Patents Examined by Shalie Manlove
  • Resin coating pipe and manufacturing method thereof, and fuel tank with resin coating pipe
    Patent number: 6699539
    Abstract: A resin coating pipe wherein a peripheral surface near an end portion of a pipe material (6) is masked through a specified length, and a resin coating layer (7 or 7a) is formed on a rest portion of a surface of the pipe material (6), and the masked portion is made to be an insertion portion (8 or 8a) to be inserted tightly into an inside diameter portion of another fitting member (4), said resin coating layer (7 or 7a) has its end portion being pressurized, and at that portion, a resin connecting portion (17 or 17a) extending along the insertion portion (8 or 8a) and capable of being fitted into an inside diameter portion of another fitting member (4) together with the insertion portion (8 or 8a), is formed.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: March 2, 2004
    Assignee: Hit Kougyo Kabushiki Kaisha
    Inventor: Jun Hirano
  • Continuous processes for producing titanium dioxide pigments
    Patent number: 6695906
    Abstract: Titanium dioxide pigments having improved gloss and durability are disclosed. These pigments are prepared by continuous processes, where pH, temperature, and addition times of hydrous silica and alumina coatings are carefully controlled.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: February 24, 2004
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Michael Hiew, Yarw-Nan Wang, Les Hamor, Brian Tear, Robert McIntyre
  • Intensely colored interference pigments
    Patent number: 6692561
    Abstract: The invention relates to intensely colored interference pigments based on multi-layered plate-like substrates with at least two sequences of layers consisting of (A) a colorless layer with a refraction index n≦1,8; (B) a high-index layer consisting of a mixture of TiO2 and Fe2O3 in a ratio of 1:0.1 to 1:5 and optionally, one or more metal oxides in quantities of to layer (B); and optionally (C) an outer protective layer.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: February 17, 2004
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Sabine Schoen, Klaus Bernhardt, Christoph Schmidt
  • Frontal part comprising a decorative part
    Patent number: 6689434
    Abstract: A frontal part comprising a decorative part made from a support, from a decorative layer applied thereto, and from a heat-cured layer situated on the decorative layer, and also, if desired, comprising a reinforcer for supporting the decorative part. The frontal part may also comprise an intermediate layer between the support and the decorative layer. The support and the reinforcer may each be composed of a thermoplastic, for example of polypropylene or of polyethylene.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: February 10, 2004
    Assignee: Basell Polyolefine GmbH
    Inventors: Klaus Müller, Klaus Klemm
  • Lightweight clay and manufacturing method thereof
    Patent number: 6676743
    Abstract: The present invention provides a lightweight clay which can be easily molded into a given shape, exhibits proper lightweight characteristics and storing characteristics, and can be manufactured at a low cost, and a manufacturing method thereof. In such a lightweight clay and the manufacturing method thereof, an average particle size of the organic hollow micro spheres is set to a value which falls within a range of 15 to 150 &mgr;m and, an addition quantity of the organic hollow micro spheres is set to a value which falls within a range of 0.1 to 6 weight % with respect to a total quantity of the lightweight clay, and whiteness degree (WL) measured in accordance with JIS L 0803 is set to not less than 50.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: January 13, 2004
    Inventor: Toshiyuki Yamamuro
  • Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorant
    Patent number: 6666914
    Abstract: A black colorant for ink-jet printing ink, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent-coating layer formed on at least a part or the surface of said core particles; and a black pigment coat uniformly formed on at least a part of said gluing agent-coating layer. The black colorant for ink-jet printing ink exhibits not only a high blackness and an excellent tinting strength, but also excellent dispersibility and light resistance in spite of fine particles.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 23, 2003
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuyuki Hayashi, Hiroko Morii, Keisuke Iwasaki
  • High performance kaolin pigment, a paper coating color containing high performance kaolin pigment, and a method for making high performance kaolin pigment
    Patent number: 6660076
    Abstract: A high performance kaolin pigment, a paper coating color containing high performance kaolin pigment, and a method for making high performance kaolin pigment, the kaolin pigment being provided with improved optical and rheological properties attained by strict control of size and shape of the particles, as well as size and shape distribution of the particles. The kaolin pigment has ISO brightness characteristics higher than 88.5, a particle size distribution of at least 94% by mass lower than 2 &mgr;m and at most 25% by mass lower than 0.2 &mgr;m and a Hercules viscosity at 1,100 RPM lower than 18 dynes in slurries with a solid content of 70%-75% solids.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: December 9, 2003
    Assignee: Companhia Val Do Rio Doce
    Inventors: Maria Cristina Almeida Valadares, João Duarte Neto
  • Multilayered interference pigments
    Patent number: 6656259
    Abstract: The invention relates to multilayered interference pigments which comprise a platelet-shaped substrate of silicon dioxide which is coated alternately with layers of light-transparent materials having refractive indices of n>1.8 and layers of light-transparent materials having refractive indices of n≦1.8, where the optical thickness of the platelet-shaped substrate and the optical thickness of the individual layers of light-transparent materials having refractive indices of n≦1.8 are the same.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: December 2, 2003
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Gerhard Pfaff, Helge Kniess, Peter Reynders
  • Titanium dioxide pigments with improved gloss and/or durability
    Patent number: 6656261
    Abstract: The present invention provides titanium dioxide pigments with improved gloss and/or durability. The titanium dioxide pigments are made by treating titanium dioxide with a plurality of metal salts under conditions suitable to form the titanium dioxide pigment having improved gloss and/or durability, wherein at least one metal salt is capable of providing a monovalent anion. Preferred pigments of the present invention are substantially-sulfate free.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: December 2, 2003
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Brian Tear, John Stratton, Robert Burniston
  • Calcined kaolin pigments having improved combination of physical and applied properties, their production and use
    Patent number: 6652642
    Abstract: The present invention relates to calcined kaolin products, their production, and use. More specifically, the invention relates to calcined kaolin-containing products having a median diameter particle size of from about 0.5 &mgr;m to about 10 &mgr;m, and a multimodal particle size distribution defined herein. The calcined kaolin products of the invention possess a combination of physical properties and applied properties not previously seen together in calcined kaolin pigments. The products according to the invention find use as flattening (or matting) agents, and as fillers or extenders in paint and coating compositions. More generally, the inventive products may be used wherever calcined kaolins are used.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: November 25, 2003
    Assignee: Imerys Kaolin, Inc.
    Inventors: Edward J. Sare, Stephen C. Raper, Tommy L. Adkins, Julie Figlar
  • Multilayer nacreous pigment
    Patent number: 6648957
    Abstract: Multilayer pearl lustre pigment on the basis of a platelet-shaped substrate comprising a material of low refractive index in the range from 1.35 to 1.8, which comprises at least (i) one first layer comprising a material having a refractive index of more than 1.8, (ii) optionally, a second layer comprising a material of low refractive index in the range from 1.35 to 1.8, (iii) a semitransparent metal layer which is applied to the substrate or to the layers (i) or (ii), and (iv) if desired, an aftercoating, the substrate being platelet-shaped silicon dioxide, aluminium oxide, boron oxide or magnesium fluoride.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 18, 2003
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Gerhard Pfaff
  • Coloring pigment
    Patent number: 6648959
    Abstract: This invention relates to a method for preparing a coloring pigment, wherein an anionic or cationic clay, which clay contains substantially no agglomerates of clay sheets, is subjected to an ion exchange with an organic dye. The invention further relates to a coloring pigment and the use thereof for coloring substrates.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: November 18, 2003
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Hartmut Rudolf Fischer, Lawrence Fabian Batenburg
  • Highly light-scattering pigment mixture
    Patent number: 6648958
    Abstract: Highly light-scattering pigment mixture featuring (i) 70-99.9% by weight of a component A consisting of spherical silicon dioxide with a diameter of less than 50 &mgr;m, coated with titanium dioxide and optionally a further layer of SiO2, and (ii) 0.1-30% by weight of a component B consisting of spherical silicon dioxide with a diameter of less than 50 &mgr;m, coated with titanium dioxide as a first layer and iron(III) oxide as a second, outer layer, the refractive index of the pigment being adjusted to a value of between 1.45 and 1.65.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: November 18, 2003
    Assignee: Merck Patent Gesellschaft
    Inventors: Ralf Anselmann, Martin Knapp, Uta Hillgärtner
  • Iron effect pigments
    Patent number: 6645286
    Abstract: The present invention is concerned with soft-magnetic iron effect pigments with metallic luster, which are produced by grinding reductively treated carbonyl iron powder, and which are passivated either during grinding or subsequent to the grinding. The products find application in the decorative and functional fields in paint and lacquer coatings, coloring of plastics, in printing, cosmetics, and glass and ceramics.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: November 11, 2003
    Assignee: Eckart GmbH & Co. KG
    Inventors: Werner Ostertag, Stefan Trummer, Frank Henglein, Klaus Greiwe
  • Pigment preparation
    Patent number: 6638353
    Abstract: The invention relates to a non-dusting homogeneous pigment preparation notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 50% by weight of water and/or an organic solvent or solvent mixture and from 0.5 to 59.5% by weight of a styrene-modified maleate resin having an acid number >90 mg KOH/g, and to its use in particular to produce dry preparations.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: October 28, 2003
    Assignee: Merck Patent GmbH
    Inventors: Thomas Rathschlag, Carsten Griessmann
  • Pigment granulate for coloring building materials and method for producing the same
    Patent number: 6635107
    Abstract: The invention pertains to pigment granulates for the coloring of building materials and processes to manufacture such granulates. The pigment granulates are granulated from a mixture containing the pigment, at least one wetting agent and/or binder and/or explosive, an agent to reduce the tendency to blister and/or an agent to increase the pigment content in the mixture to be granulated.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: October 21, 2003
    Assignee: Brockhues GmbH & Co.KG
    Inventors: Christian Egger, Klaus Nungess, Adolf Veit, Stefan Volger
  • Calcium phosphate colorants and method for making same
    Patent number: 6630019
    Abstract: Calcium phosphate colorants are provided that comprise calcium phosphate particles, a dye, and aluminum hydroxide and which are resistant to dye migration and suitable for use in food, drugs and cosmetics. The calcium phosphate particles are coated with a dye and the dye is fixed to the particles by the aluminum hydroxide. Also provided is a method for making a calcium phosphate colorant in which aluminum hydroxide is mixed with a calcium phosphate slurry to deposit aluminum hydroxide onto the calcium phosphate particles contained within the slurry.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: October 7, 2003
    Assignee: J. M. Huber Corporation
    Inventors: Kathleen S. Pike, John A. Kostinko
  • Rutile titanium dioxide effect pigments and production thereof
    Patent number: 6626989
    Abstract: A pearlescent pigment comprising substrate particles having an adherent layer of rutile titanium dioxide thereon is prepared by effecting the deposition of hydrous titanium dioxide on the substrate particles after contacting the particles at elevated pH with titanium tetrachloride.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: September 30, 2003
    Assignee: Engelhard Corporation
    Inventors: Carmine V. DeLuca, Jr., Louis R. Cerce, Jr.
  • Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particles
    Patent number: 6623557
    Abstract: A colorant for ink-jet printing ink of the present invention, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent coating layer formed on at least a part of surface of said core particle; and an organic pigment coat uniformly formed on at least a part of said gluing agent coating layer. The colorant for ink-jet printing ink exhibits not only a high tinting strength and a clear hue, but also excellent dispersibility and light resistance in spite of fine particles.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: September 23, 2003
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuyuki Hayashi, Hiroko Morii, Keisuke Iwasaki
  • Structure for wound fiber reinforced plastic tubing and method for making
    Patent number: 6620475
    Abstract: A fiber reinforced plastic article is disclosed which include a liner, at least one single material fiber layer wound on the liner, and at least one composite fiber layer wound on the single material fiber layer. The at least one single material fiber layer and the at least one hybrid fiber layer are impregnated with resin.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: September 16, 2003
    Assignee: Hydril Company
    Inventors: Harris A. Reynolds, Jr., Joel D. Shaw, Thomas J. Walsh, Chris A. Lundberg