Possessing Nanosized Particles, Powders, Flakes, Or Clusters Other Than Simple Atomic Impurity Doping Patents (Class 977/779)
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Patent number: 12139625Abstract: Methods can be used for producing three-dimensional objects by powder bed fusion, using inks containing superparamagnetic particles and solvents. Sintering is performed by a magnetic field having a frequency of 50 kHz to 5 GHz.Type: GrantFiled: February 3, 2021Date of Patent: November 12, 2024Assignee: Evonik Operations GmbHInventors: Odo Wunnicke, Susanne Leuchs, Tim Hupfeld, Michael Holthausen, Vanessa Vennemann, Dominik Mispelkamp, Maximilian Cornelius, Helmut Mack, Bodo Frings, Thomas Große-Puppendahl, Sylvia Monsheimer, Frank Heindl
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Patent number: 12048901Abstract: The invention relates to a method for a fabrication of a pore comprising membrane and a pore comprising membrane. The pore comprising membrane (1) comprises at least a porous metallic layer (3) on a porous substrate (6), wherein the porous metallic layer (3) is connected to the porous substrate (6) and the pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6). The method comprises at least the following steps: i) deposition of the metallic layer (3) onto a support material (2), wherein the deposited metallic layer (3) forms a plurality of feedthroughs, in particular a percolation network on the support material (2), ii) removal of the support material (2), iii) connecting of the metallic layer (3) with the porous substrate (6) such that pores (4) of the metallic layer (3) overlap at least partially with the pores (7) of the porous substrate (6).Type: GrantFiled: November 14, 2019Date of Patent: July 30, 2024Assignee: ETH ZURICHInventors: Hyung Gyu Park, Roman Wyss
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Patent number: 9040428Abstract: Hemispheres and spheres are formed and employed for a plurality of applications. Hemispheres are employed to form a substrate having an upper surface and a lower surface. The upper surface includes peaks of pillars which have a base attached to the lower surface. The peaks have a density defined at the upper surface by an array of hemispherical metal structures that act as a mask during an etch to remove substrate material down to the lower surface during formation of the pillars. The pillars are dense and uniform and include a microscale average diameter. The spheres are formed as independent metal spheres or nanoparticles for other applications.Type: GrantFiled: September 7, 2012Date of Patent: May 26, 2015Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Augustin J. Hong, Woo-Shik Jung, Jeehwan Kim, Jae-Woong Nahum, Devendra K. Sadana
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Patent number: 9034978Abstract: Methods for the synthesis of metal quantum clusters within the framework of a porous gel matrix are described. For example, Ag25(glutathione)18 quantum clusters are synthesized in a cross-linked polyacrylamide gel matrix. The methods can be performed on large-scale and yields monodispersed metal quantum clusters.Type: GrantFiled: December 22, 2011Date of Patent: May 19, 2015Assignee: Indian Institute of Technology MadrasInventors: Pradeep Thalappil, Udayabhaskararao Thumu
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Patent number: 9028982Abstract: Disclosed is a composite material wherein adhesion between a silicon surface and a plating material is enhanced. A method and an apparatus for producing the composite material are also disclosed.Type: GrantFiled: March 2, 2009Date of Patent: May 12, 2015Assignee: Japan Science and Technology AgencyInventors: Shinji Yae, Tatsuya Hirano, Hitoshi Matsuda
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Patent number: 9023659Abstract: Disclosed is a quantum dot-embedded silica nanoparticle having plural quantum dots embedded within the silica nanoparticle, wherein the number of quantum dots existing in a concentric area within 10% of a radius from a center of the silica nanoparticle accounts for 10 to 70% of the number of total quantum dots embedded in the silica nanoparticle.Type: GrantFiled: March 1, 2010Date of Patent: May 5, 2015Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takuji Aimiya, Masaru Takahashi
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Patent number: 9017580Abstract: The present invention relates to polymer composite materials, more particularly relates to composite materials with tailor made surface electrical resistivities in the range of 109 to 10?1 ?/sq. and process of making the same. The process for preparing Fiber 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.Type: GrantFiled: November 22, 2010Date of Patent: April 28, 2015Assignee: The Director General, Defence Research & Development Organisation (DRDO)Inventors: Samudra Dasgupta, Madishetty Narayana Rao Jagdish Kumar, Sundaram Sankaran
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Patent number: 9012519Abstract: The present invention relates to a pharmaceutical composition comprising a pharmaceutical agent and a pharmaceutically acceptable carrier, which carrier comprises a protein, for example, human serum albumin and/or deferoxamine. The human serum albumin is present in an amount effective to reduce one or more side effects associated with administration of the pharmaceutical composition. The invention also provides methods for reducing one or more side effects of administration of the pharmaceutical composition, methods for inhibiting microbial growth and oxidation in the pharmaceutical composition, and methods for enhancing transport and binding of a pharmaceutical agent to a cell.Type: GrantFiled: February 26, 2013Date of Patent: April 21, 2015Assignee: Abraxis Bioscience, LLCInventors: Neil P. Desai, Patrick Soon-Shiong, Vuong Trieu
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Patent number: 9012518Abstract: The present invention relates to a pharmaceutical composition comprising a pharmaceutical agent and a pharmaceutically acceptable carrier, which carrier comprises a protein, for example, human serum albumin and/or deferoxamine. The human serum albumin is present in an amount effective to reduce one or more side effects associated with administration of the pharmaceutical composition. The invention also provides methods for reducing one or more side effects of administration of the pharmaceutical composition, methods for inhibiting microbial growth and oxidation in the pharmaceutical composition, and methods for enhancing transport and binding of a pharmaceutical agent to a cell.Type: GrantFiled: February 26, 2013Date of Patent: April 21, 2015Assignee: Abraxis BioScience, LLCInventors: Neil P. Desai, Patrick Soon-Shiong, Vuong Trieu
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Patent number: 9011710Abstract: 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.Type: GrantFiled: April 1, 2010Date of Patent: April 21, 2015Assignee: Arizona Board of Regents on behalf of the University of ArizonaInventors: Palash Gangopadhyay, Alejandra Lopez-Santiago, Robert A. Norwood
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Patent number: 8987369Abstract: This invention relates to compositions comprising blends of acrylic add polymers and/or ethylene acrylic add copolymers and colloidal silica modified with certain aromatic aminosilanes, aromatic aminoalkylsilanes, alkenyl aminoalkylsilanes, secondary or tertiary aliphatic aminosilanes. These compositions can provide improved properties such loss modulus, storage modulus, creep resistance, and wear resistance, without sacrificing optical clarity.Type: GrantFiled: June 30, 2011Date of Patent: March 24, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Paul Gregory Bekiarian, Gregory Scott Blackman, Gordon Mark Cohen
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Patent number: 8986510Abstract: It is intended to provide a method whereby a target to be analyzed can be easily decomposed in a micro region and a decomposition apparatus. In the decomposition method of decomposing the target to be analyzed and the decomposition apparatus, the target is allowed to coexist with a microparticle and then the microparticle is put into the high-energy state. Then, the target located in the vicinity of the surface of the microparticle is decomposed due to the energy transfer from the high-energy microparticle toward the target. Thus, the target can be easily decomposed in a micro region.Type: GrantFiled: May 9, 2006Date of Patent: March 24, 2015Assignee: Genesis Research Institute, Inc.Inventors: Yoshihiro Takeda, Fumitaka Mafune, Tamotsu Kondou
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Patent number: 8981004Abstract: Disclosed is a method of making a polystyrene based nanocomposite by combining a monomer with a nanoparticle to form a mixture and subjecting the mixture to polymerization conditions to produce a polymeric composite. In an embodiment the nanoparticle has been treated with an additive prior to combining with the monomer and the additive contains a silane moiety.Type: GrantFiled: December 20, 2013Date of Patent: March 17, 2015Assignee: Fina Technology, Inc.Inventors: James R. Butler, David W. Knoeppel
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Patent number: 8968589Abstract: A composite material comprises a filled skutterudite matrix of formula (I) IyCo4Sb12 in which (I) represents at least one of Yb, Eu, Ce, La, Nd, Ba and Sr, 0.05?y<1; and GaSb particles within the filled skutterudite matrix, wherein the composite material comprises 0.05-5 mol % GaSb particles. Compared with conventional materials, the composite material exhibits a substantially increased Seebeck coefficient, a slightly decreased overall thermal conductivity, and a substantially increased thermoelectric performance index across the whole temperature zone from the low temperature end to the high temperature end, as well as a greatly enhanced thermoelectric efficiency.Type: GrantFiled: September 23, 2010Date of Patent: March 3, 2015Assignee: Shanghai Institute of Ceramics, Chinese Academy of SciencesInventors: Lidong Chen, Xihong Chen, Lin He, Xiangyang Huang, Zhen Xiong, Wenqing Zhang
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Patent number: 8969225Abstract: A method includes a providing a molten glass fiber core and disposing a plurality of nanoparticles that include a transition metal oxide on the molten glass fiber core at or above the softening temperature of the glass fiber core, thereby forming a nanoparticle-laden glass fiber. The plurality of nanoparticles are embedded at the surface of said glass fiber core. A method includes providing a mixture of molten glass and a plurality of nanoparticles. The plurality of nanoparticles include a transition metal. The method further includes forming nanoparticle-laden glass fibers, in which the plurality of nanoparticles are embedded throughout the glass fibers.Type: GrantFiled: July 29, 2010Date of Patent: March 3, 2015Assignee: Applied Nano Structured Soultions, LLCInventors: Tushar K. Shah, Harry C. Malecki
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Patent number: 8940193Abstract: One or more embodiments provide for a device that utilizes voltage switchable dielectric material having semi-conductive or conductive materials that have a relatively high aspect ratio for purpose of enhancing mechanical and electrical characteristics of the VSD material on the device.Type: GrantFiled: June 10, 2011Date of Patent: January 27, 2015Assignee: Littelfuse, Inc.Inventors: Lex Kosowsky, Robert Fleming
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Patent number: 8936935Abstract: The present invention relates to a population of monodisperse magnetic nanoparticles with a diameter between 1 and 100 nm which are coated with a layer with hydrophilic end groups. Herein the layer with hydrophilic end groups comprises an inner layer of monosaturated and/or monounsaturated fatty acids bound to said nanoparticles and bound to said fatty acids, an outer layer of a phospholipid conjugated to a monomethoxy polyethyleneglycol (PEG) comprising a hydrophilic end group, or comprises a covalently bound hydrophilic layer bound to said nanoparticles.Type: GrantFiled: May 19, 2011Date of Patent: January 20, 2015Assignees: IMEC, Katholieke Universiteit Leuven, K.U. Leuven R&DInventors: Deepak Balaji Thimiri Govinda Raj, Liesbet Lagae, Wim Annaert, Gustaaf Borghs
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Patent number: 8920682Abstract: The disclosure generally relates to a dispersion of nanoparticles in a liquid medium. The liquid medium is suitably water-based and further includes an ionic liquid-based stabilizer in the liquid medium to stabilize the dispersion of nanoparticles therein. The stabilizer can be polymeric or monomeric and generally includes a moiety with at least one quaternary ammonium cation from a corresponding ionic liquid. The dispersion suitably can be formed by shearing or otherwise mixing a mixture/combination of its components. The dispersions can be used to form nanoparticle composite films upon drying or otherwise removing the liquid medium carrier, with the stabilizer providing a nanoparticle binder in the composite film. The films can be formed on essentially any desired substrate and can impart improved electrical conductivity and/or thermal conductivity properties to the substrate.Type: GrantFiled: March 18, 2011Date of Patent: December 30, 2014Assignee: Eastern Michigan UniversityInventor: John Texter
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Publication number: 20140369024Abstract: The invention provides a process for the production of a solid polymer with embedded luminescent nano particles, comprising (1) mixing luminescent nano particles with an outer surface coated with capping molecules comprising a first functional group and a second functional group and a precursor of a solid polymer, and (2) allowing the solid polymer to be formed; wherein the first functional group is configured to bind to the outer surface of the quantum dot and the second functional group is miscible with the precursor of the solid polymer and/or is able to react with the precursor of the solid polymer. The invention also provides a luminescent polymeric article comprising a solid polymer with in the polymer article embedded luminescent nano particles with an outer surface coated with capping molecules comprising a first functional group and a second functional group.Type: ApplicationFiled: January 25, 2013Publication date: December 18, 2014Applicant: Koninklijke Philips N.V.Inventors: Shu Xu, Rifat Ata Mustafa Hikmet
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Patent number: 8911854Abstract: The present invention provides an optical film and s retardation film characterized in that each of them includes: an acrylic resin; and 20-65 parts by weight of at least two graft copolymers containing a conjugated diene-based rubber, based on 100 parts by weight of the acrylic resin, wherein at least two of the graft copolymers have different particle sizes. The present invention also provides a production method therefore.Type: GrantFiled: June 3, 2009Date of Patent: December 16, 2014Assignee: LG Chem, Ltd.Inventors: Byoung-II Kang, Chang-Hun Han, Chan-Hong Lee, Dae-Woo Lee, Jae-Bum Seo, Sang-Seop Kim
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Patent number: 8883882Abstract: The invention relates to a non-aqueous dispersion of organic polymer particles in a reactive diluent. Said non-aqueous dispersion can be obtained in that at least one monomer is polymerized in the reactive diluent, forming the organic polymer particles, wherein the reactive diluent does not participate in said polymerization due to the orthogonal reactivity thereof relative to the monomers, but comprises a functionality allowing later targeted polymerization. Depending on the organic polymer particles or reactive diluents used, the non-aqueous dispersion can be used in multifaceted applications having a wide range of application profiles. In order to produce said non-aqueous dispersion, polymerization of at least one monomer in a stirred tank reactor in the presence of a reactive diluent is particularly suitable, wherein the conversion is performed at a stirring speed of at least 2 m/s, wherein the ratio of the stirrer diameter to the vessel diameter is set to 0.3-0.Type: GrantFiled: March 31, 2010Date of Patent: November 11, 2014Assignee: Dritte Patentportfolio Beteiligungygesellschaft MbH & Co. KGInventors: Nicolas Boge, Torsten Stachelhaus, Andreas Kreipl, Dalibor Vukadlnovic-Tenter, Klaus-Uwe Koch, Daniel Junghans, Angela Kaufmann, Nicole Jagielski, Judith Schmidt
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Patent number: 8878341Abstract: Disclosed herein is a composite material comprising a relaxor ferroelectric material and a hydrazine-reduced graphene oxide, wherein the weight ratio of the composite material to the hydrazine-reduced graphene oxide is 9:1 to 200:1. The composite materials have high dielectric permittivity and low dielectric losses and can be used to manufacture various high dielectric permittivity components.Type: GrantFiled: October 8, 2013Date of Patent: November 4, 2014Assignee: Saudi Basic Industries CorporationInventors: Mahmoud N. Almadhoun, Husam N. Alshareef, Unnat S. Bhansali, Prince Xavier, Ihab N. Odeh
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Patent number: 8877835Abstract: Composite material comprising—one or more heat-activatable free-radical initiators selected from the group consisting of organic peroxides and/or initiators having labile carbon-carbon bonds and particles which have a core-shell structure and the core of which comprises one or more magnetic materials, while the shell comprises silicon dioxide.Type: GrantFiled: May 28, 2010Date of Patent: November 4, 2014Assignees: Evonik Degussa GmbH, United Initiatiors GmbH & Co. KGInventors: Harald Herzog, Konrad Rockstein, Stipan Katusic, Martin Kunz, Iris Nagl, Hanno Wolf
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Patent number: 8877836Abstract: The present invention is a drying composition comprising spherical beads and a stable aqueous dispersion of polymer particles and also a dried composition of the spherical beads and a polymer film. The composition is useful as a wall repair formulation.Type: GrantFiled: June 6, 2012Date of Patent: November 4, 2014Assignee: Rohm and Haas CompanyInventors: Adam Fasula, James Bohling
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Publication number: 20140313574Abstract: Disclosed are methods for forming nanoparticle films using electrophoretic deposition. The methods comprise exposing a substrate to a solution, the solution comprising substantially dispersed nanoparticles, an organic solvent, and a polymer characterized by a backbone comprising Si—O groups. The methods further comprise applying an electric field to the solution, whereby a nanoparticle film is deposited on the substrate. Suitable polymers include polysiloxanes, polysilsesquioxanes and polysilicates. Coated glass windows and methods of forming the coated glass windows using the solutions are also disclosed.Type: ApplicationFiled: January 14, 2014Publication date: October 23, 2014Applicant: SOUTH DAKOTA STATE UNIVERSITYInventors: Braden Bills, Nathan Morris, Qi Hua Fan, Mukul Dubey, David Galipeau
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Patent number: 8846771Abstract: The present invention relates to a pharmaceutical composition comprising a pharmaceutical agent and a pharmaceutically acceptable carrier, which carrier comprises a protein, for example, human serum albumin and/or deferoxamine. He human serum albumin is present in an amount effective to reduce one or more side effects associated with administration of the pharmaceutical composition. The inventor also provides methods for reducing on or more side effects of administration of the pharmaceutical composition, and methods for enhancing transport and binding of a pharmaceutical agent to a cell.Type: GrantFiled: October 11, 2012Date of Patent: September 30, 2014Assignee: Abraxis BioScience, LLCInventors: Neil P. Desai, Patrick Soon-Shiong, Vuong Trieu
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Patent number: 8840803Abstract: A nanocomposite fluid includes a fluid medium; and a nanoparticle composition comprising nanoparticles which are electrically insulating and thermally conductive. A method of making the nanocomposite fluid includes forming boron nitride nanoparticles; dispersing the boron nitride nanoparticles in a solvent; combining the boron nitride nanoparticles and a fluid medium; and removing the solvent.Type: GrantFiled: February 2, 2012Date of Patent: September 23, 2014Assignee: Baker Hughes IncorporatedInventors: Oleg A. Mazyar, Ashley Leonard, Joshua C. Falkner
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Publication number: 20140264193Abstract: Quantum dots (QDs) are encapsulated within microbeads having a silyl surface shell. The microbeads are prepared by copolymerizing unsaturated resins and an unsaturated organosilane in the presence of QDs. During the copolymerization, the unsaturated resin and the organosilane phase separate, forming beads having a silyl surface shell surrounding an essentially unsilylated interior. The QDs are encapsulated within the interior. The silyl shell provides a barrier against oxygen and other contaminants diffusing into the bead and reacting with the QDs.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Inventors: Siobhan Daniels, Imad Naasani
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Patent number: 8828533Abstract: A conductive mesoporous carbon composite comprising conductive carbon nanoparticles contained within a mesoporous carbon matrix, wherein the conductive mesoporous carbon composite possesses at least a portion of mesopores having a pore size of at least 10 nm and up to 50 nm, and wherein the mesopores are either within the mesoporous carbon matrix, or are spacings delineated by surfaces of said conductive carbon nanoparticles when said conductive carbon nanoparticles are fused with each other, or both. Methods for producing the above-described composite, devices incorporating them (e.g., lithium batteries), and methods of using them, are also described.Type: GrantFiled: January 12, 2012Date of Patent: September 9, 2014Assignee: UT-Battelle, LLCInventors: Sheng Dai, Pasquale Fernando Fulvio, Richard T. Mayes, Xiqing Wang, Xiao-Guang Sun, Bingkun Guo
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Patent number: 8828277Abstract: A method of producing a nanocomposite thermoelectric conversion material includes preparing a solution that contains salts of a plurality of first elements constituting a thermoelectric conversion material, and a salt of a second element that has a redox potential lower than redox potentials of the first elements; precipitating the first elements, thereby producing a matrix-precursor that is a precursor of a matrix made of the thermoelectric conversion material, by adding a reducing agent to the solution; precipitating the second element in the matrix-precursor, thereby producing slurry containing the first elements and the second element, by further adding the reducing agent to the solution; and alloying the plurality of the first elements, thereby producing the matrix (70) made of the thermoelectric conversion material, and producing nano-sized phonon-scattering particles (80) including the second element, which are dispersed in the matrix (70), by filtering and washing the slurry, and then, heat-treating tType: GrantFiled: June 18, 2010Date of Patent: September 9, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junya Murai, Takuji Kita
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Patent number: 8822970Abstract: Provided are a phase-change memory device using insulating nanoparticles, a flexible phase-change memory device and a method for manufacturing the same. The phase-change memory device includes an electrode, and a phase-change layer in which a phase change occurs depending on heat generated from the electrode, wherein insulating nanoparticles formed from a self-assembled block copolymer are provided between the electrode and the phase-change layer undergoing crystallization and amorphization.Type: GrantFiled: February 21, 2012Date of Patent: September 2, 2014Assignee: Korea Advanced Institute of Science and Technology (KAIST)Inventors: Yeon Sik Jung, Keon Jae Lee, Jae Won Jeong, Jae Suk Choi, Geon Tae Hwang, Beom Ho Mun, Byoung Kuk You, Seung Jun Kim
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Patent number: 8815267Abstract: 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.Type: GrantFiled: September 26, 2011Date of Patent: August 26, 2014Inventors: Yong Jae Suh, Myung Eun Ju, Dae Sup Kil, Sung Wook Cho
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Patent number: 8801935Abstract: A process for preparing a reverse osmosis membrane that includes: (A) providing a polyamine, a polyfunctional acid halide, and a flux increasing additive having the formula Z+B? where Z+ is an easily dissociable cation and B? is a beta-diketonate; (B) combining the polyamine, polyfunctional acid halide, and flux increasing additive on the surface of a porous support membrane; and (C) interfacially polymerizing the polyamine and the polyfunctional acid halide, and flux increasing additive on the surface of the porous support membrane to form a reverse osmosis membrane comprising (i) the porous support membrane and (ii) a discrimination layer comprising a polyamide. The reverse osmosis membrane is characterized by a flux that is greater than the flux of the same membrane prepared in the absence of the flux increasing additive.Type: GrantFiled: November 10, 2011Date of Patent: August 12, 2014Assignee: NanoH2O, Inc.Inventors: Jeffrey Alan Koehler, Christopher James Kurth
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Patent number: 8805586Abstract: The present invention relates to a system for optimizing and controlling the particle size distribution and scale-up of production of nanoparticle in an aerosol flame reactor. The method provides nanoparticles with desired, optimized and controlled particle size and the specific surface area in aerosol reactors using a simulation tool with programmed instructions. The simulation tool couples flame dynamics model and particle population balance model.Type: GrantFiled: July 11, 2011Date of Patent: August 12, 2014Assignee: Tata Consultancy Services LimitedInventors: Venkataramana Runkana, Venkata Sudheendra Buddhiraju, Nagaravi Kumar Varma Nadimpalli
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Publication number: 20140203213Abstract: Methods for the synthesis of metal quantum clusters within the framework of a porous gel matrix are described. For example, Ag25(glutathione)18 quantum clusters are synthesized in a cross-linked polyacrylamide gel matrix. The methods can be performed on large-scale and yields monodispersed metal quantum clusters.Type: ApplicationFiled: December 22, 2011Publication date: July 24, 2014Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRASInventors: Pradeep Thalappil, Udayabhaskararao Thumu
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Patent number: 8785623Abstract: The present invention relates to ferromagnetic materials based on nano-sized bacterial cellulose templates. More specifically, the present invention provides an agglomerate free magnetic nanoparticle cellulose material and a method of forming such magnetic nanoparticle cellulose material. Further, the magnetic nonoparticles are physically attached on the cellulose material and evenly distribute.Type: GrantFiled: March 31, 2008Date of Patent: July 22, 2014Assignee: Cellutech ABInventors: Richard T. Olsson, My Ahmed Said Samir Azizi, Lars Berglund, Ulf W. Gedde
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Patent number: 8778492Abstract: A composition comprising multistage polymeric particles having an average particle diameter from 0.5 to 15 ?m and a Vicker's scale hardness from 100 to 700 Kgf/mm2; and a film-forming polymer having Tg no greater than 80° C. The refractive index difference measured from 400 nm to 800 nm between the polymeric particles and the film-forming polymer is no greater than 0.02 and the average refractive index difference measured from 800 nm to 2500 nm between the polymeric particles and the film-forming polymer is at least 0.04.Type: GrantFiled: April 10, 2013Date of Patent: July 15, 2014Assignee: Rohm and Haas CompanyInventors: Edward E. LaFleur, Luu T. Le, Edwin Nungesser
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Patent number: 8778493Abstract: A composition comprising multistage polymeric particles having an average particle diameter from 0.5 to 15 ?m and a Vicker's scale hardness from 100 to 700 Kgf/mm2; and a film-forming polymer having Tg no greater than 80° C. The refractive index difference measured from 400 nm to 800 nm between the polymeric particles and the film-forming polymer is no greater than 0.02 and the average refractive index difference measured from 800 nm to 2500 nm between the polymeric particles and the film-forming polymer is at least 0.04.Type: GrantFiled: April 10, 2013Date of Patent: July 15, 2014Assignee: Rohm and Haas CompanyInventors: Edward E. Lafleur, Luu T. Le, Edwin Nungesser
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Patent number: 8771661Abstract: This invention relates to high surface area materials, such as nanoparticles, that are coated with metal ions. These modified nanoparticles have active sites that bind various gases and/or odorous compounds, thereby removing these compounds from a medium such as air or water. Metal ions are adsorbed onto the surface of the nanoparticle and bound strongly to the surface. By selection of the metal ion, specific gaseous compounds and/or odorous compounds can be targeted and removed efficiently and effectively from both aqueous phase and from the air. The modified nanoparticles are useful in numerous article of manufacture for industrial and consumer use.Type: GrantFiled: April 19, 2012Date of Patent: July 8, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventor: John Gavin MacDonald
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Publication number: 20140166945Abstract: Ceramic compositions having a dispersion of nano-particles therein and methods of fabricating ceramic compositions having a dispersion of nano-particles therein are described. In an example, a method of forming a composition having a dispersion of nano-particles therein includes forming a mixture of semiconductor nano-particles and ceramic precursor molecules. A ceramic matrix is formed from the ceramic precursor molecules. The ceramic matrix includes a dispersion of the semiconductor nano-particles therein. In another example, a composition includes a medium including ceramic precursor molecules. The medium is a liquid or gel at 25 degrees Celsius. A plurality of semiconductor nano-particles is suspended in the medium.Type: ApplicationFiled: December 3, 2013Publication date: June 19, 2014Inventors: Juanita N. Kurtin, Georgeta Masson
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Patent number: 8734685Abstract: The present invention relates to design and development of carbon nanotubes (CNT) reinforced electrically conducting synthetic foams comprising resin matrix system, carbon nanotubes, hollow glass microspheres and optionally hardener or catalyst for electrical conductivity and related applications especially electromagnetic interference (EMI) shielding.Type: GrantFiled: February 9, 2009Date of Patent: May 27, 2014Assignee: Director General, Defence Reserch & Development OrganizationInventors: Sundaram Sankaran, Samudra Dasgupta, Ravi Sekhar Kandala, Ravishankar Bare Narayana
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Patent number: 8715533Abstract: There are provided a high-permittivity dielectric raw material, an antenna device using the raw material and being useful as, especially, the built-in antenna device of a portable phone; a portable phone which can be reduced in weight, thickness and size, with an antenna radiation efficiency improved, and an electromagnetic wave shielding body for effectively shielding electromagnetic wave from an electric cooker. A dielectric raw material A having carbons dispersed in a silicone rubber base material 1, wherein, in any one of dielectric raw materials A, 1) containing 150 to 300 pts.wt. of carbons per 100 pts.wt.Type: GrantFiled: December 13, 2005Date of Patent: May 6, 2014Assignee: Asahi R&D Co., Ltd.Inventors: Kazuhisa Takagi, Yuko Takami, Yuji Koyamashita
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Patent number: 8709307Abstract: This invention concerns a polymer coating material composition (PCM) comprising as components a polymer matrix, carbon nanotubes (CNT) as optical power limiters (OPL), and carbon rich molecules. One aspect of the invention is where the Polymer Matrix is a hyperbranched polymer, such as a hyperbranched polycarbosiloxane polymer. Another aspect of the invention is where the CNT is a short multiwall carbon nanotube (sMWNT). A further aspect of the invention is where the carbon-rich molecules are triethoxysilyl anthracene derivatives. The composition wherein the ratio in weight percent of Polymer Matrix to CNT to carbon-rich molecule is from 94:3:3 to 99.8:0.1:0.1. The composition can further contain one or more of multi-photon absorbers (MPA) chromophores or reverse saturable absorbers (RSA) chromophores. These compositions can be used as: a) a film, b) a coating, c) a liquid, d) a solution, or e) a sandwiched film between two transparent substrates.Type: GrantFiled: March 13, 2009Date of Patent: April 29, 2014Assignee: Oxazogen, Inc.Inventors: Abhijit Sarkar, George Rayfield
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Patent number: 8709305Abstract: This invention concerns a polymer coating material composition (PCM) comprising as components a Polymer Matrix, carbon nanotubes (CNT) as optical power limiters (OPL), and carbon-rich molecules. One aspect of the invention is where the Polymer Matrix is a hyperbranched polymer, such as a hyperbranched polycarbosiloxane polymer. Another aspect of the invention is where the CNT is a short multiwall carbon nanotube (sMWNT). A further aspect of the invention is where the carbon-rich molecules are triethoxysilyl anthracene derivatives. The composition wherein the ratio in weight percent of Polymer Matrix to CNT to carbon-rich molecule is from 94:3:3 to 99.8:0.1:0.1. The composition can further contain one or more of multi-photon absorbers (MPA) chromophores or reverse saturable absorbers (RSA) chromophores. These compositions can be used as: a) a film, b) a coating, c) a liquid, d) a solution, or e) a sandwiched film between two transparent substrates.Type: GrantFiled: July 20, 2011Date of Patent: April 29, 2014Assignee: Oxazogen, Inc.Inventor: Abhijit Sarkar
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Patent number: 8691906Abstract: A process for producing at least one monofilament from a thermoplastic polymer material comprising at least one polyester and also nanoparticles and optionally further additives as components, comprises adding the components to an extruder as partial or complete mixtures or separately and the thermoplastic polymer material being initially strand extruded, cooled and stretched and finally heat-conditioned at a temperature in the range from 40 to 120° C. for 0.01 to 10 min. The invention further relates to using a monofilament obtained by the process in the manufacture of artificial turf, wigs and also as bristles for soft or stiff brushes.Type: GrantFiled: October 13, 2009Date of Patent: April 8, 2014Assignee: BASF SEInventors: Mark Völkel, Rebekka von Benten, Sachin Jain
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Patent number: 8685858Abstract: Hemispheres and spheres are formed and employed for a plurality of applications. Hemispheres are employed to form a substrate having an upper surface and a lower surface. The upper surface includes peaks of pillars which have a base attached to the lower surface. The peaks have a density defined at the upper surface by an array of hemispherical metal structures that act as a mask during an etch to remove substrate material down to the lower surface during formation of the pillars. The pillars are dense and uniform and include a microscale average diameter. The spheres are formed as independent metal spheres or nanoparticles for other applications.Type: GrantFiled: August 30, 2011Date of Patent: April 1, 2014Assignee: International Business Machines CorporationInventors: Augustin J. Hong, Woo-Shik Jung, Jeehwan Kim, Jae-Woong Nah, Devendra K. Sadana
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Publication number: 20140055855Abstract: The present invention is produced by a composite with an Eu (II) compound nanoparticle and a metal nanoparticle. Such production generates quantum size effects of the Eu (II) compound nanoparticle, while the surface plasmon of the metal nanoparticle can be used. Thus, the magnetooptical property can be improved. In addition, a thin film may be produced by a composite with an Eu (II) compound nanoparticle and a metal nanoparticle.Type: ApplicationFiled: March 1, 2012Publication date: February 27, 2014Applicant: National University Corporation Hokkaido UniversityInventors: Yasuchika Hasegawa, Akira Kawashima, Mina Kumagai, Koji Fushimi
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Patent number: 8652430Abstract: The present invention provides an organic dispersion of inorganic platelets, which includes an organic solvent and H-form inorganic platelets dispersed therein. The H-form inorganic platelets have a particle size of between about 20 and 80 mm and the organic dispersion has a sold content of between about 1 and 20 wt %. A method for forming the organic dispersion is also provided.Type: GrantFiled: September 12, 2011Date of Patent: February 18, 2014Assignee: Industrial Technology Research InstituteInventors: Chih-Jen Yang, Chyi-Ming Leu, Chun-Wei Su
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Patent number: 8652944Abstract: Fabricating semiconductor nanowires (5) on a substrate (1) having a metallic oxide layer (2), includes: a) exposing the metallic oxide layer to a hydrogen plasma (11) of power P for a duration t suitable for reducing the layer and for forming metallic nanodrops (3) of radius (Rm) on the surface of the metallic oxide layer; b) low temperature plasma-assisted deposition of a thin layer (4) of a semiconductor material on the metallic oxide layer including the metallic nanodrops, the thin layer having a thickness (Ha) suitable for covering the metallic nanodrops; and c) thermal annealing at a temperature T sufficient to activate lateral growth of nanowires by catalysis of the material deposited as a thin layer from the metallic nanodrops. Nanowires are obtained by this method and nanometric transistors including a semiconductor nanowire.Type: GrantFiled: October 9, 2009Date of Patent: February 18, 2014Assignees: Ecole Polytechnique, Centre National de la Recherche ScientifiqueInventors: Pere Roca I Cabarrocas, Linwei Yu
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Patent number: 8637588Abstract: An optical synthetic resin composed of: a synthetic resin; and fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less, each having a maximum length of 1 nm or more to 30 nm or less, in which part of surfaces of the fine particles are modified with functional groups which themselves repel each other, and a distance between two arbitrary adjacent fine particles among the fine particles is in a range of 0.1 nm or more to 500 nm or less. The two arbitrary adjacent fine particles attract each other with an intermolecular force, thereby making it possible to provide an optical composite deviating from an additivity range.Type: GrantFiled: October 3, 2006Date of Patent: January 28, 2014Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Tanaka, Katsumoto Hosokawa, Kazutaka Takeuchi