Composition Related To Metal Foundry Molding Or Metallurgical Furnace Or Process Of Preparing Patents (Class 523/139)
  • Patent number: 10610923
    Abstract: A foundry mix includes a major amount of a foundry aggregate and an effective binding amount of a binder system. The binder system cures in the presence of sulfur dioxide and a free radical initiator. The binder system may include (1) 10 to 70 parts by weight of an epoxy novolac resin; (2) 0.5 to 10 parts by weight of resorcinol; (3) 20 to 70 parts by weight of a monomeric or polymeric acrylate; and (4) an effective amount of a free radical initiator. Notably, (1), (2), (3) and (4) are separate components or mixed with another of said components, provided (4) is not mixed with (3), where said parts by weight are based upon 100 parts of the binder system.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Novis Works, LLC
    Inventors: James T. Schneider, Frances Trenta
  • Patent number: 10125295
    Abstract: The invention provides protein adhesives and methods of making and using such adhesives. One type of protein adhesive described herein contains lignin and ground plant meal or an isolated polypeptide composition obtained from plant biomass. Other types of protein adhesives described herein contain a plant protein composition and either a hydroxyaromatic/aldehyde, urea/aldehyde, or amine/aldehyde component.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 13, 2018
    Assignee: Evertree
    Inventors: Anthony A. Parker, Joseph J. Marcinko
  • Patent number: 10044040
    Abstract: It is an object of the present invention to provide an electrode capable of maintaining superior capacity retention without destruction of an electrode structure, even in the case of using an active material including silicon.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: August 7, 2018
    Assignees: TOKYO UNIVERSITY OF SCIENCE FOUNDATION, WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Shinichi Komaba, Naoaki Yabuuchi, Zhen-Ji Han, Takeo Sasaki, Shota Hashimoto, Kuniaki Okamoto, Tsuneaki Maesawa
  • Patent number: 10017667
    Abstract: Provided is an article, particularly culinary, comprising a cast iron support having two opposite sides. The article comprises a vitreous coating in the form of at least a continuous layer of a sol-gel material comprising a matrix formed from at least a metal polyalkoxylate and at least a reactive or unreactive silicone oil, the layer of sol-gel material being deposited directly on one at least of the sides of said support, and the side provided with a vitreous coating has a surface roughness Ra ranging between 3 and 15 ?m with a peak count per centimeter RPc ranging between 50 and 200. A method for manufacturing such an article is also provided.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: July 10, 2018
    Assignee: SEB S.A.
    Inventors: Pierre Jean Muller, Aurelien Dubanchet, Jean-Luc Perillon
  • Patent number: 9938194
    Abstract: An alumina-based filling sand for sliding nozzle comprising at least 50 wt % of mixed sand including 20 to 90 vol % of alumina sand and 80 to 10 vol % of silica sand, wherein the alumina sand has surface irregularities of 1.3 or less and comprises 50 wt % or more of an Al2O3 component.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 10, 2018
    Assignee: YAMAKAWA SANGYO CO., LTD.
    Inventors: Manabu Kawakami, Yoshikatsu Nishida
  • Patent number: 9868153
    Abstract: This mixed powder for powder metallurgy, the powder having excellent fluidity and minimal graphite powder scattering, can be obtained relatively conveniently by mixing fine graphite having an average grain diameter of 4 ?m or less with an iron based powder. The process is performed without the addition of a binder and while shearing force is applied. It is preferable that the fine graphite have an average grain diameter of 2.4 ?m or less and be wet-milled. A portion of the fine graphite is preferably added in place of at least one constituent selected from the group consisting of carbon black, fullerene, carbon compounds carbonized by baking, and graphite having an average grain diameter of 5 ?m or more.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: January 16, 2018
    Assignee: Kobe Steel, Ltd.
    Inventor: Hironori Suzuki
  • Patent number: 9827754
    Abstract: In an illustrative implementation of this invention, a 3D object comprises substrate layers infiltrated by a hardened material. The 3D object is fabricated by a method comprising the following steps: Position powder on all or part of a substrate layer. Repeat this step for the remaining substrate layers. Transform the powder into a substance that flows and subsequently hardens into the hardened material. The hardened material solidifies in a spatial pattern that infiltrates positive regions in the substrate layers and does not infiltrate negative regions in the substrate layers.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: November 28, 2017
    Assignee: Impossible Objects, LLC
    Inventors: Robert Swartz, Buckley Crist, Joseph Fallon
  • Patent number: 9238264
    Abstract: A description is provided of a mixture which is preparable by allowing the reaction of a premixture of (av), methanesulfonic acid (bv), one or more esters of one or more phosphorous-oxygen acids and (cv) one or more silanes. The invention also concerns the use of said mixtures as additives for the polyisocyanate component of a two-component binding agent system for preparation of a polyurethane resin. The invention further concerns a solution containing polyisocyanate for use as a component of a molding material binding agent system, and the use of a solution containing polyisocyanate as the polyisocyanate component of a two-component binding agent system for preparation of a polyurethane resin and corresponding two-component binding agent systems for preparation of a polyurethane resin.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 19, 2016
    Assignee: HUTTENES-ALBERTUS CHEMISCHE WERKE GMBH
    Inventors: Gérard Ladégourdie, Markus Dörschel, Ursula Wichmann, Amine Serghini Anbari, David Strunk
  • Patent number: 9120272
    Abstract: Certain embodiments disclosed herein relate to a smooth finish composite structure and methods for making the composite structure. In particular, in one embodiment, a method is provided that includes creating a first layer of a composite structure. The creation of the first layer includes positioning the first layer in a mold and curing the first layer. Additional layers of the composite structure are created and bonded to the first layer.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: September 1, 2015
    Assignee: APPLE INC.
    Inventor: Kevin M. Kenney
  • Patent number: 9115258
    Abstract: Preparation of a masterbatch of diene elastomer and silica including preparing at least one silica dispersion in water; bringing into contact and mixing an elastomer latex and the aqueous silica dispersion in the presence of a metal salt having an at least divalent metal element, in order to obtain a coagulum; and recovering the coagulum and drying same in order to obtain the masterbatch. The metal cation molar ration, defined as the number of moles of metal cations of the metal salt per BET unit area of the silica, is between 9.375*10?7 and 1.875*10?5 mol/m2.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: August 25, 2015
    Assignees: COMPAGNIE GENERAL DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE
    Inventors: Benoit De Gaudemaris, Geraldine Laffargue, Julien Berriot
  • Patent number: 9038708
    Abstract: A foundry mixture for making molds used for molding cast metal parts includes foundry sand, a non-aqueous binder, and a cleaning agent that includes calcium oxide. Residual foundry mixture remaining on the cast part after removal from the mold is removed by electrolytic cleaning of the cast part.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: May 26, 2015
    Assignee: Newton Engine Corporation
    Inventors: John E. Hoffman, Jr., Richard A. Hoffman, Sr.
  • Publication number: 20150114588
    Abstract: A curing agent composition for making foundry molds, comprising 2,6-dihydroxybenzoic acid. In a sand composition for making foundry molds, it is preferable to use simultaneously: an acid-hardening resin which contains both a binder composition for making foundry molds which comprises one or more 5-position-substituted furfural compounds selected from the group consisting of 5-hydroxymethylfurfural and 5-acetoxymethylfurfural, and the curing agent composition for making foundry molds which comprises 2,6-dihydroxybenzoic acid. It is preferable that the content of 2,6-dihydroxybenzoic acid in the curing agent composition is 10 to 80 wt %.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 30, 2015
    Applicant: KAO CORPORATION
    Inventors: Takashi Joke, Toshiki Matsuo
  • Patent number: 8866479
    Abstract: Casting compound suitable for casting an electronic module, in particular a large-volume coil such as a gradient coil, which is composed of a support material forming a matrix, one or more fillers made of inorganic microparticles, and at least one filler made of polymer nanoparticles.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: October 21, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Groeppel, Juergen Huber, Gerhard Piecha, Lothar Schoen, Matthias Uebler
  • Publication number: 20140249246
    Abstract: Molding sand containing (i) 100 parts by weight of refractory quartz or olivine matrix and (ii) 1 to 5 parts by weight of organic binder. The organic binder contains a mixture of (a) 40-50% w/w aqueous solution of sodium poly(acrylate) in the amount of 30-70% by weight and (b) 40-50% w/w aqueous solution of dextrin in the amount of 30-70% by weight.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: AKADEMIA GORNICZO-HUTNICZA IM. STANISLAWA STASZICA W KRAKOWIE
    Inventor: AKADEMIA GORNICZO-HUTNICZA IM. STANISLAWA STASZICA W KRAKOWIE
  • Patent number: 8822568
    Abstract: A binder composition for self-curing mold formation, comprising at least one condensate (A) selected from furfuryl alcohol condensate and furfuryl alcohol/formaldehyde condensate, and an acid-curable resin (B), wherein about the condensate(s) (A), the presence ratio by mole of its/their furan rings (a) to the total of its/their methylol groups (b), methylene groups (c) and oxymethylene groups (d), a:(b+c+d), is from 1:1.00 to 1:1.08, and the content by percentage of the at least one condensate (A) is from 0.3 to 8.0% by weight.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 2, 2014
    Assignee: Kao Corporation
    Inventors: Masayuki Kato, Toshiki Matsuo, Tomofumi Kanzawa, Takashi Joke
  • Publication number: 20140242269
    Abstract: The subject matter of the invention relates to coating compositions comprising formic acid esters, an aqueous carrier liquid and pulverulent refractory material, and to the use thereof for casting molds, in particular those produced using water glass as a binder.
    Type: Application
    Filed: October 5, 2012
    Publication date: August 28, 2014
    Inventors: Michael Kloskowski, Peter Wachtarczyk, Carolin Wallenhorst
  • Patent number: 8815976
    Abstract: A system for use in forming polymer compositions, including as a replacement for phenolic based resin systems, for instance, in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a humic substance (as can be provided by lignite), b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b). The system is optionally used as binder system in the presence of a filler, such as, in combination with a foundry aggregate such as sand. A polymer system of this invention can be substantially free of formaldehyde or phenol, and preferably contains little or no aromatic solvents.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 26, 2014
    Assignee: University of Northern Iowa Research Foundation
    Inventor: Gerard R. Thiel
  • Patent number: 8813830
    Abstract: The invention relates to a molding material mixture for production of molded products for the foundry industry, comprising at least one fire-resistant base molding material and a polyurethane-based binder system comprising a polyisocyanate component and a polyol component. According to the invention, the polyurethane-based binder system comprises a portion of a carboxylic acid diester of a branched alkane diol, said portion being at least 3 weight-%, and a portion of aromatic solvent of less than 10 weight-% of the binder system. A preferable carboxylic acid diester is 2,2,4-trimethyl-1,3-pentandiol-diisobutyrate. The molded products produced from the molding material mixture for the foundry industry are characterized by a high strength and a lower generation of fumes and smoke during pouring.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: August 26, 2014
    Assignee: ASK Chemicals GmbH
    Inventors: Christian Priebe, Diether Koch
  • Patent number: 8802749
    Abstract: Described herein, in the preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is mixed with the polymerizable polyol and dispersing agents as additives to improve the suspension quality and binder performance of the lignite-containing part of the binder components.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Amcol International Corporation
    Inventors: Jianbo Di, Joseph M. Fuqua
  • Patent number: 8778495
    Abstract: A phenol-formaldehyde novolac resin having a low concentration of free phenol prepared by distilling residual phenol from a molten novolac resin and replacing at least a portion of the phenol with a solvent having a volatility equal to or less than phenol. Such modified novolac resins are suitable for the production of resin coated molding sands for shell molding and sand cores, as well as for the production of resin coated proppants for use in oil and gas recovery operations.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: July 15, 2014
    Assignee: Gerogia-Pacific Chemicals LLC
    Inventors: Richard A. Rediger, Edward Lucas
  • Patent number: 8729152
    Abstract: A curing agent composition for a water-soluble phenol resin used to produce a mold, which comprises a branched ester compound that is derived from a carboxylic acid having a branched chain, and an alcohol, and has 5 to 13 carbon atoms.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: May 20, 2014
    Assignee: Kao Corporation
    Inventors: Masahiko Kagitani, Hitoshi Funada
  • Publication number: 20130237635
    Abstract: Described herein, in the preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is mixed with the polymerizable polyol and dispersing agents as additives to improve the suspension quality and binder performance of the lignite-containing part of the binder components.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: AMCOL INTERNATIONAL CORPORATION
    Inventors: Jianbo Di, Joseph M. Fuqua
  • Patent number: 8436073
    Abstract: Described herein, in the preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is mixed with the polymerizable polyol and dispersing agents as additives to improve the suspension quality and binder performance of the lignite-containing part of the binder components.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: May 7, 2013
    Assignee: Amcol International
    Inventors: Jianbo Di, Joseph M. Fuqua
  • Patent number: 8426493
    Abstract: Disclosed is a foundry mix containing a sulfate and/or nitrate salt and its use to make foundry shapes by the warm-box, hot-box, no-bake, and cold-box process, the use of these foundry shapes to make metal castings, and the metal castings prepared by the process.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: April 23, 2013
    Assignee: ASK Chemicals L.P.
    Inventors: Ralph E. Showman, Sean B. Harmon
  • Patent number: 8426494
    Abstract: Described herein, in a preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, first mixed with a foundry aggregate and then the humic-aggregate mixture is combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is added as a solid to the foundry aggregate, and improves the binder performance of the lignite-containing part of the binder components.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: April 23, 2013
    Assignee: Amcol International Corp.
    Inventors: Joseph M. Fuqua, Paul Klein
  • Patent number: 8367749
    Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: February 5, 2013
    Assignee: Ask Chemicals L.P.
    Inventor: Ronald C. Aufderheide
  • Patent number: 8349752
    Abstract: The present invention provides a plate brick having a low amount of generation of smoke and a gas with a pungent odor during use, and exhibiting high durability. A plate brick of the present invention is obtained by: adding an organic binder to a refractory raw material mixture containing 0.5 to 20 mass % of aluminum and/or aluminum alloy; kneading the mixture with the organic binder; forming the kneaded mixture into a shaped body; and subjecting the shaped body to a heat treatment at a temperature of 400 to 1000° C., wherein the plate brick is obtained without being impregnated with a carbon-containing liquid material comprising tar or pitch, after the heat treatment. The plate brick has a compressive strength of 180 MPa or more, and a weight-increasing rate of 1% or less as measured in a hydration test using an autoclave.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: January 8, 2013
    Assignee: Krosakiharima Corporation
    Inventors: Yasuaki Shin, Kazuo Ito, Michihiko Ichimaru, Tamotsu Wakita, Masamichi Asai
  • Publication number: 20120199309
    Abstract: A foundry mix composition including silica sand, unexpanded perlite ore, and a binder material. The unexpanded perlite ore is present in the foundry mix composition from about 0.5 wt % to about 5.0 wt %. Exemplary embodiments of the present invention also contemplate methods of making a sand mold/core from such a foundry mix composition.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: ASK CHEMICALS L.P.
    Inventors: Ralph E. Showman, Stacey L. Clifford, Sean B. Harmon
  • Publication number: 20120148736
    Abstract: A composition for use in investment casting shells and a method of making the composition is disclosed. The composition includes an engineered binder and a refractory flour. The engineered binder comprises a siliceous material and at least one organic component selected from: at least one type of wood pulp; at least one species of cellulose fiber; and combinations thereof. A particular benefit of the investment shell composition is simultaneously increased permeability and load bearing capacity.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 14, 2012
    Inventor: Sankar Bhattacharja
  • Patent number: 8133933
    Abstract: Phenolic resin binder systems for sand molds, used in metal casting, which improve the quality of thermally reclaimed sand, are described. The substantial or complete elimination of calcium compounds (e.g., calcium stearate and calcium hydroxide, conventionally employed as a mold lubricant and a resin curing catalyst, respectively) allows the thermally reclaimed sand to be reused over multiple thermal reclamation cycles without the adverse effects previously encountered.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: March 13, 2012
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Richard Rediger, Edward Lucas
  • Patent number: 8109319
    Abstract: A molding process which comprises mixing together a particulate aggregate, plural kinds of water-soluble binders, a crosslinking agent causing crosslinking reaction with the binders, a phenol resin, and water, agitating the obtained mixture to prepare a bubbled fluid aggregate mixture, filling the aggregate mixture into a molding cavity, and solidifying the aggregate mixture through the evaporation of water from the mixture to give a mold made from the mixture.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: February 7, 2012
    Assignee: Sintokogio, Ltd.
    Inventors: Norihiro Asano, Toshihiko Zenpo, Masaya Hotta, Kazuyuki Nishikawa
  • Patent number: 8071664
    Abstract: Compositions comprising (1) a refractory and/or a binder, and (2) bis-cyclopentadienyl iron cyclopentadienyl manganese tricarbonyl, derivatives thereof, and mixtures thereof.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: December 6, 2011
    Assignee: ASK Chemicals L.P.
    Inventors: Ronald C. Aufderheide, Michael T. Brown, Jorg Kroker, Xianping Wang
  • Patent number: 8058325
    Abstract: A process for producing casting cores or molds from a mold material, based on mold base material and organic or inorganic binder, an additive composed of pore former, icing sugar and/or a similar carbon compound, and dye being admixed to the mold material and/or the binder.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: November 15, 2011
    Assignee: Georg Fischer Automobilguss GmbH
    Inventors: Wolfram Seiterle, Artur Bissert
  • Patent number: 8007580
    Abstract: An additive to foundry sand molding and core aggregates is used to produce sand cores and molds comprising kyanite, spodumene, titanium dioxide, ilmenite and black iron oxide. The additive produces a sand-based foundry molding and core aggregate which resists the formation of some of the defects commonly associated with the production of castings produced by silica sand-based molding and core aggregates. In particular, the additive improves the quality of castings poured at temperatures higher than those of the pouring temperatures of molten iron, such as in steel castings, and in iron castings with “hot spots.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: August 30, 2011
    Assignee: IGC Technologies, LLC
    Inventors: Jeffrey J. Cieplewski, Andrew Callan, Rebecca Roti
  • Publication number: 20110139311
    Abstract: Disclosed is a foundry mix containing an organic salt and its use to make foundry shapes by the warm-box, hot-box, no-bake, and cold-box process, the use of these foundry shapes to make metal castings, and the metal castings prepared by the process.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 16, 2011
    Inventors: Ralph E. Showman, Sean B. Harmon
  • Publication number: 20110115488
    Abstract: Casting compound suitable for casting an electronic module, in particular a large-volume coil such as a gradient coil, which is composed of a support material forming a matrix, one or more fillers made of inorganic microparticles, and at least one filler made of polymer nanoparticles.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 19, 2011
    Inventors: Peter Groeppel, Juergen Huber, Gerhard Piecha, Lothar Schoen, Matthias Uebler
  • Patent number: 7919179
    Abstract: To provide resin-coated sand for a multilayer mold in which the consolidation strength of the casting mold obtained by using it and gas permeability thereof are improved at the same time, the amount of occurrence of pyrolytic products (tar, soot and the like) derived from organic substances is effectively inhibited, when molding is performed using such a casting mold, and further, the casting mold after molding can exhibit excellent collapsibility. Disclosed is resin-coated sand for a multilayer mold, in which surfaces of refractory particles are coated with a binder composition containing a phenolic novolak resin having an ortho/para bond ratio of methylene groups of 1.5 or more and an aromatic amine as indispensable constituents, and the grain fineness number is from 80 to 150.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: April 5, 2011
    Assignees: Asahi Organic Chemicals Industry Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Hiroshi Furusawa, Masanori Totsuka, Naohisa Shibata
  • Publication number: 20110073270
    Abstract: The invention relates to a size composition (coating composition) for casting moulds and cores, comprising at least one metal additive which contains a metal or a compound of a metal, wherein the metal is selected from one of groups 7 or 9 to 12 of the Periodic Table of the Elements. The invention also relates to a process for producing a casting mould, which comprises a mould coating of the size (coating) according to the invention, and to the use of said mould for the casting of metals.
    Type: Application
    Filed: May 27, 2009
    Publication date: March 31, 2011
    Applicant: Ashland-Südchemie-Kernfest GmbH
    Inventors: Reinhard Stötzel, Matthias Schrod, Michael Kloskowski
  • Publication number: 20100319874
    Abstract: A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein.
    Type: Application
    Filed: November 14, 2008
    Publication date: December 23, 2010
    Applicant: UNIVERSITY OF NORTHERN IOWA RESEARCH FOUNDATION
    Inventors: Gerard R. Thiel, Shoshanna R. Coon, Mitchell Patterson, Andrew Simonson, Ian Williams, Ryan Jones
  • Publication number: 20100307714
    Abstract: The present invention provides a structure for producing cast articles containing one or more inorganic particles selected from amorphous and artificial graphites, an inorganic fiber and a thermosetting resin and having a gas permeability of 1 to 500.
    Type: Application
    Filed: January 15, 2009
    Publication date: December 9, 2010
    Inventors: Akira Yoshida, Masayuki Osaki, Toshiki Matsuo, Tomofumi Kanzawa
  • Publication number: 20100152321
    Abstract: An object is to provide a nonaqueous hot casting repair mix which, while enjoying simple and convenient installation, can substantially reduce hardening time after installation. The hot casting repair mix according to the invention is characterized by containing 5 to 30% by weight of a binder capable of forming a carbon bond in hot condition and 1 to less than 5% by weight of an iron powder and the balance consisting of a refractory aggregate.
    Type: Application
    Filed: April 10, 2008
    Publication date: June 17, 2010
    Applicant: SHINAGAWA REFRACTORIES, CO., LTD.
    Inventors: Makoto Namba, Hisaharu Sasaki, Kiyoyuki Komatsubara, Takaaki Koyama
  • Patent number: 7723401
    Abstract: This invention relates to a process for making foundry shapes (e.g. cores and molds) using epoxy-acrylate cold-box binders containing an oxidizing agent and elevated levels of an organofunctional silane, which are cured in the presence of sulfur dioxide, and to a process for casting metals using the foundry shapes. The metal parts have fewer casting defects because the foundry shapes made with the binder are more resistant to erosion.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: May 25, 2010
    Assignee: Ashland Licensing and Intellectual Property, LLC
    Inventors: Xianping Wang, H. Randall Shriver, Jorg Kroker
  • Patent number: 7717994
    Abstract: The invention relates to coating material comprising a water-soluble salt as a filler. Such materials are especially suitable as core washes for salt cores for using in foundry technology.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: May 18, 2010
    Assignee: Ashland-Sudchemie-Kernfest GmbH
    Inventors: Herbert Pitamitz, Gernot Lederer
  • Publication number: 20100105803
    Abstract: A composition has a water dispersible esterified trimer acid (ETA) and a block co-polymer, especially a polyoxyalkylene block copolymer having EO and PO blocks. The composition may also have a polymeric surfactant antifoaming agent and an oil (especially a mineral oil or ester oil).
    Type: Application
    Filed: December 20, 2007
    Publication date: April 29, 2010
    Applicant: CRODA UNIQEMA INC.
    Inventor: Ronald Eugene Bingeman
  • Publication number: 20100099794
    Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 22, 2010
    Inventor: Ronald C. Aufderheide
  • Patent number: 7659327
    Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: February 9, 2010
    Assignee: Ashland Licensing and Intellectual Property, LLC
    Inventor: Ronald C. Aufderheide
  • Patent number: 7645814
    Abstract: A method for the production of cores and molds for casting molds, based on a base molding material and an organic or inorganic binding agent and an additive. According to the method, pre-forming substances are used in order to dispense with the use of sizing substances and to prevent the formation of ribs.
    Type: Grant
    Filed: April 19, 2003
    Date of Patent: January 12, 2010
    Assignee: Georg Fischer AG
    Inventors: Alexander Schrey, Gotthard Wolf, Rolf Rietzscher
  • Publication number: 20090288739
    Abstract: The present invention relates to binders for pulverulent metals or pulverulent metal alloys, thermoplastic compositions comprising these binders for producing shaped metallic bodies, a process for producing them, their use and a process for producing shaped bodies therefrom.
    Type: Application
    Filed: July 5, 2007
    Publication date: November 26, 2009
    Applicant: BASF SE
    Inventors: Hans Wohlfromm, Jens Assmann, Johan Herman Hendrik ter Maat, Martin Blömacher
  • Patent number: 7579075
    Abstract: It is an object of the present invention to provide a phenolic novolak resin for a shell mold which is capable of simultaneously solving a problem of gas defect caused by a tar generated at the time of casting and a problem of a casting defect represented by veining. As the phenolic novolak resin in RCS for the shell mold, there is used a copolycondensation resin-type phenolic novolak resin obtained by reacting a phenol and an alkylphenol, with at least one of aldehydes, wherein a ratio of an ortho-bond to a para-bond of a methylene group in the phenolic novolak resin is not less than 1.5, and a fire-resisitant particle is coated with this resin.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: August 25, 2009
    Assignee: Asahi Organic Chemicals Industry Co., Ltd.
    Inventor: Hiroshi Furusawa
  • Publication number: 20090199992
    Abstract: The present invention provides an epoxy acrylate foundry binder composition having an epoxy resin component (Part 1) and an acrylate component (Part 2) containing about 1% to less than about 6% by weight of a borate ester. The epoxy acrylate binders of the present invention are useful in making foundry cores and molds in that the addition of the borate ester increases hot strength of the binder system. Also provided is a cold-box process for making sand cores and molds using the epoxy acrylate binders cured by sulfur dioxide vapor.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Applicant: HA-INTERNATIONAL, LLC
    Inventors: Doug Trinowski, Sudhir Trikha, David Horstman