Clay Containing (e.g., Porcelain, Earthenware, Etc.) Patents (Class 501/141)
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Patent number: 7658990Abstract: 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: GrantFiled: November 4, 2005Date of Patent: February 9, 2010Assignee: LG Chem, Ltd.Inventor: Sang-Ho Shin
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Publication number: 20090325781Abstract: 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: ApplicationFiled: April 3, 2007Publication date: December 31, 2009Applicant: CERAGREEN CO., LTD.Inventor: Young Ho Jeong
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Patent number: 7628850Abstract: 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: GrantFiled: October 25, 2006Date of Patent: December 8, 2009Assignee: Whitemud Resources Inc.Inventors: Robin Phinney, Kelly Graham, Kevin Graham, Burl Aycock
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Publication number: 20090286669Abstract: 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: ApplicationFiled: July 17, 2009Publication date: November 19, 2009Applicant: Caroma Insdustries LimitedInventor: Emile SALEH
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Publication number: 20090274860Abstract: 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: ApplicationFiled: December 11, 2005Publication date: November 5, 2009Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLGOYInventors: Takeo Ebina, Fujio Mizukami, Ryo Ishii, Kiyoshi Kobayashi
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Patent number: 7611575Abstract: 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: GrantFiled: December 1, 2003Date of Patent: November 3, 2009Assignee: Imerys Pigments, Inc.Inventors: Edward J. Sare, Tommy L. Adkins, Stephen C. Raper
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Patent number: 7605110Abstract: 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: GrantFiled: April 5, 2007Date of Patent: October 20, 2009Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Keiichi Yamada, Kazuhiko Koike, Katsumi Yoshida, Hideki Kita, Naoki Kondo, Hideki Hyuga
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Publication number: 20090239734Abstract: 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: ApplicationFiled: March 11, 2009Publication date: September 24, 2009Applicant: NGK Insulators, Ltd.Inventors: Satoshi Yamazaki, Yuji Katsuda, Atsushi Watanabe, Yohei Ono, Takehiko Watanabe
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Publication number: 20090214819Abstract: 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: ApplicationFiled: April 1, 2009Publication date: August 27, 2009Applicant: NGK Insulators, Ltd.Inventor: Takahiro TOMITA
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Patent number: 7579084Abstract: 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: GrantFiled: December 28, 2005Date of Patent: August 25, 2009Assignee: Caroma Industries LimitedInventor: Emile Saleh
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Publication number: 20090155342Abstract: 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: ApplicationFiled: February 15, 2006Publication date: June 18, 2009Applicant: Virginia Commonwealth UniversityInventors: Robert F. Diegelmann, Kevin R. Ward, Marcus E. Carr, Gary Lee Bowlin
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Publication number: 20090143219Abstract: 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: ApplicationFiled: November 30, 2007Publication date: June 4, 2009Inventor: Kevin Ying Chou
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Publication number: 20090136740Abstract: 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: ApplicationFiled: November 28, 2007Publication date: May 28, 2009Inventors: George H. Reynolds, Christopher W. Strock
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Patent number: 7534736Abstract: 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: GrantFiled: May 25, 2005Date of Patent: May 19, 2009Assignee: Imerys Kaolin, Inc.Inventors: Edward Sare, James Stacey Johnson
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Publication number: 20090062154Abstract: 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: ApplicationFiled: August 28, 2007Publication date: March 5, 2009Inventors: Mark Windebank, Jarrod Hart, Jean Andre Alary
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Publication number: 20090048089Abstract: 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: ApplicationFiled: September 9, 2008Publication date: February 19, 2009Applicants: NGK Insulators, Ltd., Soshin Electric Co., Ltd.Inventors: Takeshi Oobuchi, Tadashi Otagiri, Yoshinori Ide
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Patent number: 7485186Abstract: 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: GrantFiled: June 17, 2003Date of Patent: February 3, 2009Assignee: American Clay Enterprises, LLCInventor: Armin Croft Elsaesser
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Publication number: 20080300129Abstract: 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: ApplicationFiled: August 4, 2008Publication date: December 4, 2008Applicant: Caroma Insdustries LimitedInventor: Emile Saleh
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Patent number: 7459411Abstract: 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: GrantFiled: October 14, 2005Date of Patent: December 2, 2008Assignee: B.B.B.-Development and Production of Building Products Ltd.Inventor: David Babliki
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Patent number: 7442663Abstract: 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: GrantFiled: August 9, 2005Date of Patent: October 28, 2008Assignee: NGK Insulators, Ltd.Inventor: Takahiro Tomita
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Publication number: 20080255291Abstract: 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: ApplicationFiled: August 28, 2006Publication date: October 16, 2008Applicant: Imerys Kaolin, Inc.Inventors: Edward J. Sare, Tommy L. Adkins
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Publication number: 20080233821Abstract: 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: ApplicationFiled: August 17, 2006Publication date: September 25, 2008Applicant: Lenzing AktiengesellschaftInventors: Harmut Ruf, Heinrich Firgo, Gert Kroner
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Publication number: 20080182743Abstract: 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: ApplicationFiled: May 1, 2006Publication date: July 31, 2008Applicant: Imerys Pigments, Inc.Inventors: Ismail Yildirum, Robert J. Pruett
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Patent number: 7402543Abstract: 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: GrantFiled: December 29, 2004Date of Patent: July 22, 2008Inventor: Ruth Frances Greenberg
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Publication number: 20080161222Abstract: 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: ApplicationFiled: January 28, 2005Publication date: July 3, 2008Applicant: GIOVANNI BOZZETTO S.P.A.Inventors: Massimo Paladini, Francesco Spini, Alessandro Scalvedi, Maurizio Bellotto, Jean Claude Valle
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Publication number: 20080138568Abstract: 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: ApplicationFiled: December 6, 2007Publication date: June 12, 2008Applicant: NGK INSULATORS, LTD.Inventors: Takahiro TOMITA, Kenji MORIMOTO, Katsuhiro INOUE, Masaaki KAWAI, Suguru KODAMA
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Publication number: 20080125524Abstract: 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: ApplicationFiled: June 9, 2006Publication date: May 29, 2008Applicant: ADEKA CORPORATIONInventors: Tatsuya Ishida, Toshiyuki Takahashi
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Publication number: 20080108495Abstract: 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: ApplicationFiled: April 7, 2005Publication date: May 8, 2008Applicant: New Earth Pie Ltd.Inventors: Tsen Meng Tang, Hsing Loong Tan, Danmei Wang
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Patent number: 7354879Abstract: 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: GrantFiled: January 5, 2006Date of Patent: April 8, 2008Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventor: John Stewart Reid
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Patent number: 7323429Abstract: 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: GrantFiled: December 5, 2001Date of Patent: January 29, 2008Assignee: Dow Corning LimitedInventor: Hagen Demes
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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
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Patent number: 7316854Abstract: 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: GrantFiled: March 12, 2004Date of Patent: January 8, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takuichi Arai
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Patent number: 7214264Abstract: 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: GrantFiled: April 19, 2005Date of Patent: May 8, 2007Assignee: Imerys Pigments, Inc.Inventors: J. Philip E. Jones, Robert J. Pruett, Jun Yuan, Michael J. Garska, David O. Cummings, Bomi M. Bilimoria, Robin Wesley
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Patent number: 7182891Abstract: This invention concerns a non-basic refractory batch as well as its use.Type: GrantFiled: November 12, 2003Date of Patent: February 27, 2007Assignee: Refractory Intellectual Property GmbH & Co. KGInventors: Malgorzata Bugajski, Karl-Heinz Dott, Alfons Lueftenegger
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Patent number: 7148169Abstract: 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: GrantFiled: October 7, 2003Date of Patent: December 12, 2006Inventors: Edward J. Sare, John D. Sagurton, Tommy L. Adkins
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Patent number: 7105466Abstract: 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: GrantFiled: July 25, 2005Date of Patent: September 12, 2006Assignee: H.C. Spinks Clay Company, Inc.Inventor: Ronald J. Thomas
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Patent number: 7101821Abstract: 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: GrantFiled: May 27, 2003Date of Patent: September 5, 2006Assignee: Dow Corning CorporationInventors: Hagen Demes, Helmut Fackler
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Patent number: 7091148Abstract: 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: GrantFiled: July 26, 2004Date of Patent: August 15, 2006Assignee: H.C. Spinks Clay Company, Inc.Inventor: Ronald J Thomas
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Patent number: 7067445Abstract: 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: GrantFiled: August 23, 2004Date of Patent: June 27, 2006Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventors: Roy A. Webber, Danny L. Mickelson, Stephen K. Schubarth, Edwyn M. Snyder, Andrew T. Sheppard
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Patent number: 6998452Abstract: 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: GrantFiled: January 14, 2005Date of Patent: February 14, 2006Assignee: The Goodyear Tire & Rubber CompanyInventor: Dane Kenton Parker
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Patent number: 6936557Abstract: 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: GrantFiled: May 28, 2002Date of Patent: August 30, 2005Inventor: Yong-Jin Park
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Patent number: 6919289Abstract: Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity.Type: GrantFiled: October 5, 2004Date of Patent: July 19, 2005Assignee: Carlisle FoodService Products, IncorporatedInventor: Gerard E. Parker
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Patent number: 6905996Abstract: 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: GrantFiled: December 5, 2001Date of Patent: June 14, 2005Assignee: Dow Corning LimitedInventors: Helmut Fackler, Hagen Demes
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Patent number: 6905693Abstract: 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: GrantFiled: June 3, 2003Date of Patent: June 14, 2005Assignee: PABU Services, Inc.Inventors: Leonard J. Chyall, Harry A. Hodgen, Frederick J. Vyverberg, Robert W. Chapman
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Patent number: 6872677Abstract: 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: GrantFiled: October 2, 2002Date of Patent: March 29, 2005Assignee: Oil Dri CorporationInventors: Verlyn R. Roskam, Marc A. Herpfer, Allan S. Lee
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Patent number: 6846768Abstract: Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity.Type: GrantFiled: March 26, 2003Date of Patent: January 25, 2005Assignee: Carlisle FoodService Products, IncorporatedInventor: Gerard E. Parker
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Patent number: 6824877Abstract: 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: GrantFiled: August 29, 2002Date of Patent: November 30, 2004Inventor: John Howard Groth
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Patent number: 6815389Abstract: 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: GrantFiled: March 15, 2002Date of Patent: November 9, 2004Assignee: Akzo Nobel NVInventors: Dennis Stamires, Michael F. Brady, William Jones, Fathi Kooli
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Patent number: 6811602Abstract: 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: GrantFiled: March 27, 2002Date of Patent: November 2, 2004Assignee: Asahi Glass Company, LimitedInventors: Yoshihisa Beppu, Shinji Kondoh
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Patent number: 6800578Abstract: 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: GrantFiled: October 15, 2002Date of Patent: October 5, 2004Assignee: Akzo Nobel NVInventors: Dennis Stamires, Paul O'Connor, William Jones, Michael Brady