Abstract: The present invention relates to process for the production of plane-parallel platelets, comprising the steps of: a) vapor-deposition of a separating agent onto a carrier to produce a separating agent 5 layer, b) vapor-deposition of at least one product layer onto the separating agent layer, and c) dissolution of the separating agent layer in a solvent and production of a suspension in which the at least one product layer is present in the form of plane-parallel platelets, wherein the separating agent is selected from the group consisting of anthracene, anthraquinone, acetamidophenol, acetylsalicylic acid, camphoric anhydride, benzimidazole, benzene-1,2,4-tricarboxylic acid, biphenyl-2,2-dicarboxylic acid, bis(4-hydroxyphenyl)sulfone, dihydroxyanthraquinone, hydantoin, 3-hydroxybenzoic acid, 8-hydroxyquinoline-5-sulfonic acid monohydrate, 4-hydroxycoumarin, 7-hydroxycoumarin, 3-hydroxynaphthalene-2-carboxylic acid, isophthalic acid, 4,4-methylene-bis-3-hydroxynaphthalene-2-carboxylic acid, naphthalene-1,8-dic
Abstract: An electroactive material comprises multiple layers of electroactive composite with each layer having unique dielectric, electrical and mechanical properties that define an electromechanical operation thereof when affected by an external stimulus. For example, each layer can be (i) a 2-phase composite made from a polymer with polarizable moieties and an effective amount of carbon nanotubes incorporated in the polymer for a predetermined electomechanical operation, or (ii) a 3-phase composite having the elements of the 2-phase composite and further including a third component of micro-sized to nano-sized particles of an electroactive ceramic incorporated in the polymer matrix.
Type:
Grant
Filed:
March 18, 2009
Date of Patent:
May 3, 2011
Assignee:
United States of America as represented by the Administrator of the National Aeronautics and Space Administration
Inventors:
Zoubeida Ounaies, Cheol Park, Joycelyn S. Harrison, Nancy M. Holloway, Gregory K. Draughon
Abstract: The present invention provides a porous zirconium powder having improved heat resistance of total pore volume, and a simple production method thereof. More specifically, the present invention provides: (1) a porous zirconium powder in which total pore volume following heat treatment for three hours at 1000° C. is at least 0.75 ml/g, and total volume of pores having a diameter of 10 to 100 nm following heat treatment for three hours at 1000° C. is at least 30% of the total pore volume, and (2) a production method of a porous zirconia powder comprising: forming a basic zirconium sulfate by adding a sulfating agent to a zirconium salt solution; forming zirconium hydroxide by neutralizing the basic zirconium sulfate; and heat-treating the zirconium hydroxide, wherein, when adding the sulfating agent to the zirconium salt solution, the sulfating agent is added to the zirconium salt solution having a temperature of 100° C. or higher in an autoclave.
Abstract: A metal nanoparticle which is prepared by forming a self-assembled monolayer including a terminal reactive group on the surface thereof, and introducing a functional group capable of being removed by the action of an acid or an base into the terminal reactive group wherein the self-assembled monolayer is built up of a thiol, an isocyanide, an amine, a carboxylate or a phosphate compound having the terminal reactive group, or built up of a thiol, an isocyanide, an amine, a carboxylate or a phosphate compound having no terminal reactive group followed by introducing the terminal reactive group thereto; and a method for forming a conductive pattern using the same are provided.
Type:
Grant
Filed:
January 17, 2007
Date of Patent:
April 12, 2011
Assignee:
Samsung Electronics Co., Ltd.
Inventors:
Jong Jin Park, Dong Woo Shin, Sung Woong Kim
Abstract: A responsive coated substrate, said substrate comprising an interfacial surface to which a responsive coating attaches, said responsive coating comprising (a) at least one silicone-based, substantially hydrophobic polymer and (b) at least one substantially hydrophilic polymer wherein said responsive coating substrate is in a first state; and methods of coating the same.
Type:
Grant
Filed:
February 14, 2007
Date of Patent:
April 12, 2011
Assignee:
The Procter & Gamble Company
Inventors:
Vladimir Gartstein, David S. Salloum, Faiz Feisal Sherman, Robert Mikhailovych Lupitskyy, Sergiy Minko, Mikhail Motornov, Roman Bogdanovych Sheparovych
Abstract: Novel material for chromatographic separations, processes for its preparation, and separations devices containing the chromatographic material. In particular, the disclosure describes porous inorganic/organic hybrid particles having a chromatographically-enhancing pore geometry, which desirably may be surface modified, and that offer more efficient chromatographic separations than that known in the art.
Type:
Grant
Filed:
January 15, 2009
Date of Patent:
April 5, 2011
Assignee:
Waters Technologies Corporation
Inventors:
Zhiping Jiang, Raymond P. Fisk, John E. O'Gara, Thomas H. Walter, Kevin D. Wyndham
Abstract: A novel composite structural component including novel boron nitride agglomerated powders and a matrix is provided having controlled density and fracture strength features. In addition methods for producing the novel boron nitride agglomerated powders are provided. One method calls for providing a feedstock powder including boron nitride agglomerates, and heat treating the feedstock powder to form a heat treated boron nitride agglomerated powder. In one embodiment the feedstock powder has a controlled crystal size. In another, the feedstock powder is derived from a bulk source.
Abstract: Disclosed are particles containing substrates and an anion-binding layer, containing one or more anion-forming organic active compounds or active compound/colorant mixtures; processes for preparing said particles and to methods of use thereof in cosmetics, pharmaceuticals, formulations, paints, coatings, plastics, films, in security printing, in security features in documents or identity papers, for coloring seed, for coloring foods or in medicament coatings and for the preparation of pigment compositions and dry preparations.
Type:
Grant
Filed:
May 24, 2007
Date of Patent:
March 29, 2011
Assignee:
Merck Patent GmbH
Inventors:
Carsten Handrosch, Thomas Rudolph, Herwig Buchholz, Soheila Anzali
Abstract: A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.
Type:
Grant
Filed:
October 8, 2009
Date of Patent:
March 29, 2011
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Machteld M. Mertens, An Verberckmoes, Marcel J. Janssen, Yun Feng Chang, Luc R. M. Martens, Stephen Neil Vaughn, Kenneth Ray Clem, Wilfried J. Mortier
Abstract: Provided are bifunctional magnetic core-semiconductor shell nanoparticles and a manufacturing method thereof. The method includes mixing magnetic core material precursors and a reducing agent for the core material precursors; preparing a first mixture solution; heating and cooling the first mixture solution and preparing magnetic core materials; mixing the magnetic core materials with semiconductor shell material precursors and a reducing agent for the semiconductor shell material precursors; preparing a second mixture solution; and heating and cooling the second mixture solution and coating the magnetic core materials with the semiconductor shell materials.
Type:
Grant
Filed:
September 24, 2007
Date of Patent:
March 22, 2011
Assignee:
Korea University Foundation
Inventors:
Young Keun Kim, Hong Ling Liu, Jun Hua Wu, Ji Hyun Min, Ju Hun Lee
Abstract: Epoxy laminates, e.g. CEM-1 laminates, include polymeric particles, particularly core-shell particles having an average diameter of about 0.05 to 30 ?m, which reduce the dust produced during manufacture of printed circuit boards.
Abstract: Hollow glass microspheres are made using selenium oxide as the blowing agent. The use of selenium oxide provides two unique advantages: lower density and smaller hollow microspheres are obtained because loss of selenium oxide gas out of the liquid glass bubble during formation is slow, and the hollow microspheres will contain a vacuum due to the condensation of selenium oxide gas blowing agent upon cooling of the spheres below 315 deg. C.
Abstract: Porous silica-based particles with relatively larger average diameter of 1 micron or more and a low particle density are prepared. The method includes the steps of (a) preparing two-layer separated liquid including an organic silicon compound layer and a water layer, then adding an organic solvent, an alkali, and a surfactant into the water layer while agitating at least the water layer so that the organic silicon compound layer and the water layer are not completely mixed with each other, further hydrolyzing and/or partial hydrolyzing the organic silicon compound in the mixed aqueous solution to prepare silica-based particle precursors, (b) adding sodium aluminate into the mixed aqueous solution containing the silica-based particle precursors and then preparing silica-based particles having pores, cavities or voids inside the particles, and (c) washing and drying the silica-based particles. The particles are useful for various applications such as microcapsules, adsorbents, catalysts, and so on.
Abstract: The present invention relates to magnetic beads suitable for, for example, isolation of proteins, cells, and viruses and also for diagnostic applications and cell cultivation. The magnetic beads are composite beads with an inner core of metal particles, which are coated with an inert synthetic polymer and these are then enclosed in a hydrophilic porous polymer, preferably agarose. This provides porous biocompatible beads without metal leakage. The beads may be used for cell cultivation or for chromatography. When the beads are used for chromatography the agarose layer is preferably provided with ligands having affinity for selected biomolecules.
Type:
Grant
Filed:
April 13, 2006
Date of Patent:
March 1, 2011
Assignee:
GE Healthcare Bio-Sciences AB
Inventors:
Mathias Alterman, Andreas Axen, Gunnar Glad, Dag Lindstrom, Ulrika Meyer, Nils Norrman, Tobias Soderman
Abstract: Description of a method for the production of a pigmented thermoplastic material. The method characterizes that during a first step an aqueous suspension presenting a solid matter contents of approximately 10 to 75% by weight, containing at least one flow enhancer in form of dissolved salt and the pigment, is ground under alkaline conditions in a high energy charging mill by means of grinding bodies having a diameter of 0.2 to 2 mm, and the obtained grinding product is transformed during a second step with a thermoplastic material into the pigmented thermoplastic material by means of a flush process performed by a kneader or extruder, at increased temperature and a pH value of initially 7 or less. In addition, the invention concerns a pigmented thermoplastic material produced according to said method, as well as beneficial applications for production of transparent molded bodies, in particular of fibers, foils, injection moldings and extruded parts.
Abstract: A stabilized, chemically reactive, metallic nano-material effective for degradation of chlorinated organic compounds in soils, sediments and groundwater. The nano-material is composed of a magnetic metal nanoparticle and a carbohydrate stabilizer bound to the nanoparticle. The preferred metal nanoparticle is iron and the preferred carbohydrate stabilizer is either a starch or a water soluble cellulose such as sodium carboxymethyl cellulose. The nanoparticle may be either mono-metallic, bi-metallic or multi-metallic in nature, but is preferably bi-metallic wherein it is coated with a secondary catalytic metal coating, preferably palladium. A method of making the metallic nano-material is further disclosed wherein a solution of the metal nanoparticle and carbohydrate stabilizer is prepared, and the nanoparticle is then reduced under inert conditions.
Abstract: Ethylene polymer particles having an intrinsic viscosity [?] of 5 dl/g to 30 dl/g, a degree of crystallinity of as high as 80% or more, and a specific shape on the surface of the particles. The ethylene polymer particles can be obtained by carrying out polymerization of olefins including ethylene using an olefin polymerization catalyst containing a solid titanium catalyst component including magnesium, halogen and titanium under specific conditions. The ethylene polymer particles obtained by a solid phase method, such as solid phase drawing molding, are capable of providing a molded article with high strength.
Abstract: Described herein are nanoreactors having various shapes that can be produced by a simple chemical process. The nanoreactors described herein may have a shell as thin as 0.5 nm and outside diameters that can be controlled by the process of making and have a nanoparticle enclosed therein. The nanoreactors have catalytic activity and may be used to catalyze a variety of chemical reactions.
Type:
Grant
Filed:
March 22, 2005
Date of Patent:
January 25, 2011
Assignee:
The Regents of the University of California
Inventors:
A. Paul Alivisatos, Yadong Yin, Robert M. Rioux, Gabor A. Somorjai
Abstract: A stabilized inorganic nanoparticle which is stabilized by bonding protective ligands to a surface of an inorganic nanoparticle, wherein one part of binding sites on the surface of the inorganic nanoparticle are bonded to the protective ligand, the other part of the binding sites remain as a free site not bonded to the protective ligand, and satisfies the condition that the amount of the protective ligand bonded to the inorganic nanoparticle is a critical amount or the condition that the form of modifying the surface of the inorganic nanoparticle by the protective ligand is a critical modification form. According to the present invention, there is provided a stabilized inorganic nanoparticle that is stabilized by a protective ligand and can be rapidly functionalized with ease by bonding a functional ligand thereto.
Abstract: The present invention involves reduced specific gravity particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides particulates comprising silica and an aluminum oxide and at least one void and having a specific gravity of less than about 2.2, a particle size of 8 U.S. Mesh or smaller, and a substantially spherical shape. Other embodiments of the present invention provide for using such particulates in subterranean operations such as fracturing and gravel packing.