Organic Material Containing Patents (Class 106/445)
  • Patent number: 10577504
    Abstract: The invention provides a method for preparing a dry titanium dioxide product, comprising the steps of: providing a dispersion comprising titanium dioxide particles; treating the titanium dioxide particles with a silane of formula (I): RII(ORI)aORSiX3??(I) wherein R is a divalent C1-24 organic group that is carbon-bonded to the silicon atom, RI is a C2-6 alkylene group, RII is hydrogen, a C1-16 alkyl group, a C2-16 alkyl ether group, or a C2-12 acyloxy group, X is a hydrolysable group, and a is a number having a value from 3 to 150; and then drying the dispersion to provide a dry titanium dioxide product. The dry titanium dioxide product may optionally be dispersed within a vehicle.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 3, 2020
    Assignee: HUNTSMAN P&A UK LIMITED
    Inventors: John L Edwards, Benjamin D Tucker, Andrew E Brown, Linda Gibbons
  • Patent number: 10427970
    Abstract: A dried glass precursor gel and methods of depositing a powderized or wire form of the dried glass precursor gel to form a glass substrate and/or coating are disclosed. The dried glass precursor gel contains a bulk amorphous oxide-based matrix of primary constituent oxides. One method includes obtaining the dried glass precursor gel, forming a powder or wire from the dried glass precursor gel, melting the powder with a gas stream to form molten droplets, and depositing the molten droplets onto a mold or similar target substrate.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: October 1, 2019
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Scott Cooper, Varun Mukheja, Tilak Gullinkala
  • Patent number: 10324389
    Abstract: An electrostatic charge developing toner includes a toner particle that includes a pigment particle having a surface aluminum proportion by an X-ray photoelectron spectroscopy of 6.0 atom % or more and 12.0 atom % or less and a binder resin having a carboxy group.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 18, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinya Sakamoto, Tsuyoshi Murakami, Tomoaki Tanaka, Masaki Iwase, Ryutaro Kembo
  • Patent number: 8961682
    Abstract: Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions include a photocatalytic pigment material made up of an inorganic pigment and a monomeric anti-oxidants and free radical scavenger that is contacted to the surface of the inorganic pigment.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: February 24, 2015
    Assignee: Empire Technology Development LLC
    Inventors: William Brenden Carlson, Angele Sjong, Feng Wan, Timothy Londergan
  • Publication number: 20140196629
    Abstract: Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions include a photocatalytic pigment material made up of an inorganic pigment and a monomeric anti-oxidants and free radical scavenger that is contacted to the surface of the inorganic pigment.
    Type: Application
    Filed: July 26, 2012
    Publication date: July 17, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: William Brenden Carlson, Angele Sjong, Feng Wan, Timothy Londergan
  • Publication number: 20140031455
    Abstract: The present invention relates to a method for producing a compound that comprises a pseudolaminar silicate of natural origin, which is at least one clay of the paligorskite-sepiolite group, characterized in that said method comprises the following steps: defibrillating the microfibre bundles of the at least one clay in water; dispersing the defibrillated clay in an organic or inorganic liquid solvent until a stable gel is formed; adding to the dispersion at least one clay-surface-modifying agent; removing the solvent from the dispersion by means of a solid-liquid separation process and/or drying process; and deagglomerating the final compound until a powdered product is obtained. A further object of the present invention is the compound that can be obtained using said method, as well as the use of the compound as an additive or filler in composite polymeric materials in order to enhance the properties thereof, the composite polymeric material likewise being encompassed within the present invention.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 30, 2014
    Inventors: Julio Santarén Romé, Eduardo Aguilar Diez, Antonio Esteban Cubillo, Antonio Álvarez Berenguer, Esperanza Benito Cano, Nuria García García, Julio Guzmán Perote, Pilar Tiemblo Magro
  • Patent number: 8475582
    Abstract: The present invention relates to a process for making a titanium dioxide pigment consisting of titanium dioxide and single layer of inorganic surface treatment consisting of aluminum phosphate wherein the pigment is characterized by and isoelectric point which is greater than pH 6 and a negative zeta potential of at a pH of 7.5 or more.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 2, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Erik Shepard Thiele, John Davis Bolt, Scott Richard Mehr
  • Patent number: 8283277
    Abstract: The present invention relates to a coating material comprising (A) at least one binder as component (A) and (B) at least one photocatalytically active particle comprising a core composed of at least one first substance having a diameter of 0.1 to 1 ?m and at least one envelope at least partly surrounding the core and composed of at least one second substance having an average layer thickness of 0.1 to 10 nm as component (B).
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 9, 2012
    Assignee: BASF SE
    Inventors: Alexandra Seeber, Götz-Peter Schindler, Katrin Freitag, Ekkehard Jahns, Antonino Raffaele Addamo, Frank Kleine Jäger, Dirk Klingler
  • Patent number: 7951855
    Abstract: What is disclosed is a plurality of prepaints which are used in any combination to produce base paints and/or colored paints of varying end-use application characteristics. Additionally, a mobile paint factory for producing a plurality of lines of architectural coatings from a plurality of prepaints en route to and/or at various locations is disclosed. The mobile paint factory may include a vehicle having a paint production system and a paint mixer located thereon. Furthermore, a method of producing a plurality of lines of user-selected architectural coatings from a plurality of prepaints en route to and/or at various locations is disclosed. The method may include: providing a mobile paint factory; prompting a user to select through the paint production system an interior or exterior application environment, a paint sheen, and a paint quality; automatically dispensing predetermined amounts of appropriate prepaints; and agitating the dispensed prepaints.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 31, 2011
    Assignee: Microblend Technologies, Inc.
    Inventors: Daniel K. Trevino, III, Mel Sauder, Randall L. Hughes, David C. Philbrook, C. Daniel McClain
  • Patent number: 7919546
    Abstract: What is disclosed is a plurality of prepaints which are used in any combination to produce base paints and/or colored paints of varying end-use application characteristics. Additionally, a mobile-paint factory for producing a plurality of lines of architectural coatings from a plurality of prepaints en route to and/or at various locations is disclosed. The mobile paint factory may include a vehicle having a paint production system and a paint mixer located thereon. Furthermore, a method of producing a plurality of lines of user-selected architectural coatings from a plurality of prepaints en route to and/or at various locations is disclosed. The method may include: providing a mobile paint factory; prompting a user to select through the paint production system an interior or exterior application environment, a paint sheen, and a paint quality; automatically dispensing predetermined amounts of appropriate prepaints; and agitating the dispensed prepaints.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: April 5, 2011
    Assignee: Microblend Technologies, Inc.
    Inventors: Daniel K. Trevino, III, Mel Sauder, Randall L. Hughes, David C. Philbrook, C. Daniel McClain, Mel Sauder, legal representative
  • Publication number: 20100298482
    Abstract: An organic-inorganic hybrid pigment composition is provided comprising an organic pigment, an inorganic pigment, and a fibrous clay. The fibrous clay can be selected from palygorskite, sepiolite, or a combination thereof. The inorganic pigment is selected from rutile pigments, spinel pigments, bismuth vanadate pigments, cerium sulfide pigments, and combinations thereof. The organic pigment is selected from anthraquinone pigments, anthrathrone pigments, anthrapyrimidine pigments, azo pigments, azomethine pigments, quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrol pigments, inanthrone pigments, isoindoline pigments, metal complex pigments, perinone pigments, perylene pigments, phthalocyanine pigments, pyranthrone pigments, pyrazolo-quinazolone pigments, thioindigo pigments, and combinations thereof.
    Type: Application
    Filed: January 21, 2009
    Publication date: November 25, 2010
    Inventors: Lori A. Niewold, Robyn Torres, Gary E. Williams
  • Patent number: 7837785
    Abstract: The present invention relates to pigment granules and to a process for the preparation thereof and their use.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: November 23, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Holger Friedrich, Kai Bütje, Udo Holtmann
  • Patent number: 7815727
    Abstract: A thermoplastic resin composition which comprises (A) 40 to 98 mass % thermoplastic resin and (B) 60 to 2 mass % titanium oxide particles whose surface has been coated with a hydrous oxide and/or oxide of at least one metal selected from the group consisting of aluminum, silicon, zirconium, tin, cerium, titanium, and zinc, wherein the titanium oxide particles contain 80 to 97 mass %, excluding 97 mass %, titanium oxide ingredient and have total content of alkali metal cations and alkaline earth metal cations extractable with pure water of 120 mass ppm or lower. The resin composition is excellent in reflectance and thermal stability in residence during molding into large products.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: October 19, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroshi Kawato, Yoshihiko Horio
  • Patent number: 7754788
    Abstract: The invention relates to a light plaster mixture in pasty form which has improved storage stability. This is based on a composition which contains a binder, inorganic fillers, light fillers, water and also further additives. The light plaster mixture according to the invention can be used in the form of final coats on any bases.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: July 13, 2010
    Assignee: Alsecco GmbH & Co. KG
    Inventors: Matthias Brox, Uwe Michaelis, Uwe Befurt, Holger Rettig
  • Patent number: 7578878
    Abstract: A pigment grade corrosion inhibitor and a method of applying the inhibitor is disclosed. The inhibitor is comprised of a host species comprised of an inorganic compound having a layered structure and a guest species comprised an anionic species of a weak acid. The host species is preferably a double hydroxide having a structure of: [M(II)1?xM(III)x(OH?)2][An?x/n.yH2O], where M(II) is a divalent metal cationic species, M(III) is a trivalent metal cationic species, and An? is an anionic species, preferably with the species present in a range of: 0.2?M(III)/(M(II)+M(III))?0.4.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: August 25, 2009
    Assignee: Wayne Pigment Corp.
    Inventors: John Sinko, Martin W. Kendig
  • Patent number: 7579391
    Abstract: The invention provides titanium dioxide pigments for plastics resin compositions which are excellent in dispersibility, light resistance, and weather resistance and little cause surface imperfection. In particular, the invention provides a titanium dioxide pigment suitable for general-purpose plastics resin compositions which can attain excellent dispersion and lacing resistance even when blended in a high concentration; a titanium dioxide pigment suitable for engineering plastics resin compositions which can attain dispersion properties, silver streaking resistance, inhibition of reduction in molecular weight, and thermal discoloration resistance at high levels; a process for the production of the pigments; and resin compositions containing the pigments. A titanium dioxide pigment for plastics resin compositions, characterized in that each titanium dioxide particle has a dense hydrous silica coat covering its surface and an organic compound coat formed on the silica coat not through an interlayer.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: August 25, 2009
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hideo Takahashi, Masaki Shimojoh, Toshihiko Akamatsu, Keisuke Iriyama
  • Patent number: 7476272
    Abstract: The present invention relates to Aluminum trihydrate slurries comprising aluminum trihydrate particles, an acrylic dispersant, citric acid, synthetic hectorite clay, optionally a compound to adjust pH, a biocide and water. These slurries may be mixed with titanium dioxide slurries to produce a stable slurry blends useful in paper and paper-board applications.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: January 13, 2009
    Assignee: E.I. Du Pont de Nemours & Company
    Inventors: Maureen A. Defeo, Glenn Richard Evers, Patrick F. McIntyre
  • Patent number: 7455726
    Abstract: The present invention relates to photostabilised effect pigments in which one or more calcined and vanadium-containing oxide layers, alone or mixed with sulfates, borates or phosphates, have been applied to a substrate, to a process for the preparation thereof, and to the use thereof in plastics, paints, coatings, printing inks, cosmetics, films, in security printing, for laser marking, in thermal protection or for colouring seed.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: November 25, 2008
    Assignee: Merck Patent GmbH
    Inventors: Ulrich Schoenefeld, Padma Kaviratna
  • Patent number: 7416600
    Abstract: Silicon-titanium mixed oxide powder produced by flame hydrolysis, which consists of aggregates of primary particles, with a BET surface area of 90±15 m2/g, a titanium dioxide proportion of 50±8 wt. % and an anatase/rutile ratio of 60:40 to 70:30. It is produced in that a mixture of silicon halide, titanium halide, hydrogen and primary air is ignited in a burner and the flame is burned into a reaction chamber closed off from the surrounding air, and secondary air and a gas, which increases the temperature in the reaction chamber by combustion and/or which slows down the cooling in the reaction chamber because of low heat transfer, are additionally introduced into the reaction chamber. It can be used in toner compositions.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: August 26, 2008
    Assignee: Degussa AG
    Inventors: Kai Schumacher, Martin Moerters, Uwe Diener, Oswin Klotz
  • Publication number: 20080171818
    Abstract: A treated pigment comprising: (a) an inorganic pigment; (b) an organic compound comprises a fluoroalkyl group and a hydrocarbon group and having the structure: RH-L-RF, wherein RF is a fluorochemical component containing at least one Zerewitinoff hydrogen; RH is an aliphatic group of 1-30 carbons, cycloaliphatic group of 3-30 carbons, an aromatic group of 6-30 carbons, or a group having the structure: R?—(OCH2CHR?)x?—(OCH2CH2)y?—O—, wherein R? is H or an aliphatic group of 1-20 carbons, R? is H or methyl; and x? and y? are the same or different integers ranging from 0-20 except that the sum of x? and y? is at least 1 when R? is H; and L is selected from the group CO, isocyanate, and a mixture of polyisocyanates containing at least three isocyanate groups per RH-L-RF structure. Plastic articles containing a pigment and the organic compound have improved cleanability with all the other needed properties and without the negative property of chaulking.
    Type: Application
    Filed: March 16, 2006
    Publication date: July 17, 2008
    Inventor: Donald Douglas May
  • Publication number: 20080152914
    Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane are substituted with an alkylene group that is terminated with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Robert J. Kostelnik, Christopher J. Drury, Charles A. Wheddon
  • Patent number: 7339000
    Abstract: The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the merchant distributing the paint composition made from the subject premixed compositions need only maintain inventory of four compositions. The particular compositions which are the subject of the invention exhibit stable characteristics during storage in their respective reservoirs. The compositions include a pigment composition, a dispersant thickening agent, a high resin content binder, and a low resin content binder. The compositions are combined in differing amounts to produce paint compositions being suitable for either interior or exterior use and having differing sheens, quality levels, and color bases.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: March 4, 2008
    Assignee: Coatings Management Systems Inc.
    Inventors: C. Daniel McClain, Randall L. Hughes
  • Patent number: 7318861
    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 17, 2003
    Date of Patent: January 15, 2008
    Assignee: BASF Catalysts LLC
    Inventors: Frank Bagala, Sr., Curtis J. Zimmermann
  • Patent number: 7255735
    Abstract: Pyrogenically prepared surface-modified silicon dioxide-titanium dioxide mixed oxides are prepared by spraying pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides with a surface-modifying agent. The surface-modified pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides can be used in sun protection formulation.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 14, 2007
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Kai Schumacher, Steffen Hasenzahl, Heike Riedemann, Ann Gray
  • 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: 7214264
    Abstract: The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: May 8, 2007
    Assignee: Imerys Pigments, Inc.
    Inventors: J. Philip E. Jones, Robert J. Pruett, Jun Yuan, Michael J. Garska, David O. Cummings, Bomi M. Bilimoria, Robin Wesley
  • Patent number: 7160374
    Abstract: A flaky pigment excellent in leafing properties and in adhesion between pigment particles and a coating (resin) was obtained by coating the surface of a flaky pigment with a coupling agent and a phosphate having a perfluoroalkly group or a silane compound. Accordingly, the flaky pigment is excellent as a pigment for coating or printing ink of which brightness and durability are required.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: January 9, 2007
    Assignee: Merck Patent GmbH
    Inventors: Eiji Umehara, Koushiro Kunii
  • Patent number: 7144628
    Abstract: Spherical silica-titania-based fine particles surface-treated with silane are provided. The fine particles have a titanium atom content of 0.001 to 5% by weight, a frictional electrification with iron powder of ?100 to ?300 ?C/g, a bulk density of 0.2 to 0.4 g/ml, and a particle diameter of 0.01 to 5 ?m. The particles are useful as a material for an external additive for an electrostatically charged image developing toner. The toner is unlikely to cause degeneration or scratching of organic photoreceptors, displays excellent dispersibility and favorable flowability and consequently does not cause adhesion to the photoreceptor.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: December 5, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Muneo Kudo, Masaaki Yamaya
  • Patent number: 7138010
    Abstract: The invention is a pigment comprising titanium dioxide and an amino phosphoryl compound. The pigment of the invention imparts improved physical qualities, such as improved lacing resistance and dispersion, when incorporated into polymers.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: November 21, 2006
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Modasser El-Shoubary, M. Kamal Akhtar
  • Patent number: 6899829
    Abstract: A conductive polymer colloidal composition that selectively forms a coating on a non-conductive surface. The conductive polymer colloidal composition is composed of a polymer and a sulfonate dopant. The conductive polymer colloidal composition may also contain conductive colloidal particles such as conductive carbon or metal salt particles, oxidants, stabilizers, and preservatives. The conductive polymer colloidal composition may be employed to selectively coat the non-conductive parts of printed wiring boards such that a uniform metal layer can be deposited on the conductive polymer coat. In addition to a uniform metal layer being formed over the conductive polymer, adhesion between the metal layer and the printed wiring board is improved.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: May 31, 2005
    Assignee: Shipley Company, L.L.C.
    Inventors: James G. Shelnut, Wade Sonnenberg, Patrick J. Houle
  • Publication number: 20040107871
    Abstract: The present invention relates to Aluminum trihydrate slurries comprising aluminum trihydrate particles, an acrylic dispersant, citric acid, synthetic hectorite clay, optionally a compound to adjust pH, a biocide and water. These slurries may be mixed with titanium dioxide slurries to produce a stable slurry blends useful in paper and paper-board applications.
    Type: Application
    Filed: July 28, 2003
    Publication date: June 10, 2004
    Inventors: Maureen A. Defeo, Glenn Richard Evers, Patrick F. McIntyre
  • Publication number: 20030223940
    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: Application
    Filed: December 20, 2002
    Publication date: December 4, 2003
    Applicant: Imperial Chemical Industrial PLC
    Inventors: Graham Paul Dransfield, Susan Cutter, Philip Laurence Lyth
  • Publication number: 20030200899
    Abstract: Natural pigments that can be blended into capsules that satisfy the stability and characteristics required for capsules under practical conditions of production and that also have an aesthetic color. Hard capsules can include 0.01 to 5.0% by weight of natural pigment or natural pigment derivative selected from the group consisting of gardenia red pigment, marigold pigment, purple corn pigment, tamarind pigment and sodium iron chlorophyllin, or from 0.1 to 5.0% by weight of titanium dioxide together with said pigment.
    Type: Application
    Filed: April 7, 2003
    Publication date: October 30, 2003
    Inventors: Kazuyoshi Taniguchi, Hiroshi Ohnuki, Eisaku Sai, Kenji Miyata
  • Patent number: 6620234
    Abstract: The present invention provides a treatment method for rendering inorganic oxide particles, such as TiO2 pigment, hydrophobic by predispersing a suitably reactive organohalosilane into an aqueous media, using intensive mixing means (such as a rotor stator emulsifier or inline static mixer) to form a reactive dispersion. When this dispersion is combined with inorganic oxide particles, such as TiO2 pigment, under sufficient agitation, a hydrophobic inorganic oxide can be formed. The oxides formed by the present invention have good mechanical properties, such as dispersibility in nonpolar substances (i.e., plastics), and they do not degrade physical properties of the pigmented nonpolar substance, such as lacing resistance of thermoplastics.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: September 16, 2003
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Robert J. Kostelnik, Leon Weber, Modasser El-Shoulbary
  • Patent number: 6610135
    Abstract: A titanium-containing finely divided particulate material, characterized by exhibiting a light transmittance of at least 85% as measured at a wavelength of 450-700 nm for a thickness of 10 mm on an aqueous liquid containing the titanium-containing material in a concentration of 0.1 to 6.5 moles per liter as titanium even when the temperature of the liquid is elevated to the boiling point. The titanium-containing material usually has an average particle diameter of 0.8-50 nm, and gives a film having high photocatalytic activity and transparency. The titanium-containing finely divided particulate material is obtained by hydrolyzing titanium tetrachloride in an aqueous solution in the presence of a carboxylic acid.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: August 26, 2003
    Assignee: Showa Denko K.K.
    Inventors: Masahiro Ohmori, Katsutoshi Tamura
  • Patent number: 6596071
    Abstract: Organic and inorganic composite pigments having an average particle diameter of 0.01 to 10.0 &mgr;m composed of a white inorganic particle, an organosilane compound obtained from alkoxysilanes, or polysiloxanes coating on the white inorganic particle, and an organic pigment coat formed on said coating. An ultraviolet light-absorbing agent is present in any portion from the surface of the white inorganic particle to surface of the organic pigment coat. These composite pigments have reduced amounts of organic pigments desorbed from their surface and exhibit excellent light resistance due to their ultraviolet absorbing property.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 22, 2003
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuyuki Hayashi, Keisuke Iwasaki, Mineko Ohsugi, Yusuke Shimohata, Hiroko Morii
  • Patent number: 6582506
    Abstract: Pigment flakes having cores preferably composed of resins, polymers, thermoplastics, and/or thermosets with colorant (pigment and/or dyes) deposited thereon, coating applications thereof, and a method for making pigment flakes which includes providing a core material, compounding the core material, processing the core material into uniform forms such as films, wires, thread with rectangular cross sections and bead strings, providing colorant material, vaporizing the colorant material, exposing a surface of core material to the vaporized colorant material to form a layer of colorant on thereon, and fracturing the resultant colorant layered core material into flakes.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 24, 2003
    Assignee: Hampden Papers, Inc.
    Inventor: Michael E. Archambeault
  • Publication number: 20030101908
    Abstract: Organic and inorganic composite pigments have an average particle diameter of 0.01 to 10.
    Type: Application
    Filed: June 11, 2002
    Publication date: June 5, 2003
    Inventors: Kazuyuki Hayashi, Keisuke Iwasaki, Mineko Ohsugi, Yusuke Shimohata, Hiroko Morii
  • Patent number: 6547870
    Abstract: The invention relates to a non-dusting, homogeneous pigment preparation, comprising ≧40% by weight of one or more effect pigments, 0.5-60% by weight of a polyalkylene glycol and/or one or more polyalkylene glycol derivatives, 0-10% by weight of a redispersing auxiliary, 0-40% by weight of water or an organic solvent or solvent mixture, 0-40% by weight of at least one further hydroxyl-rich resin, and to its use as a precursor for printing inks.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 15, 2003
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Carsten Griessmann, Gerhard Herget
  • Patent number: 6544328
    Abstract: A process for preparing an improved pigment which is readily dispersible in paints and plastics concentrates is provided. In accordance with the process, a particulate pigment is mixed with water to form a slurry thereof, and a surface active agent is mixed with the slurry so that the pigment therein is coated therewith. A preferred surface active agent is a mixture of ethoxylated sorbitan derivatives, non-ethoxylated mono and diglycerides and ethoxylated mono and diglycerides. After the pigment has been coated with the surface active agent, the coated pigment is dried.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: April 8, 2003
    Assignee: Kerr-McGee Chemical LLC
    Inventors: Bruce L. Roberts, Jeffrey D. Elliott, Ronnie L. Hoskins, Bruce R. Palmer
  • Patent number: 6544327
    Abstract: The invention relates to a non-dusting homogeneous pigment preparation which is notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 60% by weight of an aldehyde resin and/or ketonic resin and from 0.1 to 10% by weight of a redispersant.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: April 8, 2003
    Assignee: Merck Patent GmbH
    Inventors: Carsten Griessmann, Wolfgang Hechler, Gerhard Herget
  • Publication number: 20030051634
    Abstract: To provide a high-chromatic flaky pigment with good colorability, and to provide a method for producing the flaky pigment in a simple and inexpensive plant. A high-chromatic flaky pigment of which the entire surface of the flaky substrate coated with a metal oxide having an interference color is further coated with a semi-transparent thin metal film to enhance the interference color of the pigment.
    Type: Application
    Filed: September 18, 2002
    Publication date: March 20, 2003
    Applicant: Merck Patent GmbH
    Inventor: Norio Takahashi
  • Patent number: 6517629
    Abstract: The present invention provides a process for generating titanium dioxide pigments that have reduced moisture retention. By leaching oxidizer discharge and removing alumina containing compounds, one is able to generate a low volatile pigmentary bases. These low volatile pigmentary bases may be processed into finished low volatile pigments that may be combined with polymers to form polymer matrices. These pigments may be incorporated into polymer matrices at high temperatures without significant lacing.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: February 11, 2003
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventor: Stephen P. Kinniard
  • Patent number: 6432195
    Abstract: The invention relates to a non-dusting, homogeneous pigment preparation which is distinguished by the fact that it comprises at least 40% by weight of one or more effect pigments and 0.5-59.5% by weight of a modified colophony resin, based on the pigment preparation, and the use thereof, in particular for the production of dry preparations. The pigment preparation according to the invention and the dry preparations produced therefrom are particularly suitable for the pigmenting of paints, coatings, powder coatings, printing inks and plastics.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: August 13, 2002
    Assignees: Merck Patent Gesellschaft mit beschraenkter Haftung, Lackharzwerke Robert Kraemer GmbH & Co.
    Inventors: Thomas Rathschlag, Carsten Griessmann, Sabine Schoen, Werner Sarfert
  • Patent number: 6409815
    Abstract: Surface-modified conductive pigment obtainable by partial coating of a conductive pigment with an organic modifying agent. The modifying agent is an organometallic compound of the elements silicon, tin, titanium, zirconium or aluminum. The pigment is prepared by dispersing a conductive pigment, subsequently adding the modifying agent, if appropriate as a mixture with a solvent, to the pigment dispersion, and in particular in an amount such that the powder electrical conductance of the partly coated conductive pigment is in the range between 80% of the starting value and 10−7 S, removing the solvent present, if appropriate, with further agitation and heating of the pigment to 100° C. and finally drying the partly coated pigment.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: June 25, 2002
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Alfred Hennemann, Manfred Kieser
  • Patent number: 6395081
    Abstract: The present invention provides methods of preparing a titanium dioxide pigment having improved gloss properties which involves heating an aqueous slurry of base titanium dioxide pigment to a temperature below about 75° C., coating the base titanium dioxide pigment with a silica compound at a temperature below about 75° C. to form a silica coated titanium dioxide pigment; and coating the silica coated titanium dioxide pigment with an alumina compound at a temperature below about 75° C. to form the titanium dioxide pigment having improved gloss.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 28, 2002
    Assignee: Millennium Inorganic Chemical, Inc.
    Inventors: Michael Hiew, Yarw-Nan Wang, Les Hamor, Brian Tear, Robert McIntyre
  • Patent number: 6387498
    Abstract: A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers on opposing sides of the reflector layer. The resulting core flake section is a very thin three-layered structure that exhibits a uniaxial compressive strength much greater than a corresponding uniaxial tensile strength. This structure provides the benefits of rigidity and brittle fracture during manufacturing and application processes, which ultimately provides favorable planar and specular reflectance characteristics for the pigment in the visible wavelength range. A variety of outer coating layers can be formed around the core flake sections, such as various dielectric and absorber layers having thicknesses dependent upon the desired optical characteristics of the pigment.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: May 14, 2002
    Assignee: Flex Products, Inc.
    Inventors: Kent E. Coulter, Thomas Mayer, Roger W. Phillips, John S. Matteucci
  • Patent number: 6383638
    Abstract: A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers on opposing sides of the reflector layer. The resulting core flake section is a very thin three-layered structure that exhibits a uniaxial compressive strength much greater than a corresponding uniaxial tensile strength. This structure provides the benefits of rigidity and brittle fracture during manufacturing and application processes, which ultimately provides favorable planar and specular reflectance characteristics for the pigment in the visible wavelength range. A variety of outer coating layers can be formed around the core flake sections, such as various dielectric and absorber layers having thicknesses dependent upon the desired optical characteristics of the pigment.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 7, 2002
    Assignee: Flex Products, Inc.
    Inventors: Kent E. Coulter, Thomas Mayer, Roger W. Phillips, John S. Matteucci
  • Patent number: 6334893
    Abstract: The present invention relates to pigment mixtures containing at least two components component A being Al2O3 flakes coated with one or more metals, metal oxides and/or metal sulfides and component B being acicular or spherical colorants, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: January 1, 2002
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Gerhard Pfaff, Sabine Schoen, Kaiman Shimizu
  • Patent number: 6235105
    Abstract: Optical coating compositions containing thin film particulates or pigments that are capable of imparting to the coating preselected optical characteristics or properties, such as selective reflectance, transmission and absorptance of light energy, are comprised of film forming binder and improved high volume pigment particles dispersed in the binder. Each pigment particle is a high volume flake comprised of an inorganic or polymer core having two sides and a thin film optical structure deposited onto each of the two sides of the core. The core occupies a large volume of the coating composition and dramatically reduces the number of flakes and the amount of thin film structures required to produce a coating of given thickness and desired optical properties. The core may also be fabricated to have diffuse and irregular side surfaces in order to render the applied coating visually diffuse and nonspecular. Methods of making the pigment particles are disclosed.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 22, 2001
    Assignee: General Atomics
    Inventors: Ronald N. Hubbard, Terry D. Gulden, Michael T. Martin