Organic Material Containing Patents (Class 106/429)
  • Patent number: 10619050
    Abstract: The present invention relates to a process for the production of a mineral filler product comprising a step of dry grinding a calcium carbonate-containing material in the presence of an agent being a polyol. The mineral filler product according to the present invention was found to have a reduced moisture pickup as compared to prior art products.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 14, 2020
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Welker, Patrick A. C. Gane
  • Patent number: 10612492
    Abstract: A precursor composition comprising, before curing, ethylene propylene diene monomer (EPDM), zinc oxide, silica, polymerized 1,2-dihydro-2,2,4-trimethylquinoline, a solid chlorinated paraffin, stearic acid, a five carbon petroleum hydrocarbon, trimethylolpropane trimethacrylate, and a peroxide. A rocket motor including a reaction product of the precursor composition and a method of insulating a rocket motor.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: April 7, 2020
    Assignee: Northrop Grumman Innovation Systems, Inc.
    Inventors: Himansu M. Gajiwala, Steven B. Hall
  • Patent number: 10457811
    Abstract: The present invention relates to methods for producing surface-modified calcium oxide particles having the production steps according to claim 1, novel calcium oxide particles obtained according to these methods, and uses thereof.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 29, 2019
    Assignee: Kalkfabrik Netstal AG
    Inventor: Wendelin Jan Stark
  • Patent number: 10287407
    Abstract: The present invention relates to a breathable film comprising at least one thermoplastic polymer and a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof, a process for producing the same, and the use thereof. Furthermore, the present invention is directed to the use of a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof in breathable films.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 14, 2019
    Assignee: Omya International AG
    Inventors: Martin Brunner, René Burkhalter, Tazio Fornera, Samuel Rentsch, Michael Tinkl, Francesco Pullega, Monroe Moore
  • Patent number: 9951228
    Abstract: The present invention relates to a process for the production of a mineral filler product comprising a step of dry grinding a calcium carbonate-containing material in the presence of an agent being a polyol. The mineral filler product according to the present invention was found to have a reduced moisture pickup as compared to prior art products.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: April 24, 2018
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Welker, Patrick A. C. Gane
  • Patent number: 8968462
    Abstract: The subject matter of the invention relates to aqueous pigment preparations containing (A) 30 to 75% by weight of at least one inorganic white or colored pigment or a mixture of different inorganic white or colored pigments, (B) 0.01 to 15% by weight of at least one fatty acid ethanol amide ethoxylate of the formula (I), in which R1 is a linear or branched alkyl radical or alkenyl radical with 7 to 21 carbon atoms, and n is a whole number from 2 to 40, (C) 0.01 to 5% by weight of at least one amine of the formula (II), in which R2 is a linear or branched alkyl radical or alkenyl radical with 8 to 22 carbon atoms, identical to or different from R1, A represents an iminopropyl group —NH—CH2—CH2—CH2—, an oxyethyl group —O—CH2—CH2— or an oxypropyl group —O—CH2—CH(CH3)—CH2—, and a is a whole number from 0 to 5, wherein the compound of the formula (II); can be present in the form of an ammonium salt, and (E) water.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 3, 2015
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Hendrik Ahrens
  • 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: 20140225021
    Abstract: The present invention relates to a method for producing a dispersion and to the use of a protein hydrolysate as a dispersant or dispersing agent. In particular, the invention relates to a method for producing a suspension as well as the use of a protein hydrolysate as a dispersant in a suspension. According to the invention it is proposed to use in particular hydrolysates of proteins with a consecutive sequence of amino acids with polar and nonpolar side groups as dispersants.
    Type: Application
    Filed: September 17, 2012
    Publication date: August 14, 2014
    Applicant: OTC GMBH
    Inventors: Gerd Dahms, Andreas Jung
  • Publication number: 20140102332
    Abstract: Disclosed are a functional reinforcing filler including inorganic particles surface-modified with an alkenylsilanol obtained by hydrolyzing an alkenylalkoxysilane compound, and a method for preparing the same. Since the disclosed functional reinforcing filler has a functional group having a double bond, it has good reactivity for styrene-butadiene rubber and sulfur. Thus, when used as a functional reinforcing filler in the manufacture of rubber, it allows improvement of physical properties through adjustment of the addition amount of sulfur without additional use of the coupling agent. In addition, because of superior hydrolysis reactivity, the problem of alcohol can be solved and a rubber mixture with long scorch time can be prepared. In particular, when the functional reinforcing filler of the present invention is used in the manufacture of tires, improvement in modulus, tensile strength, rotational resistance and wet traction performance can be expected.
    Type: Application
    Filed: September 18, 2013
    Publication date: April 17, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bok Ryul YOO, Joon Soo HAN, Dong Euy JUNG
  • Publication number: 20140076201
    Abstract: A coated metal pigment that has excellent passivation, dispersion and adhesion properties, a method for producing the coated metal pigment and a coating composition that includes the coated metal pigment are described.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: SILBERLINE MANUFACTURING CO. INC.
    Inventors: Anand SUNDARARAMAN, Yungwan KWAK, Craig KEEMER, John BUCHALA, Mary Kate THOMAS, Chang XU, Parfait Jean Marie LIKIBI
  • Publication number: 20130131187
    Abstract: A color metallic pigment according to the present invention contains at least a metallic pigment, an amorphous silicon oxide film layer that is formed on the surface of the metallic pigment, a metal oxide layer that is formed on the surface of the amorphous silicon oxide film layer and contains a metal oxide other than silicon oxide, and metal particles that are formed on the surface of the metal oxide layer, wherein the metal particles are so formed as to directly cover a part of the metal oxide layer.
    Type: Application
    Filed: June 8, 2011
    Publication date: May 23, 2013
    Applicant: TOYO ALUMINIUM KABUSHIKI KAISHA
    Inventors: Yoshiki Hashizume, Taro Morimitsu, Takayuki Nakao
  • Publication number: 20120132110
    Abstract: The invention is directed to a concentrate composition suitable for melt blending of nano particle size additives into polymers or polymer blends, said composition comprising a waxy matrix carrier material having an melting point of at least 40° C., in an amount of 10 to 99.9 wt. %, based on the weight of the composition and metal or metaloxide primary nanoparticles having a particle size substantially between 1 and 500 nm, wherein the metal oxide nano particles are zinc oxide or silver oxide.
    Type: Application
    Filed: June 8, 2010
    Publication date: May 31, 2012
    Applicant: HOLLAND COLOURS N.V.
    Inventors: Melinda Niederer-Bátorfi, Marten Theodoor Ubbink, Dominicus Wihelmus Raphaël Beekman
  • Patent number: 8088629
    Abstract: Various methods for forming dyed microspheres are provided. One method includes attaching a hydrophilic dye to chemical groups to form a bubble. The bubble includes the chemical groups surrounding the hydrophilic dye and an aqueous solution. The chemical groups are soluble in aqueous and organic solvents. The method also includes disposing the bubble and a microsphere to be dyed in a solvent such that the bubble is incorporated into the microsphere thereby dyeing the microsphere. Another method includes adsorbing a hydrophilic dye on a surface of a hydrophobic polymer core of a microsphere to be dyed thereby dyeing the microsphere. The method also includes attaching chemical groups to the hydrophilic dye. The chemical groups are soluble in aqueous and organic solvents. The chemical groups attached to the hydrophilic dye form an enclosure surrounding the hydrophilic dye and an aqueous solution.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: January 3, 2012
    Assignee: Luminex Corporation
    Inventors: Ananda G. Lugade, Kurt D. Hoffacker
  • Patent number: 7993447
    Abstract: A pigment dispersed liquid prepared by heat-treating an aqueous pigment dispersion containing a self-dispersing pigment, but not a dispersing resin.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: August 9, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Masaaki Itano, Miharu Kanaya, Chie Saito
  • Publication number: 20110144251
    Abstract: A coated particulate solid composition includes a particulate inorganic solid having deposited on its surface a treatment oil comprising lipids. The particulate inorganic solid can include a base particle of titanium dioxide, zinc sulfide, zinc oxide, iron oxide, lead oxide, aluminum oxide, silicon dioxide, zirconium oxide and/or chromium oxide. The treatment oil is optionally a vegetable oil. The treatment oil containing lipids optionally contains glycerides such as triglycerides, and diglycerides, and can contain phospholipids. In one embodiment, the coated particulate solid composition includes particulate titanium dioxide, wherein the treatment oil provides increased bulk density, and enhanced dispersibility in plastic as well as improved lacing resistance.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Inventor: Modasser El-Shoubary
  • Patent number: 7875212
    Abstract: Embodiments of the present invention provide polymer matrix nanocomposites reinforced with nano-scale materials such as nanoparticles and carbon nanotubes and methods of fabricating. The nanomaterials are provided within relatively low weight fractions, for example in the range of approximately 0.01 to about 0.4% by weight and distributed within the matrix by a magnetic mixing procedure to provide substantially uniform reinforcement of the nanocomposites. Advantageously, these nanocomposites provide significantly enhanced tensile strength, strain to failure, and fracture toughness over corresponding neat matrices.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: January 25, 2011
    Assignee: University of Hawaii
    Inventors: Mohammad Naghi Ghasemi Nejhad, Vinod P Veedu, Andrea Yuen, Davood Askari
  • 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: 7749320
    Abstract: A process for the production of finely particulate, inorganic solids by precipitation of the finely particulate inorganic solids from solution is described, in which the surface of the inorganic solids particles is covered (coated) with at least one additive, in which the additive(s) contains a dispersing agent or deflocculating agent, in which the proportion of the additives is overall at most 80 wt. %, preferably at most 40 wt. % or 30 wt. % and particularly preferably at most 15 wt. % of the coated solids, and wherein the additive(s) is added to the starting solution or solutions. Uses of the inorganic solids produced according to the invention are also described.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: July 6, 2010
    Assignee: Sachtleben Chemie GmbH
    Inventor: Djamschid Amirzadeh-Asl
  • Publication number: 20100154680
    Abstract: The present invention relates to pigment granules which contain inorganic filter aids and a process for the production thereof and their use for colouring lime- and/or cement-bound building materials, asphalt, paints, finishes, paper or plastics.
    Type: Application
    Filed: August 20, 2009
    Publication date: June 24, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Holger Friedrich, Herbert Kunstmann, Krzysztof Chlopek, Jüergen Kischkewitz
  • Patent number: 7658793
    Abstract: The invention relates to a pigment preparation based on at least one inorganic pigment and at least one organic pigment, and to a method for producing one such pigment preparation. Said pigment preparation contains particles wherein fine organic pigment particles are combined with inorganic pigment particles, said particles also being provided with an organic macromolecular coating. The inventive pigment preparation is produced by wet-grinding the inorganic and organic pigments, optionally adding other constituents, in the presence of a surface-active substance in the form of a macromolecular organic compound.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 9, 2010
    Assignee: Heubach GmbH
    Inventors: Rainer Heubach, Yvonne Brussaard, Hugo Brussaard
  • Patent number: 7601212
    Abstract: Processes for altering surface properties of pigment particles are provided. The processes include coating the particles with ionic natural polysaccharides or ionic derivatives of natural polysaccharides, providing enhanced properties.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: October 13, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Subramaniam Sabesan, John Davis Bolt
  • Patent number: 7550041
    Abstract: The invention pertains to a highly concentrated pigment comprising from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight of the composition, of a pigment; from 0 to 20% by weight, preferably from 5 to 18% by weight, based on the weight of the composition, of a resin; the total of pigment and resin being from 85 to 98% by weight of the composition; and from 1 to 15% by weight, preferably from 2 to 15% by weight, most preferably from 5 to 15% by weight, based on the weight of the composition, of a C10-C18 alcohol, a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa, or both a C10-C18 alcohol and a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa. Also claimed are a process for its manufacture, comprising dry-milling, blending and kneading the components, and the use of the pigment concentrates for the preparation of a masterbatch, ink, coating, plastic material, toner or colour filter.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: June 23, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Thomas Healy, Lynda Cannon, Tracy Murray
  • Patent number: 7503970
    Abstract: A particulate metal oxide having the 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: April 13, 2007
    Date of Patent: March 17, 2009
    Assignee: Croda International PLC
    Inventors: Graham Paul Dransfield, Susan Cutter, Phillip Laurence Lyth
  • Publication number: 20080289538
    Abstract: The present invention relates to pasty or gellike pigment preparations for colouring lime-bound and/or cement-bound building materials, asphalt, paints, varnishes, paper or plastics and also to a method of preparing them.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 27, 2008
    Inventors: Holger Friedrich, Jurgen Kischkewitz
  • 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: 7390355
    Abstract: A dispersion containing zinc oxide particles having a dispersion particle size of (i) median volume particle diameter in the range from 70 to 130 nm, (ii) less than 16% by volume of particles having a volume diameter of less than 35 nm below the median volume particle diameter, and (iii) more than 84% by volume of particles having a volume diameter of less than 57 nm above the median volume particle diameter. The zinc oxide dispersion can be used in a sunscreen product that exhibits both effective UV protection and improved transparency. The zinc oxide is particularly suitable for use in combination with transparent titanium dioxide.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: June 24, 2008
    Assignee: Croda International Plc
    Inventor: Philip Laurence Lyth
  • Patent number: 7220305
    Abstract: A particulate metal oxide having the 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: November 4, 2005
    Date of Patent: May 22, 2007
    Assignee: Croda International PLC
    Inventors: Graham Paul Dransfield, Susan Cutter, Phillip Lawrence Lyth
  • Patent number: 7150839
    Abstract: Composition comprising a fluorescent material comprising the mixture of one or more metal salts selected from the group consisting of metal oxides and metal hydroxides; one or more carbohydrate(s) selected from the group consisting of sugar and starch; and one or more organic acid(s), method of preparation comprising mixing the components in the presence of water and then drying, and use of the fluorescent material in paper, plastic, polymer, resin, and paint. The resultant papers, plastics, polymers, resins, and paint have whiteness and brightness due to the fluorescence.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: December 19, 2006
    Assignee: Minerals Technologies Inc.
    Inventors: Robin L. Saulsbery, Matthew Frederick Slozer
  • Patent number: 7011703
    Abstract: Inorganic pigments, having deposited on the pigment surface at least one alkenyl- or alkyl-substituted succinic anhydride and at least one organic polyol, possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: March 14, 2006
    Assignee: Kerr-McGee Chemical LLC
    Inventor: Daniel H. Craig
  • Patent number: 6958091
    Abstract: Inorganic pigments treated with at least one amide of a fatty acid and an aliphatic amine possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: October 25, 2005
    Assignee: Kerr-McGee Chemical LLC
    Inventor: Daniel H. Craig
  • Patent number: 6946028
    Abstract: Inorganic pigments treated with one or more of the ?,?-dialkyl substituted linear or branched carboxylic acids and the salts thereof possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: September 20, 2005
    Assignee: Kerr-McGee Chemical LLC
    Inventor: Daniel H. Craig
  • Patent number: 6852158
    Abstract: A method of attaching one or more organic groups onto a particle is described which involves reacting at least one radical with at least one particle wherein the radical is generated from the interaction of at least one transition metal compound with at least one organo-halide compound in the presence of one or more particles capable of radical capture. Variations of this method are also described.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: February 8, 2005
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Wayne Devonport
  • Patent number: 6811601
    Abstract: Pigment preparations comprising A) at least one organic or inorganic pigment and B) at least one ethoxylated and propoxylated and/or butoxylated polyethyleneimine.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Borzyk, Jürgen Huff, Manfred Mielke, Rüdiger Sens
  • Publication number: 20040063013
    Abstract: The present invention relates to a photoconductive organic pigment comprising granular cores and an organic pigment having photoconductive properties which organic pigment adheres to the surfaces of the granular cores, a photoconductive organic pigment dispersion liquid comprising the photoconductive organic pigment, and an electrophotographic photoreceptor comprising an electroconductive substrate laminated with a photosensitive layer containing the photoconductive organic pigment and an electrophotographic device using the electrophotographic photoreceptor.
    Type: Application
    Filed: March 17, 2003
    Publication date: April 1, 2004
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Kazuya Hongo, Seiichi Takagi
  • Patent number: 6699316
    Abstract: The invention relates to a process for the preparation of nano-zinc oxide dispersions stabilized by hydroxyl group-containing inorganic polymers.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: March 2, 2004
    Assignee: Bayer Atiengesellschaft
    Inventors: Thiemo Marx, Michael Mager, Volker Wege, Steffen Hofacker
  • Publication number: 20040007161
    Abstract: A method of attaching one or more organic groups onto a particle is described which involves reacting at least one radical with at least one particle wherein the radical is generated from the interaction of at least one transition metal compound with at least one organo-halide compound in the presence of one or more particles capable of radical capture. Variations of this method are also described.
    Type: Application
    Filed: March 27, 2003
    Publication date: January 15, 2004
    Inventors: James A. Belmont, Wayne Devonport
  • 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
  • Patent number: 6632274
    Abstract: By incorporating and dispersing infrared ray shielding ultrafine particles having an average particle size of from 10 to 60 nm and a volume ratio of ultrafine particles having particle sizes of at least 60 nm being at most 15% of all particles, in a plasticizer, it is possible to obtain an ultrafine particle dispersion composition having the ultrafine particles uniformly dispersed. By using this composition, it is possible to obtain a laminated glass or an interlayer of a laminated glass, which has a small haze value and which is excellent in the infrared ray shielding performance.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: October 14, 2003
    Assignees: Asahi Glass Company, Fuji Titanium Industry Co., Ltd.
    Inventors: Yoshimi Kawamoto, Fuminori Osako, Hitoshi Okada, Kuniko Nagai
  • Publication number: 20030178165
    Abstract: A paper having an improved print quality comprises a paper substrate having a surface with a surface roughness of less than 6 microns and a surface gloss of 5-80% which surface has been coated with a light-weight, low solids content, top coat. The top coat may comprise (i) a rheology modifier/binder component and at least one pigment or (ii) at least one binder coated pigment. The top coat provides a significant improvement to the delta gloss of the so-treated paper.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 25, 2003
    Inventors: Barrett Richard Bobsein, James Tinney Brown, Zhenwen Fu, Janet Drobits Windisch
  • 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: 6596073
    Abstract: The invention relates to a solid pigment composition comprising a) at least one pigment, b) at least one compound selected from the group consisting of b0) a phenol-styrene-polyglycol ether or an ionically modified phenol-styrene-polyglycol ether, b1) a condensation product prepared from b1A) sulphonated aromatics b1B) aldehydes and/or ketones and b1C) optionally one or more compounds selected from the group of unsulphonated aromatics, urea and urea derivatives, and b2) phosphoric acid, phosphonic acid and derivatives thereof, and c) at least one organic thickener.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: July 22, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Roger Nyssen, Josef Witt
  • 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
  • Publication number: 20030056693
    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: Application
    Filed: June 4, 2002
    Publication date: March 27, 2003
    Inventors: Kazuyuki Hayashi, Hiroko Morii, Keisuke Iwasaki
  • 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
  • Publication number: 20030039836
    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: Application
    Filed: August 2, 2002
    Publication date: February 27, 2003
    Applicant: Merck Patent GmbH
    Inventors: Gerhard Pfaff, Helge Kniess, Peter Reynders
  • Patent number: 6521038
    Abstract: A near-infrared reflecting composite pigment comprises a near-infrared non-absorbing colorant and a white pigment coated with the near-infrared non-absorbing pigment. The near-infrared reflecting composite pigment can be produced by mixing a colorant dispersion, in which the near-infrared non-absorbing colorant is dispersed in a liquid medium, with the white pigment in a form selected from powder or a dispersion and then drying the resultant mixture. A near-infrared reflecting coating agent comprises as a coloring agent the near-infrared reflecting composite pigment. A near-infrared reflecting material comprises a base material coated on a surface thereof with the near-infrared reflecting coating agent.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: February 18, 2003
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiromitsu Yanagimoto, Yoshiyuki Zama, Hisao Okamoto, Tohru Hosoda, Yoshio Abe, Michiei Nakamura
  • Patent number: 6488757
    Abstract: The present invention relates to a pearl luster pigment on the basis of a platelet-shaped substrate coated with metal oxides and a top layer which is located on the metal oxide layer and can possess a multilayer structure, comprising a first layer, containing a hydroxide or oxide hydrate of the elements aluminum or silicon, a second layer, containing at least one hydroxide or oxide hydrate of the elements aluminum, silicon, cerium or zirconium, with the exception of the hydroxide or oxide hydrate which forms the first layer, and a third layer, containing at least one organic hydrophobic coupling agent. The present invention also relates to a preparation process and the use of pigments in paints, inks, plastics, coatings and cosmetics.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 3, 2002
    Assignee: Merck Patent Gesellschaft mit beschraenker Haftung
    Inventor: Ralf Glausch
  • Patent number: 6488758
    Abstract: The invention relates to a pearl luster pigment which may possess a first, inner layer, consisting of a platelet-shaped substrate, a second layer, comprising one or more metal oxides, the first and second layers forming a calcined base pigment, a third layer, comprising the corresponding uncalcined oxide, hydroxide or oxide hydrate of the oxide of the second layer, a fourth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon or aluminum, a fifth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon, aluminum, zirconium and/or cerium, this layer differing from the fourth layer, and a sixth layer, comprising one or more organofunctional coupling reagents. The present invention relates to also a preparation process, and the use of the pigments in paints, inks, plastics, coatings and cosmetics.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 3, 2002
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Ralf Glausch, Marita Jekel
  • Patent number: 6451102
    Abstract: The present invention is directed to a process for producing a master batch of pigment, comprising mixing a pigment having a high aspect ratio, embedded in a material increasing bulk density of the pigment, with a plastic so as to produce a dispersion of pigment and plastic.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: September 17, 2002
    Assignee: Merck Patent GmbH
    Inventors: Robin Hilder, Manfred Kieser
  • Patent number: 6447759
    Abstract: To provide an ultraviolet absorbent having high UV shieldability, especially UV-A shieldability, high transparency and good dispersibility. An ultraviolet absorbent, which comprises a flaky substrate coated with ultra-fin zinc oxide particles having a mean particle size of not larger than 100 nm, and which is optionally treated with an organic silicone compound; and a method for producing the ultraviolet absorbent, which comprises calcining particles as coated with basic zinc carbonate in the presence of a complex-forming agent.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 10, 2002
    Assignee: Merck Patent Gesellschaft
    Inventors: Tamio Noguchi, Yukitaka Watanabe