Patents by Inventor Arnd Eberhardt
Arnd Eberhardt 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: 11912631Abstract: A method for the kinetic regulation of cementitious binders and/or cementitious binder compositions, the method including the steps of providing a cementitious binder, admixing at least one borate mineral to said cementitious binder, and optionally admixing an activator selected from the group consisting of CaO, Ca(OH)2, and/or CaSO4.Type: GrantFiled: June 12, 2020Date of Patent: February 27, 2024Assignee: SIKA TECHNOLOGY AGInventors: Luis Pegado, Emmanuel Gallucci, Arnd Eberhardt, Patrick Juilland, Denise Schönenberger, Letizia Caderas
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Patent number: 11780738Abstract: An aqueous suspension including 5 to 65 wt. % of calcium hydroxide, wherein at least 50 wt. % of the calcium hydroxide is present in the form of nanoparticles, and at least one compound for stabilizing the suspension. The aqueous suspension accelerates the setting of mineral binder compositions without adversely affecting the processing properties of the composition.Type: GrantFiled: March 22, 2019Date of Patent: October 10, 2023Assignee: SIKA TECHNOLOGY AGInventors: Patrick Juilland, Emmanuel Gallucci, Denise Schönenberger, Luis Pegado, Lukas Frunz, Arnd Eberhardt
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Publication number: 20230202926Abstract: A method for increasing the workability of a binder composition including calcined clay, limestone, and Portland cement. The method includes a step of adding an admixture comprising at least one PCE and at least one additive selected from the group including sugar acids, sugars, sugar alcohols, and hydroxycarboxylic acids. The invention also relates to an admixture to be used in said method and hardenable compositions, especially concrete and mortar, obtainable by the method.Type: ApplicationFiled: June 8, 2021Publication date: June 29, 2023Applicant: SIKA TECHNOLOGY AGInventors: Patrick JUILLAND, Lukas FRUNZ, Arnd EBERHARDT, Emmanuel GALLUCCI, Luis PEGADO, Denise SCHÖNENBERGER, Carina TARNUTZER
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Publication number: 20230075895Abstract: Methods of obtaining aggregates and/or pulverulent mineral material from a starting material comprising hardened mineral binder and aggregates utilizing process auxiliaries selected from the group consisting of polycarboxylate ethers and/or esters (PCE), glycols, organic amines, especially alkanolamines, ammonium salts of organic amines with carboxylic acids, surfactants, especially nonionic surfactants, gemini surfactants, calcium stearate, alkoxylated phosphonic or phosphoric esters, propane-1,3-diol, carboxylic acids, sulfonated amino alcohols, boric acid, salts of boric acid, borax, salts of phosphoric acid, gluconate, iron sulfate, tin sulfate, antimony salts, alkali metal salts, alkaline earth metal salts, lignosulfonates, glycerol, melamine, melamine sulfonates, water absorbents in the form of a superabsorbent polymer or in the form of a sheet silicate, anticaking agents, sugars, sugar acids, sugar alcohols, phosphates, phosphonates, and mixtures thereof.Type: ApplicationFiled: February 19, 2021Publication date: March 9, 2023Applicant: SIKA TECHNOLOGY AGInventors: Arnd EBERHARDT, Patrick JUILLAND, Luis PEGADO, Emmanuel GALLUCCI, Lukas FRUNZ
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Publication number: 20220306530Abstract: A method for the kinetic regulation of cementitious binders and/or cementitious binder compositions, the method including the steps of providing a cementitious binder, admixing at least one borate mineral to said cementitious binder, and optionally admixing an activator selected from the group consisting of CaO, Ca(OH)2, and/or CaSO4.Type: ApplicationFiled: June 12, 2020Publication date: September 29, 2022Applicant: SIKA TECHNOLOGY AGInventors: Luis PEGADO, Emmanuel GALLUCCI, Arnd EBERHARDT, Patrick JUILLAND, Denise SCHÖNENBERGER, Letizia CADERAS
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Publication number: 20210323880Abstract: A combination of retarders and regulators for hydration reaction of cementitious binders including clinkers based on Ye'elimite. Set retarders are calcium complexing agents, consisting of sugar acids, sugars, sugar alcohols, hydroxycarboxylic acids, phosphates, phosphonates, borates and amines. Regulator general formula (I) is where M is H, NH4 or chosen from monovalent or divalent metal of groups Ia, IIa, IIIa, Ib, IIb, IVb, VIb, VIIb or VIIIb of periodic table of elements, where M is a divalent metal, a second equivalent of R—SO3 is present, and M is chosen from group consisting of H, NH4, Li, Na, K, MgX, CaX, or NiX with X?RSO3, and R is chosen from H, NH2, OH or from hydrocarbon chain with 1-18 C atoms which may be substituted by N and/or O and/or which may be linear or branched and/or which contain one or more unsaturated bonds and/or cycloaliphatic and/or aromatic moieties.Type: ApplicationFiled: November 22, 2019Publication date: October 21, 2021Applicant: SIKA TECHNOLOGY AGInventors: Patrick JUILLAND, Emmanuel GALLUCCI, Arnd EBERHARDT, Luis PEGADO, Letizia CADERAS, Denise SCHÖNENBERGER, Lukas FRUNZ
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Publication number: 20210053837Abstract: An aqueous suspension including 5 to 65 wt. % of calcium hydroxide, wherein at least 50 wt. % of the calcium hydroxide is present in the form of nanoparticles, and at least one compound for stabilizing the suspension. The aqueous suspension accelerates the setting of mineral binder compositions without adversely affecting the processing properties of the composition.Type: ApplicationFiled: March 22, 2019Publication date: February 25, 2021Applicant: SIKA TECHNOLOGY AGInventors: Patrick JUILLAND, Emmanuel GALLUCCI, Denise SCHÖNENBERGER, Luis PEGADO, Lukas FRUNZ, Arnd EBERHARDT
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Publication number: 20200181017Abstract: The invention relates to the use of carboxylic acid-based polyoxyalkylenes as low-emissions shrinkage reducers in mineral binders, to methods of reducing shrinkage and to corresponding compositions.Type: ApplicationFiled: February 12, 2020Publication date: June 11, 2020Applicants: Evonik Operations GmbH, SIKA TECHNOLOGY AGInventors: Frank Schubert, Anke Reinschmidt, Andreas Vetter, Sabina Kruczek, Dieter Honert, Thomas Müller, Inna König, Oliver Blask, Arnd Eberhardt
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Patent number: 10029951Abstract: A method for retrieving aggregates and/or powdery mineral material from a source material comprising hardened mineral binder and aggregates, in particular a waste or demolition material, comprises the steps of: a) treating the source material in a disintegration process and (b) separation of the treated source material at a predefined cut-off grain size in order to retrieve treated aggregates with a grain size of at least the predefined cut-off grain size and/or in order to retrieve powdery mineral material with a grain size below the predefined cut-off grain size.Type: GrantFiled: March 26, 2014Date of Patent: July 24, 2018Assignee: SIKA TECHNOLOGY AGInventors: Patrick Juilland, Emmanuel Gallucci, Arnd Eberhardt
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Patent number: 9919967Abstract: The present invention relates to an accelerator for hydraulic binding agents, comprising at least one phosphoric acid ester of a multivalent alcohol and at least one calcium compound. The accelerator according to the invention is capable of producing a very fast-curing mortar or concrete composition which has a high early strength and, nevertheless, very favorable processing properties and thus allows early dismantling or early loading and does not cause any losses in the final strength.Type: GrantFiled: May 20, 2015Date of Patent: March 20, 2018Assignee: SIKA TECHNOLOGY AGInventors: Emmanuel Gallucci, Patrick Juilland, Arnd Eberhardt, Lukas Frunz, Christian Bürge
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Publication number: 20170073267Abstract: The present invention relates to an accelerator for hydraulic binding agents, comprising at least one phosphoric acid ester of a multivalent alcohol and at least one calcium compound. The accelerator according to the invention is capable of producing a very fast-curing mortar or concrete composition which has a high early strength and, nevertheless, very favourable processing properties and thus allows early dismantling or early loading and does not cause any losses in the final strength.Type: ApplicationFiled: May 20, 2015Publication date: March 16, 2017Inventors: Emmanuel GALLUCCI, Patrick JUILLAND, Arnd EBERHARDT, Lukas FRUNZ, Christian BÜRGE
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Patent number: 9365454Abstract: A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N?1)z]2/nP915N3/5×105, at least equal to 70, where n is the average number of side chains per comb polymer molecule, N is the average number of backbone monomers per side chain, P is the average number of side chain monomers per side chain, and z is the average number of ionizable groups per side chain-free backbone monomer.Type: GrantFiled: June 15, 2012Date of Patent: June 14, 2016Assignee: SIKA TECHNOLOGY AGInventors: Delphine Marchon, Ueli Sulser, Arnd Eberhardt, Robert Flatt
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Publication number: 20160046532Abstract: A method for retrieving aggregates and/or powdery mineral material from a source material comprising hardened mineral binder and aggregates, in particular a waste or demolition material, comprises the steps of: a) treating the source material in a disintegration process and (b) separation of the treated source material at a predefined cut-off grain size in order to retrieve treated aggregates with a grain size of at least the predefined cut-off grain size and/or in order to retrieve powdery mineral material with a grain size below the predefined cut-off grain size.Type: ApplicationFiled: March 26, 2014Publication date: February 18, 2016Applicant: SIKA TECHNOLOGY AGInventors: Patrick JUILLAND, Emmanuel GALLUCCI, Arnd EBERHARDT
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Publication number: 20140080943Abstract: A comb polymer that is a dispersant in a binder composition includes an alkaline activating agent, wherein the activating agent is intended for activation of a latently hydraulic and/or puzzolanic binder, and wherein the comb polymer has a polymer backbone formed from a plurality of backbone monomers and a plurality of polymeric side chains each formed from a plurality of side chain monomers and bonded thereto, and wherein at least some of the backbone monomers have one or more ionizable groups, and features a structure constant K of the comb polymer, defined as K=[(N?1)z]2/nP915N3/5×105, at least equal to 70, where n is the average number of side chains per comb polymer molecule, N is the average number of backbone monomers per side chain, P is the average number of side chain monomers per side chain, and z is the average number of ionizable groups per side chain-free backbone monomer.Type: ApplicationFiled: June 15, 2012Publication date: March 20, 2014Applicant: SIKA TECHNOLOGY AGInventors: Delphine Marchon, Ueli Sulser, Arnd Eberhardt, Robert Flatt