Patents by Inventor Michael Flittner

Michael Flittner 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: 11001659
    Abstract: The present invention relates to a process for oxidizing secondary amino groups to the corresponding radical nitroxyl groups within a polymer comprising, for example, 2,2,6,6-tetramethylpiperidinyl units. The process assures a particularly high degree of oxidation.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 11, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Christian Meier, Michael Flittner, Christine Körner, Michael Korell, Jörn Klaus Erich Wolf
  • Publication number: 20210122864
    Abstract: The present invention relates to a process for oxidizing secondary amino groups to the corresponding radical nitroxyl groups within a polymer comprising, for example, 2,2,6,6-tetramethylpiperidinyl units. The process assures a particularly high degree of oxidation.
    Type: Application
    Filed: August 31, 2017
    Publication date: April 29, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Christian MEIER, Michael FLITTNER, Christine KÖRNER, Michael KORELL, Jörn Klaus Erich WOLF
  • Patent number: 9862788
    Abstract: The present invention relates to an innovative (meth)acrylic reactive resin which cures with low odor or odorlessly. The present invention relates more particularly to reactive resins comprising high-boiling, reactive (meth)acrylic monomers from the group of the polar, cyclically substituted esters of (meth)acrylic acid, more particularly glycerol acetal, ketal or carbonate methacrylates. These new components are used as substitutes for MMA, which represents the major part of the odor nuisance in the existing, prior-art reactive resin systems. Using these new components it is possible to obtain resin formulations which have glass transition temperatures similar to, and properties comparable with, MMA-based resins. The innovative reactive resins are able in addition to exhibit more rapid curing than prior-art MMA-based systems. Reactive resins for the purposes of the invention are reactive monomer mixtures or mixtures of monomers and polymers that when used as a 2-component system can be readily cured.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: January 9, 2018
    Assignee: Evonik Roehm GmbH
    Inventors: Stefan Hilf, Alexander Klein, Heike Heeb, Ingrid Kizewski, Sebastian Grimm, Michael Flittner
  • Publication number: 20140128536
    Abstract: The present invention relates to an innovative (meth)acrylic reactive resin which cures with low odour or odourlessly. The present invention relates more particularly to reactive resins comprising high-boiling, reactive (meth)acrylic monomers from the group of the polar, cyclically substituted esters of (meth)acrylic acid, more particularly glycerol acetal, ketal or carbonate methacrylates. These new components are used as substitutes for MMA, which represents the major part of the odour nuisance in the existing, prior-art reactive resin systems. Using these new components it is possible to obtain resin formulations which have glass transition temperatures similar to, and properties comparable with, MMA-based resins. The innovative reactive resins are able in addition to exhibit more rapid curing than prior-art MMA-based systems. Reactive resins for the purposes of the invention are reactive monomer mixtures or mixtures of monomers and polymers that when used as a 2-component system can be readily cured.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 8, 2014
    Applicant: Evonik Roehm GmbH
    Inventors: Stefan Hilf, Alexander Klein, Heike Heeb, Ingrid Kizewski, Sebastian Grimm, Michael Flittner