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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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7445735 |
Method of making 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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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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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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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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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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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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7182895 |
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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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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7128856 |
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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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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7122139 |
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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7122138 |
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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7118695 |
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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7115222 |
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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7097793 |
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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7097792 |
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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7083750 |
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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7083749 |
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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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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6939468 |
Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters
The present invention relates to the field of synthetic polymeric microfiltration membrane materials that are fabricated to separate liquids from solids contained therein. One aspect of the...
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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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6824716 |
Process for producing porous polymer materials
A process for producing porous polymer material. The method combines a polymer and water-soluble granules to form a mixture. The mixture is placed into a mold; the surface of the polymer is...
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6733715 |
Fabrication of hollow ceramics fibers using unidirectionally oriented organic fibers prearranged based on electrostatic means
A method of manufacturing hollow ceramics fibers with the pores of the micron-scale hollow structure unidirectionally oriented, the method of manufacturing is characterized in the steps of...
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6702965 |
Method of forming a porous composite product, in particular with a high specific surface
A process for the preparation of a porous composite product. The process steps are forming a homogeneous mixture having one or more insoluble polymers, one or more soluble or calcinable polymers...
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6673285 |
Reverse fabrication of porous materials
3-D biodegradable porous, polymer (natural or synthetic) scaffolds with well-controlled, interconnected pores, and method for forming the porous materials. Hydrophilic and/or hydrophobic porogen...
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6652751 |
Intrinsically bacteriostatic membranes and systems for water purification
The invention disclosed relates to intrinsically bacteriostatic synthetic polymer membranes, and to process for the manufacture thereof. In one embodiment, bacteriostatic metal ions are attached to...
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6635204 |
Process of making hollow fibers and treating fibers
The present invention provides a hollow fiber, which includes: at least one thermoplastic polymer with an equilibrium water content of 2% or less; wherein the number of hollow portions (α 1 ) and...
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6596167 |
Hydrophilic hollow fiber ultrafiltration membranes that include a hydrophobic polymer and a method of making these membranes
A hydrophilic membrane that includes a hydrophobic polymer and a water-soluble polymer-metal complex is provided. This membrane is made by heating a mixture of a hydrophobic polymer, a metal...
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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...
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6495266 |
Films with improved blocking resistance and surface properties
The invention discloses methods of improving blocking resistant properties and reducing the coefficient of friction of a multilayer film comprising providing at least one layer of an...
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6495043 |
Membrane which comprises a blend of a polysulphone or a polyether sulphone and polyethylene oxide/polypropylene oxide substituted ethylene diamine
A membrane which can be used in membrane filtration processes and which has a reduced tendency to fouling is a polysulphone or a plyether sulphone and a polyethylene oxide/polypropylene oxide...
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6464873 |
Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
Selective, water-permeable membranes for reverse osmosis and nanofiltration are prepared by interfacially polymerizing on a microporous support an essentially monomeric bipiperidine reactant, and...
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6447701 |
Method for producing porous structures
A method for producing porous structures in which a liquid or pasty mixture of substances is brought at least partially to solidification and subsequently freeze-dried.
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6440306 |
Large pore synthetic polymer membranes
Highly asymmetric polymeric membranes with large pores which yield bubble points in the range of 0.5 to 25 psid and superior flow characteristics. The membranes can be cast from both metastable...
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