|
Match
|
Document |
Document Title |
|
|
7608189 |
Device for removing bacterial lipopolysaccharides and/or lipoteichoic acids from protein-containing fluids and its use for the treatment of sepsis
A device for removing bacterial lipopolysaccharides and lipoteichoic acids from blood or plasma in an extracorporeal perfusion system contains, in a housing that can be incorporated into the...
|
|
|
7604129 |
Lyotropic liquid crystal nanofiltration membranes
The invention provides composite nanofiltration membranes (FIG. 5 ) with lyotropic liquid crystal (LLC) polymer porous membranes ( 30 ) attached to a porous support ( 20 ). The LLC membranes are...
|
|
|
7575687 |
Membranes and methods useful for caustic applications
The invention provides methods for purifying caustic feed streams using membranes that comprise polysulfonamide matrices.
|
|
|
7553417 |
Functionalized substrates
Functionalized substrates, methods of making functionalized substrates, and methods of using functionalized substrates are disclosed.
|
|
|
7537697 |
Selective membrane having a high fouling resistance
A selective membrane having a high fouling resistance. In one embodiment, the selective membrane is a composite polyamide reverse osmosis membrane in which a hydrophilic coating is applied to the...
|
|
|
7524425 |
Filter for the removal of substances from blood products
A filter device for the depletion of the leukocyte content from blood products comprising: a porous element comprising at least one fibrous web having a pore size suitable for leukocyte removal...
|
|
|
7497951 |
Composite semipermeable membrane, production process thereof, and element, fluid separation equipment and method for water treatment using the same
A composite semipermeable membrane, which comprises a separating functional layer comprising polyamide formed on a porous substrate film, wherein the separating functional layer comprising...
|
|
|
7490725 |
Reverse osmosis membrane and process
A reverse osmosis membrane, and methods for making and using the membrane. The membrane has a continuous, defect-free, non-porous, hydrophilic coating that reduces the susceptibility to fouling.
|
|
|
7476636 |
Method of making mixed matrix membranes using electrostatically stabilized suspensions
Mixed matrix composite (MMC) membranes with minimal macrovoids and defects are provided by the current invention. MMC Membranes are needed that have minimal macrovoids and defects, provide...
|
|
|
7462283 |
System and method for liquid filtration based on a neutral filter material
The present invention teaches, that the removal of particles of any charge from liquid stream is possible by mechanisms other than sieving with good flow and low pressure drop. The use of a weakly...
|
|
|
7462223 |
Method for producing a membrane from a crosslinked polymer blend, and corresponding fuel cell
The present invention relates to a polymer blend membrane comprising a bridged polymer which is produced by a selected process. The membrane of the invention displays a significantly improved...
|
|
|
7425266 |
Water-filtering media and filters
In at least some embodiments, a filter comprises a filtering media. The filtering media is impregnated with chemical compounds that effectively retain water molecules and water-alcohol molecules...
|
|
|
7407702 |
Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator
A polymetaphenylene isophthalamide-based polymer porous film having a satisfactory porous structure that exhibits excellent gas permeability and heat resistance. It is produced by a process which...
|
|
|
7404896 |
Modified membranes
A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify...
|
|
|
7393383 |
Separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers
Membranes are used to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from...
|
|
|
7364660 |
Porous membrane
A polyamide having an equilibrium water absorption of not more than 10% is used as a main material. As a polyamide having an equilibrium water absorption of not.more than 10%, for example, a...
|
|
|
7284668 |
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...
|
|
|
7258767 |
Solar dew tube
The invention pertains to a device for the condensation of water from an aqueous liquid by using a temperature gradient, which device includes:
(a) a vapor chamber that can be brought in...
|
|
|
7241367 |
Permeable membrane diaphragm of different layers for electroytic cells
The present invention relates to a permeable membrane diaphragm of different layers for electrolytic cell, especially for chloro-alkali electrolytic cell. The diaphragm is asymmetric, which...
|
|
|
7223341 |
Positively charged membrane
The present invention provides a positively charged microporous membrane having a protein binding capacity of about 25 mg/ml or greater comprising a hydrophilic porous substrate and a crosslinked...
|
|
|
7201860 |
Polyamide membrane with improved hydrolytic stability and method for production thereof
The invention relates to a method for producing a hydrolytically stable polyamide membrane having an open-pored, microporous and sponge-like support-layer structure, using a process involving...
|
|
|
7195923 |
Ratiometric determination of glycated protein
The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the...
|
|
|
7160356 |
Dithiolene functionalized polymer membrane for olefin/paraffin separation
A polymeric composite may be used for forming fluid separation membranes. The membranes may be formed from polyimide, polyamide or poly (pyrrolone-imide) materials. Polyamides may be formed by the...
|
|
|
7156997 |
Package assembly for piperazine-based membranes
A package assembly comprising a sealed water-impermeable bag enclosing: a spiral wound filtration element comprising a piperazine-based membrane, and an aqueous solution comprises a substantially...
|
|
|
7138058 |
Acid stable membranes for nanofiltration
Semi-permeable membranes are described that allow for the efficient processing of many liquid based feed solutions, particularly those that contain acids. The membranes of this invention are able...
|
|
|
7132049 |
Negatively charged membrane
The present invention provides, in certain embodiments, a negatively charged microporous membrane comprising a porous substrate and a crosslinked coating having fixed negative charges. The...
|
|
|
7094347 |
Positively charged membrane
The present invention provides a positively charged microporous membrane having a protein binding capacity of about 25 mg/ml or greater comprising a hydrophilic porous substrate and a crosslinked...
|
|
|
7081202 |
Composite semipermeable membrane, production method thereof, and water treatment method using the same
A composite semipermeable membrance of the present invention comprises a thin film and a porous support membrane supporting the thin film, wherein the thin film includes polyamide based resin...
|
|
|
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...
|
|
|
7067058 |
Hydrophilic membrane and process for making the same
A process for imparting hydrophilic properties to a polymeric membrane by exposing the membrane to an acrylate monomer containing hydrophilic segments, such as ethylene oxide, and a hydrophilic...
|
|
|
7001518 |
Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof
Novel low pressure reverse osmosis and nanofiltration membranes and a process for their preparation are disclosed. Polyamide reverse osmosis membranes are contacted with organic sulfonic acid...
|
|
|
6890435 |
Hollow fiber microfiltration membranes and a method of making these membranes
A hollow fiber microfiltration (MF) membrane is provided. The casting solution used to make this membrane includes a fiber-forming polymer having a degree of polymerization greater than about 1000,...
|
|
|
6887380 |
Silicone-coated organic solvent resistant polyamide composite nanofiltration membrane, and method for preparing the same
The present invention relates to a silicone-coated organic solvent resistant polyamide composite nanofiltration membrane and a method for preparing the same. More particularly, the present...
|
|
|
6878278 |
Composite membrane and method for making the same
A composite membrane and method for making the same, comprising a porous support and a polyamide surface. The subject membrane provides improved flux and/or rejection rates. The subject membrane is...
|
|
|
6869532 |
Nucleic acid binding matrix
A microporous membrane comprising a highly electropositive hydrophilic material capable of irreversibly binding one or more nucleic acids, the membrane being useful for isolating, amplifying and...
|
|
|
6860393 |
Filter device and filter element comprising at least one negatively charged membrane
The present invention provides, in certain embodiments, a negatively charged microporous membrane comprising a porous substrate and a crosslinked coating having fixed negative charges. The...
|
|
|
6837996 |
Polysulfonamide matrices
Sulfonamide polymer matrices and their various uses are disclosed. Among the uses is the configuration of the matrix with a porous support membrane to form a semipermeable membrane of the...
|
|
|
6837381 |
Highly permeable composite reverse osmosis membrane and method of producing the same
The present invention provides a composite reverse osmosis membrane as a polyamide membrane including a side chain amino group such as a residue of a polyvinyl alcohol-based amine compound...
|
|
|
6833073 |
Composite nanofiltration and reverse osmosis membranes and method for producing the same
The present invention relates to nanofiltration and reverse osmosis membranes that may be used in a number of commercial applications in which a contaminant, such as salt, must be separated from a...
|
|
|
6821430 |
Method of treating reverse osmosis membrane element, and reverse osmosis membrane module
In the treatment, a reverse osmosis membrane element having a polyamide skin layer is loaded in a pressure vessel in a membrane separator and contacted with a bromide-containing aqueous solution of...
|
|
|
6805796 |
Water treatment apparatus
A water treatment apparatus according to the present invention includes a plurality of composite reverse osmosis membrane modules arranged in multi-stages, each of the modules including a porous...
|
|
|
6783937 |
Negatively charged membrane
The present invention provides, in certain embodiments, a negatively charged microporous membrane comprising a porous substrate and a crosslinked coating having fixed negative charges. The...
|
|
|
6746595 |
Ammonium ionophore, an ammonium ion selective matrix, an ammonium ion-selective sensor, and a method for detecting ammonium ions in a fluid sample
An ammonium selective ionophore for use in ion selective electrodes.
|
|
|
6723422 |
Composite reverse osmosis membrane and process for preparing the same
A composite reverse osmosis membrane is described, which includes a polyamide skin layer on a porous support, with a contact angle between the polyamide skin layer surface and water of 45° or...
|
|
|
6709590 |
Composite reverse osmosis membrane and method for producing the same
A polyamide skin layer is formed on a porous support by reacting an aromatic compound having at least two reactive amino groups with a polyfunctional acid halide compound having at least two...
|
|
|
6623637 |
Hollow-fiber membrane module
This invention relates to a hollow fiber membrane module to be used in industrial fields such as the semiconductor industry, food processing industry, pharmaceutical industry, and medical industry,...
|
|
|
6602415 |
Polymeric membrane for separation of fluids under elevated temperature and/or pressure conditions
A polymeric composite may be used for forming fluid separation membranes. The fluid separation membranes may go through a separation selectivity maximum as a function of operating conditions (e.g.,...
|
|
|
6569225 |
Breathable barrier films containing cavated fillers
A breathable, stretch-thinned barrier film having improved strength, processability and/or breathability is formed from a mixture of a thermoplastic polymer and cavated filler particles such as...
|
|
|
6565748 |
Cationically charge-modified membranes
The present invention relates to cationically charge-modified membranes and methods of preparing such membranes. In one major aspect of the invention, the membranes are hydrophobic membranes that...
|