Patents by Inventor Alexander Goethlich
Alexander Goethlich 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: 8568522Abstract: Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers.Type: GrantFiled: July 18, 2007Date of Patent: October 29, 2013Assignee: BASF SEInventors: Frank Klippel, Alexander Göthlich, Gunnar Schornick, Dietrich Fehringer, Thomas Heidenfelder, Helmut Witteler, Walter Bertkau
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Patent number: 8563128Abstract: Preparation for and a method of applying corrosion control coats to metallic surfaces, particularly the surfaces of metallic structures or metal constructions, the preparation comprising at least one binder system curable under atmospheric conditions, a dicarboxylic acid-olefin copolymer, and a finely divided filler, pigment or dye. Coated metallic surface obtainable by means of the method, especially the surface of metallic structures or metal constructions.Type: GrantFiled: January 24, 2006Date of Patent: October 22, 2013Assignee: BASF SEInventors: Alexander Göthlich, Guido Vandermeulen, Konrad Roschmann, Gerhard Fischer, Helmut Witteler, Monica Fernandez Gonzalez
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Patent number: 8420174Abstract: The present invention relates to a composition for coating metallic surfaces, comprising a binder component; a corrosion inhibitor polymer based on an ethylenically monocarboxylic and dicarboxylic acid and, if appropriate, further ethylenical monomers, a solvent component, and, if appropriate, crosslinkable components, and also pigment/filler components. The invention further relates to processes for its preparation and also to methods of coating a metallic surface using the composition, to coated metallic surfaces thus obtained, and to the use of the composition as a primer, particularly in coil coating or in atmospheric corrosion control. After drying, the applied layer preferably has a thickness of at least 3.1 ?m and is therefore thicker than a typical pretreatment layer.Type: GrantFiled: August 9, 2006Date of Patent: April 16, 2013Assignee: BASF SEInventors: Alexander Goethlich, Frank Klippel, Gunnar Schornick, Guido Vandermeulen, Helmut Witteler, Thomas Heidenfelder, Markus Hickl, Michael Dornbusch, Konrad Roschmann, Monica Fernandez Gonzalez
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Patent number: 8420219Abstract: Method of applying corrosion control coats, especially integrated pretreatment layers or coats for atmospheric corrosion control, to metallic surfaces, using copolymers comprising as monomeric building blocks 20% to 70% by weight of monomers containing nitrogen heterocycles, 10% to 50% by weight of monomers containing acidic groups, 10% to 50% by weight of vinylaromatic monomers, and optionally 0% to 25% by weight of further monomers. Copolymers of the stated composition, and also preparations for applying corrosion control coats.Type: GrantFiled: April 18, 2007Date of Patent: April 16, 2013Assignee: BASF SEInventors: Guido Vandermeulen, Alexander Göthlich, Markus Hickl, Michael Dornbusch, Monica Fernandez Gonzalez, Konrad Roschmann, Hermann Bergmann
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Patent number: 8273412Abstract: Process for applying integrated pretreatment layers to metallic surfaces, particularly the surfaces of coil metals, by treatment with a composition comprising at least one binder, crosslinker, a finely divided inorganic filler, and compounds containing at least two thioamide groups or containing one thioamide group and at least one functional group. Integrated pretreatment layer obtainable by the process.Type: GrantFiled: January 24, 2006Date of Patent: September 25, 2012Assignee: BASF AktiengesellschaftInventors: Monica Fernandez Gonzalez, Markus Hickl, Cordula Mock-Knoblauch, Manfred Essig, Ingolf Hennig, Alexander Goethlich
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Patent number: 8273555Abstract: Provided is a process for esterifying or transesterifying side chains in polymers, which involves esterifying or transesterifying the carboxyl group having the R4 radical of a copolymer obtained by polymerizing a (meth)acrylate of formula (I), and a monomer of formula (II): wherein R1 and R3 are independently H or CH3, R2 and R4 are independently H or an alkyl radical which is optionally substituted by functional groups such as acryloyl, ether, amino, epoxy, halogen or sulfonic acid groups, and n is from 1 to 40, with an alcohol in the presence of an enzyme which catalyzes the esterifying or transesterifying. Further provided is the esterified or transesterified polymer product and its use.Type: GrantFiled: November 24, 2006Date of Patent: September 25, 2012Assignee: BASF AktiengesellschaftInventors: Dietmar Haering, Lidcay Herrera Taboada, Bernhard Hauer, Thomas Friedrich, Alexander Goethlich
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Patent number: 8241745Abstract: The present invention relates to a substantially chromium-free process for passivating metallic surfaces of Zn, Zn alloys, Al or Al alloys by treating the surface with an acidic aqueous formulation which comprises at least one substantially noncrosslinked, water-soluble polymer or copolymer containing at least 50% by weight of (meth)acrylic acid units and comprises water or an aqueous solvent mixture comprising at least 50% by weight of water, and by further treating the surface with at least one water-soluble crosslinker comprising at least 2 crosslinking groups selected from the group consisting of azirane, oxirane, and thiirane groups. The invention further relates to passivating layers obtainable by means of the process and to a formulation suitable for this process.Type: GrantFiled: October 15, 2004Date of Patent: August 14, 2012Assignee: BASF SEInventors: Frank Dietsche, Frank Klippel, Matthias Klüglein, Alexander Göthlich
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Patent number: 8002119Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used.Type: GrantFiled: January 30, 2007Date of Patent: August 23, 2011Assignee: BASF SEInventors: Karl-Heinz Buechner, Stephan Nied, Alexander Goethlich, Frank Klippel, Gunnar Schornick
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Patent number: 7981954Abstract: Methods for controlling atmospheric corrosion of a metallic surface including coating the metallic surface with a coating material containing at least one compound having at least one thioamide group.Type: GrantFiled: January 26, 2006Date of Patent: July 19, 2011Assignee: BASF AktiengesellschaftInventors: Gerhard Fischer, Monica Fernandez Gonzalez, Marc Schroeder, Konrad Roschmann, Alexander Goethlich, Hermann Bergmann, Guido Vandermeulen
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Patent number: 7905964Abstract: Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.Type: GrantFiled: June 13, 2006Date of Patent: March 15, 2011Assignee: BASF SEInventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Göthlich
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Publication number: 20100171070Abstract: The present invention relates to a process for preparing a phosphorus-containing polymer, comprising the steps of (i) copolymerizing at least (a) monoethylenically unsaturated dicarboxylic anhydrides having from 4 to 6 carbon atoms with (b) olefins of the formula CH2?C(R1)R2 where R1 is H or CH3 and R2 is H, CH3, C2H5 or phenyl; (ii) reacting the polymer formed in step (i) with at least one primary or secondary phosphorus-containing amine or a phosphorus-containing alcohol and (iii) at least partly ring-opening the remaining anhydride groups. The invention further relates to phosphorus-containing polymers obtainable from this process, and to processes for preventing Ba/Sr scale with the aid of the polymer.Type: ApplicationFiled: December 17, 2007Publication date: July 8, 2010Applicant: BASF SE Patents, Trademarks and LicensesInventors: Lidcay Herrera Taboada, Marcus Guzmann, Karin Neubecker, Alexander Göthlich
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Patent number: 7749337Abstract: Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.Type: GrantFiled: June 13, 2006Date of Patent: July 6, 2010Assignee: BASF SEInventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Göthlich, Jens Haas, Frank Klippel, Gunnar Schornick
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Publication number: 20090324839Abstract: Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers.Type: ApplicationFiled: July 18, 2007Publication date: December 31, 2009Applicant: BASF SE Patents, Trademarks and LicensesInventors: Frank Klippel, Alexander Göthlich, Gunnar Schornick, Dietrich Fehringer, Thomas Heidenfelder, Helmut Witteler, Walter Bertkau
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Publication number: 20090029155Abstract: Preparation for and a method of applying corrosion control coats to metallic surfaces, particularly the surfaces of metallic structures or metal constructions, the preparation comprising at least one binder system curable under atmospheric conditions, a dicarboxylic acid-olefin copolymer, and a finely divided filler, pigment or dye. Coated metallic surface obtainable by means of the method, especially the surface of metallic structures or metal constructions.Type: ApplicationFiled: January 24, 2006Publication date: January 29, 2009Applicant: BASF AKTIENGESELLSCHAFTInventors: Alexander Göthlich, Guido Vandermeulen, Konrad Roschmann, Gerhard Fischer, Helmut Witteler, Monica Fernandez Gonzalez