Patents by Inventor Ute Nattke
Ute Nattke 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: 11965056Abstract: The invention relates to a polymer composition that can be produced by (a) reacting an NCO-reactive polymer having exactly one NCO-reactive group per molecule, with a diisocyanate, the molar ratio of the diisocyanate molecule to the NCO-reactive groups of the NCO-reactive polymer being at least 2:1; and (b) reacting the residual NCO groups in the reaction product from step a) with an NCO-reactive silane. The invention also relates to a moisture-reactive composition containing said polymer composition, to methods for producing the polymer composition, and to moisture-reactive compositions containing said polymer composition. Finally, the invention relates to the use of the polymer composition as a drying agent for moisture-curing adhesives, sealants and coating agents.Type: GrantFiled: August 14, 2019Date of Patent: April 23, 2024Assignee: Covestro Intellectual Property GmbH & Co. KGInventors: Christoph Thiebes, Florian Stempfle, Klaus Lorenz, Ute Nattke
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Patent number: 11834545Abstract: A method for producing polyurethanes containing alkoxysilane groups comprises the step of reacting a compound containing at least one NCO group with a compound containing at least one Zerewitinoff-active H atom in the presence of a catalyst component, wherein the compound containing at least one NCO group and/or the compound containing at least one Zerewitinoff-active H atom contain at least one alkoxysilane group, to obtain a polyurethane containing alkoxysilane groups. The invention also relates to a polymer containing alkoxysilane groups, a method for producing a curable polymer, a curable polymer, a cured polymer, and the use thereof. The polymers contain a complex of a lanthanide with at least one beta-diketonate ligand, preferably Yb(acac)3, and are free from organic tin compounds.Type: GrantFiled: December 14, 2018Date of Patent: December 5, 2023Assignee: Covestro Deutschland AGInventors: Christoph Thiebes, Florian Stempfle, Hans-Josef Laas, Beate Baumbach, Ute Nattke
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Patent number: 11667746Abstract: The invention relates to a method for preparing polyurethanes containing alkoxysilane groups, said method comprising the step of reacting a compound containing at least one NCO group with a compound containing at least one Zerewitinoff-active H atom in the presence of a catalyst component, the at least one compound containing an NCO group and/or the compound containing at least one Zerewitinoff-active H atom containing at least one alkoxysilane group, so as to obtain a polyurethane containing alkoxysilane groups. The invention also relates to a polymer containing alkoxysilane groups, a method for preparing a curable polymer, a curable polymer, a cured polymer, and use thereof. The polyurethanes are prepared with use of a thermally labile tin catalyst.Type: GrantFiled: December 12, 2018Date of Patent: June 6, 2023Assignee: Covestro Deutschland AGInventors: Christoph Thiebes, Florian Stempele, Ute Nattke
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Publication number: 20220145149Abstract: The present invention relates to adhesives which are characterized in that they cure in the absence of water and at room temperature with the formation of isocyanurate groups.Type: ApplicationFiled: October 17, 2019Publication date: May 12, 2022Inventors: Dirk Achten, Florian Golling, Christoph Thiebes, Ute Nattke, Piet Driest
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Publication number: 20210317253Abstract: The invention relates to a polymer composition that can be produced by (a) reacting an NCO-reactive polymer having exactly one NCO-reactive group per molecule, with a diisocyanate, the molar ratio of the diisocyanate molecule to the NCO-reactive groups of the NCO-reactive polymer being at least 2:1; and (b) reacting the residual NCO groups in the reaction product from step a) with an NCO-reactive silane. The invention also relates to a moisture-reactive composition containing said polymer composition, to methods for producing the polymer composition, and to moisture-reactive compositions containing said polymer composition. Finally, the invention relates to the use of the polymer composition as a drying agent for moisture-curing adhesives, sealants and coating agents.Type: ApplicationFiled: August 14, 2019Publication date: October 14, 2021Inventors: Christoph Thiebes, Florian Stempfle, Klaus Lorenz, Ute Nattke
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Publication number: 20210309793Abstract: The invention relates to a polymer composition that can be produced by (a) reacting an NCO-reactive polymer having at least two NCO-reactive groups, with a polyisocyanate, the molar ratio of polyisocyanate molecules to NCO-reactive groups of the NCO-reactive polymer being at least 1.25:1; and (b) reacting the reaction product from step a) with an NCO-reactive silane. The invention also relates to a moisture-reactive composition containing the polymer composition and to methods for producing the polymer composition and the moisture-reactive composition. Finally, the invention relates to the use of the polymer composition as a drying agent for moisture-curing adhesives, sealants and coating agents.Type: ApplicationFiled: August 14, 2019Publication date: October 7, 2021Inventors: Christoph Thiebes, Florian Stempfle, Ute Nattke
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Publication number: 20210024796Abstract: The invention relates to layer structures containing polyaspartic primers (AG) and curable compositions based on silane-modified polymers (KS), and to a method for adhesion of flooring onto pre-treated substructures.Type: ApplicationFiled: November 19, 2018Publication date: January 28, 2021Inventors: Christoph Thiebes, Karl H. Wuehrer, Ute Nattke
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Publication number: 20200392275Abstract: The invention relates to a method for preparing polyurethanes containing alkoxysilane groups, said method comprising the step of reacting a compound containing at least one NCO group with a compound containing at least one Zerewitinoff-active H atom in the presence of a catalyst component, the at least one compound containing an NCO group and/or the compound containing at least one Zerewitinoff-active H atom containing at least one alkoxysilane group, so as to obtain a polyurethane containing alkoxysilane groups. The invention also relates to a polymer containing alkoxysilane groups, a method for preparing a curable polymer, a curable polymer, a cured polymer, and use thereof. The polyurethanes are prepared with use of a thermally labile tin catalyst.Type: ApplicationFiled: December 12, 2018Publication date: December 17, 2020Inventors: Christoph THIEBES, Florian STEMPFLE, Ute NATTKE
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Publication number: 20200392278Abstract: A method for producing polyurethanes containing alkoxysilane groups comprises the step of reacting a compound containing at least one NCO group with a compound containing at least one Zerewitinoff-active H atom in the presence of a catalyst component, wherein the compound containing at least one NCO group and/or the compound containing at least one Zerewitinoff-active H atom contain at least one alkoxysilane group, to obtain a polyurethane containing alkoxysilane groups. The invention also relates to a polymer containing alkoxysilane groups, a method for producing a curable polymer, a curable polymer, a cured polymer, and the use thereof. The polymers contain a complex of a lanthanide with at least one beta-diketonate ligand, preferably Yb(acac)3, and are free from organic tin compounds.Type: ApplicationFiled: December 14, 2018Publication date: December 17, 2020Inventors: Christoph THIEBES, Florian STEMPFLE, Hans-Josef LAAS, Beate BAUMBACH, Ute NATTKE
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Publication number: 20200339729Abstract: The invention relates to a method for preparing a silane-terminated polymer by reacting a polyol A) with a diisocyanate B), an isocyanatosilane C) and an amino silane E), wherein the polyol component A) is reacted simultaneously with a mixture of at least one diisocyanate B) and one isocyanatosilane C), and the resulting product is subsequently reacted with the amino silane E) to produce the silane-terminated polymer. The method according to the invention can be used to prepare mixed silane-terminated polymers having a low viscosity.Type: ApplicationFiled: December 20, 2018Publication date: October 29, 2020Inventors: Florian STEMPFLE, Christoph THIEBES, Ute NATTKE, Hans-Josef LAAS
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Patent number: 9920157Abstract: The present invention relates to an alkoxysilane-terminated prepolymer, characterized in that it is obtainable by reaction of at least A) a polyol, B) a compound having two or more isocyanate groups, and C) an alkoxysilane having at least an isocyanate group and/or an isocyanate-reactive group, wherein the polyol A) comprises at least a polyethercarbonatepolyol obtainable by addition of carbon dioxide and alkylene oxides onto H-functional starter molecules. The present invention further relates to a process for preparing the alkoxysilane-terminated prepolymer of the present invention and also to a composition and a multicomponent system comprising an alkoxysilane-terminated prepolymer of the present invention. The present invention further relates to a shaped article obtainable by polymerizing the alkoxysilane-terminated prepolymer of the present invention, by polymerizing a composition of the present invention or by polymerizing a multicomponent system of the present invention.Type: GrantFiled: October 23, 2013Date of Patent: March 20, 2018Assignee: Covestro Deutschland AGInventors: Jürgen Köcher, Ute Nattke
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Publication number: 20150284499Abstract: The present invention relates to an alkoxysilane-terminated prepolymer, characterized in that it is obtainable by reaction of at least A) a polyol, B) a compound having two or more isocyanate groups, and C) an alkoxysilane having at least an isocyanate group and/or an isocyanate-reactive group, wherein the polyol A) comprises at least a polyethercarbonatepolyol obtainable by addition of carbon dioxide and alkylene oxides onto H-functional starter molecules, The present invention further relates to a process for preparing the alkoxysilane-terminated prepolymer of the present invention and also to a composition and a multicomponent system comprising an alkoxysilane-terminated prepolymer of the present invention. The present invention further relates to a shaped article obtainable by polymerizing the alkoxysilane- terminated prepolymer of the present invention, by polymerizing a composition of the present invention or by polymerizing a multicomponent system of the present invention.Type: ApplicationFiled: October 23, 2013Publication date: October 8, 2015Applicant: BAYER MATERIALSCIENCE AGInventors: Jürgen Köcher, Ute Nattke