Patents by Inventor Florian Düllmann

Florian Düllmann 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).

  • Use of silicon dioxide for improving the cathodic anticorrosion effect of ground coats
    Patent number: 12473654
    Abstract: A method using silicon dioxide improves the cathodic anticorrosion effect of ground coats, preferably of a zinc primer, based on epoxy-functional polymers and at least one metal particle.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: November 18, 2025
    Assignee: Evonik Operations GmbH
    Inventors: Markus Hallack, Berend-Jan de Gans, Florian Düllmann, Sascha Herrwerth
  • Curable condensation compounds based on alkoxy-functional polysiloxanes
    Patent number: 12460081
    Abstract: Curable condensation compounds are obtainable by a reaction of non-end-equilibrated acetoxy group-bearing siloxanes with at least one alkoxy-functional polysiloxane, in the presence of a catalyst.
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: November 4, 2025
    Assignee: Evonik Operations GmbH
    Inventors: Berend-Jan de Gans, Wilfried Knott, Horst Dudzik, Markus Hallack, Florian Düllmann, Philippe Favresse
  • Curable condensation compounds based on alkoxy-functional polysiloxanes
    Patent number: 12152109
    Abstract: Curable condensation compounds are useful, obtainable by the reaction of end-equilibrated acetoxy group-bearing siloxanes with at least one alkoxy-functional polysiloxane, in the presence of a catalyst.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: November 26, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Berend-Jan de Gans, Philippe Favresse, Wilfried Knott, Horst Dudzik, Markus Hallack, Florian Düllmann
  • Curable condensation compounds based on alkoxy-functional polysiloxanes
    Publication number: 20230159756
    Abstract: Curable condensation compounds are obtainable by a reaction of non-end-equilibrated acetoxy group-bearing siloxanes with at least one alkoxy-functional polysiloxane, in the presence of a catalyst.
    Type: Application
    Filed: November 24, 2022
    Publication date: May 25, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Berend-Jan DE GANS, Wilfried Knott, Horst Dudzik, Markus Hallack, Florian Düllmann, Philippe Favresse
  • Curable condensation compounds based on alkoxy-functional polysiloxanes
    Publication number: 20220177652
    Abstract: Curable condensation compounds are useful, obtainable by the reaction of end-equilibrated acetoxy group-bearing siloxanes with at least one alkoxy-functional polysiloxane, in the presence of a catalyst.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Berend-Jan DE GANS, Philippe Favresse, Wilfried Knott, Horst Dudzik, Markus Hallack, Florian Düllmann
  • Curing agent mixture
    Patent number: 11254819
    Abstract: A curing agent mixture is for coatings that cure at room temperature. The curing agent mixture can include (A) 10-60% by weight, preferably 20-60% by weight, more preferably 30-50% by weight, of a polysiloxane, (B) 40-90% by weight, preferably 40-80% by weight, more preferably 40-70% by weight, of an amino-functional alkoxysilane and (C) 1-10% by weight, preferably 2-7% by weight, more preferably 3-5% by weight, of a guanidine compound. The stated amounts of components (A), (B), and (C) add up to 100% by weight and are based on the curing agent mixture.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 22, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Markus Hallack, Mona Seyfried, Berend-Jan de Gans, Florian Düllmann, Sascha Herrwerth
  • Use of silicon dioxide for improving the cathodic anticorrosion effect of ground coats
    Publication number: 20220049362
    Abstract: A method using silicon dioxide improves the cathodic anticorrosion effect of ground coats, preferably of a zinc primer, based on epoxy-functional polymers and at least one metal particle.
    Type: Application
    Filed: August 11, 2021
    Publication date: February 17, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Markus Hallack, Berend-Jan de Gans, Florian Düllmann, Sascha Herrwerth
  • Curing agent mixture
    Publication number: 20210122921
    Abstract: A curing agent mixture is for coatings that cure at room temperature. The curing agent mixture can include (A) 10-60% by weight, preferably 20-60% by weight, more preferably 30-50% by weight, of a polysiloxane, (B) 40-90% by weight, preferably 40-80% by weight, more preferably 40-70% by weight, of an amino-functional alkoxysilane and (C) 1-10% by weight, preferably 2-7% by weight, more preferably 3-5% by weight, of a guanidine compound. The stated amounts of components (A), (B), and (C) add up to 100% by weight and are based on the curing agent mixture.
    Type: Application
    Filed: October 26, 2020
    Publication date: April 29, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Markus HALLACK, Mona Seyfried, Berend-Jan de Gans, Florian Düllmann, Sascha Herrwerth