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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11938. Отображено 100.
26-01-2012 дата публикации

Process to produce carbon nanotubes from microalgae

Номер: US20120020870A1
Автор: Yousef Haik
Принадлежит: UNITED ARAB EMIRATES UNIVERSITY

We disclose a process to produce carbon nanotubes from microalgae. Microalgae is been utilized for biodiesel production. The algal membrane resulted from oil extraction of microalgae is used here to produce carbon nanotubes. The process utilized for the conversion is composed of two steps, in the first step the algal membrane is converted to carbon black through a pyrolysis process in inert atmosphere, in the second step the resulted carbon black is converted to carbon nanotubes by mixing the carbon black with a fluid with known self ignition condition and subjecting the mix to said self ignition condition.

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02-02-2012 дата публикации

Aliphatic amine based nanocarbons for the absorption of carbon dioxide

Номер: US20120024153A1
Принадлежит: William Marsh Rice University

A composition of matter, and method to make same, for a nano-based material including a nanocarbon support to which is attached an aliphatic amine. In particular, the composition of matter is an aliphatic amine-nanocarbon material that includes a nanocarbon (NC) support, such as C 60 , nano-graphite, graphene, nanocarbon ribbons, graphite intercalation compounds, graphite oxide, nano-coal, nanohorns, and combinations thereof, and further includes an aliphatic amine, such as polyethyleneimine (PEI).

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09-02-2012 дата публикации

Graphene aerogels

Номер: US20120034442A1

Graphene aerogels with high conductivity and surface areas including a method for making a graphene aerogel, including the following steps: (1) preparing a reaction mixture comprising a graphene oxide suspension and at least one catalyst; (2) curing the reaction mixture to produce a wet gel; (3) drying the wet gel to produce a dry gel; and (4) pyrolyzing the dry gel to produce a graphene aerogel. Applications include electrical energy storage including batteries and supercapacitors.

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23-02-2012 дата публикации

Magnetic-core polymer-shell nanocomposites with tunable magneto-optical and/or optical properties

Номер: US20120043495A1

Methods are disclosed for synthesizing nanocomposite materials including ferromagnetic nanoparticles with polymer shells formed by controlled surface polymerization. The polymer shells prevent the nanoparticles from forming agglomerates and preserve the size dispersion of the nanoparticles. The nanocomposite particles can be further networked in suitable polymer hosts to tune mechanical, optical, and thermal properties of the final composite polymer system. An exemplary method includes forming a polymer shell on a nanoparticle surface by adding molecules of at least one monomer and optionally of at least one tethering agent to the nanoparticles, and then exposing to electromagnetic radiation at a wavelength selected to induce bonding between the nanoparticle and the molecules, to form a polymer shell bonded to the particle and optionally to a polymer host matrix. The nanocomposite materials can be used in various magneto-optic applications.

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23-02-2012 дата публикации

Sea-of-fins structure on a semiconductor substrate and method of fabrication

Номер: US20120043597A1
Принадлежит: International Business Machines Corp

A semiconductor device and a method of fabricating a semiconductor device, wherein the method comprises forming, on a substrate, a plurality of planarized fin bodies to be used for customized fin field effect transistor (FinFET) device formation; forming a nitride spacer around each of the plurality of fin bodies; forming an isolation region in between each of the fin bodies; and coating the plurality of fin bodies, the nitride spacers, and the isolation regions with a protective film. The fabricated semiconductor device is used in customized applications as a customized semiconductor device.

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23-02-2012 дата публикации

Releasable nonvolatile mass-label molecules

Номер: US20120046180A1
Принадлежит: Sequenom Inc

Releasable tag reagents for use in the detection and analysis of target molecules, particular in mass spectrometric analyses are provided. Also provided are methods of detection that employ releasable tag reagents.

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23-02-2012 дата публикации

Automated detection and counting of biomolecules using nanoparticle probes

Номер: US20120046191A1
Принадлежит: Oregon Health Science University

An apparatus and method for counting nanoparticle probes is disclosed. In one embodiment, quantum dot-tagged proteins on optically transparent membranes or slides are counted. The transparent membranes or slides are loaded onto a stage (e.g., an X-Y stage or X-Y-Z stage), which can automatically reposition the transparent membrane or slides for image capture at varying locations. A microscope can be used for providing a light source to fluoresce the nanocrystals and for providing the magnification needed for image capture. Once one or more images are captured, the nanoparticles can be automatically counted using post-processing software that maintains a total count across multiple images, if desired.

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23-02-2012 дата публикации

Glutathione-based delivery system

Номер: US20120046445A1
Принадлежит: Individual

A delivery system is provided. The delivery system includes a carrier or an active compound and a glutathione or a glutathione derivative grafted thereon. The invention also provides a compound including a moiety comprising a vitamin E derivative or a phospholipid derivative, a polyethylene glycol (PEG) or a polyethylene glycol derivative bonded thereto, and a glutathione (GSH) or a glutathione derivative bonded to the polyethylene glycol or the polyethylene glycol derivative.

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15-03-2012 дата публикации

Large Scale Patterned Growth of Aligned One-Dimensional Nanostructures

Номер: US20120061348A1
Принадлежит: Georgia Tech Research Corp

A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.

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22-03-2012 дата публикации

Induction heated member

Номер: US20120070208A1
Принадлежит: Xerox Corp

Exemplary embodiments provide an induction heating member including a substrate and a heating layer disposed on the substrate. The heating layer includes carbon nanotubes and metal. An outer layer is disposed on the heating layer and includes a fluoropolymer.

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29-03-2012 дата публикации

Alternating Bias Hot Carrier Solar Cells

Номер: US20120073657A1
Принадлежит: Ostendo Technologies Inc

Extremely high efficiency solar cells are described. Novel alternating bias schemes enhance the photovoltaic power extraction capability above the cell band-gap by enabling the extraction of hot carriers. In conventional solar cells, this alternating bias scheme has the potential of more than doubling their yielded net efficiency. In solar cells incorporating quantum wells (QWs) or quantum dots (QDs), the alternating bias scheme has the potential of extending such solar cell power extraction coverage, possibly across the entire solar spectrum, thus enabling unprecedented solar power extraction efficiency. Within such cells, a novel alternating bias scheme extends the cell energy conversion capability above the cell material band-gap while the quantum confinement structures are used to extend the cell energy conversion capability below the cell band-gap. Light confinement cavities are incorporated into the cell structure to allow the absorption of the cell internal photo emission, thus further enhancing the cell efficiency.

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05-04-2012 дата публикации

Carbon nanotube and method for producing same

Номер: US20120083408A1
Принадлежит: Dowa Holdings Co Ltd, Tohoku University NUC

There is provided a high-purity carbon nanotube, which can be produced with simple purification by causing graphite to be hardly contained in crude soot obtained immediately after being synthesized by arc-discharge, and a method for producing the same. Soot containing carbon nanotubes produced by arc-discharge using an anode which contains amorphous carbon as a main component is heated at a temperature of not lower than 350° C. to be burned and oxidized, immersed in an acid, heated at a temperature, which is not lower than the heating temperature in the previous burning and oxidation and which is not lower than 500° C., to be burned and oxidized, and immersed in an acid again.

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12-04-2012 дата публикации

Graphene-Sulfur Nanocomposites for Rechargeable Lithium-Sulfur Battery Electrodes

Номер: US20120088154A1
Принадлежит: Battelle Memorial Institute Inc

Rechargeable lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter less than 50 nm.

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19-04-2012 дата публикации

Compositions comprising a radiosensitizer and an anti-cancer agent and methods of uses thereof

Номер: US20120093918A1
Принадлежит: SOCPRA Sciences Sante et Humaines sec

A combination of an anti-cancer agent and a metal radiosensitizer potentiates the radiotherapy of cancer. Said anti-cancer agent is preferably cisplatin while the metal radiosensitizer is preferably gold nanoparticles. Both the anti-cancer agent and the metal radiosensitizer bind to DNA and potentiate the radiotherapy of cancer by synergistically increases the amount of double strand breaks induced by the radiation. The anti-cancer agent and the metal radiosensitizer may be encapsulated in liposomes.

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03-05-2012 дата публикации

Method of Selective Separation Of Semiconducting Carbon Nanotubes, Dispersion Of Semiconducting Carbon Nanotubes, And Electronic Device Including Carbon Nanotubes Separated By Using The Method

Номер: US20120104328A1

According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.

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03-05-2012 дата публикации

Phase-change memory device

Номер: US20120106244A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A phase-change memory device and its firing method are provided. The firing method of the phase-change memory device includes applying a writing current to phase-change memory cells, identifying a state of the phase-change memory cells after applying the writing current, and applying a firing current, in which an additional current is added to the writing current, to the phase-change memory cells in accordance with the state.

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10-05-2012 дата публикации

Novel combination catalysts based on iron for the substantial synthesis of multi-walled carbon nanotubes by chemical vapor deposition

Номер: US20120114550A1

Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.

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17-05-2012 дата публикации

Small interfering rna delivery

Номер: US20120121689A1
Принадлежит: Lipoxen Technologies Ltd

A liposomal siRNA composition is described. The liposomes are formed of neutral liposome forming components, and the composition comprising additionally sugar. The composition provides reduced expression of target gene, without causing systemic toxicity. The composition is produced by a dehydration-rehydration technique to provide high yields and good control of liposome size.

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31-05-2012 дата публикации

Conductive polymer-carbon nanotube composite and manufacturing method thereof

Номер: US20120132863A1
Принадлежит: SNU R&DB FOUNDATION

Provided are a conductive polymer-carbon nanotube composite including a carbon nanotube and a conductive polymer filled therein, and a method of manufacturing the same. The conductive polymer-carbon nanotube composite where a conductive polymer is filled in a carbon nanotube is manufactured by introducing a monomer of the conductive polymer into the carbon nanotube using a supercritical fluid technique and polymerizing the monomer. The conductive polymer-carbon nanotube composite is a novel nano-structure material which can overcome limitations that conventional materials may have, and thus can be applied to various applications such as sensors, electrode materials, nanoelectronic materials, etc.

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07-06-2012 дата публикации

Aptamer bioconjugate drug delivery device

Номер: US20120141551A1
Принадлежит: Ecosynthetix Ltd

A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.

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14-06-2012 дата публикации

Embedded nanoparticle films and method for their formation in selective areas on a surface

Номер: US20120148474A1
Принадлежит: International Business Machines Corp

The invention is directed to a method of positioning nanoparticles on a patterned substrate. The method comprises providing a patterned substrate with selectively positioned recesses, and applying a solution or suspension of nanoparticles to the patterned substrate to form a wetted substrate. A wiper member is dragged across the surface of the wetted substrate to remove a portion of the applied nanoparticles from the wetted substrate, and leaving a substantial number of the remaining portion of the applied nanoparticles disposed in the selectively positioned recesses of the substrate. The invention is also directed to a method of making carbon nanotubes from the positioned nanoparticles.

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14-06-2012 дата публикации

Method for making populations of defined nucleic acid molecules

Номер: US20120149602A1

The present invention provides methods of making a population of nucleic acid molecules, wherein each nucleic acid molecule comprises a predetermined nucleic acid sequence, each of said methods comprising the steps of: (a) synthesizing, on a substrate, a population of nucleic acid molecules wherein: i) each synthesized nucleic acid molecule comprises a predetermined nucleic acid sequence; and ii) each synthesized nucleic acid molecule is localized to a defined area of said substrate; (b) harvesting said population of synthesized nucleic acid molecules from said substrate to yield harvested nucleic acid molecules; and (c) introducing said harvested nucleic acid molecules into vector molecules.

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28-06-2012 дата публикации

Separation of carbon nanotubes into chirally enriched fractions

Номер: US20120160366A1
Принадлежит: Los Alamos National Security LLC

A mixture of single-walled carbon nanotubes (“SWNTs”) is separated into fractions of enriched chirality by preparing an aqueous suspension of a mixture of SWNTs and a surfactant, injecting a portion of the suspension on a column of separation medium having a density gradient, and centrifuging the column. In some embodiments, salt is added prior to centrifugation. In other embodiments, the centrifugation is performed at a temperature below room temperature. Fractions separate as colored bands in the column. The diameter of the separated SWNTs decreases with increasing density along the gradient of the column. The colored bands can be withdrawn separately from the column.

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12-07-2012 дата публикации

Novel combination catalysts based on iron for the substantial synthesis of multi-walled carbon nanotubes by chemical vapor deposition

Номер: US20120177545A1

Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.

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26-07-2012 дата публикации

Optical materials, optical components, and methods

Номер: US20120187367A1
Принадлежит: QD Vision Inc

An optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state. Further disclosed is an optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state, and wherein the optical material is at least partially encapsulated. Methods, optical materials, and devices are also disclosed.

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26-07-2012 дата публикации

Acoustically sensitive drug delivery particles comprising non-lamellar forming phosphatidylcholine

Номер: US20120189689A1
Принадлежит: EPITARGET AS

Novel acoustically sensitive drug carrying particles comprising non-lamellar forming lipids are disclosed, as well as uses and methods thereof. The drug carrying particles accumulate in the diseased target tissue and efficiently release their payload upon exposure to acoustic energy.

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02-08-2012 дата публикации

Electron beam sculpting of tunneling junction for nanopore dna sequencing

Номер: US20120193236A1
Принадлежит: International Business Machines Corp

A nanodevice is provided that includes a reservoir filled with a conductive fluid and a membrane separating the reservoir. The membrane includes an electrode layer having a tunneling junction formed therein. A nanopore is formed through the membrane, and the nanopore is formed through other layers of the membrane such that the nanopore is aligned with the tunneling junction of the electrode layer. When a voltage is applied to the electrode layer, a tunneling current is generated by a base in the tunneling junction to be measured as a signature for distinguishing the base. When an organic coating is formed on an inside surface of the tunneling junction, transient bonds are formed between the electrode layer and the base.

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02-08-2012 дата публикации

Polymeric dye for optical power limiting

Номер: US20120194932A1
Принадлежит: Oxazogen Inc

This invention concerns a polymer coating composition for use as non-focal optical power limiting dye containing polymeric materials. This composition contains: (1) one or more Modified Polymers comprising a Polymer, such as a hyperbranched polymer family, especially HB—PCS, HB—PU, HB—PUSOX or PC with one or more of: a) reverse saturable dye (RSA), b) multi-photon absorption dye (MPA), c) an azo dye, or d) absorption dye, which dye is chemically bonded to the pendant groups of the Polymer (along its chain and/or termini) or which forms a part of the backbone of the Polymer; (2) carbon nanotubes (CNT) as optical power limiters (OPL); and (3) a self-focusing component. This Modified Polymer composition contains the dye incorporated into the polymer chain backbone or chemically bonded to the terminal groups at the ends or along the chain of the polymer, which provides efficient protection from laser beam damage along with its self-focusing mechanism.

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02-08-2012 дата публикации

Therapeutic Inhibitor of Vascular Smooth Muscle Cells

Номер: US20120195951A1
Принадлежит: Individual

Methods are provided for inhibiting stenosis following vascular trauma or disease in a mammalian host, comprising administering to the host a therapeutically effective dosage of a therapeutic conjugate containing a vascular smooth muscle binding protein that associates in a specific manner with a cell surface of the vascular smooth muscle cell, coupled to a therapeutic agent dosage form that inhibits a cellular activity of the muscle cell. Methods are also provided for the direct and/or targeted delivery of therapeutic agents to vascular smooth muscle cells that cause a dilation and fixation of the vascular lumen by inhibiting smooth muscle cell contraction, thereby constituting a biological stent.

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23-08-2012 дата публикации

Method of producing nanopatterned articles, and articles produced thereby

Номер: US20120211871A1
Принадлежит: Individual

A nanopatterned surface is prepared by forming a block copolymer film on a miscut crystalline substrate, annealing the block copolymer film, then reconstructing the surface of the annealed block copolymer film The method creates a well-ordered array of voids in the block copolymer film that is maintained over a large area. The nanopatterned block copolymer films can be used in a variety of different applications, including the fabrication of high density data storage media.

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30-08-2012 дата публикации

Heat radiation material, electronic device and method of manufacturing electronic device

Номер: US20120218713A1
Принадлежит: Fujitsu Ltd

The electronic device includes a heat generator 54, a heat radiator 58, and a heat radiation material 56 disposed between the heat generator 54 and the heat radiator 58 and including a plurality of linear structures 12 of carbon atoms and a filling layer 14 formed of a thermoplastic resin and disposed between the plurality of linear structures 12.

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30-08-2012 дата публикации

Immunologically modified carbon nanotubes for cancer treatment

Номер: US20120220921A1
Автор: Wei R. Chen
Принадлежит: University of Central Oklahoma

A method for constructing a compound of immunologically modified nanotubes and method for using the compound to deliver immunoadjuvants to tumor cells and to produce targeted, synergistic photophysical and immunological reactions for cancer treatment. To prepare the immunologically modified nanotubes, carbon nanotubes are dissolved in a solution of glycated chitosan, an immunostimulant, hence using glycated chitosan as a surfactant for rendering the aqueous solution of nanotubes stable. The compound can be used for treatment of cancer. The method includes steps of intratumorally administering immunologically modified nanotubes and administering laser irradiation of the target tumor. The nanotube serves as a carrier to deliver immunoadjuvants to the tumor cells and serves as a light-absorbing agent in a cell body of a tumor in a host. Upon laser irradiation of target tumor cells, immunologically modified nanotubes inside the tumor cells can produce spatially and temporally synchronized photothermal and immunological reactions for cancer treatment.

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13-09-2012 дата публикации

Methods for fabricating polymer-bioceramic composite implantable medical devices

Номер: US20120228810A1
Автор: Bin Huang, David C. Gale
Принадлежит: Advanced Cardiovascular Systems Inc

Methods relating to polymer-bioceramic composite implantable medical devices are disclosed.

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13-09-2012 дата публикации

Polymersomes And Production Method Thereof

Номер: US20120231055A1
Принадлежит: Shiseido Co Ltd

It is an object of the invention to provide a polymersome excellent in the safety and feeling in use; in particular, there is no sticky feeling but there is a good refreshing feeling; and with excellent base-agent stability. A polymersome of the present invention comprises a block-type alkylene oxide derivative represented by the following formula (I) as the membrane component: R 1 O-[(EO) I (AO) m (EO) n ]-R 2   (I) wherein AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, m and 1+n are the average addition mole numbers for the oxyalkylene group and the oxyethylene group, respectively, and 1≦m≦70, 1≦1+n≦70; the percentage of the oxyethylene groups with respect to the sum of the oxyalkylene groups having 3 to 4 carbon atoms and the oxyethylene groups is 20 to 80 mass %; the addition pattern of the oxyalkylene groups having 3 to 4 carbon atoms and the oxyethylene groups is block-type; and R 1 and R 2 are identical or different hydrocarbon groups having 1 to 4 carbon atoms.

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13-09-2012 дата публикации

Systems and methods for high-throughput detection of an analyte in a sample

Номер: US20120231960A1
Принадлежит: MagArray Inc

Provided are high-throughput detection systems. The systems include a magnetic sensor device, a magnetic field source and a reservoir plate that includes a plurality of fluid reservoirs. The magnetic sensor device includes a support with two or more elongated regions each having a magnetic sensor array disposed at a distal end. Also provided are methods in which the subject high-throughput detection systems find use.

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27-09-2012 дата публикации

Gain-clamped semiconductor optical amplifiers

Номер: US20120243075A1
Принадлежит: Individual

A gain-clamped semiconductor optical amplifier comprises: at least one first surface; at least one second surface, each second surface facing and electrically isolated from a respective first surface; a plurality of nanowires connecting each opposing pair of the first and second surfaces in a bridging configuration; and a signal waveguide overlapping the nanowires such that an optical signal traveling along the signal waveguide is amplified by energy provided by electrical excitation of the nanowires.

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27-09-2012 дата публикации

Nanohybrid nitrogen monoxide detecting sensor and a production method therefor

Номер: US20120244626A1

The present invention provides a nanohybrid type nitrogen monoxide detecting sensor and a production method therefor in which the nanohybrid type nitrogen monoxide detecting sensor includes a fluorescent semiconducting quantum dot and a transition metal compound. Employing a nanohybrid structure including semiconducting quantum dot nano-particles combined with a molecule recognizer selectively looming a bonding to nitrogen monoxide, the nitrogen monoxide detecting sensor is enabled to detect an infinitesimal amount of nitrogen monoxide by bringing about photoluminescence upon detection of nitrogen monoxide.

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11-10-2012 дата публикации

Fuser member having composite outer layer

Номер: US20120257914A1
Принадлежит: Xerox Corp

Exemplary embodiments provide composite materials used for fixing members that can include silsesquioxane-based particles and/or carbon nanotubes dispersed in a polymer matrix.

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18-10-2012 дата публикации

Fiber reinforced polymeric composites with tailorable electrical resistivities and process for preparing the same

Номер: US20120261623A1

The present invention relates to polymer composite materials, more particularly relates to composite materials with tailor made surface electrical resistivities in the range of 10 9 to 10 −1 Ω/sq. and process of making the same. The process for preparing Fibre Reinforced Polymeric (FRP) Composite, said process comprising acts of homogeneously mixing 1-30% by weight of different electrically conducting fillers in matrix resin system to obtain resin mix; wetting dry preforms using the resin mix; compacting the wetted preforms to obtain green composite; curing the green composite; and post-curing the cured composite to prepare the FRP Composite.

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01-11-2012 дата публикации

Drug Loaded Polymeric Nanoparticles and Methods of Making and Using Same

Номер: US20120276162A1
Принадлежит: Individual

The present disclosure generally relates to nanoparticles having about 0.2 to about 35 weight percent of a therapeutic agent; and about 10 to about 99 weight percent of biocompatible polymer such as a diblock poly(lactic) acid-poly(ethylene)glycol. Other aspects of the invention include methods of making such nanoparticles.

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01-11-2012 дата публикации

Porous medium with increased hydrophobicity and method of manufacturing the same

Номер: US20120276335A1

The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

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13-12-2012 дата публикации

Receptor-catalyst growth process for carbon nanotubes

Номер: US20120315467A1
Принадлежит: University of Dayton

A method of growing carbon nanomaterials on a substrate wherein the substrate is exposed to an oxidizing gas; a seed material is deposited on the substrate to form a receptor for a catalyst on the surface of said substrate; a catalyst is deposited on the seed material by exposing the receptor on the surface of the substrate to a vapor of the catalyst; and substrate is subjected to chemical vapor deposition in a carbon containing gas to grow carbon nanomaterial on the substrate.

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20-12-2012 дата публикации

Electrodes, lithium-ion batteries, and methods of making and using same

Номер: US20120321959A1

Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.

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27-12-2012 дата публикации

Graphene nanoplatelet metal matrix

Номер: US20120324703A1
Принадлежит: Boeing Co

A metal matrix composite is disclosed that includes graphene nanoplatelets dispersed in a metal matrix. The composite provides for improved thermal conductivity. The composite may be formed into heat spreaders or other thermal management devices to provide improved cooling to electronic and electrical equipment and semiconductor devices.

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03-01-2013 дата публикации

Elevated LED

Номер: US20130001511A1
Принадлежит: QUNANO AB

The present invention relates to light emitting diodes comprising at least one nanowire. The LED according to the invention is an upstanding nanostructure with the nanowire protruding from a substrate. A bulb with a larger diameter than the nanowire is arranged in connection to the nanowire and at an elevated position with regards to the substrate. A pn-junction is formed by the combination of the bulb and the nanowire resulting in an active region to produce light.

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10-01-2013 дата публикации

Transparent bacterial cellulose nanocomposite hydrogels

Номер: US20130011385A1
Принадлежит: Axcelon Biopolymers Corp

A transparent polymeric nanocomposite hydrogel is provided, wherein the polymeric nanocomposite hydrogel is made from a water insoluble polymer, i.e. poly(2-hydroxyethyl methacrylate) (PHEMA) or/and crosslinked PHEMA and a water insoluble nanofiber, i.e., bacterial cellulose (BC). Disclosed is a synthetic route for polymeric nanocomposites hydrogels. The preferred polymeric nanocompositions are produced through free radical polymerization of HEMA monomer in the presence of bacterial cellulose with an assistance of ultrasound to enhance the mixing of bacterial cellulose, initiator, and the monomers. The polymeric nanocomposite hydrogel is then formed by immersion of the dry polymeric nanocomposite in water. Disclosed is a high transmittance polymer nanocomposite hydrogel with a preferred BC loading less than 0.1%, water content of about 40% in weight, good mechanical integrity and strength. The disclosed polymer nanocomposite hydrogel and compositions pertain to hydrogel applications, particularly contact lenses and optic components for biosensor.

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10-01-2013 дата публикации

Technique for stabilizing solutions of titanium dioxide nanoparticles in acrylate polymers by means of short-pulsed uv laser irradiation

Номер: US20130012650A1

A method for preparing a colloid solution of titanium dioxide nanoparticles in a solution of acrylic resin in organic solvent includes mixing titanium dioxide nanoparticles with a solution of acrylic resin in organic solvent, so as to obtain the colloid solution. The colloid solution is subjected to a stabilization treatment suitable for preventing or reducing nanoparticle aggregation, the treatment includes irradiating the colloid solution with pulsed coherent light having a wavelength substantially comprised in the ultraviolet absorption band of the titanium dioxide nanoparticles.

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31-01-2013 дата публикации

Lighting devices with prescribed colour emission

Номер: US20130026506A1
Автор: Hagai Arbell

Optical conversion layers based on semiconductor nanoparticles for use in lighting devices, and lighting devices including same. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are used to form conversion layers with superior combinations of high optical density (OD), low re-absorbance and small FRET. In some embodiments, the SNPs or RSNPs form conversion layers without a host matrix. In some embodiments, the SNPs or RSNPs are embedded in a host matrix such as polymers or silicone. The conversion layers can be made extremely thin, while exhibiting the superior combinations of optical properties. Lighting devices including SNP or RSNP-based conversion layers exhibit energetically efficient superior prescribed colour emission

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31-01-2013 дата публикации

Method for making schottky barrier diode

Номер: US20130029459A1

A method for making a Schottky barrier diode includes the following steps. A first metal layer, a second metal layer and a carbon nanotube composite material are provided. The carbon nanotube composite material is applied on the first metal layer and the second metal layer to form a semiconductor layer. The carbon nanotube composite material includes an insulated polymer and a number of carbon nanotubes dispersed in the insulated polymer. The semiconductor layer is in Schottky contact with the first metal layer and in ohmic contact with the second metal layer.

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07-02-2013 дата публикации

Delivery of Hydrophilic Drugs

Номер: US20130034590A1
Принадлежит: UNIVERSITY COLLEGE LONDON

Compositions comprising a lipophilic derivative of a hydrophilic drug and an amphiphile compound for use in therapy of the human or animal body are provided. Methods of medical treatment, wherein a composition according to the invention is administered to a human or animal body also form part of the invention. It is preferred that the drug is delivered to the brain.

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07-02-2013 дата публикации

Dermatological compositions comprising avermectin nanocapsules

Номер: US20130034612A1
Принадлежит: GALDERMA SA

Compositions and nanoemulsions containing lipid nanocapsules dispersed in a hydrophilic phase, such nanocapsules including at least one avermectin compound, are useful for the treatment of dermatological pathologies, e.g., rosacea.

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14-02-2013 дата публикации

Fluorescent silica-based nanoparticles

Номер: US20130039848A1

The present invention provides a fluorescent silica-based nanoparticle that allows for precise detection, characterization, monitoring and treatment of a disease such as cancer The nanoparticle has a fluorescent compound positioned within the nanoparticle, and has greater brightness and fluorescent quantum yield than the free fluorescent compound To facilitate efficient urinary excretion of the nanoparticle, it may be coated with an organic polymer, such as polyethylene glycol) (PEG) The small size of the nanoparticle, the silica base and the organic polymer coating minimizes the toxicity of the nanoparticle when administered in vivo The nanoparticle may further be conjugated to a ligand capable of binding to a cellular component associated with the specific cell type, such as a tumor marker A therapeutic agent may be attached to the nanoparticle Radionuclides/radiometals or paramagnetic ions may be conjugated to the nanoparticle to permit the nanoparticle to be detectable by various imaging techniques.

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14-02-2013 дата публикации

Method of making polymer-bioceramic composite implantable medical devices

Номер: US20130041065A1
Принадлежит: Advanced Cardiovascular Systems Inc

Methods and devices relating to polymer-bioceramic composite implantable medical devices are disclosed.

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21-02-2013 дата публикации

In-line manufacture of carbon nanotubes

Номер: US20130045157A1
Принадлежит: Fastcap Systems Corp

Mass production of carbon nanotubes (CNT) are facilitated by methods and apparatus disclosed herein. Advantageously, the methods and apparatus make use of a single production unit, and therefore provide for uninterrupted progress in a fabrication process. Embodiments of control systems for a variety of CNT production apparatus are included.

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14-03-2013 дата публикации

ALUMINATE-BASED FLUORESCENT POWDER COATED BY METAL NANOPARTICLE AND PRODUCTION METHOD THEREOF

Номер: US20130062562A1
Автор: Liu Jun, Ma Wenbo, Zhou Mingjie
Принадлежит:

An aluminate-based fluorescent powder coated by metal nanoparticles. The formula thereof is (YTb)(AlGa)O@zM, in which 0 Подробнее

14-03-2013 дата публикации

COPOLYMER-STABILIZED EMULSIONS

Номер: US20130064759A1

An emulsion includes a substantially continuous liquid medium, and a plurality of droplet structures dispersed within the substantially continuous liquid medium. Each droplet structure of the plurality of droplet structures includes an outer droplet of a first liquid having an outer surface; an inner droplet of a second liquid within the first droplet, the second liquid being immiscible in the first liquid, wherein the inner and outer droplets have a boundary surface region therebetween; an outer layer of block copolymers disposed on the outer surface of the outer droplet; and an inner layer of block copolymers disposed on the boundary surface region between the outer and the inner droplets. 1. An emulsion , comprising:a substantially continuous liquid medium; anda plurality of droplet structures dispersed within said substantially continuous liquid medium,wherein each droplet structure of said plurality of droplet structures comprises:an outer droplet of a first liquid having an outer surface;an inner droplet of a second liquid having an inner surface within said first droplet, said second liquid being immiscible in said first liquid, wherein said inner and outer droplets have a film of said first liquid in a surface boundary region therebetween;an outer layer of block copolymers disposed on said outer surface of said outer droplet; andan inner layer of block copolymers disposed on said inner surface of said inner droplets in proximity to said boundary surface region between said outer and said inner droplets,wherein said block copolymers comprise a hydrophilic polymer block and a hydrophobic polymer block that act in combination to stabilize said droplet structure, and wherein said first liquid is immiscible in said substantially continuous liquid medium.2. An emulsion according to claim 1 , wherein said droplet structure has a maximum dimension corresponding to an undeformed droplet diameter that is less than about 1000 nm and greater than about 10 nm.3. An ...

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14-03-2013 дата публикации

Novel cationic lipids and methods of use thereof

Номер: US20130064894A1
Принадлежит: PROTIVA BIOTHERAPEUTICS INC

The present invention provides compositions and methods for the delivery of therapeutic agents to cells. In particular, these include novel cationic lipids and nucleic acid-lipid particles that provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic acid to cells in vivo. The compositions of the present invention are highly potent, thereby allowing effective knock-down of a specific target protein at relatively low doses. In addition, the compositions and methods of the present invention are less toxic and provide a greater therapeutic index compared to compositions and methods previously known in the art.

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21-03-2013 дата публикации

DOPED-CARBON NANO-ARCHITECTURED STRUCTURES AND METHODS FOR FABRICATING SAME

Номер: US20130069011A1

In an exemplary method, a nano-architectured carbon structure is fabricated by forming a unit (e.g., a film) of a liquid carbon-containing starting material and at least one dopant. A surface of the unit is nano-molded using a durable mold that is pre-formed with a pattern of nano-concavities corresponding to a desired pattern of nano-features to be formed by the mold on the surface of the unit. After nano-molding the surface of the unit, the first unit is stabilized to render the unit and its formed nano-structures capable of surviving downstream steps. The mold is removed from the first surface to form a nano-molded surface of a carbonization precursor. The precursor is carbonized in an inert-gas atmosphere at a suitable high temperature to form a corresponding nano-architectured carbon structure. A principal use of the nano-architectured carbon structure is a carbon electrode used in, e.g., Li-ion batteries, supercapacitors, and battery-supercapacitor hybrid devices. 1. A method for fabricating a nano-architectured doped carbon structure , comprising:preparing a carbon-containing starting material including at least one dopant;nano-molding a surface of the starting material, using a durable mold pre-formed with a pattern of nano-concavities corresponding to a desired pattern of nano-features to be formed by the mold on the surface, by bringing together the surface of the starting material and the pattern of nano-concavities;when the nano-features formed by the mold on the surface of the starting material have reached at least a threshold level of self-supportability, separating the mold and surface of the unit from each other to form a carbonization precursor having a nano-molded surface; andcarbonizing the precursor to form a corresponding nano-architectured carbon structure.2. The method of claim 1 , wherein the dopant comprises a substance selected from a group consisting of metals and semiconductors.3. The method of claim 2 , wherein the dopant comprises nano ...

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21-03-2013 дата публикации

Electrically Conductive, Olefin Multiblock Copolymer Compositions

Номер: US20130069013A1
Автор: Esseghir Mohamed
Принадлежит:

Free radically crosslinked, electrically conductive compositions exhibiting a highly stable volume resistivity comprise an olefin multiblock copolymer (OBC) and a conductive filler, e.g., a conductive carbon black. These compositions exhibit a highly stable volume resistivity relative to a composition similar in essentially all aspects save that the OBC is replaced with a conventional polyethylene of similar density and melt index. 2. The composition of further comprising at least one of:C. An elastomer other than an OBC,D. A plasticizer,E. A cure agent, andF. One or more additives.3. The composition of in which the conductive filler is at least one of carbon black claim 2 , conductive carbon and metal particles.4. The composition of in which the conductive filler is at least one of graphene and carbon nanotubes.5. The composition of in which the metal filler comprises at least one of aluminum claim 3 , zinc claim 3 , iron claim 3 , nickel claim 3 , tin claim 3 , lead claim 3 , and silver.6. The composition of in which the elastomer is present in an amount of 1 to 35 wt % based on the weight of the composition claim 3 , and is at least one of a polyolefin homopolymer and interpolymer.7. The composition of in which the elastomer is present in an amount of 1 to 35 wt % based on the weight of the composition claim 3 , and is a non-olefin elastomer comprising at least one of silicone elastomer claim 3 , urethane elastomer claim 3 , styrene-butadiene rubber (SBR) claim 3 , nitrile rubber claim 3 , chloroprene claim 3 , fluoroelastomer claim 3 , perfluoroelastomer claim 3 , polyether block amide and chlorosulfonated polyethylene.8. The composition of in which the plasticizer is present in an amount of 1 to 20 wt % based on the weight of the composition.9. The composition of in which at least one of the OBC and elastomer comprises silane functionality.10. The composition of in which the cure agent is present and is at least one of an organic base claim 3 , carboxylic acid ...

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21-03-2013 дата публикации

NOBLE METAL FINE PARTICLE, METHOD FOR WITHDRAWING NOBLE METAL FINE PARTICLES, AND METHOD FOR PRODUCING NOBLE METAL FINE PARTICLE DISPERSED MATERIAL USING WITHDRAWN NOBLE METAL FINE PARTICLES

Номер: US20130069017A1
Принадлежит: NIPPON SHEET GLASS COMPANY, LIMITED

The present invention provides a noble metal fine particle with a protein adsorbed thereon, including a noble metal fine particle, and a protein adsorbed on a surface of the noble metal fine particle. The protein has an isoelectric point in a range of pH 4.0 to 7.5. An amount of the protein adsorbed is in a range of 3 to 55.1 wt % with respect to a total weight of the noble metal fine particle and the protein. The noble metal fine particle with a protein adsorbed thereon according to the present invention has excellent redispersibility. That is, by adjusting the pH of a noble metal fine particle dispersed liquid to the isoelectric point of the proteins and allowing the noble metal fine particles to be aggregated without adding a degrading enzyme that degrades the proteins to the noble metal fine particle dispersed liquid, it is possible to allow the noble metal fine particles with proteins adsorbed thereon withdrawn from the noble metal fine particle dispersed liquid to have an average particle diameter that is not increased significantly even after they are redispersed in another dispersion medium. 1. A noble metal fine particle with a protein adsorbed thereon , comprising a noble metal fine particle , and a protein adsorbed on a surface of the noble metal fine particle ,wherein an isoelectric point of the protein is in a range of pH 4.0 to 7.5, and an amount of the protein adsorbed is in a range of 3 to 55.1 wt % with respect to a total weight of the noble metal fine particle and the protein.2. The noble metal fine particle with a protein adsorbed thereon according to claim 1 , wherein the protein is casein.3. The noble metal fine particle with a protein adsorbed thereon according to claim 1 , wherein the noble metal fine particle is composed of at least one noble metal selected from Pt claim 1 , Pd claim 1 , Au claim 1 , Ag claim 1 , Ru claim 1 , and Rh.4. A plurality of fine particles claim 1 , each fine particle comprising a noble metal fine particle claim 1 , ...

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21-03-2013 дата публикации

DYNAMIC STRAIN HARDENING IN POLYMER NANOCOMPOSITES

Номер: US20130069271A1
Принадлежит: William Marsh Rice University

The present invention provides methods of strengthening composites. In some embodiments, such methods generally comprise a step of applying a dynamic stress to the composite in order to increase at least one of the stiffness or strength of the composite. In some embodiments, the composite comprises: a polymer matrix; nanomaterial fillers; and an interphase between the polymer matrix and the nanomaterial fillers. In some embodiments, the stiffness or strength of the composite increases permanently in response to the applied stress. In some embodiments, the increase in the stiffness or strength of the composite may be associated with an increase in the storage modulus of the composite, a decrease in the loss modulus of the composite, and a decrease in the loss tangent of the composite. In some embodiments, the applied stress results in a rearrangement of the interphase. 1. A method of strengthening a composite , wherein the method comprises: a polymer matrix,', 'nanomaterial fillers, and', 'an interphase between the polymer matrix and the nanomaterial fillers;, 'wherein the composite comprises, 'applying a dynamic stress to the composite,'}wherein the applied dynamic stress increases at least one of stiffness or strength of the composite.2. The method of claim 1 , wherein the applied dynamic stress comprises cyclical stress.3. The method of claim 1 , wherein the applied dynamic stress is applied in a direction axial to a direction of nanomaterial filler alignment.4. The method of claim 1 , wherein the applied dynamic stress is applied in a direction radial to a direction of nanomaterial filler alignment.5. The method of claim 1 , wherein the at least one of stiffness or strength of the composite increases by about 5% to about 30%.6. The method of claim 2 , wherein the at least one of stiffness or strength of the composite continues to increase after a reapplication of the dynamic stress to the composite.7. The method of claim 1 , wherein the relaxation modulus of the ...

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21-03-2013 дата публикации

ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC LIGHT EMITTING MEDIUM

Номер: US20130069523A1
Принадлежит:

An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device. 117-. (canceled)21. The electroluminescence device according to claim 18 , wherein the anthracene derivative of formula II is represented by formula II-a:{'br': None, 'sup': 1', '2, 'X-An-X\u2003\u2003(II-a)'}{'sup': 1', '2, 'wherein An is as defined above and Xand Xeach independently represent a residue of naphthalene, phenanthrene, fluoranthene, anthracene, pyrene, perylene, coronene, chrysene, picene, diphenylanthracene, carbazole, triphenylene, rubicene, benzoanthracene, phenylanthracene, bisanthracene, dianthracenylbenzene or dibenzoanthracene, the residue being optionally substituted.'}24. The electroluminescence device according to claim 18 , wherein a weight ratio of the component A and the component B is 1:99 to 20:80.25. The electroluminescence device according to claim 18 , wherein a layer of a chalcogenide claim 18 , a layer of a metal halide or a layer of a metal oxide is disposed on at least one surface of the pair of electrodes.26. The electroluminescence device according to claim 18 , wherein a mixed region comprising a reducing dopant and organic substances or a mixed region comprising an oxidizing dopant and organic substances is disposed on at least one surface of the pair of electrodes.27. The electroluminescence device according to claim 18 , ...

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21-03-2013 дата публикации

TOUCH INPUT APPARATUS AND OPERATION METHOD THEREOF

Номер: US20130069900A1
Автор: YANG SHU-SIAN
Принадлежит: PIXART IMAGING INC.

This invention provides several touch input apparatuses and operating methods. One touch input apparatus includes two carbon nanotube (CNT) layers, a plurality of contact pads and a processing circuit. The CNTs of the two CNT layers are respectively disposed to two different arrangement directions. The contact pads are divided into two groups to electrically connect the edges of the two CNT layers respectively. Each group of the contact pads is arranged in a direction perpendicular to the arrangement direction of the corresponding carbon nanotubes. The processing circuit provides a comparison voltage to one group of the contact pads and reads out the voltages on the other contact pads. When one CNT layer receives an external force so that the forced position on one CNT layer is electrically connected to the other CNT layer, the processing circuit calculates the strength of the external force according to the readout voltage values. 1. A touch input apparatus , comprising:a first carbon nanotube layer of which carbon nanotubes each are disposed to be roughly parallel to a first direction;a second carbon nanotube layer of which carbon nanotubes each are disposed to be roughly parallel to a second direction, and the first and the second carbon nanotube layers having a predetermined distance therebetween;a plurality of first contact pads electrically connected to an edge of the first carbon nanotube layer and arranged in a line perpendicular to the first direction;a plurality of second contact pads electrically connected to an edge of the second carbon nanotube layer and arranged in a line perpendicular to the second direction; anda processing circuit electrically connected to the first and the second contact pads and configured to, in a first period, provide a first comparison voltage to the second contact pads, sequentially operate the first contact pads in a floating state according to a first predetermined order and simultaneously electrically connect the first ...

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21-03-2013 дата публикации

Led light bulb with controlled color distribution using quantum dots

Номер: US20130070450A1
Автор: David Horn
Принадлежит: Switch Bulb Co Inc

A liquid-cooled LED bulb including a base and a shell connected to the base forming an enclosed volume. The liquid-cooled LED bulb also includes a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a thermally-conductive liquid held within the enclosed volume and a quantum dot material for adjusting the wavelength of light emitted from LED bulb.

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21-03-2013 дата публикации

Method and Apparatus for Identifying and Characterizing Material Solvents and Composite Matrices and Methods of Using Same

Номер: US20130071313A1
Принадлежит:

Solvents for macromolecules generally believed to be insoluble in their pristine form are identified by generation of a “solvent resonance” in the relationship between solvent quality (deduced by Rayleigh scattering) and an intrinsic property of solvents. A local extreme of the solvent resonance identifies the ideal intrinsic property of an ideal solvent which may then be used to select a particular solvent or solvent combination. A solvent for graphene is used in the production of transparent conductive electrodes. 1. A solution or dispersion of graphene using a solvent characterized by a value of chi less than substantially 0.08.2. The solution or dispersion of wherein the value of chi for the solvent is less than 0.01.3. The solution or dispersion of wherein the value of chi for the solvent is substantially between 0.00 and −0.13.4. The solution or dispersion of wherein the graphene is pristine.5. A solution or dispersion of graphene using a solvent characterized by a surface tension value substantially between about 36 mJ/mand 43 mJ/m.6. A solution or dispersion of graphene using a solvent characterized by a surface tension value substantially between about 37 mJ/mand 42 mJ/m.7. A solution or dispersion of graphene using a solvent characterized by a surface tension value of between substantially 38.4 mJ/mand 40.4 mJ/m.8. The solution or dispersion of wherein the surface tension value for the solvent is between substantially 38.8 mJ/mand 40.0 mJ/m.9. The solution or dispersion of wherein the surface tension value for the solvent is approximately 39.4 mJ/m.10. A solution or dispersion of graphene using a solvent characterized by a dispersion limit of the graphene within the solvent of greater than substantially 0.05 mg/ml.11. The solution or dispersion of wherein the solvent is a pyrrolidone.12. The solution or dispersion of wherein the solvent is selected from the group consisting of: CHP claim 10 , NMP claim 10 , NEP claim 10 , N8P and mixtures thereof.13. The ...

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21-03-2013 дата публикации

Fenugreek Seed Extract to Lower Blood Cholesterol

Номер: US20130071470A1
Принадлежит:

A method of lowering blood cholesterol in a non-diabetic patient by at least 30% is described. The method involves orally administering for 30 consecutive days a fenugreek seed extract composition. Various methods of preparation and various formulations are described. Physiologically effective pharmaceutical compositions and beverages containing fenugreek seed extracts and other active components are also disclosed. 1Trigonella foenum graecum. A composition consisting essentially of fenugreek () seed extract.2. The composition of claim 1 , wherein the composition is selected from the group consisting of a pill claim 1 , capsule claim 1 , granules claim 1 , microparticles claim 1 , nanoparticles and liposomes.3. The composition of claim 1 , wherein the composition is formulated for oral delivery in an oral dosage form.4. The composition of claim 1 , wherein the composition optionally includes an agent selected from the group consisting of a pharmaceutically acceptable excipient claim 1 , lubricant claim 1 , binder claim 1 , glidant claim 1 , filler claim 1 , flavoring agent claim 1 , masking agent claim 1 , vitamin claim 1 , mineral claim 1 , a carrier and mixtures thereof.5. The composition of claim 3 , wherein the composition is in oral dosage form in single dosage.6. The composition of claim 5 , wherein the composition is oral dosage form in a single dose enteric coated formulation.7. The composition of claim 1 , wherein the oral dosage form is a liquid oral formulation.8. The composition of claim 7 , wherein the liquid oral formulation is a liposomal formulation.9. The composition of claim 3 , wherein the oral dosage from contains a plurality of therapeutic nanoparticles.10. The composition of claim 1 , wherein the extract is contained in a package with instructions for use. This application is a continuation application of U.S. application Ser. No. 11/030,886 filed Jan. 10, 2005, now pending; which claims the benefit under 35 USC §119(e) to U.S. Application Ser. ...

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21-03-2013 дата публикации

Fascile synthesis of biocompatible polymer capsule nanoparticles for drug encapsulation

Номер: US20130071472A1
Автор: SHIEH Dar-Bin
Принадлежит:

The present invention relates to a method for preparing a capsule nanoparticle used in encapsulating hydrophobic medicines, comprising the following steps: (A) providing a biocompatible polymer and an organic solution containing a hydrophobic medicine; (B) stirring the organic solution at 3-10° C., and titrating with an alcohol solution, so as to make the biocompatible polymer encapsulate hydrophobic medicine to form a capsule nanoparticle; (C) ultrasonic vibrating the capsule nanoparticle at 3-10° C.; (D) filtering the capsule nanoparticle to an average size controllable in the range of 60-450 nm; and (E) lyophilizing the encapsulated particles. 1. A method for preparing capsules encapsulating hydrophobic medicines , comprising the steps of:(A) providing an organic solution having a biocompatible polymer and a hydrophobic medicine;(B) stirring the organic solution at a low temperature of 3 to 10° C., and titrating with a alcohol solution, to make the biocompatible polymer encapsulate the hydrophobic medicine to form a capsule nanoparticle;(C) ultrasonic vibrating the capsule nanoparticle at a low temperature of 3 to 10° C.;(D) filtering the capsule nanoparticle, to make an average capsule nanoparticle diameter of the capsule nanoparticle at 60-450 nm; and(E) lyophilizing the capsule nanoparticle.2. The method for preparing capsules encapsulating hydrophobic medicines according to claim 1 , wherein claim 1 , the biocompatible polymer is selected from the group consisting of: (poly-(D claim 1 ,L-lactide-co-glycolide)) claim 1 , PLA claim 1 , and PEG-PLA.3. The method for preparing capsules encapsulating hydrophobic medicines according to claim 1 , wherein the hydrophobic medicine is a anti-cancer medicine.4. The method for preparing capsules encapsulating hydrophobic medicines according to claim 3 , wherein claim 3 , the anti-cancer is at least selected from the group consisting of: phyxol claim 3 , J-30 claim 3 , LY 294002 and AG490.5. The method for preparing ...

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21-03-2013 дата публикации

PHASE SHIFT MASK BLANK, METHOD OF MANUFACTURING THE SAME, AND PHASE SHIFT MASK

Номер: US20130071777A1
Принадлежит: HOYA CORPORATION

Provided are a phase shift mask blank that is improved in the irradiation durability of a light-semitransmissive film (phase shift film), made of a material containing mainly a transition metal, silicon, and nitrogen, to exposure light having a wavelength of 200 nm or less and thus can improve the mask lifetime, a method of manufacturing such a phase shift mask blank, and a phase shift mask. The phase shift mask blank is used for manufacturing a phase shift mask adapted to be applied with ArF excimer laser exposure light. The phase shift mask blank has a light-semitransmissive film on a transparent substrate. 1. A phase shift mask blank for manufacturing a phase shift mask adapted to be applied with ArF excimer laser exposure light , comprising:a transparent substrate; anda light-semitransmissive film on the transparent substrate;wherein the light-semitransmissive film is an incomplete nitride film containing mainly a transition metal, silicon, and nitrogen, anda content ratio of the transition metal to the transition metal and the silicon in the light-semitransmissive film is less than 9%.2. The phase shift mask blank according to claim 1 , wherein the content ratio of the transition metal to the transition metal and the silicon in the light-semitransmissive film is 2% or more.3. The phase shift mask blank according to claim 1 , wherein the incomplete nitride film contains Mo—N bonds and Mo—Si bonds claim 1 , anda content of the Mo—Si bonds is relatively greater than a content of the Mo—N bonds.4. The phase shift mask blank according to claim 1 , wherein the incomplete nitride film mainly contains Si—N bonds and Mo—Si bonds.5. The phase shift mask blank according to claim 1 , wherein the light-semitransmissive film has a transmittance of 4% or more and less than 9% with respect to a wavelength of the exposure light.6. The phase shift mask blank according to claim 1 , wherein a content of the nitrogen in the light-semitransmissive film is 40 at % or more and 47 at % ...

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21-03-2013 дата публикации

Compounds and Compositions for Nucleic Acid Formulation and Delivery

Номер: US20130072543A1
Принадлежит: ARROWHEAD RESEARCH CORPORATION

The invention relates to compositions containing compounds of formula I: 2. A lipid nanoparticle composition of comprising a compound of formula I claim 1 , wherein R is linoleyl claim 1 , Ris chloromethyl; Rand Rare methyl; and n is 2.3. A lipid nanoparticle composition of comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a) a compound of formula I in ;'} 1,2-dipalmitoyl-sn-glycero-3-phosphocholine,', '1,2-distearoyl-sn-glycero-3-phosphocholine, and', '1,2-dioleoyl-sn-glycero-3-phosphocholine;, 'b) a phospholipid selected from the group consisting ofc) cholesterol; [{'sub': '2000', 'R-3-[(ω-methoxy-poly(ethyleneglycol))carbamoyl]-1,2-dimyristyloxy-propyl-3-amine; and'}, '1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000]; and, 'd) a pegylated lipid compound selected from the group consisting ofe) a polynucleotide.4. A lipid nanoparticle composition of comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'claim-text': N-(chloromethyl)-2-(2,2-di((9Z,12Z)-octadeca-9,12-dienyl)-1,3-dioxolan-4-yl)-N,N-dimethylethanamonium chloride;', '2-(2,2-di((9Z,12Z)-octadeca-9,12-dienyl)-1,3-dioxolan-4-yl)-N,N,N-trimethyl-ethanamonium iodide; and', '2-(2,2-di((9Z,12Z)-octadeca-9,12-dienyl)-1,3-dioxolan-4-yl)-N-ethyl-N,N-dimethyl-ethanamonium iodide;, 'a) a compound of formula I in selected from the group consisting of'} 1,2-dipalmitoyl-sn-glycero-3-phosphocholine,', '1,2-distearoyl-sn-glycero-3-phosphocholine, and', '1,2-dioleoyl-sn-glycero-3-phosphocholine;, 'b) a phospholipid selected from the group consisting ofc) cholesterol; [{'sub': '2000', 'R-3-[(ω-methoxy-poly(ethyleneglycol))carbamoyl]-1,2-dimyristyloxy-propyl-3-amine; and'}, '1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N4methoxy(polyethylene glycol)-2000]; and, 'd) a pegylated lipid compound selected from the group consisting ofe) a polynucleotide.5. A lipid nanoparticle composition of further comprising claim 4 ,2-(2,2-di((9Z,12Z)-octadeca-9,12-dienyl)-1,3- ...

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21-03-2013 дата публикации

COMPOSITIONS CONTAINING BORANE OR CARBORANE CAGE COMPOUNDS AND RELATED APPLICATIONS

Номер: US20130072604A1

Compositions comprising a polymer-containing matrix and a filler comprising a cage compound selected from borane cage compounds, carborane cage compounds, metal complexes thereof, residues thereof, mixtures thereof, and/or agglomerations thereof, where the cage compound is not covalently bound to the matrix polymer. Methods of making and applications for using such compositions are also disclosed. 1. A composition comprising:a matrix comprising a polymer, wherein said polymer comprises less than 90 weight percent of a poly(conjugated diene), wherein said polymer comprises less than 90 weight percent of a polysiloxane; anda filler comprising a mixture of cage compounds selected from the group consisting of a borane cage compound, a carborane cage compound, a metal complex thereof, a residue thereof, and agglomerations thereof, wherein said cage compounds comprise at least 7 cage atoms,wherein said cage compounds are not covalently bound to said polymer.2. The composition of claim 1 , wherein said polymer comprises less than 10 weight percent of a poly(conjugated diene) claim 1 , wherein said polymer comprises less than 10 weight percent of a polysiloxane.3. The composition of claim 1 , wherein one of said cage compounds comprises a borane cage compound and/or a carborane cage compound having 12 cage atoms claim 1 , wherein said cage compound has an icosahedral structure.4. The composition of claim 1 , wherein one of said cage compounds comprises one or more pendant groups selected from the group consisting of a Cto Cn-alkyl claim 1 , a hydroxy claim 1 , a carboxy claim 1 , an epoxy claim 1 , an isocyanate claim 1 , a primary amine claim 1 , a silyl claim 1 , and an alkoxy silyl.5. The composition of claim 1 , wherein one of said cage compounds is selected from the group consisting of:{'sub': 2', 'n', 'n+2, '(a) a closo-carborane having the general formula CBH, wherein n is in the range of from 5 to 10;'}{'sub': x', '2', 'n', 'n+2−x', '1', '20, '(b) a closo-carborane ...

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21-03-2013 дата публикации

Pneumatic object provided with a gastight layer containing a thermoplastic elastomer and a thermoplastic

Номер: US20130072621A1

A pneumatic object or inflatable article is provided with a gastight elastomer layer. The gastight elastomer layer includes a thermoplastic polyisobutylene block elastomer and hot-melt polymer microdomains based on at least one thermoplastic material.

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21-03-2013 дата публикации

Covalently Functionalized Carbon Nanostructures and Methods for Their Separation

Номер: US20130072669A1
Принадлежит: University of Maryland, College Park

The present invention is directed to carbon nanostructures, e.g., carbon nanotubes, methods of covalently functionalizing carbon nanostructures, and methods of separating and isolating covalently functionalized carbon. In some embodiments, carbon nanotubes are reacted with alkylating agents to provide water soluble covalently functionalized carbon nanotubes. In other embodiments, carbon nanotubes are reacted with a thermally-responsive agent and exposed to light in order to separate carbon nanotubes of a specific chirality from a mixture of carbon nanotubes. 1. A method comprising:a) introducing one or more defects onto a carbon nanostructure; andb) reacting said carbon nanostructure comprising said one or more defects with an alkylating agent,wherein covalent functionalization propagates from said one or more defects to produce a covalently functionalized carbon nanostructure.2. The method of claim 2 , wherein said carbon nanostructure is a carbon nanotube.3. The method of claim 1 , wherein covalent functionalization propagates from said one or more defects to create alternating sections of functionalized and intact regions of said covalently functionalized carbon nanostructure.4. The method of claim 1 , wherein said one or more defects are introduced by treating said carbon nanostructure with HOand HCl.5. The method of claim 1 , wherein said reacting comprises combining said carbon nanostructure comprising said one or more defects claim 1 , said alkylating agent claim 1 , liquid ammonia claim 1 , and an alkali metal.6. The method of claim 5 , wherein said alkylating agent is a compound having Formula I:{'br': None, 'sub': 2', 'm, 'sup': '1', 'X—(CH)—R\u2003\u2003I'} X is halo;', 'm is an integer from 1-30;', {'sup': 1', '2, 'sub': '2', 'Ris H or COR; and'}, {'sup': '2', 'Ris hydrogen or a monovalent cation.'}], 'wherein7. The method of claim 2 , wherein said one or more defects are introduced onto one carbon nanotube type or chirality that is part of a mixture of ...

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21-03-2013 дата публикации

CATALYST AND METHOD FOR PRODUCING THE SAME AND METHOD FOR PRODUCING PARAXYLENE USING THE SAME

Номер: US20130072736A1
Принадлежит: JX NIPPON OIL & ENERGY CORPORATION

The present invention relates to a novel catalyst which has a molecular sieving effect (or shape selectivity) and has excellent catalytic activity, and particularly to a catalyst which includes a core made of a zeolite particle having a particle size of not more than 10 μm and a zeolite layer covering the core, wherein as measured by X-ray photoelectron spectroscopy, an outermost surface of the catalyst has a silica/alumina molar ratio of not less than 800, the core made of the zeolite particle has an average silica/alumina molar ratio of not more than 300, and the zeolite layer has an aluminum concentration increasing inward from an outer surface of the catalyst. 1. A catalyst comprising: a core made of a zeolite particle having a particle size of not more than 10 μm; and a zeolite layer covering the core , wherein as measured by X-ray photoelectron spectroscopy , an outermost surface of the catalyst has a silica/alumina molar ratio of not less than 800 , the core made of the zeolite particle has an average silica/alumina molar ratio of not more than 300 , and the zeolite layer has an aluminum concentration increasing inward from an outer surface of the catalyst.2. The catalyst according to claim 1 , wherein a thickness of the zeolite layer covering the core is not less than 10 nm but not more than 1 μm.3. The catalyst according to claim 1 , wherein the zeolite particle as the core and the zeolite layer covering the core have an MFI structure claim 1 , and the zeolite layer is epitaxial to the zeolite particle as the core.4. A method for producing a catalyst claim 1 , wherein a zeolite particle containing aluminum and having a particle size of not more than 10 μm is provided as a core and subjected to hydrothermal synthesis using a silica source claim 1 , an aluminum source and a structure directing agent so that a zeolite layer having the same crystalline structure as the zeolite particle is precipitated on an outer surface of the zeolite particle as the core ...

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28-03-2013 дата публикации

TEMPERATURE-STABLE LIQUID AQUEOUS POLYSACCHARIDE SUSPENSIONS AND USE THEREOF AS THICKENING AGENTS IN CEMENTITIOUS COMPOSITIONS

Номер: US20130074739A1
Принадлежит:

A liquid aqueous suspension of polysaccharide, contains a mass concentration of at least one polysaccharide of between 15 and 35% in the form of partially hydrated particles dispersed in an aqueous solution of a strong base salt, excluding ammonium salts, with an ionic strength of between 1.25 mol/L and 15 mol/L, has a pH greater than 9 and contains at least one non-phyllitic crystalline mineral powder, referred to hereafter as filler, which is chemically inert in the aqueous suspension and which has a grain size of between 0.1 and 100 micrometres and an attapulgite in micronized form, the aqueous suspension being stable at least in a temperature range from 5 to 30 30° C. The suspension is suitable for use as an agent for thickening cementitious compositions. 1. A liquid aqueous polysaccharide suspension including a concentration by weight of at least one polysaccharide of between 15 and 35% in the form of partially hydrated particles dispersed in an aqueous solution of a strong base salt , with the exception of ammonium salts , having an ionic strength of between 1.25 mol/l and 15 mol/l , exhibiting a pH of greater than 9 , and including an attapulgite in the micronized form and at least one nonphyllitic mineral powder , hereinafter referred to as filler , chemically inert in said aqueous suspension , with a particle size of between 0.1 and 100 micrometers , conferring on said aqueous suspension a stability at least in a temperature range extending from 5 to 30° C.2. The aqueous suspension as claimed in claim 1 , characterized in that the content by weight of attapulgite is between 0.1% and 5% claim 1 , preferably between 0.2% and 0.8%.3. The aqueous suspension as claimed in claim 1 , characterized in that the aqueous solution exhibits an ionic strength of between 2.5 mol/l and 12.5 mol/l.4. The aqueous suspension as claimed in claim 1 , characterized in that the filler is a siliceous filler claim 1 , preferably a crystalline filler claim 1 , with a density of ...

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28-03-2013 дата публикации

Composition for Well Cementing Comprising A Compounded Elastomer Swelling Additive

Номер: US20130075096A1
Принадлежит:

The disclosure relates to a composition for well cementing in a subterranean formation comprising a pumpable slurry of cement, water and at least one additive that swells in contact with underground fluid (hydrocarbon, water or brines and mixtures thereof) in case of failure of the cement matrix and to a method of cementing a well using said composition. The swelling additive is an elastomer compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group. 1. A composition for well cementing in a subterranean formation comprising a pumpable slurry of a settable material , water and at least one additive that swells in contact with hydrocarbons , water or brines and mixtures thereof in case of failure of the cement matrix , wherein said swelling additive is an elastomer compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group.2. The composition according to claim 1 , wherein the well is an oil and/or gas well claim 1 , and wherein the fluid comprises CO.3. The composition of claim 1 , further comprising dispersing additives claim 1 , retarder additives claim 1 , accelerating agents claim 1 , fluid loss control agents claim 1 , and/or weighting agents.4. The composition of claim 1 , comprising 5 to 20% BVOB.5. The composition of claim 1 , wherein the particles of polymer have a particle size of between 10 nm to 1 000 000 nm claim 1 , preferably between 100 000 nm and 900 000 nm.6. The composition of further comprising a swellable compound comprising rubber claim 1 , in particular styrene butadiene rubber and ground rubber claim 1 , poly 2 claim 1 ,2 claim 1 ,1-bicyclo-heptene (polynorbornene) claim 1 , alkylstyrene claim 1 , crosslinked substituted vinyl-acrylate copolymers claim 1 , EPDM (elastomeric terpolymer from ethylene claim 1 , propylene and non-conjugated diene) or diatomaceous earth and mixtures thereof.7. The composition of wherein the settable material comprises cement claim 1 , ...

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28-03-2013 дата публикации

Method and Apparatus for Identifying and Characterizing Material Solvents and Composite Matrices and Methods of Using Same

Номер: US20130075650A1
Принадлежит:

Solvents for macromolecules generally believed to be insoluble in their pristine form are identified by generation of a “solvent resonance” in the relationship between solvent quality (deduced by Rayleigh scattering) and an intrinsic property of solvents. A local extreme of the solvent resonance identifies the ideal intrinsic property of an ideal solvent which may then be used to select a particular solvent or solvent combination. A solvent for graphene is used in the production of transparent conductive electrodes. 1. A method of preparing a polymer composite comprising the steps of:(a) dispersing graphene in a solvent characterized by a value of chi less than about 0.08; and(b) capturing the dispersed graphene in a substantially solid phase polymer matrix.2. The method of wherein the value of chi for the solvent is less than 0.01.3. The method of wherein the value of chi for the solvent is substantially between 0.00 and −0.134. The method of wherein step (b) mixes the solvent-graphene solution with the polymer and then removes the solvent.5. The method of wherein the step of extraction includes at least one of the steps of: freeze-drying claim 4 , heat drying claim 4 , laser treatment claim 4 , centrifugal evaporation claim 4 , and vacuum desiccation.6. The method of wherein step (b) includes the steps of first dissolving a polymer in a polymer solvent and then mixing the polymer and polymer solvent with the graphene-solvent solution and extracting the polymer solvent.7. The method of wherein step (b) includes the step of hardening the solvent to provide the polymer matrix.8. The method of wherein the solvent is a monomer and thickening is a polymerization of the solvent.9. The method of wherein step (b) mixes the graphene-solvent solution with a polymer that forms the polymer matrix that is also a solvent for the graphene.10. The method of wherein the solvent in step (a) is a thermoplastic heated to reduce its viscosity during step (a) and wherein step (b) ...

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28-03-2013 дата публикации

HALOGEN SILICATE LUMINESCENT MATERIAL AND THE PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20130075657A1
Автор: Liu Jun, Ma Wenbo, Zhou Mingjie

Disclosed is a halogen silicate luminescent material having a chemical structural formula of (NEuMn)SiOCl:xM, and the preparation method thereof, where M is at least one of Ag, Au, Pt and Pd, N is an alkaline earth metal and specifically at least one of Mg, Ca, Sr and Ba, 0 Подробнее

28-03-2013 дата публикации

FLUORESCENT POWDER OF HALOGEN SILICATE CONTAINING NANO-METAL PARTICLES AND PREPARATION METHOD THEREOF

Номер: US20130075658A1
Автор: Liu Jun, Ma Wenbo, Zhou Mingjie
Принадлежит:

Provided is a fluorescent powder of halogen-silicate containing nano-metal particles with the formula of CaX.y(CaEuMnO).SiO:zM, wherein X is fluorin or/and chlorine, y is 1 or 2, z is molar ratio of nano-metal particles and fluorescent powder CaX.y(CaEuMnO).SiO, 0 Подробнее

28-03-2013 дата публикации

YTTRIUM OXIDE PHOSPHOR AND PREPARATION METHOD THEREOF

Номер: US20130075662A1

Fluorescent materials and preparation methods thereof are provided. The fluorescent materials are represented by the general formula: YO: Re, M, ZnAlO, wherein Re is at least one selected from Eu and Tb, M is at least one selected from Ag, Au, Pt and Pd in the form of nano-particle, and 0 Подробнее

28-03-2013 дата публикации

COLOURED POLYMER PARTICLES

Номер: US20130075664A1
Принадлежит: Merck Patent GmBH

This invention relates to coloured polymer particles prepared by a reverse emulsion solvent removal process, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids. 118-. (canceled)19. A process for the preparation of coloured polymer particles for use in electrophoretic devices , comprising the steps ofa) forming a reverse emulsion comprising optionally at least one polymer, at least one, optionally pre-polymerised, dye, at least one polar solvent, at least one non-polar solvent, and at least one optionally charged surfactant,b) removing the polar solvent or polar solvents by evaporative methods andc) optionally removing the non-polar solvent or non-polar solvents.20. The process according to claim 19 , wherein the reverse emulsion of step a) is prepared by al) forming a polar phase by mixing optionally at least one polymer claim 19 , at least one claim 19 , optionally pre-polymerised claim 19 , dye claim 19 , and at least one polar solvent claim 19 , a2) forming a non-polar phase by mixing at least one non-polar solvent claim 19 , and at least one surfactant claim 19 , a3) combining the polar phase and the non-polar phase claim 19 , and a4) homogenising the combined phases to form the reverse emulsion.21. The process according to claim 19 , wherein the dye is water-soluble or water-dispersible.22. The process according to claim 19 , wherein the dye comprises a chromophoric group and optional groups to modify physical properties and/or optionally charged groups and/or optionally linker groups and/or optionally polymerisable groups.23. The process according to claim 19 , wherein amaranth claim 19 , basic blue 41 methacrylate claim 19 , and/or acid yellow 9 are used as dyes.24. The process according to claim 19 , wherein the polymer of step a) is hydrophilic and/or charged.25. The process according to claim 19 , wherein the polar solvent used in step a) is water claim 19 , low molecular weight alcohol claim 19 , ...

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28-03-2013 дата публикации

WATER-SOLUBLE POLYMER AND WATER-SOLUBLE NANOPARTICLE COMPOSITE

Номер: US20130075665A1
Принадлежит: Toray Industries, Inc.

A water-soluble nanoparticle complex has a plurality of accumulated nanoparticles and has excellent uniformity and stability by forming a complex of nanoparticles using a water-soluble polymer and which allows for use of nanoparticles in biochemical applications. 2. The water-soluble polymer according to claim 1 , wherein x claim 1 , y claim 1 , and z satisfy x+y+z=10 to 350.3. The water-soluble polymer according to claim 1 , wherein at least one end of a polymer main chain composed of the repeating units of Formulas (1) claim 1 , (2) claim 1 , and (3) comprises at least one functional group selected from the group consisting of —NH claim 1 , —COOH claim 1 , —OH claim 1 , —SH claim 1 , —CHO claim 1 , and biotinyl.4. The water-soluble polymer according to claim 3 , comprising —(OCHCH)— (wherein p is an integer from 1 to 120) as a spacer between said polymer main chain and said functional group.5. A water-soluble nanoparticle complex claim 1 , comprising the water-soluble polymer according to and nanoparticles.6. The water-soluble nanoparticle complex according to claim 5 , wherein said water-soluble nanoparticle complex has an average particle size of 10 to 300 nm.7. The water-soluble nanoparticle complex according to claim 5 , wherein said nanoparticles have luminescence properties claim 5 , plasmon absorption properties claim 5 , or magnetic properties.8. The water-soluble nanoparticle complex according to claim 5 , wherein said nanoparticles are semiconductor nanoparticles.9. The water-soluble nanoparticle complex according to claim 8 , wherein said semiconductor nanoparticles are semiconductor nanoparticles comprising at least a Group 12 element of the periodic table and a Group 16 element of the periodic table claim 8 , semiconductor nanoparticles comprising a Group 11 element of the periodic table claim 8 , a Group 13 element of the periodic table claim 8 , and a Group 16 element of the periodic table claim 8 , or semiconductor nanoparticles comprising a Group ...

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28-03-2013 дата публикации

CONDUCTIVE SEALANT COMPOSITIONS

Номер: US20130075668A1
Принадлежит: PRC-DeSoto International, Inc.

Embodiments of the present disclosure are directed to sealant compositions including a base composition with at least one sulfur-containing polymer, a curing agent composition, and an electrically conductive filler including carbon nanotubes and stainless steel fibers. The electrically conductive filler can be in either or both of the base composition and the curing agent composition. The sealant compositions are substantially Ni-free and exhibit unexpectedly superior EMI/RFI shielding effectiveness. 1. A sealant composition , comprising:a base composition comprising a sulfur-containing polymer;a curing agent composition comprising a curing agent; andan electrically conductive filler in at least one of the base composition or the curing agent composition, the electrically conductive filler comprising carbon nanotubes and stainless steel fibers.2. The sealant composition of claim 1 , wherein the electrically conductive filler is in the base composition.3. The sealant composition of claim 1 , wherein the electrically conductive filler is in the curing agent composition.4. The sealant composition of claim 1 , wherein the electrically conductive filler is in both the curing agent composition and the base composition.5. The sealant composition of claim 1 , wherein the sealant composition is substantially nickel free.6. The sealant composition of claim 1 , wherein the stainless steel fibers have an average particle dimension larger than an average particle dimension of the carbon nanotubes.7. The sealant composition of claim 1 , wherein the carbon nanotubes have an average particle dimension larger than an average particle dimension of the stainless steel fibers.8. The sealant composition of claim 1 , wherein the carbon nanotubes have an average length dimension of about 5 μm to about 30 μm claim 1 , and an average diameter dimension of about 10 nm to about 30 nm.9. The sealant composition of claim 1 , wherein the stainless steel fibers have an average first dimension of ...

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28-03-2013 дата публикации

METHODS FOR FORMING POLYIMIDE-CARBON NANOTUBE COMPOSITE FILM, AND POLYIMIDE-CARBON NANOTUBE COMPOSITE FILMS FORMED THEREOF

Номер: US20130075671A1
Принадлежит: NANYANG TECHNOLOGICAL UNIVERSITY

A method for forming a polyimide-carbon nanotube composite film on a substrate is provided. The method comprises: suspending carbon nanotubes in a solution comprising a poly(amic acid) and a suitable solvent; casting the solution onto a substrate to form a layer on the substrate; and heating the layer to convert the poly(amic acid) into a polyimide to form the polyimide-carbon nanotube composite film. A polyimide-carbon nanotube composite film and an electronic device comprising the polyimide-carbon nanotube composite film are also provided. 3. The method according to claim 2 , wherein X is a direct bond.4. The method according to claim 2 , wherein R is a carboxyl substituted aryl or a hydroxyl substituted aryl.6. The method according to claim 1 , wherein the molecular weight of the poly(amic acid) is about 1×10g/mol to about 2.5×10g/mol.8. The method according to claim 1 , wherein the carbon nanotubes comprise multi-walled carbon nanotubes.9. The method according to claim 1 , wherein the amount of carbon nanotubes in the solution is about 0.1 wt % to about 30 wt %.10. The method according to claim 1 , wherein the solvent is selected from the group consisting of N—N′-dimethylacetamide (DMAc) claim 1 , N claim 1 ,N-dimethylformamide (DMF) claim 1 , N-methylpyrrolidinone (NMP) claim 1 , tetrahydrofuran (THF) claim 1 , acetone claim 1 , dimethyl sulfoxide (DMSO) claim 1 , and mixtures thereof.11. The method according to claim 1 , wherein heating comprises(a) drying the layer at a temperature of about 50° C. to about 100° C. to remove the solvent; and(b) heating the layer at a temperature of about 100° C. to about 350° C. to imidize the poly(amic acid) to polyimide.12. The method according to claim 1 , further comprising agitating the solution prior to step b).13. The method according to claim 12 , wherein agitating comprises sonicating the solution for more than 5 minutes.14. A polyimide-carbon nanotube composite film formed by the method according to .17. The ...

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28-03-2013 дата публикации

Kit for preparing a conductive pattern

Номер: US20130075672A1
Принадлежит:

The invention relates to a kit for preparing a conductive element comprising a container A containing a liquid dispersion A′, comprising dispersed nanoparticles having a metallic surface and a ligand capable of binding to said surface; a container B—which may be the same or different as the container A containing the liquid dispersion A′—said container B containing a liquid B′ comprising reducible silver ions or other reducible metal ions; and a further container C containing a liquid C′ comprising a reducing agent for the metal ions of the liquid from container B. 1. Kit for preparing a conductive element comprisinga container A containing a liquid dispersion A′, comprising dispersed nanoparticles having a metallic surface and a ligand capable of binding to said surface;a container B—which may be the same or different as the container A containing the liquid dispersion A′—said container B containing a liquid B′ comprising reducible silver ions or other reducible metal ions; anda further container C containing a liquid C′ comprising a reducing agent for the metal ions of the liquid from container B.2. Kit according to claim 1 , wherein at least 90% of the total volume of the nanoparticles is formed by nanoparticles having at least one dimension of 1-100 nm claim 1 , preferably of 1-30 nm.3. Kit according to or claim 1 , wherein the concentration of nanoparticles in the liquid dispersion is at least 0.1 wt. % claim 1 , based on total weight of the dispersion claim 1 , in particular 0.5-25 wt. % claim 1 , more in particular 2-20 wt. % or 5-15 wt. %.4. Kit according to any one of the preceding claims claim 1 , wherein a least one ligand is present selected from the group of aliphatic amines claim 1 , aromatic amines claim 1 , aliphatic quaternary ammonium compounds claim 1 , carboxylic acids and amino acids claim 1 ,{'sub': 3', '18', '1', '18', '1', '6', '1', '18, 'in particular from the group of aliphatic amines comprising one or more alkyl groups, each alkyl group ...

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28-03-2013 дата публикации

Nano-structure arrays for emr imaging

Номер: US20130075699A1
Принадлежит: ROCKWELL COLLINS INC

An electro-magnetic radiation detector is described. The electro-magnetic radiation detector includes a detector material and a voltage biasing element. The detector material includes a substantially regular array of nano-particles embedded in a matrix material. The voltage biasing element is configured to apply a bias voltage to the matrix material such that electrical current is directly generated based on a cooperative plasmon effect in the detector material when electro-magnetic radiation in a predetermined wavelength range is incident upon the detector material, where the dominant mechanism for decay in the cooperative plasmon effect is non-radiative.

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28-03-2013 дата публикации

ADHESIVE WITH ANISOTROPIC ELECTRICAL CONDUCTIVITY AND METHODS OF PRODUCING AND USING SAME

Номер: US20130076371A1
Автор: Buschhorn Samuel
Принадлежит: TuTech Innoovation GmbH

The invention relates to an electrically conductive adhesive, comprising an adhesively acting, curable and electrically non-conductive matrix material and a phase of electrically conductive carbon nanotubes distributed in the matrix material. According to the invention, the carbon nanotubes are present in a plurality of individual macrostructures, and each macrostructure consists of a plurality of agglomerated carbon nanotubes forming and electrical contact among each other. Another aspect of the invention concerns a method of producing such an electrically conductive adhesive, and a method for electrically conductive bonding of two components and for checking the quality of an adhesive bond formed in such a manner. 1. An electrically conductive adhesive , comprising{'b': 6', '41, 'an adhesively acting and electrically non-conductive or weakly conductive matrix material (; ), preferably of a polymer material or a polymerisable material, and'}{'b': '1', 'a phase of electrically conductive carbon nanotubes () distributed in the matrix material,'}{'b': 40', '140', '5, 'i': a', 'c', 'a', 'c, 'characterised in that the carbon nanotubes are present in a plurality of individual macrostructures (-; -; ), that each macrostructure consists of a plurality of agglomerated carbon nanotubes forming electrical contact among each other, and that the macrostructures are present in the matrix material in a concentration that is lower than the percolation threshold of the macrostructures within the matrix material.'}2. The adhesive according to claim 1 ,characterised in that the macrostructures are present with a substantially spherical geometry and that the values for the height, width and length of any macrostructure does not deviate in any of the values by more than 50% from any one of the other values.3. The adhesive according to claim 1 ,characterised in that the macrostructures are present in a form that is achieved by shearing a fluid comprising carbon nanotubes distributed ...

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28-03-2013 дата публикации

Hybrid powder of halloysite nanotube and light-scattering nanoparticle, method for preparing the same, and uvscreening cosmetic composition containing the same as active ingredient

Номер: US20130078293A1
Принадлежит: Individual

The present invention provides a hybrid powder of halloysite nanotubes and light-scattering nanoparticles, a method for preparing the same, and a UV-screening cosmetic composition containing the same as an active ingredient. The hybrid powder of halloysite nanotubes and light-scattering nanoparticles according to the present invention, in which the light-scattering nanoparticles are loaded into the halloysite nanotubes, can prevent the light-scattering nanoparticles from penetrating the skin, which minimizes side effects, and has excellent UV-screening effect. Thus, the hybrid powder of halloysite nanotubes and light-scattering nanoparticles according to the present invention can be effectively used as a UV-screening cosmetic composition.

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28-03-2013 дата публикации

SKIN ANTIAGING TREATMENT

Номер: US20130078295A1
Принадлежит: LIPOTEC S.A.

A method for skin antiaging treatment including administering Botulinum toxin to an area of facial and/or neck skin, combined with the administration of a cosmetic or pharmaceutical composition having a cosmetically or pharmaceutically effective amount of at least one peptide derived from the SNAP-25 protein and/or at least one enkephalin-derived peptide, and at least one cosmetically or pharmaceutically acceptable excipient or adjuvant. 1. A method for skin antiaging treatment comprising:a. The administration of an effective amount of Botulinum toxin to an area of facial and/or neck skin, [{'br': None, 'sub': 1', '2, 'R-AA-R\u2003\u2003(I)'}, 'its stereoisomers, mixtures thereof, and/or its cosmetically or pharmaceutically acceptable salts thereof, in which AA is a sequence selected from the group consisting of SEQ ID No.11, SEQ ID No.4, or a sequence of 7 to 12 adjacent amino acids contained in SEQ ID No.4, wherein said sequence comprises the amino acid sequence of SEQ ID No.11;', 'wherein:', {'sub': 1', '5, 'Ris selected from the group consisting of H, substituted or non-substituted non-cyclic aliphatic group, substituted or non-substituted alicyclyl, substituted or non-substituted heterocyclyl, substituted or non-substituted heteroarylalkyl, substituted or non-substituted aryl, substituted or non-substituted aralkyl and R—C(O)—; and'}, {'sub': 2', '3', '4', '3', '3', '3', '4, 'Ris selected from the group consisting of —NRR, —ORand —SR; where Rand Rare independently selected from the group consisting of H, substituted or non-substituted non-cyclic aliphatic group, substituted or non-substituted alicyclyl, substituted or non-substituted heterocyclyl, substituted or non-substituted heteroarylalkyl, substituted or non-substituted aryl and substituted or non-substituted aralkyl;'}, {'sub': '5', 'wherein Ris selected from the group consisting of H, substituted or non-substituted non-cyclic aliphatic group, substituted or non-substituted alicyclyl, substituted or non- ...

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28-03-2013 дата публикации

Novel quinacridone pigment composition, and method for producing quinacridone microparticles

Номер: US20130078467A1
Принадлежит: M Technique Co Ltd

A quinacridone pigment composition contains quinacridone microparticles which have durability and spectral characteristics equivalent to those required for a magenta color of a dye. The quinacridone pigment composition contains at least one type of quinacridone microparticles, wherein a difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the difference between the maximum and minimum transmittance is 30% or more in a transmission spectrum at 350 nm to 580 nm, or the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the wavelength (λmax) at which the transmittance in a transmission spectrum at 350 nm to 500 nm becomes maximum is less than 430 nm. A method is provided for producing the quinacridone microparticles.

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28-03-2013 дата публикации

METAL PASSIVATOR ADDITIVE AND PROCESS FOR PREPARING

Номер: US20130078468A1
Принадлежит: INDIAN OIL CORPORATION LIMITED

The present invention relates a metal passivator additive comprising: a rare earth component; alumina; clay; colloidal silica; and a zeolite having high silica to alumina ratio. The present invention also relates to a process for preparing a metal passivator additive, said process comprising: preparing a rare earth slurry by mixing rare earth component with water; obtaining an alumina gel by treating alumina slurry with an acid, wherein the alumina slurry is prepared by mixing alumina and water; mixing the alumina gel and the rare earth slurry to obtain a slurry mixture; adding a colloidal silica to the slurry mixture; preparing a clay slurry by mixing clay and a dispersant; combining the clay slurry and the slurry mixture to obtain a rare earth-binder-filler slurry; obtaining an additive precursor slurry by mixing a zeolite having high silica to alumina ratio to the rare earth-binder-filler slurry; spray-drying the additive precursor slurry to obtain a spray-dried product; and calcining the spray-dried product to obtain the metal passivator additive. 1. A metal passivator additive comprising:1 wt % to 50 wt % of a rare earth component;5 wt % to 30 wt % of alumina;10 wt % to 50 wt % of clay;2 wt % to 15 wt % of colloidal silica; and1 wt % to 10 wt % of a zeolite having high silica to alumina ratio.2. The additive as claimed in claim 1 , wherein the rare earth component comprises:80 wt % to 95 wt % of lanthanum oxide;1 wt % to 20 wt % of cerium oxide;0.1 wt % to 5 wt % of neodymium oxide; and0.1 wt % to 5 wt % of praseodymium oxide.3. The additive as claimed in claim 1 , wherein the rare earth component has a surface area in the range of 10 m/g to 150 m/g and particle size in the range of 8 nm to 3000 nm.4. The additive as claimed in claim 1 , wherein the alumina is selected from the group consisting of pseudoboehmite alumina claim 1 , gel alumina claim 1 , bayerite and gamma alumina; or mixtures thereof.5. The additive as claimed in claim 1 , wherein the alumina has ...

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28-03-2013 дата публикации

WHITE REFLECTIVE POLYMER PARTICLES

Номер: US20130078559A1
Принадлежит: Merck Patent GmBH

This invention relates to white reflective polymer particles prepared by a reverse emulsion solvent removal process, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids. 117-. (canceled)18. A process for the preparation of white reflective polymer particles for use in electrophoretic devices , comprising the steps ofa) forming a reverse emulsion comprising at least one polymer, at least one white reflective particle, at least one polar solvent, at least one non-polar solvent, and at least one optionally charged surfactant,b) removing the polar solvent or polar solvents by evaporative methods andc) optionally removing the non-polar solvent or non-polar solvents.19. The process according to claim 18 , wherein the reverse emulsion of step a) is prepared by a1) forming a polar phase by mixing at least one polymer claim 18 , at least one white reflective particle claim 18 , and at least one polar solvent claim 18 , a2) forming a non-polar phase by mixing at least one non-polar solvent claim 18 , and at least one surfactant claim 18 , a3) combining the polar phase and the non-polar phase claim 18 , and a4) homogenising the combined phases to form the reverse emulsion.20. The process according to claim 18 , wherein the white reflective particles comprise an inorganic material having a high refractive index ≧1.8.21. The process according to claim 19 , wherein the white reflective particles are titanium dioxide and/or zinc oxide.22. The process according to claim 18 , wherein the polymer of step a) is hydrophilic and/or charged.23. The process according to claim 18 , wherein the polar solvent used in step a) is water claim 18 , a low molecular weight alcohol claim 18 , acetonitrile claim 18 , DMSO claim 18 , DMF or mixtures thereof.24. The process according to claim 18 , wherein the polar solvent used in step a) is water and/or ethanol.25. The process according to claim 18 , wherein the non-polar solvent used in step a ...

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28-03-2013 дата публикации

REACTIVE MONOMER FOR A COATING AND/OR REACTIVE COATING

Номер: US20130078879A1
Принадлежит: ISP Investments Inc.

Disclosed herein are coating solutions comprising a reactive monomer, process and compositions for preparing the same that are suitable for a coating and/or reactive coating. More particularly, the present invention relates to monomers comprising a multifunctional N-vinylformamide crosslinking moiety and their use in coatings. Also disclosed are applications and compositions comprising coating solutions of a reactive monomer and its application in printing processes and inks. 1. A coating composition comprising at least one reactive monomer , wherein said reactive monomer comprises a multifunctional N-vinylformamide crosslinking moiety , a hybrid N-vinylformamide moiety , or combinations thereof.2. The coating composition of wherein the composition is at least one of a reactive solution or a reactive coating.3. The coating composition of wherein the at least one reactive monomer is 1 claim 1 ,8-Di-(N-vinylformamido)-3 claim 1 ,6-dioxyoctane.4. The coating composition of wherein the coating is a UV curable coating claim 1 , a printing ink claim 1 , or a UV printing ink.5. The coating composition of wherein the coating is conductive.6. The coating composition of wherein the coating is applied to at least one of metal claim 1 , plastic claim 1 , glass claim 1 , or textile.7. The coating composition of wherein the metal is selected from the group consisting of steel claim 6 , iron claim 6 , copper claim 6 , brass claim 6 , gold claim 6 , silver claim 6 , and aluminum.8. The coating composition of wherein the plastic is selected from the group consisting of vinyl claim 6 , polyolefin (PE and PP) claim 6 , Tyvec claim 6 , polyester claim 6 , PVDC claim 6 , and nylon.9. The coating composition of further comprising at least one of a fragrance claim 1 , an anionic initiator claim 1 , a cationic initiator claim 1 , a free radical initiator claim 1 , a metal claim 1 , a carbon pigment claim 1 , a carbon nanotube claim 1 , a graphene sheet claim 1 , or a quantum dot.10. The ...

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28-03-2013 дата публикации

COMPOSITE MATERIAL AND PRODUCTION PROCESS OF DISPERSANT

Номер: US20130079452A1
Автор: Zhang Zuyi
Принадлежит: CANON KABUSHIKI KAISHA

A composite material is constituted by fine nano-oxide particles, a dispersant, and a transparent resin material. The dispersant includes a polymer of vinyl monomer having a binding acidic group. When φ is a dimensionless number defined by an average particle size (nm) of the fine nano-oxide particles divided by nm, the polymer has a degree of polymerization of an integer of 3 or more and 8 ×φ or less with the proviso that the integer is a numerical value obtained by dropping a decimal fraction. The composite material is produced through a step of obtaining a dispersant comprising a polymer by polymerizing a vinyl monomer having a binding acidic group in the presence of polyamine or in an aqueous dilute dispersion, and a step of mixing the dispersant, fine nano-oxide particles, and a transparent resin material. 2. A material according to claim 1 , wherein n is an integer of 6 or less in the formula (1).3. A material according to claim 1 , wherein the dispersant and the nano-oxide particles have a weight ratio of 1/99 to 80/20 claim 1 , and the nano-oxide particles and the transparent resin material have a weight ratio of 0.6/99 to 80/20.4. A material according to claim 1 , wherein the nano-oxide particles are particles of an oxide selected from the group consisting of aluminum oxide claim 1 , titanium oxide claim 1 , niobium oxide claim 1 , tin oxide claim 1 , indium oxide claim 1 , zirconium oxide claim 1 , lanthanum oxide claim 1 , cadmium oxide claim 1 , hafnium oxide claim 1 , erbium oxide claim 1 , neodymium oxide claim 1 , cerium oxide claim 1 , dysprosium oxide claim 1 , and a mixed oxide of these oxides.5. A lens comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a composite material, according to , which has been molded.'}7. A material according to claim 1 , wherein n is an integer of 6 or less in the formula (1).9. A material according to claim 1 , wherein n is an integer of 6 or less in the formula (1).11. A material according to claim 1 , ...

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28-03-2013 дата публикации

PRINTING INK HAVING ENHANCED GLOSS AND LOWER VISCOSITY

Номер: US20130079453A1
Принадлежит: E I DuPont Nemours and Company

This disclosure relates to ink composition, having a viscosity of 0.02-13 Poise, comprising an inorganic pigment surface treated with alumina and at least one silicon based surface treatment selected from the group consisting of polysiloxane and polysiloxane block polymer to form a treated inorganic pigment, wherein the silicon based surface treatment is present in the amount of about 0.3 to about 1%, based on the total weight of the treated inorganic pigment; a binder resin having a glass transition temperature of less than 50° C., and comprising at least one adhesion promoting group; and a solvent based ink vehicle having the following solubility parameters using the MPaunits: σof greater than about 15.9, a σof less than about 9.1 and a σof less than about 12.1. These inks have enhanced gloss and lower viscosity characteristics. 1. An ink composition , having a viscosity of 0.02-13 Poise , comprising:(a) an inorganic pigment surface treated with alumina and at least one silicon based surface treatment selected from the group consisting of polysiloxane and polysiloxane block polymer to form a treated inorganic pigment, wherein the silicon based surface treatment is present in the amount of about 0.3 to about 1%, based on the total weight of the treated inorganic pigment;(b) a binder resin having a glass transition temperature of less than 50° C., and comprising at least one adhesion promoting group; and{'sup': '1/2', 'sub': d', 'p', 'h, '(c) a solvent based ink vehicle having the following solubility parameters using the MPaunits: σof greater than about 15.9, a σof less than about 9.1 and a σof less than about 12.1.'}2. The ink composition of wherein the inorganic pigment is selected from the group consisting of a metal oxide claim 1 , mixed metal oxide claim 1 , metal hydroxide claim 1 , metal sulfide claim 1 , metal carbonate claim 1 , metal sulfate claim 1 , silica claim 1 , and mixtures thereof claim 1 , wherein the metal is selected from the group consisting ...

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04-04-2013 дата публикации

STRONTIUM CERATE LUMINESCENT MATERIAL AND THE PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20130082208A1

Disclosed is a strontium cerate luminescent material having a chemical formula of SrCeO:xM and comprising the luminescent material SrCeOand metal nanoparticle M, and the preparation method thereof, where M is at least one of Ag, Au, Pt and Pd, and x is a molar ratio of M to the luminescent material SrCeOand Подробнее

04-04-2013 дата публикации

Consolidation Methodologies for Semiconductor Nanomaterials

Номер: US20130082212A1
Принадлежит: Evident Technologies Inc

Embodiments of the invention relate generally to methods of consolidating semiconductor nanomaterials. In one embodiment, the invention provides a method of consolidating a material comprising: mixing a population of semiconductor nanocrystals with a matrix material and a solvent; heating the mixture to remove the solvent; and consolidating the semiconductor nanocrystals and the matrix material into a consolidated material

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04-04-2013 дата публикации

CONDUCTIVE SEALANT COMPOSITIONS

Номер: US20130082214A1
Принадлежит: PRC-DeSoto International, Inc.

Embodiments of the present disclosure are directed to sealant compositions comprising a base composition comprising at least one sulfur-containing polymer, and an electrically conductive filler comprising carbon nanotubes and conductive carbon black; and a curing agent composition. The sealant compositions are substantially Ni-free, are particularly useful in lightning strike applications, and exhibit unexpectedly superior tensile elongation and low specific gravity. 1. A sealant composition , comprising:a base composition comprising a sulfur-containing polymer;a curing agent composition comprising a curing agent; andan electrically conductive filler in at least one of the base composition or the curing agent composition, the electrically conductive filler comprising carbon nanotubes and conductive carbon black.2. The sealant composition of claim 1 , wherein the conductive carbon black is or Black Pearls® carbon.3. The sealant composition of claim 1 , wherein the electrically conductive filler is in the base composition.4. The sealant composition of claim 1 , wherein the electrically conductive filler is in the curing agent composition.5. The sealant composition of claim 1 , wherein the electrically conductive filler is both the curing agent composition and the base composition.6. The sealant composition of claim 1 , wherein the sealant composition is substantially nickel free.7. The sealant composition of claim 1 , wherein the conductive carbon black has an average particle diameter larger than an average particle diameter of the carbon nanotubes.8. The sealant composition of claim 1 , wherein the carbon nanotubes have an average particle diameter larger than an average particle diameter of the conductive carbon black.9. The sealant composition of claim 1 , wherein the carbon nanotubes have a length dimension of about 5 μm to about 30 μm claim 1 , and a diameter dimension of about 10 nm to about 30 nm.10. The sealant composition of claim 1 , wherein the conductive ...

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04-04-2013 дата публикации

SINTERED OXIDE MATERIAL, TARGET COMPRISING SAME, AND OXIDE SEMICONDUCTOR THIN FILM

Номер: US20130082218A1
Принадлежит:

An oxide sintered body including an oxide of indium and aluminum and having an atomic ratio Al/(Al+In) of 0.01 to 0.08. 1. An oxide sintered body comprising an oxide of indium and aluminum and having an atomic ratio Al/(Al+In) of 0.01 to 0.08.2. A method for producing the oxide sintered body according to claim 1 , comprising the steps of:mixing indium oxide powder having an average particle size of less than 1.2 μm and aluminum oxide powder having an average particle size of less than 1.2 μm such that the atomic ratio Al/(Al+In) becomes 0.01 to 0.08 to prepare mixture powder;shaping the mixture powder to produce a shaped body; andfiring the shaped body at 1100° C. to 1550° C. for 8 hours or more.3. The method for producing the oxide sintered body according to claim 2 , wherein the firing is conducted in the atmosphere of an oxidizing gas.4. A target obtained by processing the oxide sintered body according to .5. An oxide semiconductor thin film which is obtained by sputtering the target according to to form a thin film claim 4 , followed by annealing the thin film claim 4 , wherein the thin film has an atomic ratio Al/(AL+In) of 0.01 to 0.08 and has a bixbyite structure of indium oxide.6. The oxide semiconductor thin film according to claim 5 , wherein the sputtering is conducted at a water partial pressure of 5×10to 7×10Pa.7. A thin film transistor having the oxide semiconductor thin film according to as the channel layer.8. A display comprising the thin film transistor according to . The invention relates to an oxide sintered body, a target comprising the same and an oxide semiconductor thin film.Field effect transistors, such as a thin film transistor (TFT), are widely used as the unit electronic device of a semiconductor memory integrated circuit, a high frequency signal amplification device, a device for a liquid crystal drive, or the like, and they are electronic devices which are currently most widely put into practical use. Of these, with significant ...

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04-04-2013 дата публикации

ANTIBACTERIAL NANOFIBER

Номер: US20130082424A1
Принадлежит: NISSHINBO INDUSTRIES, INC.

Disclosed is an antibacterial nanofiber which comprises a polymer having an electron-withdrawing group and/or an electron-withdrawing atomic group and has an average fiber diameter of not less than 1 nm and less than 1000 nm, wherein the ratio of the binding energy of the minimum unit of the polymer at 25° C. to the binding energy of the electron-withdrawing group and/or the electron-withdrawing atomic group contained in the minimum unit of the polymer at 25° C. is 0.13 or greater. The nanofiber has an antibacterial activity by itself, and therefore can exhibit an antibacterial activity without the need of adding any antibacterial agent. 1. A method of imparting an antibacterial activity to a nanofiber , comprising:spinning a polymer possessing electron-withdrawing groups and/or electron-withdrawing atomic groups, wherein the polymer has a ratio of the bond energy at 25° C. of electron-withdrawing groups and/or electron-withdrawing atomic groups present in a smallest unit of the polymer to the bond energy at 25° C. of the smallest unit of the polymer of at least 0.13, andobtaining a nanofiber having an average fiber diameter of at least 1 nm but less than 1,000 nm,said nanofiber itself exhibiting an antibacterial activity.2. The method of wherein claim 1 , in surface functional group measurement using an acid-base titration method claim 1 , the ratio of functional groups in a specific weight of the nanofiber to functional groups in a film of the same weight that is formed of the polymer is at least 1.3.3. The method of or wherein the nanofiber is composed solely of the polymer having electron-withdrawing groups and/or electron-withdrawing atomic groups.4. The method of claim 1 , wherein the polymer is a polyester resin claim 1 , a polyamide resin claim 1 , a polyurethane resin claim 1 , a polyacrylonitrile resin claim 1 , a polyamideimide resin claim 1 , a polyvinyl chloride resin or a polystyrene resin.5. The method of claim 4 , wherein the polymer is a water- ...

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04-04-2013 дата публикации

COMPOSITE LAYER CONTAINING A LAYER OF PHOSPHORS AND RELATED ELECTROLUMINESCENT DEVICE

Номер: US20130082587A1
Принадлежит: SAES GETTERS S.P.A.

Solutions to improve the properties of the phosphors and electroluminescent devices are described, using phosphors in combination with zeolites for converting UV or Blue radiation into visible radiation. 1. A composite layer for conversion of UV or blue radiation into a visible radiation , containing a layer of phosphors combined with zeolites of nanometric size , wherein at least 95% of the nanometric zeolites have dimensions between 60 and 400 nm.2. The composite layer according to wherein said nanometric zeolites are dispersed in a transparent polymeric matrix.3. The composite layer according to wherein said nanometric zeolites are uniformly dispersed with the phosphors.4. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 80 and 150 nm.5. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 90 and 110 nm.6. The composite layer according to wherein said nanometric zeolites form a covering layer positioned over said layer of phosphors.7. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 250 and 350 nm.8. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 280 and 320 nm.9. The composite layer according to wherein said nanometric zeolites form an intermediate layer positioned between said layer of phosphors and a transparent substrate.10. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 60 and 100 nm.11. The composite layer according to wherein at least 95% of said nanometric zeolites have dimensions comprised between 70 and 90 nm.12. An electroluminescent device comprising a composite layer for conversion of UV or blue radiation into a visible radiation claim 10 , containing a layer of phosphors combined with zeolites of nanometric size wherein ...

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