Patents by Inventor Angela Ruttgerodt

Angela Ruttgerodt 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).

  • Aqueous dispersion of hydrophobized silicon dioxide powder comprising a dispersing agent
    Patent number: 7645335
    Abstract: Aqueous dispersion which comprises hydrophobized silicon dioxide powder with a content of between 5 and 50 wt. % and which comprises at least one compound of the general formula R & supl; —COO—(CH2-CH(Ph)—O)a-(CnH2n-xR2x-O)b-R3 (I). It is prepared by dispersing the hydrophobic silicon dioxide powder, dispersing agent and optionally pH-regulating substances and further additives in an aqueous medium. It can be employed as an additive to waterborne fillers in the automobile industry, as a coating constituent in can and coil coating processes, as an additive in water-based UV-curable formulations e.g. for wood preservation and as a constituent of protective lacquer films.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: January 12, 2010
    Assignees: Degussa AG, Goldschmidt GmbH
    Inventors: Wolfgang Lortz, Christoph Batz-Sohn, Gabriele Perlet, Werner Will, Kathrin Lehmann, Angela Rüttgerodt
  • Dispersants for preparing aqueous pigment pastes
    Patent number: 7442724
    Abstract: The invention relates to the use of copolymers with styrene-oxide-based, vinyl-functionalized polyethers for preparing aqueous pigment preparations.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: October 28, 2008
    Assignee: Goldschmidt GmbH
    Inventors: Jutta Esselborn, Philippe Favresse, Kathrin Lehmann, Ute Linke, Angela Rüttgerodt, Stefan Silber
  • High-concentration aqueous dispersions comprising hydrophilic microfine metal oxide particles and dispersion auxiliaries
    Patent number: 7399487
    Abstract: Aqueous dispersions comprising microfine metal oxide particles and dispersion auxiliaries, wherein, as dispersion auxiliaries, at least one of the compounds of the general formula (I) in which M is hydrogen, monovalent or divalent metal cation, ammonium ion, organic amine radical; a is 1, or where M is a divalent metal cation, is ½; X is likewise —OMa or —O—(CpH2pO)q—Rl where R1?H, aliphatic hydrocarbon radical having 1-20 carbon atoms, cycloaliphatic hydrocarbon radical having 5 to 8 carbon atoms, optionally substituted aryl radical having 6 to 14 carbon atoms, p=2 to 4, q=0 to 100, —NHR2 and/or —NR22 where R2?R1 or —CO—NH2; Y is O, NR2; A1 is ethylene radical, propylene radical, isopropylene radical, butylene radical; m is 10 to 30; n is 0 to 50; and k is 10 to 30, where the summ+k is in the range from 20 to 60, is co-used.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: July 15, 2008
    Assignee: Goldschmidt GmbH
    Inventors: Christoph Batz-Sohn, Petra Brandt, Thomas Dietz, Steffen Hasenzahl, Klaus Jenni, Kathrin Lehmann, Ralf Mathiak, Angela Rüttgerodt
  • Aqueous dispersion of hydrophobized silicon dioxide powder comprising a dispersing agent
    Publication number: 20070145327
    Abstract: Aqueous dispersion which comprises hydrophobized silicon dioxide powder with a content of between 5 and 50 wt. % and which comprises at least one compound of the general formula R & supl; —COO—(CH2-CH(Ph)—O)a-(CnH2n-xR2xO)b-R3 (I). It is prepared by dispersing the hydrophobic silicon dioxide powder, dispersing agent and optionally pH-regulating substances and further additives in an aqueous medium. It can be employed as an additive to waterborne fillers in the automobile industry, as a coating constituent in can and coil coating processes, as an additive in water-based UV-curable formulations e.g. for wood preservation and as a constituent of protective lacquer films.
    Type: Application
    Filed: March 26, 2004
    Publication date: June 28, 2007
    Applicants: Degussa AG, Goldschmidt GmbH
    Inventors: Wolfgang Lortz, Christoph Batz-Sohn, Gabriele Perlet, Werner Will, Kathrin Lehmann, Angela Ruttgerodt
  • Dispersants for preparing aqueous pigment pastes
    Publication number: 20050085563
    Abstract: The invention relates to the use of copolymers with styrene-oxide-based, vinyl-functionalized polyethers for preparing aqueous pigment preparations.
    Type: Application
    Filed: October 19, 2004
    Publication date: April 21, 2005
    Inventors: Jutta Esselborn, Philippe Favresse, Kathrin Lehmann, Ute Linke, Angela Ruttgerodt, Stefan Silber
  • High-concentration aqueous dispersions comprising hydrophilic microfine metal oxide particles and dispersion auxiliaries
    Publication number: 20030229172
    Abstract: Aqueous dispersions comprising microfine metal oxide particles and dispersion auxiliaries, wherein, as dispersion auxiliaries, at least one of the compounds of the general formula (I) 1
    Type: Application
    Filed: June 6, 2003
    Publication date: December 11, 2003
    Applicants: Goldschmidt AG, Degussa AG
    Inventors: Christoph Batz-Sohn, Petra Brandt, Thomas Dietz, Steffen Hasenzahl, Klaus Jenni, Kathrin Lehmann, Ralf Mathiak, Angela Ruttgerodt
  • High-concentration aqueous dispersions comprising hydrophobic microfine metal oxide particles and dispersion auxiliaries
    Publication number: 20030228271
    Abstract: Aqueous dispersions comprising:
    Type: Application
    Filed: June 6, 2003
    Publication date: December 11, 2003
    Applicants: Goldschmidt AG, Degussa AG
    Inventors: Christoph Batz-Sohn, Petra Brandt, Thomas Dietz, Steffen Hasenzahl, Klaus Jenni, Kathrin Lehmann, Ralf Mathiak, Angela Ruttgerodt
  • Dispersants for preparing aqueous pigment pastes
    Publication number: 20020019459
    Abstract: The invention relates to the use of copolymers containing vinyl-functionalized polyethers for preparing aqueous pigment preparations.
    Type: Application
    Filed: April 5, 2001
    Publication date: February 14, 2002
    Inventors: Gerhard Albrecht, Hubert Leitner, Timo Mangel, Ellen Reuter, Angela Ruttgerodt, Stefan Silber