Patents by Inventor Katharina Dauth

Katharina Dauth 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).

  • Publication number: 20220332998
    Abstract: The invention relates to the use of a polymeric-inorganic nanoparticle composition as a heat transfer fluid in battery or other electrical equipment systems. The electrical equipment can be in particular electric batteries, electric motors, electric vehicle transmissions, electric transformers, electric capacitors, fluid-filled transmission lines, fluid-filled power cables, computers and power electronics such as electric power converters.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 20, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Ulrich Fischer, Daniel Neß, Stephan Wieber, Michael Gerhard Hagemann, Günter Schmitt, Jennifer Schrantz, Katharina Dauth, Can Metehan Turhan
  • Publication number: 20220289572
    Abstract: A dispersion may include 1 to 50% by weight of lithium metal phosphate of a general formula Li1+aM2?bNc(PO4)3+d, wherein M is Ti, Zr or Hf; N is a metal other than Li and M; 0?a?0.6, 0?b?0.6, 0?c?0.6, 0?d?0.8; and 50 to 99% by weight of trialkyl phosphate. A coating composition may include such a dispersion and such dispersions can be used in lithium ion batteries.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Daniel NESS, Ryo TAKATA, Daniel ESKEN, Katharina DAUTH
  • Patent number: 10920084
    Abstract: Aqueous dispersion containing a hydrophilic metal oxide powder comprising a metal oxide and a surface modification of the metal oxide, wherein a) the metal oxide is selected from the group consisting of TiO2, ZrO2, SiO2, Al2O3, Fe2O3, Fe3O4, Sb2O3, WO3, CeO2 and mixed oxides thereof and b) the surface modification b1) comprises silicon atoms and aluminum atoms and b2) the silicon atoms are at least partly bonded to a hydrocarbon radical via a C atom and b3) the Al/Si molar ratio of the surface modification is 1:2-1:20.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 16, 2021
    Assignee: EVONIK OPERATIONS GMBH
    Inventors: Wolfgang Lortz, Ulrich Fischer, Daniel Ness, Gabriele Bergmann, Katharina Dauth
  • Publication number: 20180194947
    Abstract: Aqueous dispersion containing a hydrophilic metal oxide powder comprising a metal oxide and a surface modification of the metal oxide, wherein a) the metal oxide is selected from the group consisting of TiO2, ZrO2, SiO2, Al2O3, Fe2O3, Fe3O4, Sb2O3, WO3, CeO2 and mixed oxides thereof and b) the surface modification b1) comprises silicon atoms and aluminum atoms and b2) the silicon atoms are at least partly bonded to a hydrocarbon radical via a C atom and b3) the Al/Si molar ratio of the surface modification is 1:2-1:20.
    Type: Application
    Filed: June 28, 2016
    Publication date: July 12, 2018
    Inventors: Wolfgang LORTZ, Ulrich FISCHER, Daniel NESS, Gabriele BERGMANN, Katharina DAUTH
  • Publication number: 20110036269
    Abstract: Surface-modified agglomerate of indium tin oxohydrate with a proportion of indium of 80 to 98.9% by weight, of tin of 2 to 20% by weight and of carbon of 0.01 to 1% by weight. Process for preparing a surface-modified agglomerate of indium tin oxide, in which the surface-modified agglomerate of indium tin oxohydrate is dried under air at temperatures of more than 150° C. and less than 310° C., and is then calcined under reducing conditions. Surface-modified agglomerate of indium tin oxide obtainable by this process. Process for preparing a surface-modified powder of indium tin oxide and a dispersion thereof, in which the surface-modified agglomerate and one or more solvents are combined to give a mixture, the mixture is converted to a dispersion by means of a dispersing unit and liquid constituents are optionally removed from the dispersion in order to obtain a powder.
    Type: Application
    Filed: April 16, 2009
    Publication date: February 17, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Sven Hill, Willibald Wombacher, Katharina Dauth
  • Publication number: 20100171069
    Abstract: A dispersion comprising particles of cerium oxide and sheet silicate and one or more aminocarboxylic acids and/or salts thereof, where the zeta potential of sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean diameter of the•cerium oxide particles is not more than 200 nm•sheet silicate particles is less than 100 nm, the content, based in each case on the total amount of the dispersion, of•cerium oxide particles is from 0.1 to 5% by weight•sheet silicate particles is from 0.01 to 10% by weight and•aminocarboxylic acid or salt thereof is from 0.01 to 5% by weight and the pH of the dispersion is from 7.5 to 10.5.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 8, 2010
    Applicant: Evonik Degussa GmbH
    Inventors: Michael Kroell, Stefan Heberer, Katharina Dauth
  • Publication number: 20100163785
    Abstract: A dispersion comprising particles of cerium oxide and colloidal silicon dioxide and in each case one or more aminocarboxylic acids and/or salts thereof, where the zeta potential of the silicon dioxide particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean diameter of the • cerium oxide particles is not more than 200 nm silicon dioxide particles is less than 100 nm, the content, based in each case on the total amount of the dispersion, of • cerium oxide particles is from 0.1 to 5% by weight silicon dioxide particles is from 0.01 to 10% by weight and • aminocarboxylic acid or salt thereof is from 0.01 to 5% by weight and —the pH of the dispersion is from 7.5 to 10.5.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 1, 2010
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Michael Kroell, Stefan Heberer, Katharina Dauth
  • Publication number: 20100102268
    Abstract: A dispersion comprising cerium oxide particles and colloidal silicon dioxide particles, where—the zeta potential of the silicon dioxide particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, and—the mean particle diameter of the cerium oxide particles is not more than 200 nm and that of the silicon dioxide particles is not more than 100 nm, the mean particle diameter of the cerium oxide particles being greater than that of the silicon dioxide particles—the cerium oxide/silicon dioxide weight ratio is from 1.1:1 to 100:1 and—the pH of the dispersion is from 7.5 to 10.5.
    Type: Application
    Filed: November 9, 2007
    Publication date: April 29, 2010
    Applicant: Evonik Degussa GmbH
    Inventors: Michael Kroell, Stefan Heberer, Katharina Dauth
  • Publication number: 20100083584
    Abstract: A dispersion comprising cerium oxide particles and particles of one or more sheet silicates, where the zeta potential of the sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean particle diameter of the cerium oxide particles and the mean particle diameter of the sheet silicate particles is not more than 100 nm and the pH of the dispersion is from 7.5 to 10.5, preferably from 9 to 10.
    Type: Application
    Filed: December 19, 2007
    Publication date: April 8, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Michael Kroell, Stefan Heberer, Katharina Dauth