Patents by Inventor Sebastian Seibel

Sebastian Seibel 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).

  • Viscosity index improver with improved shear-resistance and solubility after shear
    Patent number: 10920164
    Abstract: The invention relates to a poly alkyl(meth)acrylate polymer comprising a combination of polybutadiene-based monomers having different average molecular weight, lubricant compositions comprising the polymer, a method for manufacturing the polymer and the use of the polymer as a viscosity index improver in a lubricating oil composition.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 16, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Rebecca Klein, Holger Becker, Dieter Janβen, Sebastian Seibel
  • VISCOSITY INDEX IMPROVER WITH IMPROVED SHEAR-RESISTANCE AND SOLUBILITY AFTER SHEAR
    Publication number: 20190177641
    Abstract: The invention relates to a poly alkyl(meth)acrylate polymer comprising a combination of polybutadiene-based monomers having different average molecular weight, lubricant compositions comprising the polymer, a method for manufacturing the polymer and the use of the polymer as a viscosity index improver in a lubricating oil composition.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 13, 2019
    Applicant: Evonik Oil Additives GmbH
    Inventors: Rebecca Klein, Holger Becker, Dieter Janßen, Sebastian Seibel
  • VISCOSITY INDEX IMPROVER WITH IMPROVED SHEAR-RESISTANCE AND SOLUBILITY AFTER SHEAR
    Publication number: 20190177640
    Abstract: The invention relates to a poly alkyl(meth)acrylate polymer comprising a combination of polybutadiene-based monomers having different average molecular weight, lubricant compositions comprising the polymer, a method for manufacturing the polymer and the use of the polymer as a viscosity index improver in a lubricating oil composition.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 13, 2019
    Applicant: Evonik Oil Additives GmbH
    Inventors: Rebecca Klein, Holger Becker, Dieter Janßen, Sebastian Seibel