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).

  • Patent number: 12123640
    Abstract: 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: Grant
    Filed: May 27, 2021
    Date of Patent: October 22, 2024
    Assignee: BSH Hausgeräte GmbH
    Inventors: Ingo Heidenfelder, Andreas Kessler, Andreas Korte, Andreas Lindel, Daniel Naumburger, Ulrich Schlander, Ralph Staud, Thomas Tischer, Herbert Weibl, Georg Kapfer
  • Patent number: 9540597
    Abstract: 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: Grant
    Filed: October 11, 2010
    Date of Patent: January 10, 2017
    Assignee: BASF SE
    Inventors: Frank Mrzena, Ullrich Menge, Michael Schoenherr, Thomas Heidenfelder
  • Patent number: 9487845
    Abstract: 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: Grant
    Filed: May 12, 2011
    Date of Patent: November 8, 2016
    Assignee: BASF SE
    Inventors: Thomas Heidenfelder, Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert
  • Patent number: 8927669
    Abstract: 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: Grant
    Filed: January 5, 2007
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
  • Patent number: 8859106
    Abstract: 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: Grant
    Filed: March 28, 2006
    Date of Patent: October 14, 2014
    Assignee: BASF SE
    Inventors: Hermann Seyffer, Karl-Heinz Schumacher, Hans-Georg Lemaire, Ulf Baus, Thomas Subkowski, Marvin Karos, Claus Bollschweiler, Thomas Heidenfelder
  • Patent number: 8785685
    Abstract: 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: Grant
    Filed: March 26, 2012
    Date of Patent: July 22, 2014
    Assignee: BASF SE
    Inventors: Robert Baumann, Markus Christian Biel, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring
  • Patent number: 8748366
    Abstract: 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: Grant
    Filed: May 19, 2010
    Date of Patent: June 10, 2014
    Assignee: BASF SE
    Inventors: Frank Mrzena, Michael Schoenherr, Robert Heinz, Thomas Heidenfelder
  • Patent number: 8568522
    Abstract: 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: Grant
    Filed: July 18, 2007
    Date of Patent: October 29, 2013
    Assignee: BASF SE
    Inventors: Frank Klippel, Alexander Göthlich, Gunnar Schornick, Dietrich Fehringer, Thomas Heidenfelder, Helmut Witteler, Walter Bertkau
  • Patent number: 8420174
    Abstract: 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: Grant
    Filed: August 9, 2006
    Date of Patent: April 16, 2013
    Assignee: BASF SE
    Inventors: Alexander Goethlich, Frank Klippel, Gunnar Schornick, Guido Vandermeulen, Helmut Witteler, Thomas Heidenfelder, Markus Hickl, Michael Dornbusch, Konrad Roschmann, Monica Fernandez Gonzalez
  • Publication number: 20120264973
    Abstract: 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: Application
    Filed: March 26, 2012
    Publication date: October 18, 2012
    Applicant: BASF SE
    Inventors: Robert Baumann, Markus Christian Biel, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring
  • Publication number: 20120202731
    Abstract: 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: Application
    Filed: October 11, 2010
    Publication date: August 9, 2012
    Applicant: BASF SE
    Inventors: Frank Mrzena, Ulrich Menge, Michael Schoenherr, Thomas Heidenfelder
  • Publication number: 20120071381
    Abstract: 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: Application
    Filed: May 19, 2010
    Publication date: March 22, 2012
    Applicant: BASE SE
    Inventors: Frank Mrzena, Michael Schönherr, Robert Heinz, Thomas Heidenfelder
  • Publication number: 20110257431
    Abstract: 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: Application
    Filed: March 17, 2011
    Publication date: October 20, 2011
    Applicant: BASF SE
    Inventors: Robert Baumann, Markus Christian Biel, Gordon Brasche, Axel Franzke, Thomas Heidenfelder, Paul Klingelhoefer, Alfred Oftring, Marie Katrin Schroter
  • Publication number: 20110217222
    Abstract: 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: Application
    Filed: May 12, 2011
    Publication date: September 8, 2011
    Applicant: BASF SE
    Inventors: Thomas Heidenfelder, Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert
  • Patent number: 7905964
    Abstract: 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: Grant
    Filed: June 13, 2006
    Date of Patent: March 15, 2011
    Assignee: BASF SE
    Inventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Göthlich
  • Publication number: 20100273015
    Abstract: 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: Application
    Filed: January 5, 2007
    Publication date: October 28, 2010
    Applicant: BASF SE
    Inventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
  • Publication number: 20100227179
    Abstract: 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: Application
    Filed: January 3, 2007
    Publication date: September 9, 2010
    Applicant: BASF SE
    Inventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
  • Publication number: 20100187724
    Abstract: 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: Application
    Filed: June 30, 2008
    Publication date: July 29, 2010
    Applicant: BASF SE
    Inventors: Robert Heinz, Karin Flore, Lars Kissau, Thomas Heidenfelder, Tanja Seebeck, Frank Mrzena
  • Patent number: 7749337
    Abstract: 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: Grant
    Filed: June 13, 2006
    Date of Patent: July 6, 2010
    Assignee: BASF SE
    Inventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Göthlich, Jens Haas, Frank Klippel, Gunnar Schornick
  • Publication number: 20090324839
    Abstract: 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: Application
    Filed: July 18, 2007
    Publication date: December 31, 2009
    Applicant: BASF SE Patents, Trademarks and Licenses
    Inventors: Frank Klippel, Alexander Göthlich, Gunnar Schornick, Dietrich Fehringer, Thomas Heidenfelder, Helmut Witteler, Walter Bertkau