Patents by Inventor Christoph Thiebes
Christoph Thiebes 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: 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: 9403754Abstract: A catalytic process for hydrogenating aromatic di- and polyamines with the aid of a selected catalyst system is provided, which comprises a mixture of a first heterogeneous catalyst and a second heterogeneous catalyst and a nitro compound (nitrate and/or nitrite salt). The first and second heterogeneous catalyst each independently comprise a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and the metal selected for the second heterogeneous catalyst is different from the metal selected for the first heterogeneous catalyst. Hydrogenation of aromatic rings having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.Type: GrantFiled: February 4, 2015Date of Patent: August 2, 2016Assignee: Bayer MaterialScience AGInventors: Thomas E. Müller, Christoph Gürtler, Reinhard Halpaap, Christoph Thiebes, Ewa Gebauer-Henke, Isabel U. Castro Cevallos, Walter Leitner
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Patent number: 9278906Abstract: A process for hydrogenating aromatic di- and polyamines is provided comprising the steps of reacting the aromatic amine with hydrogen in the presence of a catalytic system, wherein the catalytic system comprises a heterogeneous catalyst comprising a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and a support, and wherein the catalyst system further comprises an organic nitro compound. Hydrogenation of aromatic di- and polyamines having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.Type: GrantFiled: February 4, 2015Date of Patent: March 8, 2016Assignee: Bayer MaterialScience AGInventors: Thomas E. Müller, Christoph Gürtler, Reinhard Halpaap, Ewa Gebauer-Henke, Walter Leitner, Patrick Tomkins, Christoph Thiebes
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Publication number: 20150218083Abstract: A process for hydrogenating aromatic di- and polyamines is provided comprising the steps of reacting the aromatic amine with hydrogen in the presence of a catalytic system, wherein the catalytic system comprises a heterogeneous catalyst comprising a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and a support, and wherein the catalyst system further comprises an organic nitro compound. Hydrogenation of aromatic di- and polyamines having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.Type: ApplicationFiled: February 4, 2015Publication date: August 6, 2015Inventors: Thomas E. MÜLLER, Christoph GÜRTLER, Reinhard HALPAAP, Ewa GEBAUER-HENKE, Walter LEITNER, Patrick TOMKINS, Christoph THIEBES
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Publication number: 20150218082Abstract: A catalytic process for hydrogenating aromatic di- and polyamines with the aid of a selected catalyst system is provided, which comprises a mixture of a first heterogeneous catalyst and a second heterogeneous catalyst and a nitro compound (nitrate and/or nitrite salt). The first and second heterogeneous catalyst each independently comprise a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and the metal selected for the second heterogeneous catalyst is different from the metal selected for the first heterogeneous catalyst. Hydrogenation of aromatic rings having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.Type: ApplicationFiled: February 4, 2015Publication date: August 6, 2015Inventors: Thomas E. Müller, Christoph Gürtler, Reinhard HALPAAP, Christoph THIEBES, Ewa GEBAUER-HENKE, Isabel U. CASTRO CEVALLOS, Walter LEITNER
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Patent number: 7517559Abstract: The present invention relates to inner coatings of metal food containers and packaging and to a process for their production. The coatings are applied to the inside of at least a portion of the surface area of containers that are in direct contact with foods or other consumable products and subsequently cured. The coatings include a) at least one polyisocyanate containing an average of at least two NCO groups per molecule, at least 95% of the NCO groups being blocked with a blocking agent, and b) at least one polyhydroxyl compound containing an average of at least two hydroxyl groups per molecule that react with NCO groups.Type: GrantFiled: October 20, 2004Date of Patent: April 14, 2009Assignee: Bayer MaterialScience AGInventors: Christoph Thiebes, Beate Baumbach, Eduard Hänsel, Wolfram Küttner, Christian Wamprecht
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Patent number: 7087676Abstract: Blocked polyisocyanates and one-component stoving systems containing these blocked polyisocyanates, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers, wherein blocked polyisocyanates are prepared by reacting polyisocyanates with secondary amines corresponding to the formula wherein R1—R4 can be identical or different and denote hydrogen, C1–C6-alkyl or cycloalkyl, R5 denotes C1–C10-alkyl, C3–C10-cycloalkyl, y denotes a number from 2 to 8, and B represents wherein R6–R8 can be identical or different and independently of one another denote C1–6-alkyl and/or C3–C6-cycloalkyl, R9 denotes hydrogen or C1–6-alkyl or C3–C6-cycloalkyl.Type: GrantFiled: June 23, 2004Date of Patent: August 8, 2006Assignee: Bayer Materialscience AGInventors: Jan Mazanek, Reinhard Halpaap, Markus Mechtel, Thomas Klimmasch, Christoph Thiebes
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Patent number: 7074852Abstract: Blocked polyisocyanates and one-component stoving systems containing these blocked polyisocyanates, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are derived from polyisocyanates reacted with secondary amines and cationic, anionic and/or nonionic hydrophilizing agents such that they are incorporated into the polyisocyanate at a ratio of from 20:1 to 1:1, wherein the blocking agents correspond to the formula R1–R4 can be identical or different and independently of one another denote hydrogen, C1–C6-alkyl or C3–C6-cycloalkyl, R5 denotes C1–C10-alkyl, C3–C10-cycloalkyl, and B represents ?wherein R6–R8 can be identical or different and independently of one another denote C1–C6-alkyl and/or C1–C6-cycloalkyl, R9 denotes hydrogen or C3–C6-alkyl or C3–C6-cycloalkyl.Type: GrantFiled: June 23, 2004Date of Patent: July 11, 2006Assignee: Bayer MaterialScience AGInventors: Jan Mazanek, Christoph Thiebes, Jürgen Meixner, Olaf Fleck, Heino Müller
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Publication number: 20050129847Abstract: The present invention relates to inner coatings of metal food containers and packaging and to a process for their production. The coatings are appied to the inside of at least a portion of the surface area of containers that are in direct contact with foods or other consumable products and subsequently cured. The coatings include a) at least one polyisocyanate containing an average of at least two NCO groups per molecule, at least 95% of the NCO groups being blocked with a blocking agent, and b) at least one polyhydroxyl compound containing an average of at least two hydroxyl groups per molecule that react with NCO groups.Type: ApplicationFiled: October 20, 2004Publication date: June 16, 2005Inventors: Christoph Thiebes, Beate Baumbach, Eduard Hansel, Wolfram Kuttner, Christian Wamprecht
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Publication number: 20050107565Abstract: Storage-stable blocked polyisocyanates prepared by reacting one or more polyisocyanates with one or more biuretizing agents and optionally, catalysts such that in the blocked end product there are 5-45 equivalent percent of biuret groups according to formula (I) based on the sum total of all free and blocked NCO groups; optionally modifying the resulting biuret polyisocyanates with the aid of isocyanate-reactive compounds and/or catalysts, with further reaction of free NCO groups; and subsequently blocking at least 95 mol percent of the remaining free NCO groups with a blocking agent according to the formula R1R2NH, where R1 and R2 independently of one another are aliphatic or cycloaliphatic C1-C12 alkyl radicals. The blocked polyisocyanates can be used to make polyurethane polymers and coating compositions, which can be used to coat substrates.Type: ApplicationFiled: October 15, 2004Publication date: May 19, 2005Inventors: Christoph Thiebes, Reinhard Halpaap, Beate Baumbach, Dieter Mager, Christian Fussel
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Patent number: 6884899Abstract: The present invention relates to a process for preparing 1-amino-4-hydroxyanthraquinones of the formula (I) wherein R is an aliphatic or aromatic radical, by reacting 1,4-dihydroxyanthraquinone, optionally as a mixture with 2,3-dihydro-1,4-dihydroxyanthraquinone, with aliphatic or aromatic amines in the presence of N-methyl-2-pyrrolidone.Type: GrantFiled: August 15, 2002Date of Patent: April 26, 2005Assignee: Bayer AktiengesellschaftInventors: Christoph Thiebes, Josef-Walter Stawitz
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Publication number: 20050070683Abstract: Storage-stable Polyisocyanates based on aliphatic and/or cycloaliphatic diisocyanates including from 1 to 20% by weight of alkylamino groups of the formula R1R2N as a constituent of biuret groups, wherein R1 and R2 independently of one another are aliphatic or cycloaliphatic C1-C12 alkyl radicals, and where at least 95 mol % of the isocyanate groups are blocked with at least one blocking agent, and the polyisocyanates contain from 4.0 to 21.0% by weight of blocked and free NCO groups (calculated as NCO, molecular weight=42). The polyisocyanates are used to produce coating compositions, coatings, and coated substrates.Type: ApplicationFiled: May 17, 2004Publication date: March 31, 2005Inventors: Christoph Thiebes, Frank Richter, Reinhard Halpaap, Beate Baumbach, Dieter Mager, Christian Fussel
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Patent number: 6852873Abstract: Process for preparing compounds of the formula (I) where R1, R2 and R3 are independently hydrogen, alkyl or cycloalkyl, characterized in that an aldehyde of the formula (II) is reacted with CH2(CN)2 in the presence of butanol.Type: GrantFiled: August 19, 2002Date of Patent: February 8, 2005Assignee: Bayer AktiengesellschaftInventors: Josef-Walter Stawitz, Stephan Michaelis, Christoph Thiebes
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Publication number: 20040266970Abstract: Blocked polyisocyanates and one-component stoving systems containing these, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are derived from polyisocyanates reacted with secondary amines and cationic, anionic and/or nonionic hydrophilizing agents such that they are incorporated into the polyisocyanate at a ratio of from 20:1 to 1:1.Type: ApplicationFiled: June 23, 2004Publication date: December 30, 2004Inventors: Jan Mazanek, Christoph Thiebes, Jurgen Meixner, Olaf Fleck, Heino Muller
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Publication number: 20040266969Abstract: Blocked polyisocyanates and one-component stoving systems containing these, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are prepared by reacting polyisocyanates with secondary amines.Type: ApplicationFiled: June 23, 2004Publication date: December 30, 2004Inventors: Jan Mazanek, Reinhard Halpaap, Markus Mechtel, Thomas Klimmasch, Christoph Thiebes
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Patent number: 6833455Abstract: Disclosed herein are bridged perinones/quinophthalones of the general formula (I) or tautomeric forms thereof where X1, X2, Ar1 Ar2 and B are as described herein and are particularly characterized in that the bridging B is a radical of the formula —T1—W—T2—, where T1 and T2 are independently O or S and W is alkylene, especially C1-C6-alkylene, C6-C10-arylene, especially phenylene or cycloalkylene, which are each optionally substituted or is the radical of the formula (a) where the phenyl rings are optionally substituted and A is a radical of the formula O, S, SO, SO2 or CO, optionally substituted alkylene, or optionally substituted cycloalkylene, said alkylene or cycloalkylene being attached to the adjacent phenyl rings itself or else via its substitutents, or W is a radical of the formulae where s and t are independently from 1 to 6, the ends of the radical B each being attached to an aromatic carbon atom of the two radicals Ar1Type: GrantFiled: November 22, 2002Date of Patent: December 21, 2004Assignee: Bayer AktiengesellschaftInventors: Christoph Thiebes, Josef-Walter Stawitz, Ulrich Feldhues
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Publication number: 20040097687Abstract: The present invention relates to novel storage-stable blocked polyisocyanates, to a process for their preparation and to their use in the production of polyurethane materials and coatings.Type: ApplicationFiled: November 14, 2003Publication date: May 20, 2004Inventors: Christoph Thiebes, Hans-Josef Laas, Reinhard Halpaap, Dorota Greszta-Franz
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Publication number: 20040072931Abstract: Use of a compound according to one of the formulae I to III 1Type: ApplicationFiled: June 20, 2003Publication date: April 15, 2004Inventors: Christoph Thiebes, Christian Fussel, Reinhard Halpaap, Beate Baumbach, Joachim Petzoldt, Karsten Danielmeier