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7387730 |
Hollow fiber membrane module, method of manufacturing the hollow fiber membrane module, and housing for hollow fiber membrane module
In a hollow fiber membrane flat module according to the present invention, both ends of hollow fiber membrane bundle which are formed by bundling a plurality of hollow fiber membrane as a sheet are...
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7378024 |
Methods for improving filtration performance of hollow fiber membranes
In accordance with the present invention, there are provided methods for improving performance of hollow fiber filtration membrane modules. Invention methods comprise a unique backwashing technique...
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7374673 |
Channeled polymer fibers as stationary/support phases for chemical separation by liquid chromatography and for waste stream clean-up
Polymer fibers having a novel cross-sectional geometry are used as stationary phase materials for liquid chromatography separations. Fibers of 20 to 50 micrometer diameters have surface-channel...
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7368526 |
Functionalized porous poly(aryl ether ketone) materials and their use
Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional...
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7364659 |
Preparation of asymmetric polyethylene hollow fiber membrane
A porous polyethylene hollow fiber membrane having a pore-size gradient across the inner and outer surfaces thereof is prepared by introducing, during the cooling step of a melt-spun polyethylene...
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7354515 |
Fluid concentrator
A concentrator is used for concentrating a fluid, particularly a plasma component out of blood, for treatment of a patient. The concentrator apparatus includes a main housing defining a centrifuge...
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7351338 |
Porous membrane of vinylidene fluoride resin and process for producing the same
There is provided a porous membrane of vinylidene fluoride resin which has pores of appropriate size and distribution and also excellent mechanical strength represented by tensile strength and...
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7344645 |
Methods of minimising the effect of integrity loss in hollow fibre membrane modules
A method and apparatus for reducing the effect of integrity loss in a hollow fiber membrane module, said module including a plurality of hollow fiber membranes ( 5 ), at least one end of the fiber...
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7311689 |
Method and apparatus for peripheral vein fluid removal in heart failure
A method and apparatus for ultrafiltration of blood operating by removing blood from a peripheral blood vessel at a rate of less than two percent of total cardiac output of a patient, extracting...
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7309424 |
Filtering apparatus, back wash method therefor, filtering device and power plant
A filtering apparatus having a vessel and a filter made from fluororesin and treated before filtering operation by at least one of adding thermal treatment in gas or liquid and penetrating with...
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7309385 |
Efficient 3-D nanostructured gas separation membranes
There is provided a high efficient gas separation membrane of two or more layers, which comprises a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional...
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7306754 |
Membrane and the use thereof
The invention relates to a membrane that consists of a polymer or a polymer mixture. The aim of the invention is to produce membranes, especially planar membranes or hollow fiber membranes that...
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7303609 |
Manufacture of polyimide-hollow fibres
A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt %...
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7300582 |
Immersed membrane apparatus
An apparatus for filtering a liquid in a tank has a plurality of elements and a frame for holding the elements while they are immersed in the liquid. The elements have a plurality of hollow fibre...
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7297270 |
Hollow fiber filter for extracorporeal blood circuit
A filter for an extracorporeal blood circuit including a bundle of hollow fibers having an end section encased in a potting material, wherein the end section of potting material has an end surface...
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7294174 |
Air dehydration membrane
An air dehydration membrane is made of a hydrophilic polymer having a permeability for water vapor which is greater than its permeability for air, and having low selectivity between oxygen and...
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7291204 |
Separation membrane module with hollow fiber and a method of making the same
A separation membrane module having hollow fibers, wherein a plurality of hollow fibers are heated and melted to bond and thermally fuse the external surfaces of the hollow fibers with each other;...
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7290667 |
Microfluidic sieve using intertwined, free-standing carbon nanotube mesh as active medium
A microfluidic sieve having a substrate with a microfluidic channel, and a carbon nanotube mesh. The carbon nanotube mesh is formed from a plurality of intertwined free-standing carbon nanotubes...
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7264725 |
Hollow fiber membrane contactor and method of making same
The instant invention is a hollow fiber membrane contactor, and method of making same. The hollow fiber membrane contactor includes (1) a shell, said shell having a internal bonding surface, an...
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7264716 |
Membrane filtration manifold system
A membrane filtration manifold for connecting a filter submodule including one or more elongate bundles of semipermeable polymeric fibers is provided. The manifold includes a housing and connecting...
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7258914 |
Porous membrane and method for manufacturing the same
The object of the present invention is to provide a porous membrane having a high strength and excellent water permeability and rejection properties. The porous membrane of the present invention...
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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...
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7255788 |
Catchment header and membrane module unit
A catchment header allowing a plurality of membrane modules to be connected thereto, having a tubular catchment part with a Young's modulus of 4.0 GPa or less for collecting and taking out...
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7250108 |
Method for measuring the local hydraulic permeability of a sub-group of hollow fibre of a bundle of hollow fibres
A method is provided for measuring the local hydraulic permeability, Lpi, of a sub-group of hollow fibres of a bundle of hollow fibres mounted in a tubular casing. The method comprises a step of...
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7229580 |
Preparation of porous poly(aryl ether) articles and use thereof
The preparation and use of novel porous poly(aryl ether) articles is disclosed. The porous articles are prepared from blends of poly(aryl ether) polymers with polyimides by selectively decomposing...
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7226541 |
Membrane polymer compositions
The invention relates to a terpolymer of tetrafluoroethylene (TFE) monomer, polyvinylidene fluoride (PVDF) monomer and hexafluoropropylene (HFP) monomer for forming an ultrafiltration or...
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7223339 |
Hollow-fiber membrane module
This invention provides an inexpensive hollow-fiber membrane module that can prevent diaphragms from peeling or coming off from the cylindrical casing. The invention includes a hollow-fiber...
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7217364 |
Filtering device and a filtering device housing
A filter device has a housing in the shape of a tubular section, with at least two chambers separated from one another by membranes, and with at least one connection for each flow chamber. The...
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7211189 |
Separation column from chromatography, medium for solid phase extraction and sample injection system for chromatography
A separation column for chromatography or a medium for solid phase extraction, which comprises a hollow capillary and a collected body packed in the hollow capillary and serving as a stationary...
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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...
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7195711 |
Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration
An in-vivo plasmapheresis and/or in-vivo ultrafiltration membrane comprises elongated hollow fibers each fiber having an interior lumen extending along the fiber length, the fiber wall having a...
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7189321 |
Fluid treatment module having hollow membranes
The invention relates to a hollow membrane ( 11 ) comprising two support layers arranged one above the other forming a space between them and a plurality of capillary tubes arranged between the...
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7182894 |
Process for the preparation of free standing membranes
The invention discloses a method for synthesizing hollow structured freestanding membrane having pore size of 2 to 200 nm which provides long-term stability that makes it viable for many practical...
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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...
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7166212 |
Multicapillary column for chromatography and sample preparation
A multicapillary column especially useful for liquid chromatography and sample preparation comprising a plurality of uniform capillaries coated with an insoluble stationary phase, wherein the...
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7160463 |
Methods of minimizing the effect of integrity loss in hollow fibre membrane modules
A method and apparatus for reducing the effect of integrity loss in a hollow fiber membrane module, said module including a plurality of hollow fiber membranes ( 5 ), at least one end of the fiber...
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7160455 |
Hollow fiber membrane module
A hollow fiber membrane module comprising a module housing, a hollow fiber membrane bundle comprising a plurality of hollow fiber membranes, at least one end portion of the bundle being fixed on...
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7160454 |
Membrane filter for water treatment
The invention relates to a membrane filter for water treatment, comprising a head piece including a permeate collecting chamber with a permeate outlet, and at least one fiber bundle made from...
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7144505 |
Melt-spun polysulfone semipermeable membranes and methods for making the same
The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the...
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7128861 |
Method for producing hollow yarn film
In a method for producing hollow fiber membranes which comprises melt kneading a mixture comprising polyvinylidene fluoride and an organic liquid or a mixture comprising polyvinylidene fluoride, an...
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7128837 |
Hollow fiber membrane module
The present invention relates to hollow fiber membrane modules for use as “immersion modules” in filtration and/or dialysis methods, in particular whenever impairments due to fouling effects...
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7122121 |
Advanced submerged membrane modules, systems and processes
Advanced submerged membrane systems are provided. Said submerged membrane systems have multiple membrane modules comprising of strips of flat sheet membrane, bundles of self-support hollow fiber...
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7108787 |
Modified hollow-fiber membrane
A modified hollow-fiber membrane which has improved surface hydrophilicity without increasing the amount of components released therefrom, is less apt to interact with living-body components, does...
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RE39294 |
Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate
A vertical skein of “fibers”, opposed terminal portions of which are held in headers unconfined in a modular shell, is aerated with a gas-distribution means which produces a mass of bubbles...
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7094348 |
Dialyzer and method for manufacturing the same
A dialyzer in which a nearly cylindrical case is provided therein with a hollow fiber bundle made of a plurality of hollow fiber membranes, a blood flow path formed by lumens of the hollow fiber...
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7087168 |
Hollow fiber membrane for purifying blood
It is intended to provide a blood purification membrane having excellent performance and showing little elution of blood and little adhesion of blood proteins or platelets. The above object can be...
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7083726 |
Hollow thread film cartridge, hollow thread film module using the cartridge, and tank type filter
A hollow fiber membrane cartridge wherein a cartridge head and a bottom ring are connected and fixed to each other by means of a plurality of rods or pipes, the hollow portion at the end of each...
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7077939 |
Method and apparatus for nanoparticle transport and detection
According to one embodiment an apparatus includes a membrane and at least a portion of a nanotube imbedded within the membrane. The portion of the nanotube imbedded within the membrane provides a...
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7070721 |
Method of making and using a hollow fiber microfiltration membrane
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,...
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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...
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