Clay Containing (e.g., Porcelain, Earthenware, Etc.) Patents (Class 501/141)
  • Patent number: 7658990
    Abstract: A super lightweight ceramic panel for a non-bearing wall utilizing an expandable clay mineral and a process for preparing the same are provided. The super lightweight ceramic panel is comprised of a clay composition containing 90 to 98% by weight of an expandable clay mineral, 1.5 to 5% by weight of a flux (glass), and 0.5 to 5% by weight of silicon carbide, and is prepared by mixing and pressing the clay composition, followed by firing at a temperature of 1100 to 1200° C. The super lightweight ceramic panel in accordance with the present invention is a material having a light weight and exhibiting improvement in physical properties such as water resistance, flame retardancy, heat insulation and rigidity, via formation of closed pores inside the ceramic material.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: February 9, 2010
    Assignee: LG Chem, Ltd.
    Inventor: Sang-Ho Shin
  • Publication number: 20090325781
    Abstract: The present invention relates to a method for producing an artificial lightweight aggregate containing bottom ash, and more particularly to a method for producing an artificial lightweight aggregate containing bottom ash, the method comprises the steps of: (a) mixing 100 parts by weight of clay and 10-100 parts by weight of bottom ash to obtain a mixture; (b) extrusion-molding the mixture by using an extruder and cutting the extrusion-molded mixture to form a molded article; (c) drying the molded article by using a rotary drier; and (d) Sintering the dried article at 1050-1150° C. for 15-45 minutes to produce the artificial lightweight aggregate.
    Type: Application
    Filed: April 3, 2007
    Publication date: December 31, 2009
    Applicant: CERAGREEN CO., LTD.
    Inventor: Young Ho Jeong
  • Patent number: 7628850
    Abstract: A process for producing high grade metakaolin directly from kaolinzed sands ore body. In one embodiment, a source of kaolin ore is reduced in the size to a size distribution of between ?2 inches and 10 mesh. The ore is then dried in a dryer at a temperature of not greater than 180° C. to a moisture content of not greater than 0.5% by weight to liberate kaolin and calcined at a temperature of not greater than 875° C. to produce metakaolin.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: December 8, 2009
    Assignee: Whitemud Resources Inc.
    Inventors: Robin Phinney, Kelly Graham, Kevin Graham, Burl Aycock
  • Publication number: 20090286669
    Abstract: The present invention relates to a method of producing a ceramic material comprising the steps of: a) mixing a first clay composition comprising silica and a silicate mineral with a second clay composition; and b) firing the mixed clay composition from step a) to form a ceramic product. The present invention also relates to an engobe clay composition, sanitary ware and methods of productions thereof.
    Type: Application
    Filed: July 17, 2009
    Publication date: November 19, 2009
    Applicant: Caroma Insdustries Limited
    Inventor: Emile SALEH
  • Publication number: 20090274860
    Abstract: The present invention provides a clay film and a member thereof, having low moisture permeability and gas permeability, having mechanical strength enabling use as a self-supporting film, having high flexibility and high heat resistance, being an electrical insulator and having low thermal conductivity; a clay film comprising clay alone, clay and a small amount of a reinforcing material, or clay, a small amount of an additive and a small amount of a reinforcing material and subjected to surface treatment; a clay film comprising clay and a small amount of a reinforcing material, or clay, a small amount of an additive and a small amount of a fibrous reinforcing material, and having gas impermeability; a multilayer film comprising a fabric and clay and having a composite multilayer structure comprising a clay layer and a fabric; and, an adhesive clay film having clay for a main component thereof and a single layer or multilayer structure in which an adhesive layer is preset on the clay film.
    Type: Application
    Filed: December 11, 2005
    Publication date: November 5, 2009
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLGOY
    Inventors: Takeo Ebina, Fujio Mizukami, Ryo Ishii, Kiyoshi Kobayashi
  • Patent number: 7611575
    Abstract: The present invention relates to coarse calcined kaolin slurries having a high solids content. The invention also relates to methods of making such slurries. The resulting slurries can have a solids content of at least about 58% by weight wherein at least about 40% by weight of the calcined kaolin particles has a particle size of at least about 1 ?m. The slurries can be stabilized where the solids show little settling from suspension. The slurries have many uses, including fillers or extenders in paint and coating compositions for paper or paper board. More generally, the inventive products may be used wherever calcined kaolins are used. The present invention also related to coarse calcined kaolin slurries having a multimodal particle size distribution and a high solids content.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: November 3, 2009
    Assignee: Imerys Pigments, Inc.
    Inventors: Edward J. Sare, Tommy L. Adkins, Stephen C. Raper
  • Patent number: 7605110
    Abstract: A ceramic body, a ceramic catalyst body, a ceramic catalyst body and related manufacturing methods are disclosed wherein a cordierite porous base material has a surface, formed with acicular particles made of a component different from that of cordierite porous base material, which has an increased specific surface area with high resistance to a sintering effect. The ceramic body is manufactured by preparing a slurry containing an acicular particle source material, preparing a porous base material, applying the slurry onto a surface of the porous base material and firing the porous base material, whose surface is coated with the slurry, to cause acicular particles to develop on the surface of the porous base material. A part of or a whole of surfaces of the acicular particles is coated with a constituent element different from that of the acicular particles.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 20, 2009
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Keiichi Yamada, Kazuhiko Koike, Katsumi Yoshida, Hideki Kita, Naoki Kondo, Hideki Hyuga
  • Publication number: 20090239734
    Abstract: A method of producing cordierite ceramic where the degree of stacking faults and the particle diameter of kaolinite used as a component of a cordierite-forming raw material are appropriately adjusted so that microcracks having an average width of 0.3 ?m or more are introduced into the resulting cordierite ceramic to produce a high-quality cordierite ceramic that includes a cordierite crystal oriented in a specific direction and has a porosity of 25% or more and a coefficient of thermal expansion of 0.30×10?6/° C. or less.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 24, 2009
    Applicant: NGK Insulators, Ltd.
    Inventors: Satoshi Yamazaki, Yuji Katsuda, Atsushi Watanabe, Yohei Ono, Takehiko Watanabe
  • Publication number: 20090214819
    Abstract: An oxide-ceramic forming clay comprising an oxide-ceramic forming material, a layered double hydroxide, a pore-forming agent, and water, wherein the amount of the pore-forming agent is between 3 and 50 parts by mass by superaddition to 100 parts by mass of a sum of the oxide-ceramic forming material and the layered double hydroxide and a sum of the pore-forming agent and an organic binder is between 5 and 55 parts by mass also by superaddition which has environment-friendly characteristics in a forming firing step, and usage thereof.
    Type: Application
    Filed: April 1, 2009
    Publication date: August 27, 2009
    Applicant: NGK Insulators, Ltd.
    Inventor: Takahiro TOMITA
  • Patent number: 7579084
    Abstract: The present invention relates to a method of producing a ceramic material comprising the steps of; a) mixing a first clay composition silica and a silicate mineral with a second clay composition; and b) firing the mixed clay composition from step a)to form a ceramic product. The present invention also relates to an engobe clay composition, sanitary ware and methods of productions thereof.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: August 25, 2009
    Assignee: Caroma Industries Limited
    Inventor: Emile Saleh
  • Publication number: 20090155342
    Abstract: Compositions comprising clay minerals and methods for their use in promoting hemostasis are provided. The compositions comprise clay minerals such as bentonite, and facilitate blood clotting when applied to a hemorrhaging wound. Electrospun or electrosprayed materials (e.g. bandages, micron beads, etc.) which include clay minerals, and methods for the treatment of acute hemorrhage, are also provided.
    Type: Application
    Filed: February 15, 2006
    Publication date: June 18, 2009
    Applicant: Virginia Commonwealth University
    Inventors: Robert F. Diegelmann, Kevin R. Ward, Marcus E. Carr, Gary Lee Bowlin
  • Publication number: 20090143219
    Abstract: A mixture for making a ceramic article includes a ceramic forming component, a liquid vehicle, a cellulosic binder, and a stabilizer comprising an acetate salt. The disclosure also provides a method of making the ceramic article including extruding the mixture to form a ceramic green body, drying the ceramic green body to remove at least a portion of the liquid vehicle, and optionally firing to form the ceramic article. The ceramic green body possesses excellent strength and excellent skin properties without increasing the organic load or the addition of hydrated clays.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventor: Kevin Ying Chou
  • Publication number: 20090136740
    Abstract: A composite article includes a substrate and a layer attached to the substrate. The layer includes a metal phase, a first ceramic phase, and a second ceramic phase.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 28, 2009
    Inventors: George H. Reynolds, Christopher W. Strock
  • Patent number: 7534736
    Abstract: Disclosed herein is ultra-low residue, high solids, wet “cake” kaolin and ultra-low residue, high solids, wet “cake” calcined kaolin products, produced by use of wet screening/non-drying product isolation, which are useful in the manufacture of top size-sensitive applications.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: May 19, 2009
    Assignee: Imerys Kaolin, Inc.
    Inventors: Edward Sare, James Stacey Johnson
  • Publication number: 20090062154
    Abstract: Spherical and rod-shaped proppants and anti-flowback agents made from sillimanite minerals possess high strength and high conductivity. The sillimanite minerals may be selected from the group consisting of kyanite, sillimanite, and andalusite and may be used alone or in combination with other materials, such as bauxite, kaolin, meta-kaolin, pure or technical grade alumina (about 98%-99.9% alumina by weight), alumina-containing slag, zirconia, silica, iron, alkali elements (such as calcium, magnesium, and sodium), and virtually any other mineral containing alumina. The starting material may optionally be milled to achieve better compacity and crush resistance in the final proppant or anti-flowback agent. A fracturing fluid may comprise the rods or spheres alone, or in combination with each other or other proppants or anti-flowback agents of different shapes.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Inventors: Mark Windebank, Jarrod Hart, Jean Andre Alary
  • Publication number: 20090048089
    Abstract: 0.5 to 30 parts by weight of a hexagonal celsian powder is added to 100 parts by weight of a ceramic raw material powder to give a mixture. The mixture is sintered to give a ceramic porcelain so as to precipitate monoclinic celsian in the ceramic porcelain.
    Type: Application
    Filed: September 9, 2008
    Publication date: February 19, 2009
    Applicants: NGK Insulators, Ltd., Soshin Electric Co., Ltd.
    Inventors: Takeshi Oobuchi, Tadashi Otagiri, Yoshinori Ide
  • Patent number: 7485186
    Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: February 3, 2009
    Assignee: American Clay Enterprises, LLC
    Inventor: Armin Croft Elsaesser
  • Publication number: 20080300129
    Abstract: The present invention relates to a method of producing a ceramic material comprising the steps of: a) mixing a first clay composition comprising silica and a silicate mineral with a second clay composition; and b) firing the mixed clay composition from step a) to form a ceramic product. The present invention also relates to an engobe clay composition, sanitary ware and methods of productions thereof.
    Type: Application
    Filed: August 4, 2008
    Publication date: December 4, 2008
    Applicant: Caroma Insdustries Limited
    Inventor: Emile Saleh
  • Patent number: 7459411
    Abstract: A ceramic building element made from a mixture comprising 20% to 80% clay, 20% to 80% fly ash, 0.5% to 5.0% of oily organic material, and 5% to 15% water. The oily organic material may be selected from the group consisting of sediment and silt, the sediment and silt being further selected from at least one site including a river, a lake, a seabed and swamp land.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: December 2, 2008
    Assignee: B.B.B.-Development and Production of Building Products Ltd.
    Inventor: David Babliki
  • Patent number: 7442663
    Abstract: There is disclosed a ceramic clay obtained by kneading a forming material containing a ceramic forming material, wherein the forming material contains layered double hydroxide, in addition to the ceramic forming material, at a ratio of 0.5 to 50% by mass with respect to a total with the ceramic forming material, and hardness measured by an NGK clay hardness meter is set to 4 to 18 mm. A high-strength honeycomb structure can be obtained capable of preventing or inhibiting pollution and global warming when used in manufacturing a ceramic structure, and having few defects such as cracks.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: October 28, 2008
    Assignee: NGK Insulators, Ltd.
    Inventor: Takahiro Tomita
  • Publication number: 20080255291
    Abstract: Disclosed herein are compositions comprising novel calcined kaolins having a large particle size and low levels of alkali and alkali earth metal oxides. Methods of making the disclosed calcined kaolin by calcining hydrous kaolin are described. Applications using the disclosed compositions in preparing catalyst substrates, paints, coatings, sealants, cementitious products, ceramics, rubbers, polymers and other compositions are also described.
    Type: Application
    Filed: August 28, 2006
    Publication date: October 16, 2008
    Applicant: Imerys Kaolin, Inc.
    Inventors: Edward J. Sare, Tommy L. Adkins
  • Publication number: 20080233821
    Abstract: The present invention relates to a cellulosic molded body containing a cellulose/clay nanocomposite, wherein the clay component of said nanocomposite comprises a material selected from the group consisting of unmodified hectorite clays and hydrophilically modified hectorite clays.
    Type: Application
    Filed: August 17, 2006
    Publication date: September 25, 2008
    Applicant: Lenzing Aktiengesellschaft
    Inventors: Harmut Ruf, Heinrich Firgo, Gert Kroner
  • Publication number: 20080182743
    Abstract: Disclosed herein is a method of heat-treating particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with an additive/liquid fuel mixture comprising at least one additive dispersed in liquid fuel. The method further comprises heating the particulate feed to heat treat, e.g., calcine, the particulate feed and burn the liquid fuel to form a heat-treated product. The liquid fuel coating can act as a secondary, indirect heat source for heat treating.
    Type: Application
    Filed: May 1, 2006
    Publication date: July 31, 2008
    Applicant: Imerys Pigments, Inc.
    Inventors: Ismail Yildirum, Robert J. Pruett
  • Patent number: 7402543
    Abstract: The present invention relates to a decorative refractory tile and it's method of use. This decorative tile utilizes a specially formulated clay body that undergoes dehydration and vitrification by firing in a specific manner with respect to temperature, time and rate of temperature increase. This thin, refractory tile has a high thermal conductivity, high structural strength able to maintain a minimal of cracking, distortion and spalling under rapid temperature changes and possesses a high resistance to erosion from ash-laden gases encountered in a conventional fireplace. This tile can be colored with heat resistant glazes, stains and oxides and sized or shaped within certain dimensional ranges, so as allow it to present patterns, designs or even pictures on the sides, floor and back of the firebox. When this tile is crafted by one with an artistic flair, and affixed to the walls, floor or sides of a firebox, aesthetically favorable fireplaces can be created.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: July 22, 2008
    Inventor: Ruth Frances Greenberg
  • Publication number: 20080161222
    Abstract: Use of polyaminomethylenephosphonates as dispersing and/or wetting and/or stabilizing agents in formulations for cements, detergents, ceramic materials, dyes, synthetic resins, and rubbers, drilling fluids, reverse osmosis, as a substitution of or in combination with commercial products suitable for the purpose, characterized in that said polyaminomethylenephosphonates have the formula. (I) wherein n is integer higher than 2, M is hydrogen or a cation selected from those of alkaline metals and the ammonium ion, and the residues R, the same or different, are independently selected from 1. —CH2PO3M2, 2. —CH2R1 with R1 selected from —CH2OH, —CHOHCH3, —CHOHCH2CL, —CHOHCH2OH, 3. —(CH2)Mso3M, m being equal to 3 or 4, 4. —CH2CH2R2 with R2 equal to —CONH2, CONH2, —CHO, —COOR3, —COOX, CN, R3 being either —CH3 or —C2H5 and X a cation selected from the meanings of M and from the fact that said polyaminomethylenephosphonates are present in the formulation of interest in a weight quantity of over 0.
    Type: Application
    Filed: January 28, 2005
    Publication date: July 3, 2008
    Applicant: GIOVANNI BOZZETTO S.P.A.
    Inventors: Massimo Paladini, Francesco Spini, Alessandro Scalvedi, Maurizio Bellotto, Jean Claude Valle
  • Publication number: 20080138568
    Abstract: There is provided a bonding material composition for obtaining a joined body by unitarily joining two or more members to be joined by means of a bonding material layer, wherein the bonding material composition contains flat particles, non-flat particles, smectite-based clay, and an inorganic adhesive as main components. The bonding material composition costs little, can relax thermal stress generated in the joined body without using fibers which may do harm to a human body, and can reduce defects such as a crack and a void upon drying or a thermal treatment.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 12, 2008
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takahiro TOMITA, Kenji MORIMOTO, Katsuhiro INOUE, Masaaki KAWAI, Suguru KODAMA
  • Publication number: 20080125524
    Abstract: An optical filter comprising at least one dye compound (i), at least one layered clay mineral (ii), and thermoplastic substance (iii) if needed. The optical filter of the present invention is excellent in light resistance and moist heat resistance and suitable for improving the image quality and preventing glare due to external light in image display devices.
    Type: Application
    Filed: June 9, 2006
    Publication date: May 29, 2008
    Applicant: ADEKA CORPORATION
    Inventors: Tatsuya Ishida, Toshiyuki Takahashi
  • Publication number: 20080108495
    Abstract: A method is provided for heavy metal stabilisation comprising: mixing waste, comprising heavy metals, with molecular sieve with the proviso that carbon-based molecular sieve is excluded, and clay; and vitrifying the mixture. In particular, a method comprising the steps of: preparing a pre-stabilised mixture by mixing waste, comprising heavy metals, with the molecular sieve, and optionally other chemicals; mixing the pre-stabilised mixture with clay; and vitrifying the obtained mixture is provided. It also provides a product comprising heavy metals that have been stabilised into the structure of the clay-based ceramic matrix, wherein the product is a vitrified product of a mixture of at least waste, comprising heavy metals, molecular sieve (with the proviso that carbon-based molecular sieve is excluded) and clay.
    Type: Application
    Filed: April 7, 2005
    Publication date: May 8, 2008
    Applicant: New Earth Pie Ltd.
    Inventors: Tsen Meng Tang, Hsing Loong Tan, Danmei Wang
  • Patent number: 7354879
    Abstract: A chemical processing apparatus that utilizes a ceramic media sintered at a lower temperature than the apparatus' maximum exposure temperature is described. The media's physical and chemical properties may contribute to its thermal stability when exposed to temperatures that exceed the media's sintering temperature by at least 50° C.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: April 8, 2008
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: John Stewart Reid
  • Patent number: 7323429
    Abstract: A method for pacifying the spent bed material resulting from the synthesis of organohalosilanes and halosilanes by mixing clay with spent bed material. Clay compositions containing at least 10 weight % of clay and spent bed material, as well as ceramic compositions containing spent bed material, are also provided.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: January 29, 2008
    Assignee: Dow Corning Limited
    Inventor: Hagen Demes
  • Publication number: 20080015104
    Abstract: 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: Application
    Filed: February 7, 2007
    Publication date: January 17, 2008
    Inventors: Jerry William Janik, Scott Van Remortel
  • Patent number: 7316854
    Abstract: A proton conducting material and proton conducting membrane which have high proton conductivity, high strength, flexibility (strong against deformation), and high size stability when swollen (water absorbed) are provided. The proton conducting material and the proton conducting membrane are formed by crosslinking the unit structure of a layered clay mineral, wherein a polyvalent metal ion is incorporated between layers of the layered clay mineral.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: January 8, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takuichi Arai
  • 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: 7182891
    Abstract: This invention concerns a non-basic refractory batch as well as its use.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: February 27, 2007
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventors: Malgorzata Bugajski, Karl-Heinz Dott, Alfons Lueftenegger
  • Patent number: 7148169
    Abstract: A method of method of making a formed ceramic body, comprising casting or jiggering a composition comprising a mullite-rich calcined kaolin obtained from a hydrous kaolin. Also provided is a method of modifying/increasing the casting rate of a formed body formulation comprising hydrous kaolin, the method comprising substituting at least 10% of the hydrous kaolin in the formulation with a mullite-rich calcined kaolin. Also provided is a ceramic body filter cake comprising a mullite-rich calcined kaolin, wherein the mullite-rich calcined kaolin is obtained from a hydrous kaolin and a method of modifying/increasing the filtration rate of a ceramic body filter cake comprising hydrous kaolin, the method comprising substituting at least 10% of the hydrous kaolin in the ceramic body filter cake with a mullite-rich partially calcined kaolin.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: December 12, 2006
    Inventors: Edward J. Sare, John D. Sagurton, Tommy L. Adkins
  • Patent number: 7105466
    Abstract: A clay slurry with a solids content of at least about 60 weight percent and a casting rate of at least 60 grams per hour, wherein the slurry contains from about 68 to about 74 weight percent of silica and less than about 0.8 percent of carbon. At least about 9 weight percent of the particles in the slurry are larger than about 44 microns, and at least about 5 weight percent of the particles in said slurry are larger than about 74 microns.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: September 12, 2006
    Assignee: H.C. Spinks Clay Company, Inc.
    Inventor: Ronald J. Thomas
  • Patent number: 7101821
    Abstract: This invention provides a silicon composition comprising at least 15 wt % of hydrolysed silicon compounds and at least 3 wt % of a binder material. The silicon composition is used in the manufacture of ceramics. The hydrolysed silicon compounds can for example be the gel produced by hydrolysing higher boiling point organohalosilanes produced in the manufacture of organohalosilanes or halosilanes by the direct process.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: September 5, 2006
    Assignee: Dow Corning Corporation
    Inventors: Hagen Demes, Helmut Fackler
  • Patent number: 7091148
    Abstract: A clay slurry with a solids content of at least about 60 weight percent and a casting rate of at least 60 grams per hour, wherein the slurry contains from about 68 to about 74 weight percent of silica and less than about 0.8 percent of carbon. At least about 9 weight percent of the particles in the slurry are larger than about 44 microns, and at least about 5 weight percent of the particles in said slurry are larger than about 74 microns.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 15, 2006
    Assignee: H.C. Spinks Clay Company, Inc.
    Inventor: Ronald J Thomas
  • Patent number: 7067445
    Abstract: A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: June 27, 2006
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Roy A. Webber, Danny L. Mickelson, Stephen K. Schubarth, Edwyn M. Snyder, Andrew T. Sheppard
  • Patent number: 6998452
    Abstract: This invention relates to a process for producing a free radical control agent of the structural formula: wherein Z is selected from the group consisting of wherein R1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl; wherein R2 is an alkoxy group of 1 to 8 carbon atoms or a cycloalkoxy group of 5 to 8 carbon atoms; wherein Alk is a divalent hydrocarbon of 1 to 18 carbon atoms; and wherein Y represents a functional group that is capable of activating a vinylic carbon toward free radical addition; said process comprising the steps of (1) reacting a mercaptosilane of the structural formula: Z-Alk-SH with carbon disulfide in the presence of a phase transfer catalyst and an alkali metal hydroxide to produce a trithiocarbonate salt; and (2) reacting the trithiocarbonate salt with a halogen containing compound of the structural formula X-Y to produce the free radical control agent, wherein X represents a halogen atom.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: February 14, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Dane Kenton Parker
  • Patent number: 6936557
    Abstract: A novel multipurpose mineral composition capable of emitting a large quantity of far infrared rays, negative ions and oxygen heat is manufactured by setting up an iron railing, an iron rod and an iron plate on a brazier, placing a tinfoil on the iron plate, and layering yellow soil, kaolin, sericite, and biomineral in sequence on the tinfoil, while inserting the tinfoil between the layers, loading a pulverized elvan in the furnace, pulverizing a mixed stone including 40 wt % of germanium, 15 wt % of tourmaline, 30 wt % of zeolite, and 15 wt % of franklinite, to the particle size under about 44 ?m, and loading the pulverized mixed stone in an internal furnace which is made by winding a copper plate with a tinfoil and placed on the plurality of layers of the furnace, heating the pulverized mixed stone at about 1,000° C. for about seven days into a lump, and repulverizing the lump.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: August 30, 2005
    Inventor: Yong-Jin Park
  • Patent number: 6919289
    Abstract: Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: July 19, 2005
    Assignee: Carlisle FoodService Products, Incorporated
    Inventor: Gerard E. Parker
  • Patent number: 6905996
    Abstract: This invention provides methods for making ceramic articles with improved density, compression strength and efflorescence properties, in which a pre-ceramic article containing direct process residue gel is heated at an elevated temperature.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: June 14, 2005
    Assignee: Dow Corning Limited
    Inventors: Helmut Fackler, Hagen Demes
  • Patent number: 6905693
    Abstract: An intumescent polymer composition includes a matrix polymer, an acid catalyst source, a nitrogen source and an ionic phyllosilicate synergist having substantial cationic exchange capacity.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 14, 2005
    Assignee: PABU Services, Inc.
    Inventors: Leonard J. Chyall, Harry A. Hodgen, Frederick J. Vyverberg, Robert W. Chapman
  • Patent number: 6872677
    Abstract: A brick additive and methods for using the brick additive are disclosed. The additive may include an internal porosity. The internal porosity may display an intra-granular internal porosity in which at least some of the pores are interconnected via an open network of pore spaces. In some embodiments, the additive is capable of maintaining its internal porosity after undergoing thermal modification via calcination, for example. In addition, brick additives of the present invention may display a large surface area.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: March 29, 2005
    Assignee: Oil Dri Corporation
    Inventors: Verlyn R. Roskam, Marc A. Herpfer, Allan S. Lee
  • Patent number: 6846768
    Abstract: Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: January 25, 2005
    Assignee: Carlisle FoodService Products, Incorporated
    Inventor: Gerard E. Parker
  • Patent number: 6824877
    Abstract: A clay composition comprises, in parts by weight on oxide basis, 10-15% Al2O3, 50-85% SiO2, 0-12.5% B2O3 and 10-20% metal oxides of the form RO or R2O.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: November 30, 2004
    Inventor: John Howard Groth
  • Patent number: 6815389
    Abstract: An economical and environment-friendly process for the synthesis of anionic clays with carbonate and/or hydroxide anions as the charge-balancing interlayer species is disclosed. The process involves reacting a slurry comprising an aluminum source and a magnesium source, the aluminum source comprising two types of aluminum-containing compounds, preferably aluminum trihydrate and/or thermally treated calcined aluminum trihydrate. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 9, 2004
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Michael F. Brady, William Jones, Fathi Kooli
  • Patent number: 6811602
    Abstract: A process for preparing a silicate porous product, which comprises a step of forming a clay mineral into a dispersion by means of a dispersant, a step of removing gases dissolved in the dispersion, a step of freezing the dispersion and drying it in its frozen state under reduced pressure, and a step of firing the dried product obtained by the drying.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 2, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshihisa Beppu, Shinji Kondoh
  • Patent number: 6800578
    Abstract: This patent describes economical and environment-friendly processes for the synthesis of anionic clays. It involves reacting a slurry comprising boehmite, which has been peptized with acid with a divalent metal source followed by addition of source of base. The slurry is then hydrothermally aged. There is no necessity to wash or filter the product and it can be spray dried directly to form microspheres, or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, polymeric nanocomposites and other commodity products that contain anionic clays.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 5, 2004
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Paul O'Connor, William Jones, Michael Brady