Patents by Inventor Thomas Heidenfelder
Thomas Heidenfelder 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: 12123640Abstract: An interior compartment or container for a domestic refrigeration appliance has a side wall on which an elongate bearing rib for a bearing panel is integrated. The bearing rib extends in the depthwise direction of the interior compartment and extends over at least half the depth of the side wall. The bearing rib has an upper bearing side, which merges with the side wall by way of a first rounding and merges with an underside of the bearing rib by way of a second rounding, which is located opposite the first as seen in the widthwise direction. The underside merges at its lower end with the side wall. In a cross section of the bearing rib taken in a direction perpendicular to the longitudinal axis, a vertical-dimension ratio, measured in the heightwise direction, between an underside vertical dimension and an upper-side vertical dimension is between 3.5 and 4.5.Type: GrantFiled: May 27, 2021Date of Patent: October 22, 2024Assignee: BSH Hausgeräte GmbHInventors: Ingo Heidenfelder, Andreas Kessler, Andreas Korte, Andreas Lindel, Daniel Naumburger, Ulrich Schlander, Ralph Staud, Thomas Tischer, Herbert Weibl, Georg Kapfer
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Patent number: 9540597Abstract: A process for the preparation of a powder comprising one or more complexing agent salts of the general formula comprises atomizing an aqueous solution comprising the one or more complexing agent salts in the presence of a crystalline fine dust of the same complexing agent salts and a drying step, wherein the concentration of the one or more complexing agent salt is from 10 to 80% by weight, based on the total weight of the aqueous solution, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, and the fraction of the crystalline fine dust is from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.Type: GrantFiled: October 11, 2010Date of Patent: January 10, 2017Assignee: BASF SEInventors: Frank Mrzena, Ullrich Menge, Michael Schoenherr, Thomas Heidenfelder
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Patent number: 9487845Abstract: Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.Type: GrantFiled: May 12, 2011Date of Patent: November 8, 2016Assignee: BASF SEInventors: Thomas Heidenfelder, Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert
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Patent number: 8927669Abstract: Copolymers comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more compounds of the general formula I (c) if appropriate, one or more alkenylphosphonic diesters, (d) if appropriate, one or more other free-radically copolymerizable comonomers, whose variables are defined as follows: R1 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R2 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R3 is selected from hydrogen, phenyl, benzyl, and unbranched and branched C1-C10-alkyl and unbranched and branched hydroxy-C2-C10-alkyl, as free acid or partially or completely neutralized with alkali metal, alkaline earth metal, ammonia or organic amine.Type: GrantFiled: January 5, 2007Date of Patent: January 6, 2015Assignee: BASF SEInventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
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Patent number: 8859106Abstract: A multilayered composite or coated substrate, comprising compounds of which at least 40% by weight are composed of alpha-amino acids linked via peptide bonds as adhesion promoters between at least two adjacent layers of the composite or between the coating and the substrate.Type: GrantFiled: March 28, 2006Date of Patent: October 14, 2014Assignee: BASF SEInventors: Hermann Seyffer, Karl-Heinz Schumacher, Hans-Georg Lemaire, Ulf Baus, Thomas Subkowski, Marvin Karos, Claus Bollschweiler, Thomas Heidenfelder
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Patent number: 8785685Abstract: The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.Type: GrantFiled: March 26, 2012Date of Patent: July 22, 2014Assignee: BASF SEInventors: Robert Baumann, Markus Christian Biel, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring
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Patent number: 8748366Abstract: A process for the preparation of a spray-dried powder containing at least one glycine-N,N-diacetic acid compound of a formula MOOC—CHR—N(CH2COOM)2, where R is a C1-12-alkyl and M is an alkali metal, the process including: preparing an aqueous solution containing the glycine-N,N-diacetic acid compound; concurrently passing the aqueous solution and air into a spray-drying apparatus; atomizing the aqueous solution by feeding the aqueous solution onto a rotating disk or by compressing the aqueous solution with a pump to a pressure of ?20 bar absolute, to obtain fine liquid droplets; and drying the droplets, to obtain the spray-dried powder, where a temperature gradient between the aqueous solution and the air is in a range from 70 to 350° C., and a content of the glycine-N,N-diacetic acid compound in the aqueous solution is ?84% by weight, based on a total weight of the dry mass.Type: GrantFiled: May 19, 2010Date of Patent: June 10, 2014Assignee: BASF SEInventors: Frank Mrzena, Michael Schoenherr, Robert Heinz, Thomas Heidenfelder
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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: 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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Publication number: 20120264973Abstract: The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.Type: ApplicationFiled: March 26, 2012Publication date: October 18, 2012Applicant: BASF SEInventors: Robert Baumann, Markus Christian Biel, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring
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Publication number: 20120202731Abstract: A process is proposed for the preparation of a powder comprising one or more complexing agent salts of the general formula starting from an aqueous solution comprising the one or more complexing agent salts in a concentration of from 10 to 80% by weight, based on the total weight of the aqueous solution, in a spray-drying process, comprising an atomization step and a drying step, wherein the atomization step is carried out with the addition of crystalline fine dust of the same complexing agent salt(s) as are present in the aqueous solution, or one or more complexing agent salts different therefrom, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, in a fraction of from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.Type: ApplicationFiled: October 11, 2010Publication date: August 9, 2012Applicant: BASF SEInventors: Frank Mrzena, Ulrich Menge, Michael Schoenherr, Thomas Heidenfelder
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Publication number: 20120071381Abstract: A process for the preparation of a spray-dried powder containing at least one glycine-N,N-diacetic acid compound of a formula MOOC—CHR—N(CH2COOM)2, where R is a C1-12-alkyl and M is an alkali metal, the process including: preparing an aqueous solution containing the glycine-N,N-diacetic acid compound; concurrently passing the aqueous solution and air into a spray-drying apparatus; atomizing the aqueous solution by feeding the aqueous solution onto a rotating disk or by compressing the aqueous solution with a pump to a pressure of ?20 bar absolute, to obtain fine liquid droplets; and drying the droplets, to obtain the spray-dried powder, where a temperature gradient between the aqueous solution and the air is in a range from 70 to 350° C., and a content of the glycine-N,N-diacetic acid compound in the aqueous solution is ?84% by weight, based on a total weight of the dry mass.Type: ApplicationFiled: May 19, 2010Publication date: March 22, 2012Applicant: BASE SEInventors: Frank Mrzena, Michael Schönherr, Robert Heinz, Thomas Heidenfelder
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Publication number: 20110257431Abstract: The present invention relates to a process for preparing aminocarboxylates, proceeding from amines, by employing a reaction sequence composed of ethoxylation to amino alcohols and subsequent oxidative dehydrogenation to the corresponding aminocarboxylates, especially the alkali metal or alkaline earth metal salts of the complexing agents MGDA (methylglycinediacetic acid), EDTA (ethylenediaminetetra-acetic acid) and GLDA (glutamic acid diacetic acid) or the free acids thereof.Type: ApplicationFiled: March 17, 2011Publication date: October 20, 2011Applicant: BASF SEInventors: Robert Baumann, Markus Christian Biel, Gordon Brasche, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring, Marie Katrin Schroter
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Publication number: 20110217222Abstract: Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.Type: ApplicationFiled: May 12, 2011Publication date: September 8, 2011Applicant: BASF SEInventors: Thomas Heidenfelder, Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert
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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: 20100273015Abstract: Copolymers comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more compounds of the general formula I (c) if appropriate, one or more alkenylphosphonic diesters, (d) if appropriate, one or more other free-radically copolymerizable comonomers, whose variables are defined as follows: R1 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R2 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R3 is selected from hydrogen, phenyl, benzyl, and unbranched and branched C1-C10-alkyl and unbranched and branched hydroxy-C2-C10-alkyl, as free acid or partially or completely neutralized with alkali metal, alkaline earth metal, ammonia or organic amine.Type: ApplicationFiled: January 5, 2007Publication date: October 28, 2010Applicant: BASF SEInventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
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Publication number: 20100227179Abstract: A method of treating surfaces using one or more than one copolymer (A) comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more alkenylphosphonic diesters, (c) if appropriate, one or more other free-radically copolymerizable comonomers.Type: ApplicationFiled: January 3, 2007Publication date: September 9, 2010Applicant: BASF SEInventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
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Publication number: 20100187724Abstract: A process is proposed for producing a free-flowing and storage-stable solid comprising essentially ?-alanine-N,N-diacetic acid and/or one or more derivatives of ?-alanine-N,N-diacetic acid proceeding from a powder of ?-alanine-N,N-diacetic acid and/or one or more derivatives of ?-alanine-N,N-diacetic acid by a. compacting the powder of ?-alanine-N,N-diacetic acid on a roller press to obtain slugs, b. crushing the slugs and c. screening the crushed slugs, which comprises performing the compaction on the roller press with addition of polyethylene glycol with a melting point greater than 35° C.Type: ApplicationFiled: June 30, 2008Publication date: July 29, 2010Applicant: BASF SEInventors: Robert Heinz, Karin Flore, Lars Kissau, Thomas Heidenfelder, Tanja Seebeck, Frank Mrzena
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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