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8173021 |
Method for the preparation of sulfated cellulose membranes and sulfated cellulose membranes
The present invention relates to methods for the preparation of functionalized sulfated cellulose membranes. In particular, the present invention relates to the preparation of sulfated cellulose...
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8147735 |
Semipermeable polymers and method for producing same
A polyamide membrane comprising reaction product of an anhydrous solution comprising an anhydrous solvent, at least one polyfunctional secondary amine and a pre-polymer deposition catalyst; and an...
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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 a...
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8132676 |
Hydrophilic, high protein binding, low fluorescence, western blotting membrane
Hydrophilic membrane particularly suited for blotting applications, preferably Western blotting. A pre-wet hydrophobic membrane substrate, preferably made of PVDF, is contacted with a monomer...
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8092581 |
Gas separation membrane
A gas separation membrane has: a polymeric microporous membrane which has a polyolefin as a main component, and which is manufactured by wet phase separation process, and has a porosity of 20 to...
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8092918 |
Polyamide matrices and methods for their preparation and use
The invention provides novel polymer matrices and methods for preparing polymer matrices, as well as methods for purifying caustic feed streams using membranes that comprise polysulfonamide matrices.
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8075904 |
High aspect ratio template and method for producing same for central and peripheral nerve repair
Millimeter to nano-scale structures manufactured using a multi-component polymer fiber matrix are disclosed. The use of dissimilar polymers allows the selective dissolution of the polymers at...
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8057890 |
Composite of aluminum alloy and resin and manufacturing method thereof
The surface of an aluminum alloy shaped product is covered with ultrafine recesses by being dipped in an eroding aqueous solution, or has formed thereon a metal oxide layer covered with the...
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8048348 |
Shape memory polyurethane foam for downhole sand control filtration devices
Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell...
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8034301 |
Test paper and porous membrane
A test paper includes a porous membrane capable of separating an object that should be filtered out of a sample by filtration, the porous membrane carrying a reagent capable of reacting with a...
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8017050 |
Water purification membranes with improved fouling resistance
The present invention includes methods and compositions for liquid separation and water purification. The present invention includes a purification membrane having a polymer matrix purification...
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8011517 |
Composite membranes with performance enhancing layers
A composite membrane includes a filtration membrane with a surface; and a layer on the surface of the filtration membrane. The layer includes a polymer including a poly(ethylene glycol) moiety...
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7998313 |
Inflated fibers of regenerated cellulose formed from ionic liquid/cellulose dope and related products
Inflated fibers of regenerated cellulose and other regenerated structures are formed from ionic liquid/cellulose dope. Fibers so produced may be incorporated into absorbent sheet with other...
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7998380 |
Method of fabricating a tissue engineering scaffold
A method of fabricating a highly porous structure is provided. The method includes the step of compounding a biodegradable polymer, a water-soluble polymer and a porogen to form a composite blend....
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7993738 |
Modified porous materials and method of forming the same
Modified porous materials are disclosed having interconnected, complexly shaped three-dimensional surfaces. The modification is accomplished by crosslinking the three-dimensional surfaces or by...
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7988891 |
Monopersulfate treatment of membranes
A method of improving the water permeability and/or cleaning a porous polymeric microfiltration or ultrafiltration membrane, preferably a hydrophobic/hydrophilic blended membrane, eg P VdF/PVP...
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7968153 |
Continuous method for production of a regioselective porous hollow fibre membrane
A continuous method for production of a porous hollow fibre membrane having regioselective affinity for compounds in blood or other biologically active fluids to be removed during purification of...
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7942274 |
High-throughput asymmetric membrane
A microporous asymmetrical membrane formed of one or more layers wherein the “tight” side of the membrane has an “opened” face or otherwise highly-porous reticulated surface is described. The mic...
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7931154 |
Plasma separation membrane
A process for manufacturing of an asymmetric hollow fiber membrane, comprising the steps of extruding a polymer solution through the outer ring slit of a hollow fiber spinning nozzle,...
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7913857 |
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...
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7909179 |
Modified polyamide matrices and methods for their preparation
The invention provides novel polymer matrices and methods for preparing polymer matrices.
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7901602 |
Expandable styrene-modified olefin resin particle, pre-expanded particle, and process for producing molded foam
According to the present invention, there is provided a method for producing expandable styrene-modified olefin-based resin particles comprising steps of: impregnating styrene-modified olefin-based...
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7901603 |
Process for producing adhesive polymeric articles from expanded foam materials
Herein is disclosed a method for modifying the surface adhesion characteristics of expanded foams and beads or other expanded structures or components formed therefrom, whereby the expanded foams...
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7854871 |
Method for producing polyolefin-based resin crosslinked foamed sheet and polyolefin-based resin crosslinked foamed sheet
The present invention provides a method for producing a polyolefin-based resin crosslinked foamed sheet which is excellent in heat resistance and flexibility, has a small diameter of cells, can be...
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7850882 |
Process for making integrated layered urethane products
Polyurethane shapes containing a core layer of a water soluble polymer such as polyethylene oxide (PEO) are produced by casting onto a surface an aqueous mixture containing a pre-polymer of a...
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7837913 |
High aspect ratio template and method for producing same
Millimeter to nano-scale structures manufactured using a multi-component polymer fiber matrix are disclosed. The use of dissimilar polymers allows the selective dissolution of the polymers at...
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7820093 |
Method for processing stamp material
A method for processing a stamp material generally includes: heating one of a pressing member and a surface layer of the stamp material; pressing the surface layer of the stamp material using the...
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7811504 |
Molded product and method of manufacturing the same
A molded product includes a matrix formed of a polymer material and a plurality of capsules dispersed in the matrix. An unevenness is formed on a surface due to expansion of the capsules. Some of...
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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 a...
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7767004 |
Functionalized adsorbent for removal of acid gases and use thereof
The present invention provides a functionalized adsorbent for removal of acid gases, which comprises a pore-expanded mesoporous support having a pore volume of between 0.7 and 3.6 cc/g, a median...
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7758012 |
Die comprising small cup-type depressions
In order to produce a coating having an attractive, velvet-like or suede-like appearance for a substrate by application of a liquid plastic dispersion to the die surface 3 consisting of hydrophobic...
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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.
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7727434 |
Membranes and methods of treating membranes
Membranes as well as a methods of treating membranes are disclosed. The method of treating a membrane includes contacting the membrane with a first solvent, contacting the membrane with an inert...
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7717273 |
Membrane surface modification by radiation-induced polymerization
The invention provides porous membranes with at least a partially modified surface as well as methods of making and using the same.
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7708150 |
Process for preparing semipermeable membranes
The invention provides methods for preparing reverse osmosis membranes having improved permeability as well as membranes prepared by such methods.
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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) membranes...
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7658872 |
Process for preparing semipermeable membranes having improved permeability
The invention provides methods for preparing reverse osmosis membranes having improved permeability as well as membranes prepared by such methods.
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7641054 |
Composite semipermeable membrane, production process thereof, and element, fluid separation equipment and treatment method for boron-containing water using the same
A composite semipermeable membrane, which comprises a separating functional layer comprising a reactant of polyfunctional amine with polyfunctional acid halide, wherein a water-soluble organic...
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7632439 |
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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7631768 |
Membrane and associated method
Provided is a fluorine substituted oligomeric or polymeric ester including the reaction product of a fluorine substituted acrylate or a fluorine substituted methacrylate; an unsaturated anhydride;...
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7591948 |
Process for production of a regioselective membrane
A process for production of a microporous affinity membrane having regioselective affinity for compounds in blood or other biologically active fluids to be removed during purification of blood or...
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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...
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7537718 |
Hydrophilic polyethersulfone membrane and method for preparing same
The present disclosure relates to improved efficient and effective systems and methods of manufacturing hydrophilic polyethersulfone (PES) membrane suitable for commercial applications and the...
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7494610 |
Methods for fabricating zeolite micromembranes
A method of activating a zeolite membrane comprising a step of placing the membrane in contact with a fluid mixture containing ozone, wherein when the fluid mixture is a gaseous mixture, the fluid...
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7459109 |
Method for manufacturing foam pads
A method for manufacturing foam pads includes a first step of preparing a proper amount of PVC power, DOP curing agent, light calcium carbonate, kaolin, foaming agent and pigment and pouring them...
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7452491 |
Method for forming scaffolds
The present invention discloses a method for forming scaffolds. This invention provides various fixation agents for different polymers or applications, and a fixation process is performed at low...
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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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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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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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7201022 |
Systems and methods for filling voids and improving properties of porous thin films
Methods of reducing the intrusions or migrations of photolithography materials by introducing a sol-gel layer onto a porous thin film prior to applying the photolithography/photoresist material...
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