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8158248 |
Porous ceramic for slide member, method for preparing the same, and mechanical seal ring
In porous ceramic for slide member including independent pores having a pore size of 5 μm or more, the independent pore is flattened body having minor axis in a direction perpendicular to a ...
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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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8101139 |
Microcapillary networks
Devices that include hosts having internal microcapillary networks are disclosed. The microcapillary networks are formed from interconnected passageways. The interconnected passageways may be...
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8051991 |
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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7998379 |
Process for the production of porous moulded articles containing alginate
The invention relates to a process for the production of alginate-containing porous or sponge-like moulded articles, and to the moulded articles obtainable thereby and their use.
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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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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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7985339 |
Polyarylether compositions bearing zwitterion functionalities
A method for making a polysulfone having zwitterionic functionality comprising reacting a piperazine amine functionalized polysulfone with sultone is described as are blends with other polymers....
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7943678 |
Method for the preparation of new segmented polyurethanes with high tear and tensile strengths and method for making porous scaffolds
The invention presents a new method to prepare biomedical polyurethanes with high tensile and tear strengths. Such polyurethanes are especially interesting for making foams thereof, e.g. as...
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7943677 |
Method of producing interconnected volumetric porosity in materials
A method to create interconnected porosity in materials that can be poured or injected into a cast. The process allows the arrangement of interconnected volumetric porosity to be directed in...
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7909178 |
Porous membrane of vinylidene fluoride resin and process for producing the same
A porous membrane, made of polyvinylidene fluoride which is excellent in fractionating capability, permeating capability and physical strength and suitable for use in water treatment such as water...
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7901606 |
Production of porous materials by supercritical fluid processing
The present invention provides a method of producing porous structures, particles or matrixes, which may be comprised of one or a plurality of components, an apparatus for carrying out the method...
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7867417 |
Membrane post treatment
Hydrophilic porous polymeric membranes with high permeabilities, and processes for the preparation thereof are disclosed. Membranes may be prepared by including a preferably hydrophilic...
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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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7828998 |
Material having a controlled microstructure, core-shell macrostructure, and method for its fabrication
Disclosed is a method for making a material having a controlled microstructure, the method including providing particles of a ceramic mineral material, the particles having a metal oxide dopant...
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7820328 |
Electrochemical cell electrode with improved particle-to-particle contact and method of manufacturing
An electrochemical cell comprising an electrode, whether it is the cathode of a primary cell or an anode or a cathode of a secondary cell, comprised of a mixture of a robust, high temperature...
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7815826 |
Manufacturing process, such as three-dimensional printing, including solvent vapor filming and the like
Methods of manufacturing an article use three-dimensional printing for a portion of the manufacturing. Three-dimensionally printing is conducted onto a powder bed which contains both...
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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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7799251 |
Microcapillary networks
Devices that include hosts having internal microcapillary networks are disclosed. The microcapillary networks are formed from interconnected passageways. The interconnected passageways may be...
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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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7700016 |
Method and apparatus for fabricating three dimensional models
An apparatus and method for fabricating a three dimensional model from a composite model formed or a plurality of successive layers of model material and sacrificial mold material. Each successive...
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7682536 |
Method of making a microporous material
A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding...
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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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7674408 |
Channeled biomedical foams an method for producing same
The present invention provides a biomedical, biocompatible, polymeric foam scaffold suitable for use in the repair and regeneration of tissue and which contains located therein a network of,...
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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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7635513 |
Heat resistant microporous film
A heat resistant microporous membrane containing a thermoplastic resin having a crystalline melting point of 140-300° C. and having a layer structure formed in the direction of membrane thickness, ...
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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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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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7479300 |
Composite polyamide reverse osmosis membrane and method of producing the same
A composite polyamide reverse osmosis membrane and method of producing same. In a preferred embodiment, the membrane is made by coating a porous polysulfone support with an aqueous solution...
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7425288 |
Method for preparing an open porous polymer material and an open porous polymer material
A method for preparing an open pourous polymer material, comprises forming of a polymer solution, addition of a porogen to the polymer solution and precipitation with water of polymer from the...
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7393483 |
Process for production of poly(m-phenyleneisophthal-amide) porous hollow fiber membrane
A polymetaphenylene isophthalamide porous hollow fiber membrane is produced by extruding a film-forming solution comprising polymetaphenylene isophthalamide, polyvinylpyrrolidone and an inorganic...
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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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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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7276191 |
Crosslinked foam which has inner-cavity structure, and process of forming thereof
A method and device for forming a cross-linked foam and a cross-linked foam are provided. The method includes the steps of preparing at least one foaming material for cross-linked foaming, the...
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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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7241409 |
Gas permeable flexible graphite sheet material and process therefor
A process for preparing a gas permeable flexible graphite sheet is presented. The process includes providing graphite flakes; admixing the graphite flakes with a sacrificial additive to form a...
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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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7163651 |
Method for making a porous calcium phosphate article
The present invention discloses a method for making a porous calcium phosphate article including i) preparing a shaped article from a paste containing a calcium phosphate cement, a pore-forming...
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7144533 |
Microporous filter media, filtration systems containing same, and methods of making and using
The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is...
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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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7122140 |
Dual function prosthetic bone implant and method for preparing the same
The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the...
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7087200 |
Controlled local/global and micro/macro-porous 3D plastic, polymer and ceramic/cement composite scaffold fabrication and applications thereof
An indirect solid free form scaffold manufacturing technique is provided. More particularly, the present invention provides a set of molds, casting methods, mold removals, and surface modification...
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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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7060210 |
Method of processing colloidal size polytetrafluoroethylene resin particles to produce biaxially-oriented structures
This invention involves forward integration of the art paste extrusion process by adding a step to the processing sequence to change the uniaxially-oriented art form to a desirable planar...
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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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7005210 |
Flow fields for fuel cells
An improved proton exchange membrane fuel cell assembly and fuel cell stack assembly are provided for the economical and efficient production of electricity. The present invention comprises...
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6887408 |
Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof
Porous poly(aryl ether ketone) (PAEK) articles are prepared from PAEK/polyimide blends by selective chemical decomposition and subsequent removal of the polyimide phase. Porous PAEK articles...
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6881337 |
Melt-spun polysulfone semipermeable membranes and methods for making the same
The present invention discloses, inter alia, a composition useful for producing a hemogeneous, semipermeable membrane, the composition comprising (1) a polysulfone compounds, (2) a solvent, such as...
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6843945 |
In-mold coating of polymer composite parts for metallization and painting
The surface of a molded fiber reinforced polymer matrix article is prepared for subsequent metallization and painting by coating the molded article, preferably while it is still in its mold, with a...
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