Patents by Inventor Kai-Oliver Feldmann

Kai-Oliver Feldmann 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).

  • Crosslinked polyether-siloxane block copolymers and their use for producing polyurethane foams
    Patent number: 11965064
    Abstract: Crosslinked polyether siloxane block copolymers are obtained by reacting an alpha-omega hydrogen siloxane with at least one higher-order hydrogen siloxane and at least one polyether in the presence of a hydrosilylation catalyst. These are described, and also use thereof as additives for producing polyurethane foams, particularly mechanically foamed polyurethane foams.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 23, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Michael Klostermann, Michael Ferenz, Kai-Oliver Feldmann, Marvin Jansen, Michelle Fluder, Sina Arnold, Petra Schnell
  • Use of long-chain citric acid esters in aqueous polyurethane dispersions
    Patent number: 11932747
    Abstract: The use of long-chain citric acid esters as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: March 19, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Marvin Jansen, Sina Arnold
  • USE OF SURFACTANT FORMULATIONS COMPRISING LONG-CHAIN ALCOHOLS IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20230416497
    Abstract: The use of surfactant formulations comprising long-chain alcohols as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: August 30, 2023
    Publication date: December 28, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Marvin Jansen, Sina Arnold
  • COMBINED USE OF POLYOL ESTERS AND CATIONIC POLYELECTROLYTES IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20220315797
    Abstract: The combined use of polyol esters and cationic polyelectrolytes as additives in cosurfactant-containing aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: July 18, 2019
    Publication date: October 6, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, YeChen Le, Kai-Oliver Feldmann, Marvin Jansen
  • USE OF POLYAMINE- AND/OR POLYALKANOLAMINE-BASED CARBOXYLIC ACID DERIVATIVES IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20220306861
    Abstract: The use of polyamine- and/or polyalkanolamine-based carboxylic acid derivatives as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: March 27, 2022
    Publication date: September 29, 2022
    Inventors: Michael Klostermann, Jan Marian Von Hof, Kai-Oliver Feldmann, Marvin Jansen
  • COMBINED USE OF POLYOL ETHERS AND CATIONIC POLYELECTROLYTES IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20220259429
    Abstract: The combined use of polyol ethers and cationic polyelectrolytes as additives in cosurfactant-containing aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: July 18, 2019
    Publication date: August 18, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, YeChen Le, Kai-Oliver Feldmann, Marvin Jansen
  • POLYOL ESTER-BASED FOAM ADDITIVES FOR POLYURETHANE DISPERSIONS HAVING HIGH FILLER CONTENTS
    Publication number: 20220243057
    Abstract: The joint use of polyol esters and ethylene oxide-rich alkyl alkoxylates as additives in filler-containing aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: July 9, 2019
    Publication date: August 4, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Verena Dahl, Marvin Jansen, Sina Arnold, YeChen Le
  • POLYOL ETHER-BASED FOAM ADDITIVES FOR POLYURETHANE DISPERSIONS HAVING HIGH FILLER CONTENTS
    Publication number: 20220243058
    Abstract: The joint use of polyol ethers and ethylene oxide-rich alkyl alkoxylates as additives in filler-containing aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: July 9, 2019
    Publication date: August 4, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Verena Dahl, Marvin Jansen, Sina Arnold, YeChen Le
  • POLYETHER-SILOXANE BLOCK COPOLYMERS FOR THE PRODUCTION OF POLYURETHANE FOAMS
    Publication number: 20220185967
    Abstract: A process for preparing polyether-siloxane block copolymers by hydrosilylation of alpha,omega-modified hydrosiloxanes with alpha,omega-modified di(meth)allyl polyethers in the presence of a hydrosilylation catalyst, wherein the reaction is performed in a solvent mixture comprising aromatic solvents, polyethers and alkoxylated alcohol, is described.
    Type: Application
    Filed: November 10, 2021
    Publication date: June 16, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Ferenz, Michael Klostermann, Kai-Oliver Feldmann, Petra Schnell, Michelle Eckhoff
  • NITROGEN-FREE AND LOW-NITROGEN CROSSLINKING ADDITIVES FOR COLD-CURE FLEXIBLE SLABSTOCK FOAM HAVING IMPROVED COMPRESSION AND AGING PROPERTIES
    Publication number: 20220017680
    Abstract: Process for producing cold-cure flexible slabstock PU foams by reaction of at least one polyol component and at least one isocyanate component in the presence of water and at least one catalyst and at least one crosslinker, wherein no nitrogen-containing crosslinkers having an expanded OH number above 1000 mg KOH/g are employed in a total amount >0.5 parts by weight, preferably >0.1 parts by weight, based on 100 parts by weight of polyol.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 20, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Harald Modro, Kai-Oliver Feldmann, Mladen Vidakovic, Rüdiger Landers, Daniela Hermann
  • USE OF LONG-CHAIN CITRIC ACID ESTERS IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20210403676
    Abstract: The use of long-chain citric acid esters as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 30, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Marvin Jansen, Sina Arnold
  • USE OF TWO-TAIL LONG-CHAIN ANIONIC SURFACTANTS IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20210403493
    Abstract: The use of two-tail long-chain anionic surfactants as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: May 17, 2021
    Publication date: December 30, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Sina Arnold, Marvin Jansen
  • USE OF SURFACTANT FORMULATIONS COMPRISING LONG-CHAIN ALCOHOLS IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20210403673
    Abstract: The use of surfactant formulations comprising long-chain alcohols as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 30, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Marvin Jansen, Sina Arnold
  • USE OF LONG-CHAIN PHOSPHORIC ACID ESTERS IN AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20210403678
    Abstract: The use of long-chain phosphoric acid esters as additives in aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 30, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Kai-Oliver Feldmann, Jan Marian von Hof, Sina Arnold, Marvin Jansen
  • PRODUCTION OF POLYURETHANE SYSTEMS
    Publication number: 20210214488
    Abstract: The invention provides a process for production of polyurethane systems by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts for the isocyanate-polyol and/or isocyanate-water reactions and/or the trimerization of isocyanate, wherein said reacting is carried out in the presence of carrier material and polyamine P.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Eva Emmrich-Smolczyk, Mladen Vidakovic, Kai-Oliver Feldmann, Annegret Terheiden
  • Production of polyurethane systems
    Patent number: 10995174
    Abstract: The invention provides a process for production of polyurethane systems by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts for the isocyanate-polyol and/or isocyanate-water reactions and/or the trimerization of isocyanate, wherein said reacting is carried out in the presence of carrier material and polyamine P.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 4, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Eva Emmrich-Smolczyk, Mladen Vidakovic, Kai-Oliver Feldmann, Annegret Terheiden
  • CROSSLINKED POLYETHER-SILOXANE BLOCK COPOLYMERS AND THEIR USE FOR PRODUCING POLYURETHANE FOAMS
    Publication number: 20210047474
    Abstract: Crosslinked polyether siloxane block copolymers are obtained by reacting an alpha-omega hydrogen siloxane with at least one higher-order hydrogen siloxane and at least one polyether in the presence of a hydrosilylation catalyst. These are described, and also use thereof as additives for producing polyurethane foams, particularly mechanically foamed polyurethane foams.
    Type: Application
    Filed: February 8, 2019
    Publication date: February 18, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Michael Ferenz, Kai-Oliver Feldmann, Marvin Jansen, Michelle Fluder, Sina Arnold, Petra Schnell
  • Production Of Polyurethane Systems
    Publication number: 20190092893
    Abstract: The invention provides a process for production of polyurethane systems by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts for the isocyanate-polyol and/or isocyanate-water reactions and/or the trimerization of isocyanate, wherein said reacting is carried out in the presence of carrier material and polyamine P.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 28, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Eva Emmrich-Smolczyk, Mladen Vidakovic, Kai-Oliver Feldmann, Annegret Terheiden