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7381331 |
Hydrophilic membrane and associated method
A membrane is provided, which may include a microporous base membrane; and a cross-linkable coating disposed on a surface of the membrane. The coating may include polyvinyl nucleophilic polymer and...
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7378020 |
Fluoropolymer membrane
A porous fluoropolymer membrane comprising a first surface, a second surface, nodes and free fibrils, wherein one of the first and second surfaces has a greater number of free fibrils per unit area...
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7374680 |
Filtration matrix
The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent...
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7374679 |
Asymmetric porous polytetrafluoroethylene membrane for a filter
The present invention provides an asymmetric porous PTFE membrane for a filter having little change over time and conventionally known properties of a porous PTFE molded article such as water...
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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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7368056 |
Production of potable liquids
Water-desalination and/or water purification devices. Alternatively, devices that are implantable in animal bodies, possibly configured as self-inflating spinal disc prostheses. The devices include...
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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...
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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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7361277 |
Biological fluid filter and system
A filter device ( 100 ) comprising a filter ( 10 ) for producing a leukocyte-depleted plasma-rich fluid is disclosed.
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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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7347938 |
Use of hydrophobically modified copolymers based on N-vinyl monomers for the production of membranes
The present invention relates to the use of copolymers A containing
a) from 50 to 99% by weight of at least one N-vinyllactam or N-vinylamine selected from the group consisting of...
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7311832 |
Adsorption membranes, method of producing same and equipment, including the adsorption membranes
The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method...
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7309458 |
Multi-sided immersion formation of composite structures and method
Sample preparation device and method for desalting and concentrating samples prior to further analysis such as by MALDI TOF and/or electro-spray ionization (ESI) mass spectrometry. The device in...
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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...
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7279096 |
Polymer based permeable membrane for removal of ions
Molecularly imprinted polymer membranes for selectively collecting phosphate, nitrate and ferric ions are disclosed, prepared by copolymerizing a matrix monomer, cross-linking agent, ion imprinting...
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7273551 |
Functionalized polyimide molded body and functionalized polyimide membrane
In a polyimide molded body, in particular a polyimide membrane which is functionalized with a chemical group and a method for production thereof, a molded body or membrane is obtained, whereby a...
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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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7247238 |
Poly(ethylene chlorotrifluoroethylene) membranes
Porous polymeric membranes including Halar (poly (ethylene chlorotrifluoroethylene)) and related compounds and the methods of production thereof which avoid the use of toxic solvents. Preferred...
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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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7229556 |
Delivery system for a composition
Devices and methods for cutaneous delivery of a composition are provided, wherein the composition is passed through an ordered nanoporous membrane in fluid communication with a reservoir. The...
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7229553 |
Method for producing a membrane made of bridged polymer and a fuel cell
Method for producing a membrane made of bridged polymer and a fuel cell. The present invention relates to a membrane comprising a bridged polymer which is produced by a selected process. The...
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7226978 |
Techniques to improve polyurethane membranes for implantable glucose sensors
The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the...
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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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7208089 |
Biomimetic membranes
Biological membrane proteins are incorporated into a co-polymer matrix to produce membranes with a wide variety of functionalities. In one form of the invention, a composite membrane incorporates...
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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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7195835 |
Proton conducting membrane for fuel cells
An ion conducting membrane comprising dendrimeric polymers covalently linked into a network structure. The dendrimeric polymers have acid functional terminal groups and may be covalently linked via...
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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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7169304 |
Porous polymer water filter and methods of use in refrigeration
The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent...
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7169213 |
Multi-channel cross-flow porous device
A multi-channel modular device ( 10 ) processes between two fluid streams of different compositions. The device ( 10 ) includes a porous body ( 150 ) having a first plurality of feed-flow pathways...
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7160575 |
Conducting polymer
Measurement in the frequency range 3 mHz–106 Hz of the dielectric characteristics of emeraldine base polyaniline dissolved in 1-methyl-2-pyrrolidinone (NMP) and cast into bulk free-standing...
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7147813 |
Neovascularization promoting membrane for bioimplants
A method of addressing a condition of a living body comprising the steps of using an energy beam to form a set of pores in a work piece biocompatible membrane. The pores should have a mean area of...
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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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7141168 |
Porous polyolefin membrane
The purpose of the invention is to provide a porous polyolefin membrane consistent with a simple composition that may be characterized by a small pore diameter and a high porosity by simplifying...
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7140497 |
Selective deleukocytation unit for a platelet product
The invention includes a filtration unit for the selective deleukocytation of a fluid containing blood platelets such as blood or a blood component. The unit includes a medium for deleukocytation...
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7140496 |
Multilayer microporous membrane
A multilayer microporous membrane containing a thermoplastic resin, comprising a coarse structure layer with a higher open pore ratio and a fine structure layer with a lower open pore ratio,...
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7112280 |
Gas porous polymer filter and methods of use
The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent...
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7094349 |
Organic porous article having selective adsorption ability for boron, and boron removing module and ultra-pure water production apparatus using the same
An organic porous material having selective adsorption ability for boron, characterized in that it has an open cell structure comprising macro pores jointed to one another and, formed within the...
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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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7083729 |
Device and method for cleaning a fluid, such as water
A device for cleaning a fluid comprises at least one set of a first membrane cloth and a second membrane cloth, each being permeable to water over substantially their entire length. The membrane...
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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...
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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...
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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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7052793 |
Composite solid polymer electrolyte membranes
The present invention relates to composite solid polymer electrolyte membranes (SPEMs) which include a porous polymer substrate interpenetrated with an ion-conducting material. SPEMs of the present...
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7051883 |
Wetlaid-spunbond laminate membrane support
Nonwoven fabric laminates suitable for use as semipermeable membrane supports are provided. The fabric laminates generally include at least two layers: a spunbond layer of continuous filament...
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7037425 |
Mesoporous membrane collector and separator for airborne pathogen detection
A process and apparatus for the collection of biological materials from air. Collection and separation devices utilize a novel membrane structure formed from a functionalized inorganic mesoporous...
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6994789 |
Pre-metered, unsupported multilayer microporous membrane
An at least two layer, unsupported, continuous microporous membrane is disclosed. The at least two layer, unsupported, continuous microporous membrane may include at least two different membrane...
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6994788 |
Sulfonated aromatic polymers, membrane containing said polymers and a method for production and use of the same
A sulfonated aromatic polymer comprising the repeating structural unit of the formula I
—O—Ar 1 (SO 3 R) n —C(CF 3 ) 2 —Ar 1 (SO...
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6984322 |
Voided polyester film
The present invention relates to a biaxially stretched, laminated, white microporous polyester film, which can be used in a wide range of industrial applications including printing, imaging,...
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6977043 |
Skinned hollow fiber membrane and method of manufacture
Hollow fiber membranes having a skinned surface on one diameter, and a porous surface on the opposite diameter are produced from perfluorinated thermoplastic polymers by extruding a heated solution...
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6908553 |
Composite membrane with particulate matter substantially immobilized therein
Membranes and methods for making membranes are disclosed. The membranes include a polymeric matrix and a particulate material immobilized within the matrix. The membranes may find particular...
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