Aluminum Compound Containing, E.g., Feldspar, Mullite, Etc. Patents (Class 106/483)
-
Publication number: 20110203485Abstract: Methods for treating lignocellulosic material or pigment with a reductive bleaching solution generally include washing the lignocellulosic material or pigment with a reducing agent of magnesium dithionite. The method includes at least one reductive stage and at least one peroxide stage. Also disclosed are methods for preparing dithionite solution wherein magnesium bisulfite is reduced with borohydride solution to obtain dithionite. Bleached lignocellulosic material or pigment obtained with the treatment methods are also disclosed.Type: ApplicationFiled: October 30, 2009Publication date: August 25, 2011Applicant: KEMIRA OYJInventors: Risto Rahkola, Birgitta Peltopakka, Hannu Hämäläinen, Jonas Konn, Sari Vahlroos-Pirneskoski
-
Patent number: 7998266Abstract: This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer.Type: GrantFiled: February 9, 2007Date of Patent: August 16, 2011Assignee: Toyo Aluminium Kabushiki KaishaInventors: Taro Morimitsu, Takayuki Nakao, Yoshiki Hashizume, Hideaki Minamiyama, Masakazu Nakamura
-
Patent number: 7914617Abstract: Nanoparticle dispersions, inks, pastes, lotions and methods of their manufacture are disclosed. Multifunctional, nanocomposite, hollow nanoparticles, and coated nanoparticle dispersions are also discussed.Type: GrantFiled: November 25, 2003Date of Patent: March 29, 2011Inventor: Tapesh Yadav
-
Patent number: 7887849Abstract: The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiO2 lamellae, Fe2O3 lamellae or Al2O3 lamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.Type: GrantFiled: June 30, 2005Date of Patent: February 15, 2011Assignee: Merck Patent GmbHInventors: Dieter Heinz, Ralf Anselmann, Klaus Boehm, Sabine Schoen
-
Patent number: 7884055Abstract: A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells.Type: GrantFiled: December 4, 2008Date of Patent: February 8, 2011Assignee: Intevep, S.A.Inventors: George Quercia, Yibran Perera, Aiskely Blanco, Fedymar Pereira
-
Publication number: 20100311871Abstract: There is provided colloidal silica particles comprising at least one polyvalent metal element M selected from a group consisting of iron, aluminum, zinc, zirconium, titanium, tin, and lead in an average content of 0.001 to 0.02 in terms of an M/Si molar ratio, and having an average primary particle diameter of 5 to 40 nm, wherein the content of the polyvalent metal element M present in an outermost layer of the colloidal particles is 0 to 0.003 atom per square nanometer (nm2) of a surface area of the colloidal particles; and a silica sol that the colloidal silica particles are dispersed in an organic solvent, a silica sol that the colloidal silica particles are dispersed in a polymerizable compound, and a silica sol that the colloidal silica particles are dispersed in a dicarboxylic anhydride.Type: ApplicationFiled: February 12, 2009Publication date: December 9, 2010Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Naohiko Suemura, Keiko Yoshitake, Toshiaki Takeyama
-
Patent number: 7842632Abstract: A pulling roll for glass manufacture comprised of a high-temperature millboard material. The millboard comprises aluminosilicate refractory fiber, silicate, mica, and kaolin clay. A method of manufacturing a pulling roll is disclosed, together with a roll produced by the methods disclosed herein. The method comprises forming a pulling roll and densifying at least a portion of the pulling roll by exposing to the pulling roll to high temperatures.Type: GrantFiled: February 10, 2009Date of Patent: November 30, 2010Assignee: Corning IncorporatedInventors: Dean Veral Neubauer, Maurice Lacasse
-
Publication number: 20100297545Abstract: The present invention provides a preparation method of composite silica microparticles with monodispersity, comprising the steps of: (a) adding at least one precursor selected from a titania precursor and an alumina precursor, and a silica precursor to a solvent, which are hydrolyzed to form composite silica microparticles; (b) drying and calcining the composite silica microparticles; and (c) hydrophobically treating the calcined composite silica microparticles.Type: ApplicationFiled: April 26, 2010Publication date: November 25, 2010Applicant: Sukgyung AT Co., Ltd.Inventors: Young Cheol Yoo, Jong Gil Shim, Byeong Ok Jo, O Sung Kwon
-
Publication number: 20100291014Abstract: Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.Type: ApplicationFiled: May 13, 2010Publication date: November 18, 2010Applicant: MERCK Patent GesselschaftInventors: Mark Tellefsen, Qinyun Peng
-
Publication number: 20100276630Abstract: A method relating to making a metal coated filler includes mixing a solution of an organic diol with a plurality of porous filler particles to obtain a support mixture; contacting a metal salt solution with the support mixture forming a reaction mixture; and heating the reaction mixture to a temperature within a temperature range from about 50 degrees Celsius to about 200 degrees Celsius. The metal cations in the metal salt solution are reduced to metal particles by the organic diol and are disposed on the porous filler particles and on filler particle pore surfaces. The metal coated filler may then be optionally isolated. Electrically and/or thermally conductive articles including the metal coated fillers and methods for their manufacture are also disclosed.Type: ApplicationFiled: April 29, 2010Publication date: November 4, 2010Applicant: LAIRD TECHNOLOGIES, INC.Inventors: Bukkinakere Kapanipathaiya Chandrasekhar, Shalini Kandoor, Adyam Srinivasa Mukunda
-
Publication number: 20100276626Abstract: The invention relates to a coating compound for automobile construction, comprising a filler, preferably an aluminum silicate-based filler, which reduces, more particularly prevents, bubbling on transition from the wet state to the dry state.Type: ApplicationFiled: November 18, 2008Publication date: November 4, 2010Applicant: EFTEC EUROPE HOLDING AGInventors: Joachim Seitzer, Max Lauchenauer, Heinrich Sommer
-
Publication number: 20100255047Abstract: The present invention relates to effect pigments based on thin glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils.Type: ApplicationFiled: June 16, 2010Publication date: October 7, 2010Inventors: Ralf ANSELMANN, Klaus Ambrosius, Marcus Mathias
-
Publication number: 20100203093Abstract: The present invention relates to pigments, comprising a plate-like substrate of perlite, and (a) a dielectric material, especially a metal oxide, having a high index of refraction; and/or (a) a metal layer, especially a thin semi-transparent metal layer; a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass.Type: ApplicationFiled: June 26, 2008Publication date: August 12, 2010Applicant: CIBA CORPORATIONInventors: Patrice Bujard, Philippe Bugnon, Marc Baysang
-
Patent number: 7772290Abstract: A method to prepare multi-phobic effects nanosized-structure film and its application are described, which features nanosized silica, titanium oxide and zinc oxide compounded materials of previous size 3-100 nm are in-situ combined with substrate through fluorocarbon surfactants and perfluoro alkyl filming substance under specific conditions to form a nanosized-structure film. The reaction between fluorocarbon surfactants and hydroxyl groups on surfaces of nanosized particles renders the modified nanosized particle and nanosized film having extremely high chemical stability, resistance, and the capacity to repel and disperse water, oil, bacteria, organic dust, gas, electricity, magnetism and light (i.e., multi-phobic effects). This technology may be widely used in surface modification of fabric, chemical fiber, cotton, wool, glass product, brick-stone concrete and wood wall.Type: GrantFiled: December 9, 2005Date of Patent: August 10, 2010Inventors: Ho Cheong Poon, Jing Chun Liu, Fugao Chen
-
Publication number: 20100175587Abstract: The present invention relates to interference pigments based on coated flake-form substrates which are distinguished by the fact in that they comprise (A) a layer of SiO2 having a layer thickness of 5-350 nm, (B) a high-refractive-index coating having a refractive index n of >1.8 and/or (C) an interference system consisting of alternating high- and low-refractive-index layers and optionally (D) an outer protective layer, and to the use thereof in paints, coatings, automotive paints, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, in toners for electrophotographic printing processes, in seed, in greenhouse sheeting and tent awnings, as absorbers in the laser marking of paper and plastics, in cosmetic formulations, for the preparation of pigment pastes with water, organic and/or aqueous solvents, and for the preparation of pigment preparations and dry preparations.Type: ApplicationFiled: March 22, 2010Publication date: July 15, 2010Inventors: Reinhold Rueger, Klaus Ambrosius, Marcus Mathias, Helge Bettina Kniess
-
Publication number: 20100170419Abstract: The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g.Type: ApplicationFiled: June 4, 2008Publication date: July 8, 2010Applicant: AKZO NOBEL N.V.Inventors: Michael Persson, Freddie Hansson, Annika Viola Pal, Lars Lindahl, Joakim Carlën
-
Patent number: 7717988Abstract: A fire resistive coating made Lassenite N Pozzolan and a water based paint. The Lassenite N Pozzolan is present in a range from about 20% by weight of the composition to about 80% by weight of the composition. The water-based paint present in the range from substantially 20% by weight of the composition to substantially 80% by weight of the composition.Type: GrantFiled: June 8, 2007Date of Patent: May 18, 2010Assignee: Versa Terra InternationalInventors: Harry H. Chappell, Darius Chung, Robert R. Swinney
-
Publication number: 20100119769Abstract: A bonding material for a honeycomb structure comprises inorganic particles in which D90/D10 is from 10 to 500, D10 is 100 ?m or less and D90 is 4 ?m or more, and the D10 and D90 are the values of 10% diameter and 90% diameter from a smaller particle diameter side, respectively, in volume-based integrated fractions of a particle diameter distribution measurement by a laser diffraction/scattering method.Type: ApplicationFiled: January 15, 2010Publication date: May 13, 2010Applicant: NGK Insulators, Ltd.Inventors: Atsushi Watanabe, Suguru Kodama, Shuichi Ichikawa, Fumiharu Sato
-
Publication number: 20100112280Abstract: There is provided a coating material for a honeycomb structure, the coating material including inorganic particles or organic particles having D90/D10 of 5 to 50 with D10 of 50 ?m or less and D90 of 4 ?m or more (wherein D10 and D90 are values of 10% diameter and 90% diameter, respectively, in volume-based integrated fraction of a particle diameter distribution measured by a laser diffraction/scattering method from the smaller particle diameter side).Type: ApplicationFiled: January 15, 2010Publication date: May 6, 2010Applicant: NGK Insulators, Ltd.Inventors: Masaki Iwamoto, Atsushi Watanabe, Shuichi Ichikawa
-
Publication number: 20100095868Abstract: The invention relates to coated pearlescent pigments, whereby the coating covers the pearlescent pigments and comprises uncured, however, chemically cross-linkable and/or oligomeric and/or polymeric binding agents that can be cross-linked by heat, IR radiation, UV radiation and/or electron rays. The invention also relates to a method for producing the coated pearlescent pigments and to the use thereof. The invention additionally relates to a coating composition and to a coated article.Type: ApplicationFiled: June 23, 2006Publication date: April 22, 2010Inventors: Günter Kaupp, Ulrich Schmidt, Burkhard Schreiber, Alexander Albrecht
-
Publication number: 20100063203Abstract: A coating composition containing a build-up organic pigment fine-particle.Type: ApplicationFiled: November 1, 2007Publication date: March 11, 2010Applicant: FUJIFILM CorporationInventors: Tadahisa Sato, Hideki Maeta, Jun Tanabe, Hirokazu Kyota
-
Publication number: 20090301345Abstract: Pyrogenically produced silicon dioxide doped with aluminum oxide by means of an aerosol is produced by introducing an aqueous aerosol of an aluminum salt into the flame of a pyrogenic silica producing flame hydrolysis method or a flame oxidation method. The silicon dioxide doped with Al2O3 by means of an aerosol may inter alia be used in the production of inkjet paper or inkjet films.Type: ApplicationFiled: May 26, 2009Publication date: December 10, 2009Inventors: Helmut Mangold, Mitsuru Ochiai, Holger Glaum, Astrid Muller
-
Publication number: 20090301350Abstract: Use of pyrogenic metal oxide for the manufacture of a selfcompacting composition comprising hydraulic binders and having high early strength, the composition comprising at least one hydraulic binder and water as further constituents and the product of the BET surface area, in m2/g, of the pyrogenic metal oxide and the proportion by weight of the pyrogenic metal oxide based on the hydraulic binder being 20 to 200 m2/100 g of hydraulic binder.Type: ApplicationFiled: March 12, 2007Publication date: December 10, 2009Applicant: Evonik Degussa GmbhInventors: Christoph Tontrup, Reinhard Trettin, Michael Geyer
-
Patent number: 7611815Abstract: An external additive for a toner for electrophotography which contains oxide fine particles which contain silicon, in which the oxide fine particles have a primary particle diameter of 30 nm to 300 nm in number average, a standard deviation ? of a particle size distribution of the primary particle diameter satisfies a relation of: R/4???R, in which the R expresses the primary particle diameter, the oxide fine particles are substantially spherical having a circularity SF1 defined as equation (1) of 100 to 130 and a circularity SF2 defined as equation (2) of 100 to 125; SF1=(L2/A)×(?/4)×100??equation (1) SF2=(P2/A)×(1/4?)×100??equation (2), in the equations, “L” expresses the absolute maximum length of the oxide fine particles; “A” expresses a projected area of the oxide fine particles; and “P” expresses a maximum perimeter of the oxide fine particles.Type: GrantFiled: July 15, 2003Date of Patent: November 3, 2009Assignee: Ricoh Company, Ltd.Inventors: Hideki Sugiura, Satoshi Mochizuki, Kazuhiko Umemura, Shinya Nakayama, Yasuo Asahina
-
Publication number: 20090260541Abstract: An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or “engineered” particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size “engineered” powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.Type: ApplicationFiled: September 25, 2008Publication date: October 22, 2009Inventors: David D. Kragten, Christy Karr, JR., Scott VanRemortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
-
Publication number: 20090233016Abstract: A method for the preparation of silicium dioxide dispersions is provided, wherein the surface of the silicium dioxide is modified by a treatment with the reaction products, formed in a separate reaction step, of at least one compound of trivalent aluminum or of tetravalent zirconium or a mixture thereof with at least one aminoorganosilane; and the invention also relates to recording sheets for ink jet printing having such a dispersion incorporated in an ink-receiving layer.Type: ApplicationFiled: March 2, 2009Publication date: September 17, 2009Inventors: Urs Furholz, Vincent Ruffieux, Meinrad Schar
-
Patent number: 7503971Abstract: A surface coating composition which exhibits low solar absorption and preferential emission at wavelengths corresponding to atmospheric windows in the infra-red regions is provided by the addition of microspheres to a composition containing a solar reflective pigment.Type: GrantFiled: June 3, 2002Date of Patent: March 17, 2009Assignee: Skycool Pty Ltd.Inventors: John Wesley Butler, legal representative, Conrad Stephen Wojtysiak
-
Publication number: 20090047424Abstract: The present invention relates to tinted optical lenses and to methods of manufacturing tinted optical lens. This invention relates to a method for tinting optical lenses using an ink receptor film. The method of the invention allows a good transfer of the color to the substrate which represents the support of lens, a good final coloration of the substrate with good color homogeneity. The invention relate also to a method of tinting optical lenses, using the said ink receptor film which is applied onto a primer layer coating the substrate of the lens. The ink receptor material comprises an inorganic filler and an water-based emulsion. Preferably the ink receptor material also comprises a water-soluble polymer, a modified cationic polymer and a carrier able to accelerate the absorption of the ink into the substrate.Type: ApplicationFiled: January 25, 2006Publication date: February 19, 2009Applicant: Essilor International/ Nikon-Essilor Co., Ltd.Inventor: Tsukasa Momma
-
Publication number: 20090022943Abstract: There is provided a bonding material composition capable of suppressing crack generation on an end face of a resultant honeycomb structure to a large extent by reducing anisotropy of Young's modulus after curing of the bonding material by the use of an isotropic filler without using inorganic fibers. The bonded body has two or more members unitarily bonded by means of a bonding material layer, and the relational expression of 0.5<Ez/Ex<1.5 is satisfied when a Young's modulus in a direction perpendicular to a bonded surface of the bonding material layer is Ez and a Young's modulus in a direction parallel to the bonded surface and parallel to a longer axial direction of the bonded surface is Ex and wherein the bonded material has a porosity of 25 to 85%.Type: ApplicationFiled: September 22, 2008Publication date: January 22, 2009Applicant: NGK INSULATORS, LTD.Inventors: Takahiro TOMITA, Kenji MORIMOTO
-
Publication number: 20090017082Abstract: This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer.Type: ApplicationFiled: February 9, 2007Publication date: January 15, 2009Inventors: Taro Morimitsu, Takayuki Nakao, Yoshiki Hashizume, Hideaki Minamiyama, Masakazu Nakamura
-
Publication number: 20080305184Abstract: The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiO2 lamellae, Fe2O3 lamellae or Al2O3 lamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.Type: ApplicationFiled: June 30, 2005Publication date: December 11, 2008Inventors: Dieter Heinz, Ralf Anselmann, Klaus Boehm, Sabine Schoen
-
Publication number: 20080271641Abstract: In an alkali activated hydraulic binder containing slags and aluminium silicates slag, in particular furnace slag in amounts from ?20% (w/w), aluminium silicates different from furnace slag such as for example flue-ash and natural aluminium silicates, such as for example basalt, clays, marl, andesite or zeolite, in amounts from 5 to 75% (w/w) and an alkali activator in an amount, which corresponds to a Na2O equivalent defined as (Na2O+0.658 K2O) (ASTM C 150) between 0.7 and 4% (w/w), respectively related to the entire mixture are present in the mixture as constitutive components.Type: ApplicationFiled: April 5, 2005Publication date: November 6, 2008Applicant: Holcim Ltd.Inventors: Suz-chung Ko, Peter Kruspan, Juraj Gebauer
-
Patent number: 7416589Abstract: An air-droppable wildfire retardant composition including Lassenite N pozzolan is a natural siliceous (amorphous) mineral, consisting of the layers of diatoms and volcanic tuffs of Northern California's Cascade Range. The Lassenite pozzolan is mixed with a thickener such as Bentonite clay, a measured volume of water forming a slurr-type mixture capable of suspending the particles of pozzolan in a mixture having a viscosity sufficient to avoid solids separation. The inventive fire retardant contains substantially three innocuous ingredients which have no harmful effects to the atmosphere, plant, or animal life.Type: GrantFiled: November 13, 2006Date of Patent: August 26, 2008Assignee: Versa Terra InternationalInventors: Harry Harvey Chappell, Darius Chung, Robert R. Swinney
-
Patent number: 7399353Abstract: Disclosed are a process for producing a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity, which comprises suspending low structured hydrophobic oxidic particles in at least one organic suspension agent and then adding from 0.05% to 15% by weight based on the suspension medium of high structured hydrophobic oxidic particles, a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity and the use thereof for producing soil and water repellent coatings on articles.Type: GrantFiled: September 26, 2003Date of Patent: July 15, 2008Assignee: Degussa AGInventors: Edwin Nun, Markus Oles, Frank Menzel
-
Patent number: 7374787Abstract: An aqueous dispersion, having a silicon dioxide powder having a silicon dioxide content of 10 to 60 wt.%, wherein the aqueous dispersion is stable in the pH range of 2 to 6, the aqueous dispersion additionally contains at least one compound, which is at least partially soluble in aqueous solution in the pH range 2 to 6 in the form of polyvalent cations, these being stable in a silicate-like environment as an anionic component of the particle surface of the silicon dioxide powder, the quantity of cation-providing compound in relation to the surface of the silicon dioxide is 0.001 to 0.1 mg cation-providing compound/m2 silicon dioxide surface, the cation-providing compound being calculated as the oxide, and the zeta potential of the aqueous dispersion has values of less than or equal to zero.Type: GrantFiled: August 21, 2003Date of Patent: May 20, 2008Assignee: Dequssa AGInventors: Wolfgang Lortz, Christoph Batz-Sohn, Gabriele Perlet, Werner Will, Gerrit Schneider, Peter Neugebauer
-
Patent number: 7364641Abstract: Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a swelling clay which has a TAPPI brightness of at least 70.Type: GrantFiled: June 18, 2002Date of Patent: April 29, 2008Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventors: Gordon Cheng Chen, Stephanie Caine Williams, Swindell Allen Grimsley
-
Patent number: 7335342Abstract: In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities followed by digesting acid treated Kimberlite tailing with alkali solution in a open or closed system to obtain sodium silicate useful for commercial applications.Type: GrantFiled: March 14, 2006Date of Patent: February 26, 2008Assignee: Council of Scientific and Industrial ResearchInventors: Raksh Vir Jasra, Hari Chand Bajaj, Rajesh Shantilal Somani, Haresh Mahipatlal Mody, Jatin Rameshchandra Chunawala, Devendra Lalijibhai Ghelani, Hemal Narendrakumar Ranpara, Dipti Jivanbhai Barochiya, Suresh Chandra, Maharaj Kishan Dhar, C. Kesava Rao, Kamlesh Kumar
-
Publication number: 20080015104Abstract: A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.Type: ApplicationFiled: February 7, 2007Publication date: January 17, 2008Inventors: Jerry William Janik, Scott Van Remortel
-
Patent number: 7318861Abstract: 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: GrantFiled: December 17, 2003Date of Patent: January 15, 2008Assignee: BASF Catalysts LLCInventors: Frank Bagala, Sr., Curtis J. Zimmermann
-
Patent number: 7241336Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. AI2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.Type: GrantFiled: July 22, 2002Date of Patent: July 10, 2007Assignee: Degussa GmbHInventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
-
Patent number: 7125432Abstract: New methods of producing narrower particle size distribution precipitated silica and/or silicate materials are provided. Such a method permits a significant reduction in manufacturing costs through the utilization of more efficient drying/evaporation components, in essence, in one potentially preferred embodiment, production of such silica and/or silicate materials followed directly by a hydraulic chamber press filtering step combined with vacuum dewatering subsequently leading to the needed resultant particle comminution. The resultant precipitated silicas and/or silicates produced thereby exhibit greater density prior to comminution and thus greater propensity for more uniform milling than previously utilized and prevalent spray/flash drying apparatuses.Type: GrantFiled: July 23, 2004Date of Patent: October 24, 2006Assignee: J.M. Huber CorporationInventor: Yung-Hui Huang
-
Patent number: 7087105Abstract: An air-droppable wildfire retardant composition including Lassenite N pozzolan is a natural siliceous (amorphous) mineral, consisting of the layers of diatoms and volcanic tuffs of Northern California's Cascade Range. The Lassnite pozzolan is mixed with a thickener such a Bentonite clay, a measured volume of water forming a slurry-type mixture capable of suspending the particles of pozzolan in a mixture having a viscosity sufficient to avoid solids separation. The inventive fire retardant contains substantially three innocuous ingredients which have no harmful effects to the atmosphere, plant, or animal life.Type: GrantFiled: June 16, 2005Date of Patent: August 8, 2006Inventors: Harry H. Chappell, Darius Chung, Robert R. Swinney
-
Patent number: 7048788Abstract: A ship bottom paint additive to prevent or reduce marine life attachment to the bottoms of ships, and ship bottom paint comprises a mixture of coal ash and diatom earth or beer yeast diatom earth wherein the coal ash is preferably fly ash and the diatom earth or beer yeast diatom earth is preferably a dry powder. The additive is a mixture may have a weight ratio within the range of about 3:1 to 7:1, and may be comprised of about 2.25–10% by weight coal ash and about 0.375–5% by weight diatom earth or beer yeast diatom earth.Type: GrantFiled: August 5, 2004Date of Patent: May 23, 2006Inventors: Shunichi Yamazaki, Minoru Okuda
-
Patent number: 7037476Abstract: A new process is described for the preparation of free flowing hydrated amorphous silica from kimberlite tailing—a waste in diamond mining. The process comprises treating of kimberlite with acid, further reacting it with alkali solution to obtain soluble metal silicate solution, which is subsequently neutralized with mineral acid to polymerize silica as insoluble precipitates. The products is useful in rubber, paints as abrasive etc.Type: GrantFiled: December 27, 2004Date of Patent: May 2, 2006Assignees: Council of Scientific and Industrial Research, National Mineral Development Corporation LimitedInventors: Raksh Vir Jasra, Haresh Mahipatlal Mody, Hari Chand Bajaj, Rajesh Shantilal Somani, Jatin Rameshchandra Chunawala, Hemal Ranpara, Dipti Barochiya, Devendra Ghelani, Suresh Chandra, Maharaj Kishen Dhar, Keshav Rao, Kamlesh Kumar
-
Patent number: 7018596Abstract: Accordingly, the invention provides: (1) mesoporous silica characterized by having an average pore diameter in the mesopore region of from 1.5 to 10 nm, a nitrogen adsorption specific surface area determined by the BET method of from 500 to 1400 m2/g, and a monolayer adsorption of water at 25° C. of 1.7 H2O molecules/nm2 specific surface area or more; (2) a process for synthesizing the mesoporous silica characterized by mixing and reacting active silica with a neutral template and removing the neutral template from the thus formed complex; (3) ink absorbents characterized by containing mesoporous silica; (4) ink absorbent slurries composed of the above-described ink absorbent and a solvent; and (5) recording sheets characterized by containing the above-described ink absorbent.Type: GrantFiled: November 19, 1998Date of Patent: March 28, 2006Assignee: Asahi Kasei Kabushiki KaishaInventors: Seiji Satou, Tadashi Shimizu
-
Patent number: 6921432Abstract: A number of stable mixtures are disclosed containing specific combinations and levels of extender pigments and thickeners. These stable mixtures may be employed, inter alia, as a mixture in a method of making paints using prepaints or as a conventional component in a coating, such as a paint, or other end-use where opacifying pigments are employed.Type: GrantFiled: August 8, 2002Date of Patent: July 26, 2005Assignee: Rohm & Haas CompanyInventors: Edwin Hugh Nungesser, Jerry William Washel, John Michael Friel
-
Patent number: 6918954Abstract: The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2-12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mineral material, such as a mineral wool or fiber product containing silica and alumina in a molar ratio of 2-12 in an aqueous solution, nucleating and stabilizing the so obtained solution, and optionally adjusting the dry matter content of the dispersion so obtained. The said dispersion can also be made to gel. The invention is also directed to the use of the dispersion as a binder.Type: GrantFiled: June 19, 2001Date of Patent: July 19, 2005Assignee: Paroc Group Oy ABInventors: Michael Perander, Jean Le Bell
-
Patent number: 6916368Abstract: A curable film-forming composition is provided that on curing produces a coating, comprising in a medium (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a polymer containing a plurality of functional groups reactive with the crosslinking agent; and (iii) 20 to 85 percent by volume based on the total volume of the film-forming composition of particles having a mean particle size less than 100 nm. The particles further have an index of refraction sufficiently similar to that of the polymer of (ii) to minimize haze, and have an affinity for the medium sufficient to keep the particles suspended therein. The affinity of the particles for the medium is greater than the affinity of the particles for each other, thereby preventing agglomeration of the particles within the medium.Type: GrantFiled: February 6, 2003Date of Patent: July 12, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Noel R. Vanier, Calum H. Munro, James A. Claar, Robert E. Jennings
-
Patent number: 6897171Abstract: The present invention refers to glass-ceramics consisting of the mixtures (I): ZrO2—SiO2—MeIIO, or (II) SiO2—MeIIIO2—MeIIO, wherein: MeII is chosen in the group consisting of: Ca, Ba, Mg, Zn or mixture thereof; MeIII is chosen in the group consisting of Al, B or mixtures thereof; each of the above said constituents being present in determined quantities; the invention refers also to a process for preparing the glass-ceramics above defined; porcelain stonewares and glazes containing them and their use for preparing ceramic items.Type: GrantFiled: June 12, 2003Date of Patent: May 24, 2005Assignee: Colorobbia Italia S.p.A.Inventors: Marco Bitossi, Giovanni Baldi, Davide Settembre Blundo, Enrico Generali
-
Patent number: 6866712Abstract: A fibrous reinforcing material (1) is envisaged which is produced from glass filaments (2), advantageously consisting of fragments of glass yarns (3) or of chopped yarns, having a mean diameter of greater than five micrometers and a mean length of greater than six millimeters. The process comprises a selection step (4a, 4b) during which the glass yarns (3) consisting of filaments having a diameter greater than or equal to five micrometers and less than or equal to twenty-four micrometers are chosen, optionally a step (5) of mixing the selected yarns, and a milling step (6) during which the mixed yarns are chopped into filaments (2) having a length of greater than or equal to six millimeters. Advantageously, the fibrous material is in the form of flakes.Type: GrantFiled: April 12, 2000Date of Patent: March 15, 2005Assignee: Saint-Gobain Vetrotex France S.A.Inventors: Francesco Rossi, Antonio Ferrante