Patents by Inventor Torben Gädt
Torben Gädt 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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Publication number: 20190177223Abstract: The present invention relates to construction chemical compositions comprising a bisulfite adduct of glyoxylic acid or a salt or mixed salt thereof and an inorganic binder. The composition is useful as a hydration control agent of the inorganic binder.Type: ApplicationFiled: June 9, 2017Publication date: June 13, 2019Applicant: BASF SEInventors: Torben GAEDT, Joachim DENGLER, Oliver MAZANEC, Christoph HESSE, Sebastian SEUFERT
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Patent number: 10266700Abstract: The invention relates to a pulverulent composition preparable by contacting a powder with 0.01 to 50 wt %, based on the overall mass of the composition, of a liquid component comprising at least one copolymer obtainable by polymerizing a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical from the series carboxylic acid, carboxylic salt, carboxylic ester, carboxylic amide, carboxylic anhydride, and carboxylic imide and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, the liquid component comprising at least 1 wt % of the at least one copolymer and at least 30 wt % of an organic solvent, and the powder which is contacted with the liquid component comprising no inorganic binder. Further disclosed is a binder composition which comprises a pulverulent composition of the invention and an inorganic binder.Type: GrantFiled: March 24, 2014Date of Patent: April 23, 2019Assignee: BASF SEInventors: Manfred Bichler, Michael Schinabeck, Torben Gädt, Oliver Mazanec
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Publication number: 20190071545Abstract: The invention relates to a process for modifying polymer particles of an aqueous polymer dispersion in which positively or negatively charged polymer particles are provided with an inorganic salt shell. The inorganic shell leads to an improved drying ability and storage stability of the latex and improves the storage stability of the resulting polymer powder. The obtained polymer powder exhibits an improved viscosity and faster skin-forming time in the final application and is therefore particularly useful in a building material composition.Type: ApplicationFiled: April 10, 2017Publication date: March 7, 2019Applicant: BASF SEInventors: Gerhard ALBRECHT, Sophie PUTZIEN, Torben GAEDT, Michael DIETZSCH, Harald GRASSL, Iris LOESCHER, Luc NICOLEAU
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Patent number: 10144673Abstract: The invention relates to a method for producing a calcium silicate hydrate-comprising hardening accelerator in powder form, which comprises the steps of (a) providing an aqueous suspension comprising calcium silicate hydrate; (b) mixing at least one calcium compound, selected from calcium acetate, calcium formate, calcium hydroxide, calcium oxide, and mixtures of two or more of said compounds, with the aqueous suspension comprising calcium silicate hydrate; and (c) drying the resulting mixture. The invention also relates to the hardening accelerator obtainable by this method, to the use thereof, and to building material mixtures which comprise the hardening accelerator.Type: GrantFiled: April 20, 2016Date of Patent: December 4, 2018Assignee: BASF SEInventors: Manfred Bichler, Martin Winklbauer, Torben Gaedt, Joachim Dengler, Christoph Hesse, Bernhard Mayr
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Patent number: 10144671Abstract: A process for hydrophobization of concrete or mortar using an aqueous dispersion containing an alkylketene dimer, at least one emulsifier and a condensation product of phenol sulfonic acid and formaldehyde, naphthalene sulfonic acid and formaldehyde, or naphthalene sulfonic acid, phenol, formaldehyde and urea; and the concrete or mortar obtainable by the process. The process allows effective mass and surface hydrophobization of concrete.Type: GrantFiled: October 23, 2015Date of Patent: December 4, 2018Assignee: BASF SEInventors: Uwe Gehrig, Alexander Assmann, Klaus Seip, Martin Pichler, Torben Gädt
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Patent number: 10131578Abstract: The invention relates to a dispersant comprising a polymer obtainable by copolymerization of monomers including 5 to 80 mol % of a hydroxyalkyl acrylate phosphate and/or hydroxyalkylacrylamide phosphate (monomer 1), 0 to 20 mol % of a di(hydroxyalkyl acrylate) phosphate and/or di(hydroxyalkylacrylamide) phosphate (monomer 2) and 1 to 80 mol % of a polyalkylene glycol-containing macromonomer comprising an alkene group (monomer 3). Further disclosed is a process for preparing the polymers of the invention and the use thereof as dispersants in calcium sulphate-containing compositions. A further aspect of the invention is a process for producing shaped gypsum bodies, and also shaped gypsum bodies, more particularly gypsum plasterboards and self-levelling screeds, comprising the dispersant of the invention.Type: GrantFiled: July 10, 2014Date of Patent: November 20, 2018Assignee: BASF SEInventors: Torben Gaedt, Martin Winklbauer, Harald Grassl, Michael Schinabeck, Nina Susanne Hillesheim, Antonia Grafetstetter
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Publication number: 20180230052Abstract: The invention relates to a method for producing a dispersant, comprising the steps of a) providing at least one water-soluble polymer comprising polyether groups, b) providing an inorganic component comprising at least one phyllosilicate which has an integral sheet charge of 0, 1 or 2, c) producing an aqueous suspension comprising the at least one water-soluble polymer comprising polyether groups and the inorganic component comprising the at least one phyllosilicate, and d) spray-drying the aqueous suspension to give a solid. Additionally disclosed is the use of the dispersant of the invention in an inorganic binder composition.Type: ApplicationFiled: March 3, 2016Publication date: August 16, 2018Applicant: BASF SEInventors: Torben GAEDT, Joachim DENGLER, Martin WINKLBAUER, Manfred BICHLER, Oliver MAZANEC
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Patent number: 10035729Abstract: The present invention relates to a composition comprising (?) at least one inorganic binder and (?) at least one water-soluble copolymer based on (a) 0.1 to 20 wt % of at least one monomer of the formula (I) and (b) 25 to 99.9 wt % of at least one hydrophilic monomer (b) which is different from monomer (a), where the at least one copolymer has a molar mass average M of 1 500 000 to 30 000 000 g/mol. Furthermore, a process for producing this composition is disclosed. A further aspect of the present invention is the use of the copolymer of component (?) as rheological additive in a composition of the invention.Type: GrantFiled: June 12, 2015Date of Patent: July 31, 2018Assignee: BASF SEInventors: Björn Langlotz, Thomas Gastner, Torben Gädt, Oliver Mazanec, Michael Schinabeck, Diana Eissmann, Stefan Friedrich
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Patent number: 10005695Abstract: The invention relates to a composition comprising 5-50 wt % of calcium silicate hydrate, 10-60 wt % of at least one water-soluble, acid group-containing polymer comprising polyether groups, and 5-40 wt % of at least one polyalkylene glycol ether. Further disclosed is a process for preparing this composition, and cementitious mixtures comprising the composition. A further aspect of the present invention is the use of the composition of the invention in cementitious mixtures for accelerating the development over time of the dispersing action of the acid group-containing polymer after addition of the mixing water and a subsequently accelerated curing of the mixture.Type: GrantFiled: May 12, 2015Date of Patent: June 26, 2018Assignee: BASF SEInventors: Manfred Bichler, Torben Gädt, Niklas Loges, Oliver Mazanec, Christoph Hesse
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Publication number: 20180050962Abstract: The invention relates to a method for producing a calcium silicate hydrate-comprising hardening accelerator in powder form, which comprises the steps of (a) providing an aqueous suspension comprising calcium silicate hydrate; (b) mixing at least one calcium compound, selected from calcium acetate, calcium formate, calcium hydroxide, calcium oxide, and mixtures of two or more of said compounds, with the aqueous suspension comprising calcium silicate hydrate; and (c) drying the resulting mixture. The invention also relates to the hardening accelerator obtainable by this method, to the use thereof, and to building material mixtures which comprise the hardening accelerator.Type: ApplicationFiled: April 20, 2016Publication date: February 22, 2018Inventors: Manfred BICHLER, Martin WINKLBAUER, Torben GAEDT, Joachim DENGLER, Christoph HESSE, Bernhard MAYR
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Publication number: 20180044238Abstract: The invention relates to a method for producing a dispersant, comprising the steps of a) providing at least one water-soluble polymer comprising polyether groups, b) providing an inorganic component comprising at least one phyllosilicate which has an integral sheet charge of 0, 1 or 2, c) producing an aqueous suspension comprising the at least one water-soluble polymer comprising polyether groups and the inorganic component comprising the at least one phyllosilicate, and d) spray-drying the aqueous suspension to give a solid. Additionally disclosed is the use of the dispersant of the invention in an inorganic binder composition.Type: ApplicationFiled: March 3, 2016Publication date: February 15, 2018Applicant: BASF SEInventors: Torben GAEDT, Joachim DENGLER, Martin WINKLBAUER, Manfred BICHLER, Oliver MAZANEC
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Patent number: 9815740Abstract: The invention concerns a composition containing a) 2 to 80 weight % of Ordinary Portland Cement with respect to the total weight of the composition b) 2 to 80 weight % of a calcium sulfate based binder with respect to the total weight of the composition, with the proviso that the weight ratio of a) Ordinary Portland Cement to b) calcium sulfate based binder is from 95/5 to 5/95 and c) at least one retarder for calcium sulfate based binders, the retarder being a chemical structure, which comprises from 3 to 70 amino acids. Also concerned is the use of the compositions for self-levelling underlayments, tile adhesives, non-shrink grouts, floor screeds and repair mortars.Type: GrantFiled: April 1, 2015Date of Patent: November 14, 2017Assignee: BASF SEInventors: Oliver Mazanec, Sebastian Seufert, Joachim Dengler, Torben Gaedt
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Patent number: 9802864Abstract: The invention relates to an additive which can be used as a hardening accelerator for hydraulically setting compositions, comprising a) at least one polymeric dispersant comprising structural units having anionic or anionogenic groups and structural units having polyether side chains, b) at least one sulfonic acid compound of the formula (I) in which A1 is NH2, NHMe, NMe2, N(CH2—CH2—OH)2, CH3, C2H5, CH2—CH2—OH, phenyl, or p-CH3-phenyl and Kn+ is an alkali metal cation, or one equivalent of a cation selected from Ca2+, Mg2+, Sr2+, Ba2+, Zn2+, Fe2+, Fe3+, Al3+, Mn2+, or Cu2+, and c) calcium silicate hydrate particles.Type: GrantFiled: January 27, 2014Date of Patent: October 31, 2017Assignee: BASF SEInventors: Christoph Hesse, Manfred Bichler, Alexander Kraus, Luc Nicoleau, Torben Gädt, Martin Winklbauer
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Patent number: 9803053Abstract: The invention concerns a polycondensate containing (I) at least a structural unit, which is an aromatic moiety bearing a polyether side chain comprising 9 to 41 alkylene glycol units, (II) at least a structural unit, which is an aromatic moiety bearing at least one phosphoric acid ester group and (III) at least a methylene unit (—CH2—), the polycondensate having a polycondensation degree of 10 to 75. Also concerned are building material mixtures containing said polycondensates and the use as dispersant for inorganic binders.Type: GrantFiled: December 16, 2014Date of Patent: October 31, 2017Assignee: Construction Research & Technology, GmbHInventors: Alexander Kraus, Joachim Dengler, Torben Gädt, Sandro Moro, Juergen Bokern, Anil Bendale, Nicolas Moins, Nicoletta Zeminian
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Patent number: 9796628Abstract: The present invention relates to an additive for hydraulically setting compositions, comprising a colloidally disperse preparation of at least one salt of a mono- or polyvalent metal cation and of at least one compound which is able to release an anion which forms a low-solubility salt with the metal cation, and of at least one polymeric sulphonated dispersant. The additive is suitable particularly as a slump retainer.Type: GrantFiled: January 20, 2015Date of Patent: October 24, 2017Assignee: Construction Research & Technology, GmbHInventors: Torben Gädt, Harald Grassl, Luc Nicoleau, Joachim Dengler, Martin Winklbauer
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Patent number: 9777133Abstract: The present invention relates to an additive for hydraulically setting compositions, comprising a colloidally disperse preparation of at least one water-soluble salt of a polyvalent metal cation, at least one compound capable of releasing an anion which forms a sparingly soluble salt with the polyvalent metal cation, and at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains.Type: GrantFiled: February 26, 2014Date of Patent: October 3, 2017Assignee: Construction Research & Technology, GmbHInventors: Torben Gädt, Harald Grassl, Alexander Kraus, Luc Nicoleau, Martin Winklbauer
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Publication number: 20170240468Abstract: The invention relates to a process for hydrophobization of concrete or mortar using an alkylketene dimer dispersion and to the concrete or mortar obtainable by the process of the invention. The process allows to achieve effective mass and surface hydrophobization of concrete.Type: ApplicationFiled: October 23, 2015Publication date: August 24, 2017Inventors: Uwe GEHRIG, Alexander ASSMANN, Klaus SEIP, Martin PICHLER, Torben GÄDT
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Publication number: 20170158561Abstract: The invention relates to a composition comprising 5-50 wt % of calcium silicate hydrate, 10-60 wt % of at least one water-soluble, acid group-containing polymer comprising polyether groups, and 5-40 wt % of at least one polyalkylene glycol ether. Further disclosed is a process for preparing this composition, and cementitious mixtures comprising the composition. A further aspect of the present invention is the use of the composition of the invention in cementitious mixtures for accelerating the development over time of the dispersing action of the acid group-containing polymer after addition of the mixing water and a subsequently accelerated curing of the mixture.Type: ApplicationFiled: May 12, 2015Publication date: June 8, 2017Inventors: Manfred BICHLER, Torben GÄDT, Niklas LOGES, Oliver MAZANEC, Christoph HESSE
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Patent number: 9670435Abstract: The invention relates to copolymers which comprise, in copolymerized form, a1) 30 to 90% by weight of at least one monoethylenically unsaturated C3-C8-carboxylic acid or of an anhydride or water-soluble salt thereof, a2) 3 to 60% by weight of at least one monomer comprising sulfo groups, a3) 3 to 60% by weight of at least one nonionic monomer of the formula (I) H2C?C(R1)COO—[R2—O]o—R3??(I) ?in which R1 is hydrogen or methyl, R2 are identical or different, linear or branched C2-C6-alkylene radicals which may be arranged in blocks or randomly, and R3 is hydrogen or a straight-chain or branched C1-C4-alkyl radical and o is a natural number from 3 to 50, a4) 0 to 30% by weight of one or more further ethylenically unsaturated monomers which are polymerizable with a1), a2) and a3), where the sum of a1), a2), a3) and a4) adds up to 100% by weight.Type: GrantFiled: November 22, 2011Date of Patent: June 6, 2017Assignee: BASF SEInventors: Jürgen Detering, Bolette Urtel, Heike Weber, Roland Ettl, Torben Gädt, Ewald Heintz, Thorsten Bastigkeit, Thomas Eiting, Dorota Sendor-Müller
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Publication number: 20170129812Abstract: The present invention relates to a composition comprising (?) at least one inorganic binder and (?) at least one water-soluble copolymer based on (a) 0.1 to 20 wt % of at least one monomer of the formula (I) and (b) 25 to 99.9 wt % of at least one hydrophilic monomer (b) which is different from monomer (a), where the at least one copolymer has a molar mass average M of 1 500 000 to 30 000 000 g/mol. Furthermore, a process for producing this composition is disclosed. A further aspect of the present invention is the use of the copolymer of component (?) as rheological additive in a composition of the invention.Type: ApplicationFiled: June 12, 2015Publication date: May 11, 2017Inventors: Björn LANGLOTZ, Thomas GASTNER, Torben GÄDT, Oliver MAZANEC, Michael SCHINABECK, Diana EISSMANN, Stefan FRIEDRICH