Patents Examined by Shalie Manlove
  • Patent number: 7101427
    Abstract: A particulate metal oxide having a mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: September 5, 2006
    Assignee: Imperial Chemical Industries plc
    Inventors: Graham Paul Dransfield, Susan Cutter, Philip Laurence Lyth
  • Patent number: 7060126
    Abstract: The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of ?1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 13, 2006
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Martin Friz, Gerhard Pfaff, Siegfried Raabe, Michael Uhlig
  • Patent number: 7045007
    Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: May 16, 2006
    Assignee: Engelhard Corporation
    Inventor: Frank Bagala, Sr.
  • Patent number: 7018465
    Abstract: A spray glaze or opaque composition for coating dental restorations and other surfaces and objects such as hobby ceramics that comprises about 4 to about 50 weight % glaze material, about 5 to about 60 weight % restoration wetting agent, and about 10 to about 90% non CFC propellant. An opaque composition further comprises about 5 to about 30% opaque material.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: March 28, 2006
    Assignee: Enamelite, LLC
    Inventors: Phillip G. Pitts, James R. Vinson
  • Patent number: 7014701
    Abstract: The present invention provides inorganic pigments including cobalt and aluminum having the spinel crystalline structure that exhibit improved color and/or weatherability in paint and polymer applications. Inorganic pigments according to the invention are formed by adding small quantities of a phosphate compound such as aluminum phosphate and, optionally, chromium (III) oxide, to a raw batch that includes a mixture of cobalt-containing and aluminum-containing inorganic pigment precursors, and calcining the raw batch to obtain the inorganic pigment.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: March 21, 2006
    Assignee: Ferro Corporation
    Inventors: Kimberly Ann Stewart, Terry J. Detrie, Gilbert B. Burkhart, III, Daniel R. Swiler
  • Patent number: 6929692
    Abstract: The invention describes a new calcium phosphate cement powder, whose composition can best be described over the Ca/P molar ratio range of 1.35 to 1.40, most preferably 1.39, and whose two components were prepared by wet chemical synthesis procedures. One component is chemically-synthesized, bi-phasic alpha-TCP (Ca3(PO4)2, 95 wt %)+HA (Ca10(PO4)6(OH)2, 5 wt %) powder, while the second component is again a chemically-synthesized, single-phase DCPD (CaHPO4·2H2O) powder. A setting solution (Na2HPO4·2H2O) is used to form a self-setting calcium phosphate cement from the powder mixture. This cement can be used as bone filler or bone substitute in applications, which require higher rates of resorption.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 16, 2005
    Assignee: Biomet Deutschland GmbH
    Inventor: Ahmet Cüneyt Tas
  • Patent number: 6902606
    Abstract: High viscosity release agents inhibit undesirable sticking of asphalt, concrete, and other materials. The release agents can be used on forms, containers, mixers and various other items. Preferred formulations have little or no water, and are durable enough that a single application is generally suitable for multiple uses without reapplication.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 7, 2005
    Assignee: Reclamation Consulting and Applications, Inc.
    Inventor: Gordon Davies
  • Patent number: 6899757
    Abstract: Disclosed is a method for preparing a pearlescent pigment by coating metal oxides on the synthesized mica, involving the steps of grinding the synthesized mica by agitating the mica with water in a water mixer to a particle size between 100 and 500 ?m and separating the mica, dispersing the separated particles of the synthesized mica in water and adding acid thereto to adjust pH between 1 and 4, adding the metal oxide precursors and a basic aqueous solution thereto while maintaining said pH range until the desired color is attained, and thereby forming at least one hydrous metal oxide layer on the particles of the synthesized mica, and filtering, water-washing, drying and calcining the synthesized mica coated with the metal oxide layer. The method may further involve the step of further pulverizing the synthesized mica roughly ground in a water mixer by using a conventional wet pulverizer so that less than 100 ?m of the synthesized mica may be used as a base material.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: May 31, 2005
    Assignee: Sky Chemical Co., Ltd.
    Inventors: Kil-Wan Chang, Kwang-su Lim
  • Patent number: 6893490
    Abstract: An ink for a display panel that at a time of application is a mixture of a powder material, a water-soluble resin included in a range of 1 wt % to 20 wt % inclusive of the ink, and a water-miscible solvent. The ink is water-soluble, and in comparison to conventional organic inks, the ink of the present invention exhibits a markedly reduced susceptibility to the occurrence of electrostatic action. Thus, even when the ink is discharged through a plurality of fine nozzle holes, for example, it is possible for the application process to be conducted with great efficiency, since the individual ink flows discharged from the nozzle holes flow in a vertically downward direction without reacting with each other and becoming warped as a result. The ink of the present invention may, for example, be a phosphor ink, an Ag electrode ink, a shading film (black matrix) ink, a sealant glass ink, or a white reflective layer ink, and the ink may be used in forming structural layers of a display panel.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: May 17, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kawamura, Keisuke Sumida, Shigeo Suzuki
  • Patent number: 6893494
    Abstract: The invention provides a stable metal zirconium phosphates having formula (I), in which X is a metal or a combination of metals selected from Co, Mn, Ni, Cu, Cd, Fe, Cr, Al, Sn, V, Zn, Sc, Na, Mg, Ca and Si; and n has a molar value in the range of 1.25 to 22. These metal zirconium phosphates are prepared by sol-gel process.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: May 17, 2005
    Assignee: Carborundum Universal Limited
    Inventor: Ravichandran Joghee
  • Patent number: 6884289
    Abstract: The present invention relates to colored pigments based on multicoated platelet-shaped substrates which are distinguished by the fact that they comprise (A) a coating having a refractive index of n>1.8 and a layer thickness of 20-500 nm, (B) a colorless coating having a refractive index of n?1.8 and a layer thickness of 10-100 nm, (C) a colorless coating having a refractive index of n>1.8 and a layer thickness of 20-500 nm, (D) a covering of absorbent pigment particles having a particle size of 1-500 nm, and optionally (E) an outer protective layer, and to their use in paints, coatings, printing inks, plastics, ceramic materials, glasses, for laser marking, in cosmetic formulations and for the production of pigment preparations and dry preparations.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: April 26, 2005
    Assignee: Merck Patent Gmbh
    Inventors: Sabine Schoen, Christoph Schmidt
  • Patent number: 6875264
    Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: April 5, 2005
    Assignee: Engelhard Corporation
    Inventors: Curtis J. Zimmermann, Daniel Stevenson Fuller
  • Patent number: 6866711
    Abstract: A composite pigment is provided with the composite pigment including a dense inorganic material and silica. The pigment composition is characterized by a CTAB surface area of greater than about 20 m2/g; a BET surface area of greater than about 15 m2/g; and a density of greater than about 2.5 g/cm3.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: March 15, 2005
    Inventors: Fitzgerald Alphanso Sinclair, Mark Edward Wozniak, Louis Frank Gatti, William C. Fultz
  • Patent number: 6866710
    Abstract: The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO2 layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as tracers, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: March 15, 2005
    Assignee: Merck Patent GmbH
    Inventors: Lilia Heider, Martin Knapp, Gisela Lenz, Norbert Rick
  • Patent number: 6858072
    Abstract: This invention provides a highly orientated surface-modified pearl pigment excellent in plane orientation (leafing effect). Disclosed are: a surface-modified pearl pigment wherein fine polymer particles adhere, without being mutually aggregated, to hydrated metal oxides via chemical bonding; a process for producing the same: and use thereof for inks, coatings and plastics.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: February 22, 2005
    Assignee: Merck Patent GmbH
    Inventors: Bangyin Li, Katsuhisa Nitta
  • Patent number: 6855192
    Abstract: A release agent for bituminous material is disclosed which comprises a mineral oil-free composition containing an aqueous dispersion of a polyalkenamer, preferably a polyoctenamer. The release agent may additionally contain a dispersing agent and at least one fatty acid ester. The release agent also may be used for the cleaning of surfaces such as motor vehicles, road making machines and environmental surfaces contaminated with bituminous material.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 15, 2005
    Assignee: Schill + Seilacher “Struktol” Aktiengesellschaft
    Inventor: Clara Petri
  • Patent number: 6855196
    Abstract: An ink for a display panel effective in reducing the uneven adhesion of the ink is applied by an ink application apparatus using an inkjet method to form a structural layer (e.g. reflective layer, phosphor layer) of a display panel such as a plasma display panel. The ink is delivered through a nozzle of the ink application apparatus and includes a powder material used in forming the structural layer, water or a water-miscible solvent, a binder formed from a water-soluble resin, and a plasticizer. The flexibility retained by the ink, even after the ink is applied, allows for leveling of the applied ink to occur and uneven adhesion to be reduced as a result.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: February 15, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kawamura, Keisuke Sumida, Shigeo Suzuki
  • Patent number: 6849115
    Abstract: A method of manufacturing aluminum-substituted hematite represented by ?-(Fe1-xAlx)2O3 where x=0.01 to 0.15, by mixing an iron compound and an aluminum compound such that an atomic ratio of Fe to Al falls within the range of 99:1 to 85:15, adding citric acid and ethylene glycol to the mixture of the iron compound and aluminum compound to produce a gel, and pyrolyzing the gel, followed by calcining the pyrolyzed product.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: February 1, 2005
    Assignee: President of Okayama University
    Inventors: Jun Takada, Tatsuo Fujii, Makoto Nakanishi
  • Patent number: 6840993
    Abstract: The present invention relates to silver-colored luster pigments based on multiply coated platelet-shaped substrates, which has at least one layer sequence of TiO2, a colorless coating and another TiO2 layer. The pigment can optionally have an outer protective layer. These luster pigments are useful and to the use thereof in paints, coatings, printing inks, including security printing inks, plastics, ceramic materials, glasses, cosmetic formulations and for producing pigment preparations and dry product forms such as granules, chips, pellets and briquettes.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: January 11, 2005
    Assignee: Merck Patent GmbH
    Inventors: Christoph Schmidt, Andrea Heyland, Claudia Fornoff, Hans-Dieter Brückner
  • Patent number: 6837925
    Abstract: A coloring pearlescent flake pigment capable of providing pearl-like luster caused by interference color and a vivid color caused by a tar color is provided as a new material which contributes to the diversification of cosmetics and paints thanks to its powdery smoothness and the visual effect as well as covering protection effect in an application layer. The coloring pearlescent flake pigment having a double coating layer which is formed on inorganic flake-like particles and which is composed of a high-refraction-index metal oxide (e.g.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: January 4, 2005
    Assignees: Daito Kasei Kogyo Co., Ltd.
    Inventors: Yasushi Kubo, Hideji Kagawa