Fluidized Bed Utilized Patents (Class 427/213)
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Patent number: 8257657Abstract: A device for discharging, through a central rotating chimney, fluids from a fluidized bed driven in a rotational movement in the same direction by the rotation of the outer circular wall of a reaction chamber and/or by injection of part of these fluids along the circular wall of a fixed or rotating chamber, and methods for catalytic polymerization, drying, or other treatments of solid particles in suspension in a rotating fluidized bed or for cracking or other catalytic conversions of fluids using this device.Type: GrantFiled: April 23, 2007Date of Patent: September 4, 2012Assignee: Total Petrochemicals Research FeluyInventors: Axel de Broqueville, Juray De Wilde
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Patent number: 8252370Abstract: A method for the continuous production of finely ground particulates coated with a barrier, or other desirable film wherein the coated particulates exhibit a diameter of less than 10 microns. In an exemplary embodiment, large coated particulates are introduced into a fluid energy, or jet mill, along with smaller, uncoated particulates. As the particulates collide within the mill they are comminuted, and an amount of coating is transferred from the coated particulates to the uncoated ones such that they become sufficiently coated and size-reduced to a desired size. Alternatively, uncoated particulates are milled and coated during their milling. Still alternatively, uncoated particulates are milled and subsequently directed through an atomized mist of coating material wherein the size of the mist droplets are as large, or larger than the directed particulates.Type: GrantFiled: July 14, 2006Date of Patent: August 28, 2012Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ming-Wan Young, Costas George Gogos, Jun Yang, Rajesh Dave, Linje Zhu, Peter Bonnett, William Schepige
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Patent number: 8231938Abstract: A method of producing enzyme granulates, enzyme granulates produced By the method, and the use thereof in formulations is provided, for example, for animal feed, foodstuffs, washing agents, rinsing agents or for pharmaceutical uses. The enzyme granulates have a high relative proportion of active enzyme, particular particle size, good shelf life, particularly small rounding factors and/or low residual moisture proportion, and further specific properties. The production of the enzyme granulates is achieved by linking of the thermal conditions in the injection zone and temperature conditions in the remainder of the apparatus. This is achieved by introduction of heated process gasses for drying exclusively in the injection zone. The secure introduction of articles into the injection zone is achieved by the specific geometric arrangement of the apparatus using gravity. The absolute value for enzyme activity of the enzyme granulates can be controlled by the addition of particles as seed material for the granules.Type: GrantFiled: May 26, 2004Date of Patent: July 31, 2012Assignee: Glatt Ingenieurtechnik GmbHInventors: Karlheinz Rümpler, Michael Jacob, Mike Waskow
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Publication number: 20120183686Abstract: Embodiments of a method for reducing or mitigating metal contamination of polycrystalline silicon are disclosed. In particular the disclosure relates to a method of mitigating metal contamination of granulate polycrystalline silicon, during its manufacture in a fluidized bed reactor unit, resulting from contact with a metal surface of components of the supporting transportation and auxiliary infrastructure by use of a protective coating comprising silicon or a silicon-containing material.Type: ApplicationFiled: January 13, 2012Publication date: July 19, 2012Inventor: Daniel Ohs
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Publication number: 20120164323Abstract: Processes for producing polycrystalline silicon by thermal decomposition of dichlorosilane are disclosed. The processes generally involve thermal decomposition of dichlorosilane in a fluidized bed reactor operated at reaction conditions that result in a high rate of productivity relative to conventional production processes.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Satish Bhusarapu, Puneet Gupta, Yue Huang
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Patent number: 8188193Abstract: A process for thermally surface postcrosslinking water-absorbing polymer particles in a fluidized bed generated by means of a carrier gas, wherein the surface postcrosslinker is supplied to the fluidized bed in gaseous form.Type: GrantFiled: July 3, 2009Date of Patent: May 29, 2012Assignee: BASF SEInventors: Stefan Blei, Marco Krüger, Wilfried Heide, Matthias Weismantel, Uwe Stueven
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Patent number: 8187663Abstract: A process for measuring, monitoring and/or controlling directed product movements of fluidized products in process systems (1) selected from fluidized bed and spouted bed systems during a spraying process for coating and/or granulation, which includes, with the aid of one or more microwave sensor devices (8), injecting microwave radiation without contact into one or more product streams, receiving the microwave radiation reflected by the particles of the particular product stream and, on the basis of the microwave radiation received, forming and transmitting a measurement signal for the characterization of the product stream, the corresponding use of microwave sensor devices (8) and correspondingly equipped apparatus (1).Type: GrantFiled: January 23, 2007Date of Patent: May 29, 2012Assignee: Glatt GmbHInventors: Jochen A. Dressler, Manfred Struschka, Bernhard Luy
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Publication number: 20120128877Abstract: Process for producing polymer mixtures comprising at least one polymer (A) and comprising at least one component (B), comprising the following steps: (a) providing (A) in the form of granules, (b) providing (B) in the form of liquid solution and/or dispersion in a dispersion medium, (c) by means of an atomizer, applying droplets of the solution and/or dispersion provided in step (b) to the granules provided in step (a), (d) drying the granules obtained in step (c), and (e) optionally carrying out one or more shaping steps.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: BASF SEInventors: Sachin Jain, Shankara Narayanan Keelapandal Ramamoorthy
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Publication number: 20120114851Abstract: The disclosure provides various methods and systems for providing hyperpolarized materials as well as the hyperpolarized materials so provided. In addition, methods of providing hyperpolarized materials, such as agents, to end users from a remote location are also provided.Type: ApplicationFiled: December 22, 2011Publication date: May 10, 2012Applicant: Millikelvin Technologies LLCInventors: Neal Kalechofsky, Avrum Belzer
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Patent number: 8173211Abstract: A method of production of carbon nanoparticles comprises the steps of: providing on substrate particles a transition metal compound which is decomposable to yield the transition metal under conditions permitting carbon nanoparticle formation, contacting a gaseous carbon source with the substrate particles, before, during or after said contacting step, decomposing the transition metal compound to yield the transition metal on the substrate particles, forming carbon nanoparticles by decomposition of the carbon source catalysed by the transition metal, and collecting the carbon nanoparticles formed.Type: GrantFiled: July 16, 2003Date of Patent: May 8, 2012Assignee: Cambridge University Technical Services LimitedInventors: Milo Sebastian Peter Shaffer, Alan H. Windle, Brian F. G. Johnson, Junfeng Geng, Douglas Shephard, Charanjeet Singh
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Patent number: 8133531Abstract: Titanium dioxide particles are coated first with an interstitial coating and then with silicon dioxide or alumina. The coatings are suitably applied via an atomic layer deposition process. The interstitial coating preserves the bright white coloration of the particles after they are coated. The particles therefore can be used as pigments and white fillers in polymers, paints, paper and other applications.Type: GrantFiled: March 6, 2009Date of Patent: March 13, 2012Assignee: The Regents of the University of ColoradoInventors: David M. King, Alan W. Weimer
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Patent number: 8133510Abstract: The invention relates to a film-shaped form of administration for topically administering at least one agent and/or nutrient to a living being. Said form of administration comprises at least one agent-containing and/or nutrient-containing layer that is based on crosslinked hydrophilic polymers which are crosslinked with at least one polyacrylic acid derivative.Type: GrantFiled: December 13, 2004Date of Patent: March 13, 2012Assignee: LTS Lohmann Therapie-Systeme AGInventors: Johannes Bartholomaeus, Maria Cristina Vázquez Lantes
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Publication number: 20120009343Abstract: The invention provides a process for depositing a coating onto particles being pneumatically transported in a tube. The process comprising the steps of providing a tube having an inlet opening and an outlet opening; feeding a carrier gas entraining particles into the tube at or near the inlet opening of the tube to create a particle flow through the tube; and injecting a first self-terminating reactant into the tube via at least one injection point downstream from the inlet opening of the tube for reaction with the particles in the particle flow. The process is suitable for atomic layer deposition and molecular layer deposition. An apparatus for carrying out the process is also disclosed.Type: ApplicationFiled: March 4, 2010Publication date: January 12, 2012Applicant: DELFT UNIVERSITY OF TECHNOLOGYInventor: Jan Rudolf Van Ommen
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Patent number: 8088482Abstract: Hollow thermoexpandable particles or microspheres are provided that contain hydrocarbon blowing agents and have a shell polymer that can be softened at the onset of the expansion temperature and solidified at a higher temperature (thermoset) in an expanded state. Preferably, the microspheres have a shell of thermally expandable and thermally crosslinkable polymer and a hollow interior that contains a hydrocarbon liquid that boils at a temperature below the heat activated crosslinking temperature of the polymer shell. The crosslinking of the shell polymer during or after expansion, which is heat activated at an elevated temperature, can solidify the shell polymer and, then, maintain the expanded volume of the microspheres. The thermoexpandable thermoset polymer particles are useful in insulation, packaging, for making foam materials such as polyurethane or polyisocyanurate rigid foams.Type: GrantFiled: May 24, 2002Date of Patent: January 3, 2012Assignee: IP Rights, LLCInventors: Sammie J. (Joey) Glorioso, Jr., James H. Burgess, Jiansheng Tang, Victoria L. Dimonie, Andrew Klein
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Patent number: 8062702Abstract: The present invention relates to coated fullerenes comprising a layer of at least one inorganic material covering at least a portion of at least one surface of a fullerene and methods for making. The present invention further relates to composites comprising the coated fullerenes of the present invention and further comprising polymers, ceramics and/or inorganic oxides. A coated fullerene interconnect device wherein at least two fullerenes are contacting each other to form a spontaneous interconnect is also disclosed as well as methods of making. In addition, dielectric films comprising the coated fullerenes of the present invention and methods of making are further disclosed.Type: GrantFiled: November 20, 2002Date of Patent: November 22, 2011Assignees: William Marsh Rice University, Natcore Technology Inc.Inventors: Andrew R. Barron, Dennis J. Flood, Elizabeth Whitsitt
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Publication number: 20110247149Abstract: Agents for coloring keratin-containing fibers, in particular human hair, that contain encased oxidation dye precursor products. More-uniform coloring, which is independent of which strands are wetted first or last with the coloring product, is thereby ensured. The casing of the oxidation dye precursor products is made up of an encapsulating material made of methacrylic-acid, methacrylic acid-ester, or vinyl-acetate homo- or copolymers, or shellac, as well as at least one release agent. Contact time is equalized over time and shortened overall, resulting in a reduction in hair damage due to excessively long contact times. A method for manufacturing coloring agents for keratinic fibers, containing coated particles is also provided.Type: ApplicationFiled: June 20, 2011Publication date: October 13, 2011Inventors: Carolin Welz, Hartmut Manneck, Astrid Kleen, Mustafa Akram
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Patent number: 8034264Abstract: The invention relates to compositions based on ZrO2, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations.Type: GrantFiled: May 18, 2007Date of Patent: October 11, 2011Assignee: Ivoclar Vivadent AGInventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Frank Rothbrust, Harald Kerschbaumer, Volker M. Rheinberger
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Patent number: 8025972Abstract: Sodium percarbonate particles presenting an improved long term stability expressed as a heat output at 40° C. measured after storage during 12 weeks at 40° C., of less than 5 ?W/g, or expressed as an Avox recovery of at least 70 after storage for 8 weeks at 55° C. Process for the production of these particles. Use of these particles as bleaching agent in detergent compositions and detergent compositions containing them.Type: GrantFiled: June 28, 2005Date of Patent: September 27, 2011Assignee: SOLVAY (Société AnonymeInventors: Alfred Söntgerath, Gerd Hecken, Jüergen H. Rabe, Henk L. J. Venbrux
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Publication number: 20110223413Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises coating the water-absorbing polymer particles with at least one sulfinic acid, sulfonic acid and/or salts thereof.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: BASF SEInventors: Norbert Herfert, Thomas Daniel, Rainer Dobrawa
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Patent number: 8006406Abstract: A method and apparatus for drying and reducing the particle size of malleable material. Preferred embodiments of the invention include a drying apparatus for use with a malleable material, comprising a blower, an airlock feeder, a main line which contains an accelerator, a conditioning chamber, and a dehydration chamber, a polishing line which contains an accelerator, a conditioning chamber, and a dehydration chamber, and a squid line blower for providing pressurized heated air to the apparatus. An alternative preferred embodiment of the invention comprises a method of drying and size reducing malleable material.Type: GrantFiled: August 1, 2007Date of Patent: August 30, 2011Inventor: H. Clay Dingee, IV
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Publication number: 20110200824Abstract: The invention relates to a method for producing glitter comprising particles having a thickness of ?1 ?m from a predetermined starting material, which particles are introduced into a mixed bed which is produced by means of a fluidised bed, the mixed bed being adjusted by means of a primary flow and a secondary flow, and the individual particles in the mixed bed being sealed at all sides with a layer of protective material so as to enclose cut and broken edges.Type: ApplicationFiled: February 15, 2011Publication date: August 18, 2011Applicant: Sigmund Lindner GmbHInventors: Manuela Pilz, Gudrun Schubert
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Publication number: 20110200823Abstract: A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius provides roofing granules with improved luster.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Inventors: Ming Liang Shiao, Van Nhan Nguyen, Emmanuel Garre
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Publication number: 20110189247Abstract: The present invention relates to hair care compositions, especially those hair care compositions in the form of a hair care article that is a porous dissolvable solid substrate. The porous dissolvable solid substrate has a surface resident coating comprising the cationic surfactant conditioner active that can provide a conditioning benefit.Type: ApplicationFiled: December 8, 2010Publication date: August 4, 2011Inventors: Robert Wayne GLENN, JR., Kathleen Mary Kaufman
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Publication number: 20110177341Abstract: The resistance of hollow microspheres towards shear and pressure may be enhanced by forming a non-tacky, solid, non-particulate outer coating comprised of a non-thermoset film-forming material on the outer surfaces of such microspheres.Type: ApplicationFiled: March 30, 2011Publication date: July 21, 2011Applicant: Henkel CorporationInventors: Richard F. Clark, David R. Meloon, Jessica Killion
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Patent number: 7981468Abstract: An apparatus (10) for surface treating particulate material (M) with surface treatment particles (S) includes a substantially cylindrical body (12) having a top (18), bottom (16) and sidewall (14). A mixing chamber (42) is defined within the body (12). At least one injector inlet (36) and at least one process air inlet (32) are in communication with the mixing chamber (42). At least one outlet (34) is in fluid communication with the mixing chamber (42).Type: GrantFiled: November 16, 2009Date of Patent: July 19, 2011Assignee: Eastman Kodak CompanyInventors: Stewart W. Blair, Tomas G. P. McHugh, Greg Munro
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Publication number: 20110159180Abstract: This invention relates to a method and device for processing of granules of solidified salts, by forming at least one injection zone in a fluidised bed where a feed stream of seed particles is contacted/coated by the liquid product by simultaneous injection of a feed stream of the seed particles and a feed stream of the liquid product to be sprayed, forming at least one granulation zone in the fluidised bed where contacted/coated seed particles may be dried and/or shaped and/or cooled to form granules, extracting granules from the at least one granulation zone(s) and sorting the extracted granules into three fractions; undersize granules with too small diameters compared to the desired size range, on-size granules with diameters within the desired size range, and oversize granules with too large diameters compared to the desired size range, passing the fraction of on-size granules to post-processing treatment for forming the product granules, removing the oversize, typically by reducing the size of at least aType: ApplicationFiled: April 28, 2009Publication date: June 30, 2011Inventors: Francois Ledoux, Luc Vanmarcke, Howard Volke, Peter de Bakker, Remco de Fouw, Roeland Elderson
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Patent number: 7966745Abstract: Fluid bed granulation process comprising the step of cooling the granules in a cooling fluid bed (F2). At least part of the fluidizing air coming out from said cooling fluid bed (F2) is fed into the granulation fluid bed (F1).Type: GrantFiled: May 19, 2004Date of Patent: June 28, 2011Assignee: Urea Casale S.A.Inventor: Gianfranco Bedetti
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Publication number: 20110135953Abstract: A metallic powder is disclosed. The metallic powder includes a plurality of metallic powder particles. Each powder particle includes a particle core. The particle core includes a core material comprising Mg, Al, Zn or Mn, or a combination thereof, having a melting temperature (TP). Each powder particle also includes a metallic coating layer disposed on the particle core. The metallic coating layer includes a metallic coating material having a melting temperature (TC). The powder particles are configured for solid-state sintering to one another at a predetermined sintering temperature (TS), and TS is less than TP and TC.Type: ApplicationFiled: December 8, 2009Publication date: June 9, 2011Inventors: Zhiyue Xu, Gaurav Agrawal, Bobby Salinas
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Patent number: 7955582Abstract: A method for producing crystallized silicon according to the EFG process by using a shaping part, between which part and a silicon melt, crystallized silicon grows in a growth zone. Inert gas and at least water vapor are fed into the silicon melt and/or growth zone, by means of which the oxygen content of the crystallized silicon is increased. From 50 to 250 ppm of vapor water is added to the inert gas, and the inert gas has an oxygen, CO and/or CO2 content of less than 20 ppm total.Type: GrantFiled: December 14, 2007Date of Patent: June 7, 2011Assignee: Schott Solar GmbHInventors: Albrecht Seidl, Ingo Schwirtlich
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Patent number: 7947326Abstract: There is disclosed an apparatus for forming a fluidized bed of circulating particles. In an embodiment, the apparatus includes a bottom portion having a sidewall, the sidewall defining a curvilinear profile, and the bottom portion configured to contain a bed of particles; and a gas inlet configured to produce a column of gas to carry entrained particles therein. There is disclosed a method of forming a fluidized bed of circulating particles. In an embodiment, the method includes positioning particles within a bottom portion having a sidewall, the sidewall defining a curvilinear profile; producing a column of gas directed upwardly through a gas inlet; carrying entrained particles in the column of gas to produce a fountain of particles over the fluidized bed of circulating particles and subside in the particle bed until being directed inwardly into the column of gas within the curvilinear profile.Type: GrantFiled: September 28, 2006Date of Patent: May 24, 2011Assignee: Battelle Energy Alliance, LLCInventor: Douglas W. Marshall
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Patent number: 7935327Abstract: A fluidized bed reactor and a Siemens reactor are used to produce polycrystalline silicon. The process includes feeding the vent gas from the Siemens reactor as a feed gas to the fluidized bed reactor.Type: GrantFiled: August 30, 2006Date of Patent: May 3, 2011Assignee: Hemlock Semiconductor CorporationInventors: Arvid Neil Arvidson, Michael Molnar
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Patent number: 7927565Abstract: A nozzle reactor system for increasing the conversion rate of material feed injected into the nozzle reactor system. The system includes two or more nozzle reactors aligned in series, such that material exiting a first nozzle reactor may be injected into a second nozzle reactor. Each nozzle reactor includes an interior reactor chamber and an injection passage and a material feed passage that are each in material injecting communication with the interior reactor chamber. Furthermore, the injection passage is aligned transversely to the injection passage. The injection passage is configured to accelerate cracking material passed therethrough to a supersonic speed. A method of increasing the conversion rate of material feed utilizing multiple cracking steps is also described.Type: GrantFiled: May 15, 2009Date of Patent: April 19, 2011Assignee: Marathon Oil Canada CorporationInventors: Willem P. C. Duyvesteyn, Jose Armando Salazar
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Patent number: 7927984Abstract: Silicon deposits are suppressed at the wall of a fluidized bed reactor by a process in which an etching gas is fed near the wall of the reactor. The etching gas includes tetrachlorosilane. A Siemens reactor may be integrated into the process such that the vent gas from the Siemens reactor is used to form a feed gas and/or etching gas fed to the fluidized bed reactor.Type: GrantFiled: November 5, 2008Date of Patent: April 19, 2011Assignee: Hemlock Semiconductor CorporationInventor: Michael John Molnar
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Publication number: 20110072871Abstract: The invention relates to a water-soluble alkyd-sulfur composite coated controlled-release fertilizer and method of preparing the same. The coated controlled-release fertilizer comprising a fertilizer core and a coating applied thereon, wherein said coating comprises a sulfur film and a polymer film comprising a coating agent of water-soluble alkyd outside the sulfur film, and optionally an inorganic layer comprising inorganic powder outside the polymer film.Type: ApplicationFiled: May 30, 2008Publication date: March 31, 2011Applicant: SHANDONG KINGENTA ECOLOGICAL ENGINEERING CO., LTD.Inventors: Hongkun Chen, Lianbu Wan, Lingchao Fan, Hengjun Xu, Huaisheng Cao
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Publication number: 20110065163Abstract: The invention provides small enzyme-containing granules having an inorganic salt core and an enzyme-containing layer coated over the core, and methods for producing such granules. The majority of the enzyme granules are less than 300 ?m in diameter. The granules are suitable for incorporation into compositions such as cleaning, textile processing, and animal feed compositions.Type: ApplicationFiled: February 11, 2009Publication date: March 17, 2011Inventors: Nathaniel T. Becker, Robert Christensen I., Mark S. Gerbert, Antti Pekka Vaha-Vahe
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Publication number: 20110054080Abstract: The method describes a novel production method for coated particles made of rubber granules, the coating, the particles thus coated, and the use of the coated particles.Type: ApplicationFiled: February 2, 2009Publication date: March 3, 2011Applicant: EVONIK DEGUSSA GMBHInventors: Andreas Berlineanu, Kirsten Luce, Margit Bukohl, Nicole Dudek, Siegfried Jittenmeier, Marisa Cruz, Rainer Fuchs, Frank Dieter Kuhn
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Publication number: 20110033608Abstract: A process for coating water-swellable hydrogel microspheres with various coating materials is described. The coating process described herein is a fluidized bed process, which utilizes inert, cofluidization particles to aid the fluidization of the microspheres. The use of the cofluidization particles increases the efficiency of the coating process and improves the quality of the coating obtained.Type: ApplicationFiled: March 6, 2009Publication date: February 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Garret D. Figuly, Henricus Jacobus Cornelis Gommeren, Guangliang Liu
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Publication number: 20110012057Abstract: Superabsorbent material, comprising first superabsorbent polymers, coated with second clay-crosslinked superabsorbent polymers, said second clay-crosslinked superabsorbent polymers being obtainable by the step of polymerization of a solution/dispersion of polymerizable compounds and clay particles, to obtain said second superabsorbent polymers, crosslinked by said clay particles, of a weight average largest particle dimension of less than 800 nm.Type: ApplicationFiled: July 19, 2010Publication date: January 20, 2011Applicant: The Procter & Gamble CompanyInventors: Torsten LINDNER, Axel MEYER, Mattias SCHMIDT
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Publication number: 20100317557Abstract: Non-oxidiser particles containing sodium percarbonate and at least one additive, the amount of constituents other than sodium percarbonate in the particles being such that the particles are classified as non-oxidiser according to the standard test method O.1 of the UN Manual of Tests and Criteria, sub-section 34.4.1 and that the particles have an available oxygen content of below 12% by weight, wherein the sodium percarbonate is coated and/or co-granulated with the additive(s). Blends comprising such particles. Process for the production of these particles and blends. Use of these particles or blends in detergent compositions and detergent compositions containing them.Type: ApplicationFiled: December 21, 2007Publication date: December 16, 2010Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Jurgen H. Rabe, Henk L. J. Venbrux, Joerg Clemens, Gerd Hecken, Bernd Hoffman
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Patent number: 7833437Abstract: The present invention is an electroluminescent phosphor wherein each individual phosphor particle is encapsulated in an inorganic coating applied by an atomic layer deposition (ALD) coating method. In a preferred embodiment, the coating is aluminum oxyhydroxide. The encapsulated phosphor shows an extreme insensitivity to atmospheric moisture and suffers only minor loss of initial brightness in lamps.Type: GrantFiled: January 12, 2007Date of Patent: November 16, 2010Assignee: Global Tungsten & Powders Corp.Inventors: Chen-Wen Fan, Tuan A. Dang, Joan M. Coveleskie, Frank A. Schwab, Dale E. Benjamin, David C. Sheppeck
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Publication number: 20100285214Abstract: A fluid bed granulation process and apparatus, wherein a suitable fluid bed of a particulate material is maintained in a granulator (1) fed by an input flow (F) comprising a growth liquid (L) and by a flow (S1) of seeds adapted to promote the granulation, and wherein a part (F2) of said input flow (F) is taken upstream the feeding of the fluid bed, and used in a seeds generator (33), to produce the seeds for the fluid bed.Type: ApplicationFiled: December 19, 2008Publication date: November 11, 2010Applicant: Urea Casale S.A.Inventor: Federico Zardi
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Patent number: 7820126Abstract: Methods and apparatus for the commercial-scale production of purified polycrystalline silicon granules with one or more tailored levels of n- and p-type impurities from an impure silicon source such as, for example, metallurgical-grade silicon.Type: GrantFiled: August 17, 2007Date of Patent: October 26, 2010Assignee: Iosil Energy CorporationInventor: John Allan Fallavollita
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Patent number: 7820241Abstract: A device (51) for applying layers or a powder material (71) by means of an application device (52) is described, wherein the application device (52) can be moved back and forth between two end positions in order to apply a layer of material (71) and the application device (52) comprises a blade (56) for removing excess material during the application of a layer of material (71). The device (51) is characterized by a material transport device (53), by which the material can be transferred from one side of the blade (56) to the other side of the blade. The device has the particular advantage that layers of material (71) can be applied without any loss of material and is particularly applicable in a laser sintering device.Type: GrantFiled: March 21, 2006Date of Patent: October 26, 2010Assignee: EOS GmbH Electro Optical SystemsInventors: Hans Perret, Thomas Halder, Jochen Philippi, Peter Keller, Gerd Cantzler, Michael Göth
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Publication number: 20100266763Abstract: In a process for producing coated sodium percarbonate particles by spray application of a sodium sulfate-containing aqueous solution onto sodium percarbonate particles in a fluidized bed and simultaneous evaporation of water, sodium sulfate and sodium percarbonate-containing dust is used to prepare the sodium sulfate-containing aqueous solution.Type: ApplicationFiled: November 20, 2008Publication date: October 21, 2010Applicant: EVONIK DEGUSSA GMBHInventors: Stefan Leininger, Michael Scheibe, Harald Jakob
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Publication number: 20100248998Abstract: The invention provides a process for the production of a granule of a coated oxidizing compound which granule has good delayed release properties, said process comprising a) providing cores of an oxidizing compound produced by fluidized bed spray granulation, b) spraying on the oxidizing compound cores an aqueous solution of metal sili-cate in a fluidized bed, said aqueous solution comprising at least 15% by weight metal silicate, and c) drying to form a metal silicate coating layer on the oxidizing compound core, provided that the amount of metal silicate coating layer is at least 8%, preferably at least 10% by weight based on the total weight of the granule. The invention also provides such granule and well treatment fluids including such granule, and processes for use.Type: ApplicationFiled: October 15, 2008Publication date: September 30, 2010Inventors: Mona Ezzelarab, Carl Aften, Carolina Andersson, Cecilia Johansson, Richard Lalama, Geoffrey Monteith, Lars-Inge Olsson, Ajse Sandqvist, Frank Schinkel, Markus Svensson, Walter Watson, Caroline Wegner
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Publication number: 20100247760Abstract: The invention relates to a method of generating a ‘multicomponent particle comprising: and a multicomponent particle generating system comprising: a first nozzle constructed to generate at least one isolated particle; a second nozzle arranged to generate a generally uninterrupted fluid jet without breaking up, —said first and second nozzles arranged to have said isolated particle collide with the fluid jet so as to combine said particle with fluid of the second fluid jet, for providing a multicomponent particle; and a collector by which said isolated particles can be captured after collision with the fluid jet.Type: ApplicationFiled: June 7, 2008Publication date: September 30, 2010Inventors: Rene Jos Houben, Andries Rijfers, Leonardus Antonius Maria Brouwers, Jacobus Eversdijk, Kjeld Jacobus Cornelis van Bommel
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Publication number: 20100247737Abstract: It has been desired to provide a method for producing a granulated preparation capable of maintaining a stability of a chemically unstable substance in a neutral or acidic region for a long period of time with a simple and safe method in a preparation procedure, and a tablet produced by using the method. The invention provides a granulation method in which an unstable substance is successively subjected to aqueous stabilization treatment and granulation procedure. Further, it became possible to provide a tablet which is absorbed in the intestine without losing the potency in a gastric region by forming an intermediate layer on a surface of the thus obtained granule and subsequently subjecting the granule to enteric coating.Type: ApplicationFiled: November 25, 2008Publication date: September 30, 2010Inventors: Hiroshi Sakamoto, Toshiya Taniguchi
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Publication number: 20100227788Abstract: The present application relates to granulates of sensitive washing- or cleaning-agent ingredients. These granulates are suitable in particular for use in liquid or gelled, in particular water-containing washing or cleaning agents. The present invention further relates to methods for manufacturing such granulates, to washing and cleaning agents that contain such granulates, and to the use of suitable components for the manufacture of such granulates.Type: ApplicationFiled: May 18, 2010Publication date: September 9, 2010Inventors: Peter Schmiedel, Wolfgang Von Rybinski, Petra Padurschel, Elke Scholl, Stephan Gomolka, Cornelius Bessler, Sören Hölsken, Bernhard Guckenbiehl
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Patent number: 7781018Abstract: This invention discloses a method of making an oxygen scavenging particle comprised of an activating component and an oxidizable component wherein one component is deposited upon the other component from a vapor phase and is particularly useful when the activating component is a protic solvent hydrolysable halogen compound and the oxygen scavenging particle is a reduced metal.Type: GrantFiled: November 23, 2009Date of Patent: August 24, 2010Assignee: M&G USA CorporationInventor: Kevin L. Rollick
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Publication number: 20100197879Abstract: A device for discharging, through a central rotating chimney, fluids from a fluidized bed driven in a rotational movement in the same direction by the rotation of the outer circular wall of a reaction chamber and/or by injection of part of these fluids along the circular wall of a fixed or rotating chamber, and methods for catalytic polymerization, drying, or other treatments of solid particles in suspension in a rotating fluidized bed or for cracking or other catalytic conversions of fluids using this device.Type: ApplicationFiled: April 23, 2007Publication date: August 5, 2010Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Axel De Broqueville, Juray De Wilde