomer copolymerized therewith and a method of manufacturing such a membrane  
In a method of making solvent and acid resistant membrane on the basis of polyacrylnitrile (PAN) and a comonomer copolymerized therewith wherein the membrane is formed from a solution by phase...
6071406 Hydrophilic polymeric phase inversion membrane  
A process for rendering hydrophilic a separation membrane having a hydrophobic matrix polymer comprises doping the membrane solvent system with a cyclic ester additive which is compatible with the...
5840190 Surface modified biocompatible membranes  
A surface modified biocompatible membranes used in contact with body fluids or tissue and method of preparing the membrane with functional groups incorporated into the membrane material to...
5746917 Strongly alkaline anion exchange membranes and process for producing the same  
Chloromethylated polymers are generally used to produce strongly alkaline anion exchange membranes. This requires handling toxic chloromethyl ethers. The object of the invention is thus to create...
5711881 Hematopoietic inhibiting factor containing compositions  
The present invention relates to hematopoietic inhibiting factor-containing compositions which inhibit colony formation of CFU-E, comprising a substance obtained in the fraction eluting at...
5708040 Method for preparing porous membranes utilizing water or organic vapor adsorption  
The present invention describes a method for preparing an asymmetric porous membrane by a dry-wet phase inversion method, which comprises contacting a cast or spun polymer solution with water or...
5707522 Permselective membrane of polyacrylonitrile copolymer and process for producing the same  
A separatory membrane is provided which has a sufficient durability and shows a high rate of permeation therethrough and a high separation factor to a variety of organic substances and a wide...
5700374 Pervaporation membranes and use thereof  
A membrane comprising a pore-free separation layer, wherein the separation layer consists of poly-dimethyl aminoethyl methacrylate homopolymers or N-vinylpyrrolidone dimethyl aminoethyl...
5698101 Hollow fiber membranes  
A hollow fiber membrane is produced having an outer surface, and inner surface enclosing a lumen, and a continuous network of interconnecting pores extending from the outer surface to the inner...
5695717 Gas exchange apparatus  
A gas exchange device (100) with an extracorporeal blood circuit (102) in which a blood pump (110) is connected, with a CO2 exchange unit (112), and an oxygenator (128), whereby the gas exchange...
5627217 Interfacial polymerization in a porous substrate and substrates functionalized with photochemical groups  
A method of preparing a porous article is provided. The method includes: contacting a porous substrate with a first reactant that enters pores of the substrate; and contacting the porous substrate...
5626760 Multifunction device for the treatment of blood  
The present invention relates to a multifunction device for treatment of blood and more particularly for extrarenal purification by extracorporeal circulation of blood. A device is proposed...
5595646 Extended use planar sensors  
A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except...
5552054 Composite membrane, its application and process for the dehydration of organic solvents  
The invention relates to a composite membrane with a porous polymer support layer and a polymer top layer, whereby the porous polymer support layer is of polyacrylonitrile (PAN), polyacrylamide,...
5510394 High ionic conductance ion exchange membranes and their preparation  
It has been discovered (Examples 4, 11 and 17) that certain desirable films will not absorb a sufficient amount of certain desirable, polymerizable monomers as to result in interpolymer membranes...
5444097 Porous polymeric structures and a method of making such structures by means of heat-induced phase separation  
Porous polymeric structures are provided along with a method to make such structures comprising heat-induced phase separation of a polymeric solution exhibiting a lower critical solution temperature.
5401499 Method of adsorbing pyrogens  
An insoluble material for adsorbing a pyrogen comprising a polymer of an aziridine compound. According to the present invention, a large mount of the pyrogen can be easily removed from a solution...
5393432 Separating membrane of polyion complex  
To provide a separating membrane of a polyion complex having excellent separation factor, permeation rate and performance stability and being used in separating a mixture of water and an organic...
5324430 High performance pan composite membranes  
A composite fiber or film for use in a fluid separation membrane made of PAN coated with an intermediate permeable material and further coated with a selective layer. The PAN fiber or film is...
5320754 Pan composite membranes  
A novel method for making a composite separation membrane, and the product of that method. This novel method includes applying one or more perfluoroethers to the surface of a microporous fiber or...
5304307 Chargedasymmetric mosaic membrances  
The present invention relates to semipermeable mosaic polymer membranes of asymmetric structure and with a macroscopic distribution of the mosaic-forming anionic and cationic charges (sites). The...
5290448 Polyacrylonitrile membrane  
An asymmetric semipermeable membrane for dialysis and/or ultrafiltration is composed of a copolymer of acrylonitrile and acrylic ester and an ionic or ionizable monomer in the form of a hollow...

Matches 1 - 50 out of 144 1 2 3 >