Patents by Inventor Gérard Ladégourdie
Gérard Ladégourdie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11591264Abstract: Described are a composition comprising furfuryl silicates and furfuryl alcohol, especially for use as acid-curable binder, and processes for producing such a composition.Type: GrantFiled: July 30, 2018Date of Patent: February 28, 2023Assignee: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHARÄNKTER HAFTUNGInventors: David Strunk, Christian Fourberg, Gérard Ladégourdie, Norbert Benz
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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: 20210162489Abstract: What is described is the use of a composition containing one or more formaldehyde scavengers for production of a coating on a main body of a mold or core for metal casting that emits formaldehyde when heated, wherein the coating forms a surface of the mold or core that comes into contact with a metal melt in the casting operation.Type: ApplicationFiled: July 26, 2019Publication date: June 3, 2021Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Gérard LADÉGOURDIE, Bernd DONNER, Klaus SEEGER
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Publication number: 20210130235Abstract: Described are a composition comprising furfuryl silicates and furfuryl alcohol, especially for use as acid-curable binder, and processes for producing such a composition.Type: ApplicationFiled: July 30, 2018Publication date: May 6, 2021Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: David STRUNK, Christian FOURBERG, Gérard LADÉGOURDIE, Norbert BENZ
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Publication number: 20210121942Abstract: 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: ApplicationFiled: December 18, 2018Publication date: April 29, 2021Applicant: HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter HaftungInventors: Klaus Riemann, Nicola Mancini, Gérard Ladégourdie, Hermann Lieber, Nils Zimmer, Jürgen Hübert
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Publication number: 20190359762Abstract: 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: ApplicationFiled: December 21, 2017Publication date: November 28, 2019Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard LADÉGOURDIE, Ursula NITSCH, Klaus JENRICH
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Publication number: 20190255599Abstract: The invention relates to an aqueous alkaline binder composition for curing with carbon dioxide gas, comprising a negatively charged or uncharged phenol-aldehyde resin, comprising phenol groups, which is selected from the group consisting of resoles and mixtures comprising one or more resoles and also one or more novolacs, an oxyanion selected from the group consisting of borate ions, aluminate ions, stannate ions, zirconate ions, titanate ions, and mixtures thereof, for forming a stable complex with the resole phenol-aldehyde resin, where the total molar amount of the phenol groups of the phenol-aldehyde resin in the aqueous alkaline binder composition is in the range from 1 to 3 mol/kg, based on the total mass of the aqueous alkaline binder composition, and where the phenol-aldehyde resin possesses an average molecular weight (Mw) in the range from 750 to 1200 g/mol, determined by means of gel permeation chromatography.Type: ApplicationFiled: June 28, 2017Publication date: August 22, 2019Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard LADÉGOURDIE, Nicolas EGELER
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Publication number: 20190151932Abstract: The invention relates to an aqueous alkaline binder composition for curing with carbon dioxide gas, comprising a negatively charged or uncharged phenol-aldehyde resin, comprising phenol groups, which is selected from the group consisting of resoles and mixtures comprising one or more resoles and also one or more novolacs, an oxyanion selected from the group consisting of borate ions, aluminate ions, stannate ions, zirconate ions, titanate ions, and mixtures thereof, for forming a stable complex with the resole phenol-aldehyde resin, and one or more silanes in a total amount in the range from 2.5 to 10 wt %, based on the total mass of the binder composition, where the total molar to amount of the phenol groups of the phenol-aldehyde resin in the aqueous alkaline binder composition is in the range from 1 to 3 mol/kg, based on the total mass of the aqueous alkaline binder composition.Type: ApplicationFiled: June 28, 2017Publication date: May 23, 2019Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard LADÉGOURDIE, Nicolas EGELER
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Publication number: 20190091758Abstract: A description is given of a two-component binder system for use in the polyurethane cold box process, a mixture for curing by contacting with a tertiary amine, a method for producing a feeder, a foundry mold or a foundry core, and also feeders, foundry molds and foundry cores producible by this method, and the use of a two-component binder system of the invention or of a mixture of the invention for binding a mold raw material or a mixture of mold raw materials in the polyurethane cold box process.Type: ApplicationFiled: March 8, 2017Publication date: March 28, 2019Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard LADÉGOURDIE, Nicolas EGELER, Jaime DÍAZ FERNÁNDEZ
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Publication number: 20190047041Abstract: A description is given of a use of a composition comprising an ortho-fused phenolic resole in an amount of up to 60 wt %; as first solvent for the ortho-fused phenolic resole, one or more compounds selected from the group consisting of alkyl silicates, alkyl silicate oligomers and mixtures thereof, the total amount of these compounds being greater than 30 wt %; optionally one or more further solvents for the ortho-fused phenolic resole; optionally one or more further additives; the weight percentages being based on the total amount of the composition, as a binder component for producing feeder elements by the cold box process. A description is also given of the use of a two-component binder system for producing feeder elements by the cold box process, and of a method for producing a feeder element for the foundry industry, and also of a feeder element.Type: ApplicationFiled: February 17, 2017Publication date: February 14, 2019Applicant: HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Gérard LADÉGOURDIE, Sandra LEHMANN, Hermann LIEBER, Klaus RIEMANN, Nils ZIMMER, Jürgen HÜBERT, Markus DÖRSCHEL, Bernd DONNER, Ursula NITSCH
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Patent number: 9993863Abstract: The present invention relates primarily to a mixture that is suitable for use in the no-bake process for producing cores and molds for the foundry industry, and a reaction mixture comprising said mixture and an acid hardener (i.e. an acid catalyst). The present invention further relates to a method of producing a mixture according to the invention and a method of producing a mold or a core. The invention also relates to a mold or a core for producing metal objects and a kit comprising a mixture according to the invention and certain acid hardeners. The invention further relates to the use of a mixture according to the invention as cold-setting binder and the use of said mixtures or reaction mixtures in a no-bake process for producing metal objects.Type: GrantFiled: December 16, 2011Date of Patent: June 12, 2018Assignee: HUTTENES-ALBERTUS CHEMISCHE WERKE GMBHInventors: Christian Fourberg, Gérard Ladégourdie, Norbert Benz, Eckard Piech
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Patent number: 9238264Abstract: 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: GrantFiled: February 8, 2013Date of Patent: January 19, 2016Assignee: HUTTENES-ALBERTUS CHEMISCHE WERKE GMBHInventors: Gérard Ladégourdie, Markus Dörschel, Ursula Wichmann, Amine Serghini Anbari, David Strunk
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Publication number: 20140048740Abstract: The present invention relates primarily to a mixture that is suitable for use in the no-bake process for producing cores and moulds for the foundry industry, and a reaction mixture comprising said mixture and an acid hardener (i.e. an acid catalyst). The present invention further relates to a method of producing a mixture according to the invention and a method of producing a mould or a core. The invention also relates to a mould or a core for producing metal objects and a kit comprising a mixture according to the invention and certain acid hardeners. The invention further relates to the use of a mixture according to the invention as cold-setting binder and the use of said mixtures or reaction mixtures in a no-bake process for producing metal objects.Type: ApplicationFiled: December 16, 2011Publication date: February 20, 2014Applicant: HUETTENES-ALBERTUS CHEMISCHE WERKE GMBHInventors: Christian Fourberg, Gérard Ladégourdie, Norbert Benz, Eckard Piech
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Patent number: 8569425Abstract: The present invention relates to modified phenolic resins which contain silicic acid ester units. The modified phenolic resins may, for example, be used as components of a foundry binder system. The invention also relates to a method for producing such modified phenolic resins and to two-component binder systems which contain these modified phenolic resins. The invention furthermore relates to methods for producing foundry molds and foundry cores which contain the modified phenolic resins, and to the foundry molds and foundry cores themselves.Type: GrantFiled: June 21, 2011Date of Patent: October 29, 2013Assignee: Huttenes-Albertus Chemische Werke GmbHInventors: David Strunk, Gerard Ladegourdie, Frank Lenzen
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Patent number: 8563662Abstract: The present invention relates to modified phenolic resins which contain silicic acid ester units. The modified phenolic resins may, for example, be used as components of a foundry binder system. The invention also relates to a method for producing such modified phenolic resins and to two-component binder systems which contain these modified phenolic resins. The invention furthermore relates to methods for producing foundry molds and foundry cores which contain the modified phenolic resins, and to the foundry molds and foundry cores themselves.Type: GrantFiled: August 19, 2009Date of Patent: October 22, 2013Assignee: Huttenes-Albertus Chemische Werke GmbHInventors: David Strunk, Gerard Ladegourdie, Frank Lenzen
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Patent number: 8148463Abstract: This invention relates to alkaline resol phenol-aldehyde binder compositions and their use in the production of articles of bonded particulate material such as foundry moulds, foundry cores, or feeders.Type: GrantFiled: December 8, 2008Date of Patent: April 3, 2012Assignee: Huttenes-Albertus Chemische Werke GmbHInventors: Frank Lenzen, Gerard Ladegourdie
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Publication number: 20110275758Abstract: The present invention relates to modified phenolic resins which contain silicic acid ester units. The modified phenolic resins may, for example, be used as components of a foundry binder system. The invention also relates to a method for producing such modified phenolic resins and to two-component binder systems which contain these modified phenolic resins. The invention furthermore relates to methods for producing foundry molds and foundry cores which contain the modified phenolic resins, and to the foundry molds and foundry cores themselves.Type: ApplicationFiled: June 21, 2011Publication date: November 10, 2011Applicant: Huttenes-Albertus Chemische Werke GmbHInventors: David Strunk, Gerard Ladegourdie, Frank Lenzen
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Publication number: 20100130653Abstract: This invention relates to alkaline resol phenol-aldehyde binder compositions and their use in the production of articles of bonded particulate material such as foundry moulds, foundry cores, or feeders.Type: ApplicationFiled: December 8, 2008Publication date: May 27, 2010Applicant: Huttenes-Albertus Chemische Werke GmbHInventors: Frank Lenzen, Gerard Ladegourdie
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Patent number: 4929649Abstract: The binder serves to produce foundry moulds and comprises a solution (preferably an aqueous solution) of aldehyde reactive phenol substances and gaseous acetals (preferably dimethyl formal) as reaction partners and strong acids, e.g. sulphuric acid and sulphonic acids as a catalyst. The acetal is in this system hydrolysed by the acid, the basic aldehyde being formed, which will react with the aldehyde reactive phenol substance accompanied by cross-linking. The acid serves thereby simultaneously as a cross-linking catalyst. In principle, it is possible to regard as "aldehyde reactive phenol substances" any phenolic compounds which can in the acid range cross-link more or less spontaneously with aldehydes. Preferably, these are resorcinol or resorcinol products, e.g. resorcinol pitch or precondensates formed with a shortfall of aldehyde, e.g. based on resorcinol formaldehyde, phenol resorcinol formaldehyde or resorcinol melamine formaldehyde.To produce foundry moulds, a granular basic moulding material, e.g.Type: GrantFiled: July 13, 1988Date of Patent: May 29, 1990Assignee: Huttenes-Albertus Chemische Werke GmbHInventors: Marek Torbus, Franz Jerman, Gerard Ladegourdie, Dirk Lingemann, Willi Seiss, Aleksandar Vujevic