Patents Assigned to HUTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
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Patent number: 11981770Abstract: A description is given of a binder system, intended more particularly for use in a process from the group consisting of polyurethane cold-box processes and polyurethane no-bake processes.Type: GrantFiled: March 9, 2020Date of Patent: May 14, 2024Assignee: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Annika Klose, Daniel Winkelhaus
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Patent number: 11975382Abstract: What is described is the use of a particulate material comprising, as its sole constituent or as one of multiple constituents, a particulate synthetic amorphous silicon dioxide having a particle size distribution with a median in the range from 0.1 to 0.4 ?m, determined by means of laser scattering, as additive for a molding material mixture at least comprising: a refractory mold base material having an AFS grain fineness number in the range from 30 to 100, particulate amorphous silicon dioxide having a particle size distribution with a median in the range from 0.7 to 1.5 ?m, determined by means of laser scattering, and water glass, for increasing the moisture resistance of a molding producible by hot curing of the molding material mixture. Also described are corresponding processes, mixtures and kits.Type: GrantFiled: May 14, 2020Date of Patent: May 7, 2024Assignee: HUTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Lukas Mirko Reinold, Christian Lustig, René Vargovic, Edgar Müller
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Publication number: 20240001433Abstract: The invention relates to a method of producing an article selected from the group consisting of casting mold, core, feeder and molding compound for production of part of a casting mold, core or feeder, comprising the following steps: (S1) producing or providing in the foundry: a first component (A), comprising a first binder component (b1) of a binder system and an amount of a first mold base material and, spatially separated therefrom, a second component (B), comprising a second binder component (b2) of the binder system and an amount of a second mold base material wherein the first binder component (b1) and the second binder component (b2) are suitable for chemical reaction with one another and for curing of a mixture of the first component (A) and the second component (B), (S2) mixing by contacting the first component (A) and the second component (B) in a particular mass ratio, so as to result in a self-curing molding compound.Type: ApplicationFiled: November 26, 2021Publication date: January 4, 2024Applicants: HÜTTENES-ALBERTUS Chemische werke gesellschaft mit beschränkter Haftung, HUTTENES ALBERTUS France, Chemex Foundry Solutions GmbHInventors: Lars Zumbusch, Manuel Vargas, Sven Dommen
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Publication number: 20240001434Abstract: The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.Type: ApplicationFiled: June 15, 2023Publication date: January 4, 2024Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Sandra LEHMANN, Klaus RIEMANN, Nils ZIMMER, Hermann LIEBER, Jürgen HÜBERT
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Publication number: 20230271245Abstract: What is described is a process for producing an article for use in the foundry industry, selected from the group consisting of molds, cores, feeder elements and molding material mixtures, comprising the following steps: (S1) producing or providing a binder system comprising the following components in three spatially separate vessels: a component (A) comprising particulate amorphous silicon dioxide, a first liquid component (B) comprising waterglass, and a second liquid component (C) comprising aluminate ions dissolved in an aqueous phase, (S2) contacting a mold base material (D) and constituents of all the said components (A), (B) and (C) of the binder system in predetermined ratios in one or more steps, so as to result in a molding material mixture in which the aluminate ions and the particulate amorphous silicon dioxide are mixed wholly or partly into the waterglass, wherein steps (S1) and (S2) are conducted in a facility for producing molding material mixtures.Type: ApplicationFiled: July 12, 2021Publication date: August 31, 2023Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Azghar Munshi, René Vergovic, Lukas Mirko Reinold, Maria Schweinefuss
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Patent number: 11717879Abstract: The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.Type: GrantFiled: April 10, 2017Date of Patent: August 8, 2023Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Sandra Lehmann, Klaus Riemann, Nils Zimmer, Hermann Lieber, Jürgen Hübert
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Publication number: 20230242455Abstract: What are described are a process for producing an insulating product for the construction materials industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product.Type: ApplicationFiled: February 3, 2023Publication date: August 3, 2023Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Sandra LEHMANN, Klaus RIEMANN, Nils ZIMMER, Fabio SOLA, Andreas GÖTZ
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Publication number: 20230158562Abstract: The present invention describes the use of a coating composition, comprising an aqueous phase having a pH of at most 5 and one or more refractories, in the foundry industry and also coated, waterglass-bound foundry molding elements, especially foundry molds and/or foundry cores, which each comprise such an aforementioned coating composition. The invention further describes a method for producing a coated, waterglass-bound foundry molding element. The invention likewise describes a kit whose contents include an aforementioned coating composition, comprising aqueous acid and one or more refractories.Type: ApplicationFiled: December 20, 2017Publication date: May 25, 2023Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Sabrina Maria ANDERTEN, Klaus SEEGER, Christian LUSTIG, Paolo Adriano FELTRIN
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Publication number: 20230085809Abstract: The present invention describes a coating composition for the foundry industry, for use in the foundry, in particular comprising certain organic ester compounds of a formula (I) and particulate, amorphous silicon dioxide (SiO2); and also coated foundry molding elements, especially foundry molds and/or foundry cores, which each comprise a coating composition of the invention. The invention further describes the use of a coating composition of the invention for producing a coating on a foundry molding element and a method for producing a foundry molding element coated with a water-containing refractory coating. The invention likewise describes a kit whose contents include a coating composition of the invention.Type: ApplicationFiled: December 19, 2017Publication date: March 23, 2023Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Andreas JATTKE, Christian LUSTIG, Sabrina Maria ANDERTEN, Klaus SEEGER
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Patent number: 11603334Abstract: What are described are a process for producing an insulating product for the construction materials industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Also described are the use of a matrix encapsulation method for production of composite particles in the production of an insulating product for the construction materials industry or of an insulating material as intermediate for production of such a product, and the corresponding use of the composite particles producible by means of a matrix encapsulation method.Type: GrantFiled: May 30, 2018Date of Patent: March 14, 2023Assignee: HUTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Sandra Lehmann, Klaus Riemann, Nils Zimmer, Fabio Sola, Andreas Götz
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Publication number: 20230001470Abstract: What are described are the use of a refractory coating composition for production of cores for diecasting, a kit for production of cores for use in diecasting, a method of producing cores for use in diecasting, cores for use in diecasting, and the use of such cores in diecasting, especially of lightweight metalsType: ApplicationFiled: November 18, 2020Publication date: January 5, 2023Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Sabrina Maria Sachau, Maria Schweinefuß, Christian Lustig, Klaus Seeger
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Patent number: 11529673Abstract: A coating composition is described, for use in the foundry, in particular comprising particulate, amorphous silicon dioxide (SiO2) and an aqueous phase having a pH of at most 5, and also coated, waterglass-bound foundry molding elements, especially coated, waterglass-bound foundry molds and foundry cores, which each comprise a coating composition of the invention. Further described is the use of a coating composition of the invention for producing a coating on a waterglass-bound foundry molding element and a method for producing a waterglass-bound foundry molding element (mold or core) coated with a water-containing refractory coating. Likewise specified is a kit whose contents include a coating composition of the invention.Type: GrantFiled: December 20, 2017Date of Patent: December 20, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Andreas Jattke, Christian Lustig, Sabrina Maria Anderten, Klaus Seeger
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Publication number: 20220371081Abstract: A coating composition is described, for use in the foundry, in particular comprising particulate, amorphous silicon dioxide (SiO2) and an aqueous phase having a pH of at most 5, and also coated, waterglass-bound foundry molding elements, especially coated, waterglass-bound foundry molds and foundry cores, which each comprise a coating composition of the invention. Further described is the use of a coating composition of the invention for producing a coating on a waterglass-bound foundry molding element and a method for producing a waterglass-bound foundry molding element (mold or core) coated with a water-containing refractory coating. Likewise specified is a kit whose contents include a coating composition of the invention.Type: ApplicationFiled: August 4, 2022Publication date: November 24, 2022Applicant: Hüttenes-Albertus Chemische Werke Gesellschaft Mit Beschränkter HaftungInventors: Andreas JATTKE, Christian LUSTIG, Sabrina Maria ANDERTEN, Klaus SEEGER
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Amino acid-containing moulding material mixture for production of mouldings for the foundry industry
Patent number: 11338356Abstract: The present invention relates to a mold material mixture for producing moldings for the foundry industry, in particular for producing foundry molds, cores or feeders for the foundry industry, which comprises A) one or more pourable, refractory fillers, B) a binder system comprising i) formaldehyde, a formaldehyde donor and/or precondensates of formaldehyde and ii) an amino acid. The present invention additionally relates to the use of amino acids in a mold material mixture for producing moldings for the foundry industry or for producing moldings for the foundry industry, a process for producing a mold material mixture and a process for producing a molding for the foundry industry.Type: GrantFiled: November 28, 2017Date of Patent: May 24, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Jaime Díaz Fernández, Wolfgang Seelbach -
Patent number: 11311931Abstract: Described is a method of preparing a particulate refractory composition for use in the manufacture of foundry moulds and cores from spent foundry moulds or cores formed of refractory material and a binder containing water glass, the method comprising the following steps: providing broken material from spent foundry moulds or cores or preparing broken material from spent foundry moulds or cores, wherein the broken material comprises particles and/or aggregates of particles of refractory material having hardened water glass binder on their surface, mixing the broken material with particulate amorphous oxide comprising silicon dioxide in an amount of 85% by weight or more, based on the total amount of the particulate amorphous oxide, to give a mixture and subjecting the mixture to a heat treatment at a temperature of 400° C. or higher. Also described are a corresponding use, a reclamation mixture, and a method of making a foundry mould or core.Type: GrantFiled: September 6, 2019Date of Patent: April 26, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Xin Li, Christian Lustig, Mirko Reinold, Maria Schweinefuß, Nicolas Egeler
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Patent number: 11267760Abstract: What are described are a process for producing an insulating product for the refractory industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Likewise described are the use of a matrix encapsulation process in the production of an insulating product for the refractory industry and a corresponding insulating product and/or an insulating material as intermediate for production of such a product.Type: GrantFiled: May 30, 2018Date of Patent: March 8, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Sandra Lehmann, Klaus Riemann, Nils Zimmer, Hermann Lieber, Jürgen Hübert, Fabio Sola, Heike Mushardt
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Publication number: 20220064362Abstract: What is described are isocyanate compositions comprising ?-dicarbonyl compounds and a binder system, especially for use in a process from the group consisting of polyurethane cold-box process and polyurethane no-bake process, with this isocyanate composition as polyisocyanate component.Type: ApplicationFiled: December 10, 2019Publication date: March 3, 2022Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Annika KLOSE, Markus SCHABRUCKER
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Patent number: 11253913Abstract: A process (i) for producing a metal casting or (ii) for producing a cured shaped part for use in the casting of metallic castings is described. Furthermore, the use of an aliphatic polymer which comprises structural units containing hydroxy groups and has been crosslinked by etherification as binder of a shaped part for use in the casting of metallic castings is described. A shaped part for use in the casting of metallic castings, comprising at least one base mould material and a cured binder comprising or consisting of an aliphatic polymer which comprises structural units containing hydroxy groups and has been crosslinked by etherification, is likewise described. In addition, a cured shaped part which is producible by a process according to the invention and also a mould material mixture for use in the process of the invention are described.Type: GrantFiled: December 18, 2018Date of Patent: February 22, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Klaus Riemann, Nicola Mancini, Gérard Ladégourdie, Hermann Lieber, Nils Zimmer, Jürgen Hübert
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Patent number: 11230623Abstract: The present invention relates to a phenolic resin for use in the phenolic resin component of a two-component binder system for the polyurethane cold box process, to a two-component binder system for use in the polyurethane cold box process, to a molding material mixture for curing by contacting with a tertiary amine, to the use of a corresponding phenolic resin, of a corresponding phenol component, of a corresponding two-component binder system or of a corresponding molding material mixture. The present invention relates, moreover, to an article from the group consisting of feeders, foundry molds and foundry cores, producible from a corresponding molding material mixture, to a process for preparing a phenolic resin, and to a process for producing an article from the group consisting of feeders, foundry molds and foundry cores.Type: GrantFiled: December 21, 2017Date of Patent: January 25, 2022Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard Ladégourdie, Ursula Nitsch, Klaus Jenrich
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Publication number: 20210339308Abstract: Described is a method of preparing a particulate refractory composition for use in the manufacture of foundry moulds and cores from spent foundry moulds or cores formed of refractory material and a binder containing water glass, the method comprising the following steps: providing broken material from spent foundry moulds or cores or preparing broken material from spent foundry moulds or cores, wherein the broken material comprises particles and/or aggregates of particles of refractory material having hardened water glass binder on their surface, mixing the broken material with particulate amorphous oxide comprising silicon dioxide in an amount of 85% by weight or more, based on the total amount of the particulate amorphous oxide, to give a mixture and subjecting the mixture to a heat treatment at a temperature of 400° C. or higher. Also described are a corresponding use, a reclamation mixture, and a method of making a foundry mould or core.Type: ApplicationFiled: September 6, 2019Publication date: November 4, 2021Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Xin LI, Christian LUSTIG, Mirko REINOLD, Maria SCHWEINEFUß, Nicolas EGELER