Organic Coating Patents (Class 427/220)
  • Patent number: 7291393
    Abstract: An objective of the invention is to provide a coated conductive particle having superior connection reliability, a method for manufacturing such coated conductive particle, an anisotropic conductive material and a conductive-connection structure. A coated conductive particle comprising a particle having a surface made of conductive metal and an insulating particles to coat the surface of the particle having the surface made of conductive metal there with, wherein the insulating particles are chemically bonded to the particle having the surface made of conductive metal via a functional group (A) having a bonding property to the conductive metal so that a single coating layer is formed.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: November 6, 2007
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Takeshi Wakiya, Yoshikazu Yoneda, Masako Ueba
  • Patent number: 7282237
    Abstract: A method for hydrophilization and/or surface area enlargement of a porous base matrix comprising on its inner and/or outer surfaces a polymer (P?) carrying nucleophilic groups X?. The method is characterized in (a) ethoxylating a plurality of said X? thereby transforming them to groups comprising —(CH2CH2O)nH, or (b) (i) ethoxylating a polymer (P?) carrying nucleophilic groups X? thereby transforming P? to a polyhydroxy polymer (P??) carrying a plurality of —(CH2CH2O)nH groups, whereafter (ii) P?? is attached to the base matrix. n is an integer ?1. A support matrix which is obtainable by the method. The support matrix has a sufficient rigidity and swellability to permit liquid flow of a velocity >5 cm/h through the matrix when in form of particles packed to a bed or in form of a porous monolithic plug.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: October 16, 2007
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Helene Derand, Rose Nasman, legal representative, Harry Nasman, legal representative, Jan Nasman, deceased
  • Patent number: 7282236
    Abstract: Methods of making hydrophobic, pyrogenically produced silica having a tamped density, of 55 to 200 g/l. Said silica is produced by hydrophobizing pyrogenically produced silica by reaction with a halogen free silane and then compacting it with means consisting of a roller compactor or a belt filter press. The silica may be used for the production of dispersions.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: October 16, 2007
    Assignee: Degussa GmbH
    Inventors: Günther Michael, Volker Kasack, Rüdiger Nowak
  • Patent number: 7261939
    Abstract: A tablet comprising a core which is at least partially coated with an outer layer obtained by electrostatic deposition of a powder and subsequent fusing of the deposited powder to form a film characterised in that a surface of the tablet coated with said outer layer is contoured to provide higher regions and lower regions, the outer layer having a different colour in said lower regions to the outer layer in said higher regions.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: August 28, 2007
    Assignee: Phoqus Limited
    Inventors: Martin D. Hallett, Linda A. Reeves, Marshall Whiteman
  • Patent number: 7250080
    Abstract: An improved process for making an organosilicon compound surface-treated titanium dioxide material, comprising (a) forming a mixture of the titanium dioxide material in water, (b) wet milling the mixture, (c) adjusting the pH of the slurry resulting from step (b) to between about 5.0 and about 8.5, (d) after step (c), removing the titanium dioxide material from the mixture by vacuum or pressure filtration, (e) after step (d), washing the titanium dioxide material so removed, (f) after step (e), converting the washed titanium dioxide material to a fluid dispersion having a pH of from about 3.5 to less than about 7 via addition of a fluidizing agent comprising a water-soluble monoprotic acid, (g) after, or concurrently with, step (f), adding to the resulting dispersion of titanium dioxide material an organosilicon compound, with mixing, and (h) spray drying the dispersion of the washed titanium dioxide material resulting from step (g) to yield a dry titanium dioxide pigment powder.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: July 31, 2007
    Assignee: Tronox LLC
    Inventors: Daniel H. Craig, Mark D. Westmeyer
  • Patent number: 7247259
    Abstract: A process for making an aerogel-electrolyte-metal composite includes contacting an aerogel with an electrolyte to form an aerogel-electrolyte composite; contacting the aerogel-electrolyte composite with a metal precursor to form an aerogel-electrolyte-precursor composite; and converting the metal precursor of the aerogel-electrolyte-precursor composite to metal crystals to form the aerogel-electrolyte-metal composite. In addition, an aerogel-electrolyte-metal composite is formed by the process, wherein the average longest dimension of the metal crystals is about 1 to about 3 nanometers, and wherein the metal crystals are about 30% to about 100% dispersed.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: July 24, 2007
    Assignees: Aerogel Composite, LLC, University of Connecticut
    Inventors: Can Erkey, Hiroaki S. Hara
  • Patent number: 7244498
    Abstract: Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: July 17, 2007
    Assignee: TDA Research, Inc.
    Inventors: Ronald Lee Cook, Silvia DeVito Luebben, Andrew William Myers, Bryan Matthew Smith, Brian John Elliott, Cory Kreutzer, Carolina Wilson, Manfred Meiser
  • Patent number: 7244413
    Abstract: Provided are a functionalized, encapsulated fluorescent nanocrystal comprising a liposome having encapsulated therein one or more fluorescent nanocrystals; use of the functionalized, encapsulated fluorescent nanocrystals in detection systems; and a method of producing functionalized, encapsulated fluorescent nanocrystals. A method of using the functionalized encapsulated fluorescent nanocrystals having affinity molecule bound thereto comprises contacting the functionalized encapsulated fluorescent nanocrystals with a sample so that complexes are formed between the functionalized encapsulated fluorescent nanocrystals and substrate for which the affinity molecule has binding specificity, if the substrate is present; exposing the complexes in the detection system to an excitation light source, and detecting a fluorescence peak emitted from the complexes, if present.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 17, 2007
    Assignee: Invitrogen Corporation
    Inventor: Emilio Barbera-Guillem
  • Patent number: 7229484
    Abstract: The present invention relates to the manufacture and use of novel pre-coated abrasive particles and particle slurries for the chemical mechanical polishing (CMP) of semiconductor wafers, thin films, inter-layer dielectric, metals, and other components during integrated circuit, flat panel display, or MEMS manufacturing. For example, polishing slurry abrasive particles can be pre-coated with additives, such as, inhibitors and/or surfactants during manufacture of the abrasive particles or slurry. The additive's opportunity to react directly with the abrasive particles early in the particle manufacturing process provides a slurry having a more stable, selectable, and predictable ratio of abrasive particles pre-coated with a more stable, selectable, and predictable amount and type of additives.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 12, 2007
    Assignee: Intel Corporation
    Inventors: Reza M. Golzarian, Mansour Moinpour, Andrea C. Oehler
  • Patent number: 7220449
    Abstract: The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: May 22, 2007
    Assignee: Degussa AG
    Inventors: Uwe Schachtely, Christian Panz, Ralf Schmoll
  • Patent number: 7210526
    Abstract: The present invention is a material and method that enables creation of an in situ pumping action within a matrix or otherwise porous media. This pumping action may be used to move materials, namely fluids, through the matrix or porous media to a gathering point. This pumping action may also be used as a vibrational source, using the movement of the matrix itself as the radiator of vibrational, typically acoustic, energy. This vibrational energy may be used for a variety of purposes.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: May 1, 2007
    Inventor: Charles Saron Knobloch
  • Patent number: 7211605
    Abstract: An aerogel material with surfaces containing fluorine atoms which exhibits exceptional hydrophobicity, or the ability to repel liquid water. Hydrophobic aerogels are efficient absorbers of solvents from water. Solvents miscible with water are separated from it because the solvents are more volatile than water and they enter the porous aerogel as a vapor across the liquid water/solid interface. Solvents that are immisicble with water are separated from it by selectively wetting the aerogel. The hydrophobic property is achieved by formulating the aerogel using fluorine containing molecules either directly by addition in the sol-gel process, or by treating a standard dried aerogel using the vapor of fluorine containing molecules.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: May 1, 2007
    Assignee: The Regents of the University of California
    Inventors: Paul R. Coronado, John F. Poco, Lawrence W. Hrubesh
  • Patent number: 7208134
    Abstract: One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated polymer or an organic hydrocarbon bilayer, wherein the two layers are chemically bonded to each other. The stabilized particles are further non-toxic and provide useful enhancements in bioprocesses. Another aspect of the present invention relates to compositions comprising an oxygen-dissolving fluid vehicle and surface modified, nanometer-sized magnetic particles. The inventive compositions have utility in a wide range of applications, but are particularly suitable for use as recyclable oxygen carriers, separation and purification vehicles, and bioprocessing media, including fermentation processes.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: April 24, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Lev E. Bromberg, T. Alan Hatton, Daniel I. C. Wang, Jin Yin, Bernat Olle
  • Patent number: 7192620
    Abstract: A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10 weight percent solids. The wax material is permitted to substantially dry after deposition onto the mold surface. The mold-release coating system also includes a release powder deposited onto the barrier coating after the wax material has been permitted to substantially dry after deposition onto the mold surface.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: March 20, 2007
    Assignee: Polymerit
    Inventor: Bror H. Hanson
  • Patent number: 7192986
    Abstract: An inorganic compound sol comprises a dispersion medium and, dispersed therein, inorganic compound particulates whose surface has been modified by an organic compound exhibiting a molecular polarizability of from 2×10?40 to 850×10?40C2m2J?2. The inorganic compound sol modified by an organic compound possesses a desirable affinity with the dispersion media, providing excellent dispersion stability in solvents while avoiding aggregation of particulates.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: March 20, 2007
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Tsuguo Koyanagi, Hiroyasu Nishida
  • Patent number: 7186440
    Abstract: A process for producing a hydrophobic silica powder, comprises the steps for hydrophobic treatment of: adding to a silica sol in mixed solvent having a silica concentration of 5 to 50 mass % obtained by mixing an aqueous silica sol containing hydrophilic colloidal silica having a specific surface area of 5.5 to 550 m2/g with a hydrophilic organic solvent in a mass ratio of 0.12 to 2.5 based on water in the aqueous silica sol, a disilazane compound of formula (1) (R13Si)2NH ??(1) wherein each R1 is C1-6alkyl group or phenyl group that is selected independently of one another, in an amount of 0.1 to 20 mmol per surface area 100 m2 of the hydrophilic colloidal silica, to obtain a mixture of the silica sol in mixed solvent and the disilazane compound; and heating the mixture at a temperature of 50 to 100° C. for aging it to obtain a slurry dispersion of hydrophobic treated colloidal silica. The process provides a hydrophobic silica powder through a simple hydrophobic treatment step.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 6, 2007
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Keiko Yoshitake, Hirokazu Kato
  • Patent number: 7186441
    Abstract: Processes for forming a filter material that includes coating a filter particle with a coating comprising a lignosulfonate, carbonizing the coating, and activating the coating. The filter particles may include a variety of filter particles, including but not limited to fibers, granules, and screens, and be formed from a variety of materials, such as metals, metal alloys, carbon, ceramic, or glass. Also, the lignosulfonate-coated filter particles may include a large amount of mesopore and/or macropore volume when carbonized and activated. One exemplary process for forming a filter material includes diluting ammonium lignosulfonate with water, mixing the solution with milled glass fibers, removing the excess lignosulfonate solution from the fibers, drying the lignosulfonate coated glass fibers at 65° C. for 12 h, carbonizing the coated glass fibers in a furnace ramped to 70° C. with a rate of 7° C.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: March 6, 2007
    Assignee: Pur Water Purification Products, Inc.
    Inventors: Michael Donovan Mitchell, Blair Alex Owens, Dimitris Ioannis Collias, Andrew Julian Wnuk
  • Patent number: 7182977
    Abstract: A composite substance for forming a conductive paste, comprises a solvent and metal or metal compound particles. The solvent is compatible with an organic component included in the conductive paste, and the metal or metal compound particles are dried metal or metal compound particles having the second solvent adhering to the surface thereof. The conductive paste comprises an organic vehicle, a solvent, and the composite substance which is mixed with the organic vehicle and the solvent. The method for manufacturing the composite substance comprises the steps of washing metal or metal compound particles with water, adding a solvent that is compatible with an organic component included in the conductive paste, thereby replacing water components, and drying the metal or metal compound particles having the solvent adhering to the surface thereof.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: February 27, 2007
    Assignee: TDK Corporation
    Inventors: Tetsuji Maruno, Kazuhiko Oda, Akira Sasaki, Kouji Tanaka
  • Patent number: 7172811
    Abstract: The present disclosure provides a method of preparing a nanocomposite: (a) providing a first solution having a first organic solvent comprising a non-alkali metal salt, a carboxylic acid comprising at least one aryl group, and a polymer dissolved therein; (b) providing a sulfide material; (c) combining the first solution and the sulfide material; and (d) isolating the nanocomposite, wherein the nanocomposite comprises the polymer and a plurality of nanoparticles, wherein each nanoparticle comprises at least one metal sulfide nanocrystal having a surface modified with the carboxylic acid comprising at least one aryl group. The present disclosure also provides the nanocomposites and articles prepared therefrom.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: February 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Igor Y. Denisyuk, Todd R. Williams
  • Patent number: 7163717
    Abstract: Coated zinc oxide particles in which the surfaces of zinc oxide particles are coated with a metallic soap exhibit excellent dispersibility in resin. A thermoplastic resin composition containing the particles and a molded product formed from the composition are endowed with excellent visible light transmission property and ultraviolet light shielding property.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: January 16, 2007
    Assignee: Showa Denko K.K.
    Inventors: Hiroyuki Hagihara, Jun Tanaka, Hisao Kogoi
  • Patent number: 7157113
    Abstract: The present invention relates to a method for encapsulating an inorganic component in a wax, wherein the method comprises the following steps: i) subjecting the inorganic component to shearing forces such that deagglomeration of the inorganic component takes place, which step is carried out in the presence of the wax, with the wax functioning as a spacer to prevent reagglomeration, ii) subsequently increasing the temperature of the mixture from step i) to a value above the melting temperature of the wax, iii) quickly cooling the mixture obtained in step ii), and finally iv) reducing the solidified mixture from step iii) so as to obtain a wax comprising an inorganic component. The invention further relates to a wax particle obtained by the method and to the use of such wax particles in water-based protection systems.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: January 2, 2007
    Assignee: BYK-Cera B.V.
    Inventors: Johannes Bernardus Hendrikus Machielse, Jan Steenbergen
  • Patent number: 7153541
    Abstract: The present invention provides means for inhibiting the oxidation of a metal sulfide-containing material, such as ore mine waste rock or metal sulfide taiulings, by coating the metal sulfide-containing material with an oxidation-inhibiting two-tail lipid coating (12) thereon, thereby inhibiting oxidation of the metal sulfide-containing material in acid mine drainage conditions. The lipids may be selected from phospholipids, sphingolipids, glycolipids and combinations thereof.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: December 26, 2006
    Inventors: Alicia Elsetinow, Michael J. Borda, Martin A. Schoonen, Daniel R. Strongin
  • Patent number: 7141185
    Abstract: Conductive ink compositions which can be cured to highly conductive metal traces by means of “chemical welding” include additives which reduce the curing temperatures for use with low-temperature substrates. Conductive ink compositions can be deposited on a substrate coated with a cure temperature reducing agent to reduce the curing temperatures.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: November 28, 2006
    Assignee: Parelec, Inc.
    Inventors: Brian F. Conaghan, Paul H. Kydd, David L. Richard
  • Patent number: 7135069
    Abstract: An inexpensive method of coating silicon shot with boron atoms comprises (1) immersing silicon shot in an aqueous solution comprising a boric acid and polyvinyl alcohol, and (2) heating the solution so as to evaporate water and form a polymerized polyvinyl alcohol coating containing boron on the shot. A precise amount of this coated shot may then be mixed with a measured quantity of intrinsic silicon pellets and the resulting mixture may then be melted to provide a boron-doped silicon melt for use in growing p-type silicon bodies that can be converted to substrates for photovoltaic solar cells.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: November 14, 2006
    Assignee: Schott Solar, Inc.
    Inventor: Bernhard P. Piwczyk
  • Patent number: 7132126
    Abstract: A simple chemical technique has been developed to grow large quantity of carbon nanostructures, including carbon nanotubes, hydrocarbon nanotubes and carbon nanoonions, in the organic solution at ambient (room) temperature and atmospheric pressure using silicon nanostructures (nanowires, nanodots, ribbons, and porous silicon) as starting materials. These CNT and CNO have the lattice d-spacing from 3.4 ? to 5 ?.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: November 7, 2006
    Assignee: City University of Hong Kong
    Inventors: Shuit-Tong Lee, Chi-Pui Li, Xu-Hui Sun, Ning-Bew Wong, Chun-Sing Lee, Boon-Keng Teo
  • Patent number: 7122244
    Abstract: The present invention relates to a polyamideimide resin solution preparable by reacting (a) aromatic polycarboxylic acids and/or their anhydrides with (b) aromatic imide- and amide-forming components in cresol at temperatures above 170° C., to the use of this polyamideimide solution for the preparation of wire enamels, to the wire enamels in question, and to the enamelled wires coated therewith.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: October 17, 2006
    Assignee: Altana Electrical Insulation GmbH
    Inventors: Sascha Tödter König, Klaus Wilhelm Lienert, Gerold Schmidt
  • Patent number: 7091259
    Abstract: The present invention provides a dental paste, methods of making and using the dental paste, and compositions prepared therefrom. The dental paste includes (a) a filler including porous, non-pyrogenic silica having a silane treated surface and being substantially free of heavy metals and (b) a filler including non-agregated primary silica particles, with the fillers being dispersed in a hardenable resin. Fillers including porous, non-pyrogenic silica, and methods of making and using the fillers, are also provided.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 15, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Hoa T. Bui, Brant U. Kolb, Sumita B. Mitra
  • Patent number: 7081214
    Abstract: This invention provides a low-temperature sintering conductive paste for high density circuit printing which can form a fine circuit having good adhesive force, a smooth surface and low resistance when applied on a substrate and then baked; the conductive paste of the invention uses, as conductive media, in combination with metal fillers having an average particle diameter of 0.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: July 25, 2006
    Assignees: Harima Chemicals, Inc., ULVAC, Inc.
    Inventors: Yorishige Matsuba, Yoshihisa Misawa, Hideyuki Goto, Masayuki Ueda, Katsuhisa Oosako, Masaaki Oda, Norimichi Saito, Toshihiro Suzuki, Noriyuki Abe
  • Patent number: 7074457
    Abstract: A hydrophobic precipitated silica is prepared by a process comprising: a) preparing a mixture of an organopolysiloxane derivative and a precipitated silica; b) conditioning the mixture obtained at a temperature ranging from 10 to 150° C. for a period ranging from 0.5 to 72 h, and c) conducting oxidative heat treatment under fluid conditions at a temperature more than 300° C. with an oxidizing gas.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: July 11, 2006
    Assignee: Degussa AG
    Inventors: Christian Panz, Karl Meier, Ralf Stoffels, Helga Obladen, Ralf Schmoll
  • Patent number: 7060252
    Abstract: Provided are a functionalized, encapsulated fluorescent nanocrystal comprising a liposome having encapsulated therein one or more fluorescent nanocrystals; use of the functionalized, encapsulated fluorescent nanocrystals in detection systems; and a method of producing functionalized, encapsulated fluorescent nanocrystals. A method of using the functionalized encapsulated fluorescent nanocrystals having affinity molecule bound thereto comprises contacting the functionalized encapsulated fluorescent nanocrystals with a sample so that complexes are formed between the functionalized encapsulated fluorescent nanocrystals and substrate for which the affinity molecule has binding specificity, if the substrate is present; exposing the complexes in the detection system to an excitation light source, and detecting a fluorescence peak emitted from the complexes, if present.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: June 13, 2006
    Assignee: BioCrystal, Ltd.
    Inventor: Emilio Barbera-Guillem
  • Patent number: 7056554
    Abstract: The invention concerns a method for producing nanocapsules and microcapsules comprising a polyelectrolyte shell by surface precipitation from the solution, by applying a shell to template particles comprising the steps (a) providing a dispersion of template particles of suitable size in a salt-containing liquid phase which contains the components required to form the shell in a dissolved form and (b) precipitating the components from the liquid phase onto the template particles under conditions which enable the formation of a shell around the template particles that has a thickness of from 1 to 100 nm.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: June 6, 2006
    Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften E.V.
    Inventors: Andreas Voigt, Gleb Sukhorukov, Igor Radtchenko, Alexei Antipov, Edwin Donath, Helmuth Möhwald
  • Patent number: 7041623
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 9, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Ounjie Wang
  • Patent number: 7022375
    Abstract: The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 4, 2006
    Assignee: Degussa AG
    Inventors: Uwe Schachtely, Christian Panz, Ralf Schmoll
  • Patent number: 7019037
    Abstract: Aerogels having a monolayer coating are described. The aerogel and a monolayer forming precursor are provided in a supercritical fluid, whereupon the aerogel and the monolayer forming precursor are reacted in said supercritical fluid to form a covalent bond between the aerogel and the monolayer forming precursor. Suitable aerogels are ceramic oxides such as silica, alumina, aluminosilicate, and combinations thereof. Suitable monolayer forming precursors include alkyl silanes, chlorosilanes, boranes, chloroboranes, germanes, and combinations thereof. The method may also include providing a surface preparation agent such as water, or hydroetching an aerogel to enhance the coating of the monolayer.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: March 28, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Thomas Samuel Zemanian, Glen Fryxell, Oleksiy A. Ustyugov
  • Patent number: 6992155
    Abstract: A method for producing a magnetic particle forming a magnetic material for absorbing electromagnetic waves comprises the steps of mixing an organometallic complex or a metal salt with a chain polymer and dissolving the mixture in a solvent (step S1); raising the temperature of the mixture to reaction temperature (step S2), carrying out a reaction at the reaction temperature (step S3); and forming the magnetic particle having a structure that the periphery of each fine particle formed from the organometallic complex or the metal salt is surrounded by the chain polymer and recovering the formed magnetic particle after the reaction (step S4). The magnetic particle has a nanogranular structure to become a magnetic material for absorbing electromagnetic waves. Such a magnetic particle is produced by a wet reaction. Thus, a larger amount of magnetic particle can be produced by one reaction.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: January 31, 2006
    Assignees: Sony Corporation
    Inventors: Katsumi Okayama, Kaoru Kobayashi, Koichiro Inomata, Satoshi Sugimoto, Yoshihiro Kato
  • Patent number: 6921433
    Abstract: An embodiment of the invention relates to an aqueous dispersion containing pigment-containing particles. The dispersion is an aqueous dispersion comprising particles containing a water-insoluble colorant dispersed in a water-containing medium, wherein the light-scattering intensity of the dispersion is at most 30,000 cps when the absorbance peak value of the dispersion in a visible region is regarded as 1.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: July 26, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideto Kuribayashi, Akio Kashiwazaki, Masashi Hirose, Yoshihisa Yamashita, Takeshi Miyazaki
  • Patent number: 6905631
    Abstract: A de-icing and anti-icing composition in the form of an aqueous solution which includes a carbohydrate, a freezing point depressant and an anti-corrosion agent in the form of phytic acid and its salts.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: June 14, 2005
    Assignee: Sear Petroleum & Transport Corp.
    Inventors: Robert A. Hartley, David H. Wood
  • Patent number: 6899948
    Abstract: A dental material comprising a hardenable resin and silica particles dispersed within the hardenable resin, wherein the silica particles have an average diameter of less than about 200 nm and are present in an amount greater than about 40 wt % of the weight of the dental material. The dental material may further comprise a heavy metal oxide. The dental material can be used as dental adhesives, artificial crowns, anterior or posterior fillings, casting materials, cavity liners, cements, coating compositions, mill blanks, orthodontic devices, restoratives, prostheses, and sealants.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: May 31, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Xiaodong Zhang, Brant Ulrick Kolb, Douglas Alan Hanggi, Bradley Dene Craig
  • Patent number: 6899951
    Abstract: The present invention provides a hydrophobic precipitated silica having the following properties: carbon content 1.0-8.0% methanol wettability ?20-55% reflectance >94% BET/CTAB ratio ??1 DBP absorption <250 g/100 g BET surface area ?50-110 m2/g CTAB surface area 100-150 m2/g Sears number <13. The present invention also provides methods for making and using the hydrophobic precipitated silica and articles and compositions which include the same.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: May 31, 2005
    Assignee: Degussa AG
    Inventors: Christian Panz, Ralf Schmoll, Michael Kempf, Mario Scholz
  • Patent number: 6887517
    Abstract: A new class of surface modified particles and a multi-step Michael-type addition surface modification process for the preparation of the same is provided. The multi-step Michael-type addition surface modification process involves two or more reactions to compatibilize particles with various host systems and/or to provide the particles with particular chemical reactivities. The initial step comprises the attachment of a small organic compound to the surface of the inorganic particle. The subsequent steps attach additional compounds to the previously attached organic compounds through reactive organic linking groups. Specifically, these reactive groups are activated carbon—carbon pi bonds and carbon and non-carbon nucleophiles that react via Michael or Michael-type additions.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: May 3, 2005
    Assignee: TDA Research
    Inventors: Ronald Lee Cook, Brian John Elliott, Silvia DeVito Luebben, Andrew William Myers, Bryan Matthew Smith
  • Patent number: 6887518
    Abstract: Silylated silica is prepared by silylating silica with an organosiloxane composed of A units of the formula (I) (R13SiO1/2)??(I) and B units of the formulae (IIa-c) (R12SiO2/2), and/or??(IIa) (R1SiO3/2), and/or??(IIb) (SiO4/2)??(IIc), optionally having 1 or 2 attached groups —X on Si atoms, where X is OR, R being hydrogen or a monovalent alkyl radical having 1-4 carbon atoms, halogen, or acetoxy, R1 is a saturated or unsaturated, monovalent, optionally halogenated C1-18 hydrocarbon radical the groups ?SiX or ?SiX2 optionally present in a number C, wherein A, B, and C satisfy the relationships: 1?B?100 or 750<B<10 000, B?A+C, and, when A+C=0, 10?B?100 or 750<B<10 000. The silylated silica has a particularly homogenous coating of silylating agent.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 3, 2005
    Assignee: Wacker-Chemic GmbH
    Inventors: Herbert Barthel, Mario Heinemann, August Altenbuchner
  • Patent number: 6878446
    Abstract: A method for coating particles and the coated particles obtained thereby are disclosed. The particles are first placed in a solution of a first monomer that forms a self-assembling monolayer on the particles thereby forming coated particles. The coated particles are then suspended in a second solution that includes a chemical species and an initiator for oxidative polymerization. The chemical species has a higher oxidation potential than the monomers. In addition, the chemical species form a homopolymer in the presence of the initiator that is covalently bound to the first monomers. Particles of semiconductors such as TiO2, SiO2, SnO2, Al2O3 can be coated with polymers that alter the bandgap energy of the semiconducting particles and/or provide other useful surface chemistries.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: April 12, 2005
    Assignee: Agilent Technologies, Inc.
    Inventor: Seiji Inaoka
  • Patent number: 6875465
    Abstract: A method for decorating a substrate using novel thiol-stabilised gold nanoparticles of the general formula HSR where R is a C3-C60 alkyl group, aryl, benzyl, alicyclic, or heterocyclic group which is substituted or unsubstituted, branched or unbranched. The thiol-stabilised gold nanoparticles exhibit a plasmon frequency of between 480 and 600 nm.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: April 5, 2005
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Peter Trenton Bishop, Patricia Ann Marsh, Bénédiete Jeanne Suzanne Thiébaut, Alison Mary Wagland
  • Patent number: 6864298
    Abstract: The invention relates to expandable polyolefin beads which comprise blowing agent and have been coated with from 0.01 to 3% by weight of a salt and/or ester of a long-chain fatty acid, preferably with calcium stearate, to prevent caking during foaming.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: March 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Maletzko, Uwe Keppeler, Klaus Hahn, Isidor de Grave
  • Patent number: 6858323
    Abstract: The invention relates to a document of value, such as a paper of value, ID card or the like, having at least one authenticity feature in the form of a luminescent substance. The luminescent substance has particles consisting of a dye-laden molecular sieve whose structure forms an optical resonator. In said resonator at least one dye can be excited to show stimulated emission, the dye being incorporated in the cavities of the molecular sieve or located in or on the internal and external surfaces of the molecular sieve, and the transition to stimulated emission being accompanied by a detectable change in the luminescent properties of the dye.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: February 22, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Thomas Giering, Rainer Hoppe, Thomas Attenberger
  • Patent number: 6855759
    Abstract: Fine silica particles surface-treated with a silane and having primary particles having a particle diameter of from 0.01 to 5 ?m, which fine silica particles fulfill the following conditions (i) and (ii), a process for their production and an organic resin composition containing such particles as a component are provided. (i) When an organic compound which is liquid at room temperature and has a dielectric constant of from 1 to 40 F/m and fine silica particles are mixed in a weight ratio of 5:1 and shaked, the fine silica particles disperse uniformly in the organic compound, and (ii) the quantity of primary particles remaining as primary particles when methanol is evaporated under heating by means of an evaporator from a dispersion prepared by dispersing the fine silica particles in methanol and thereafter the particles are held at a temperature of 100° C. for 2 hours, is in a percentage of at least 20% based on the quantity of primary particles originally present.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: February 15, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Muneo Kudo, Shoji Ichinohe, Atsushi Asami, Mitsuo Asai, Kazuyuki Matsumura, Masaki Tanaka
  • Patent number: 6828027
    Abstract: In order to reduce the heat transfer coefficient of coated building panels, the coating and the building panel have a high voidage. This high voidage can be obtained by using a fiber mat and a porous coating applied to the fiber mat. The porous coating includes porous glass particles and a low amount of a binder. The porous glass particles are held together by binder bridges, including a silicate binder and a low amount of an organic dispersion binder, for example an polymeric styrol acrylate. The partial volume filled by the binder bridges is small and therefore there is a remarkable first empty partial volume in between the porous particles. A second empty partial volume is located within the glass particles. The total volume of all pores of the glass particles is a relevant part of the total coating volume. This second empty partial volume is a very good thermal isolation because the individual pores are small and to a high percentage closed chambers not connected to the ambient.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: December 7, 2004
    Assignee: BASWAacoustic AG
    Inventor: Hans-Dietrich Sulzer
  • Patent number: 6824821
    Abstract: A process for preparing compacted pigment granules, a process for preparing encapsulated pigment granules, and a process for dyeing landscaping and/or construction materials using the same.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: November 30, 2004
    Inventors: Zachary Gillman, Martin Chasse
  • Patent number: 6821564
    Abstract: Apparatus and method to improve vapor phase diffusion coating of articles. The apparatus provides a barrier to segregate the portion of the article requiring coating from the portion of the article not requiring coating. The fixture is reusable, being unaffected by the coating gases. The fixture reduces the exposure of the coating gases with the portion of the article not requiring coating. By use of an optional seal, the portion of the article not requiring coating can be isolated from the coating gases.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: November 23, 2004
    Assignee: General Electric Company
    Inventors: Nripendra Nath Das, Raymond William Heidorn, Thomas Edward Mantkowski, Patricia Ann Charles
  • Patent number: 6803105
    Abstract: The invention concerns a product based on calcium oxide in the form of rough grains, comprising a protective film coating the grains, based on at least a film-forming compound, which is solid at room temperature and which, when applied on the grains, is in solution or in emulsion in a vaporable aqueous phase. The invention also concerns a method for making said product.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: October 12, 2004
    Assignee: S. A. Lhoist Recherche et Developpement
    Inventors: Alain Laudet, Erwan Gueguen