Patents by Inventor Sara Erika TÖNNERFORS

Sara Erika TÖNNERFORS 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).

  • Process to convert the cyclic monourea of an ethylene amine compound into the ethylene amine compound
    Patent number: 10968164
    Abstract: A process to convert the cyclic monourea of ethylene amine compounds (U-EA) into ethylene amine compound (EA) is provided. The process may include performing a reactive separation step using a reaction mixture containing the cyclic monourea, wherein one cyclic monourea (U-EA) reacts with another cyclic monourea (U-EA) to transfer its urea unit thereto. The process may further include separating the obtained ethylene amine compound (EA) without urea unit from the reaction mixture.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 6, 2021
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Michiel Jozef Thomas Raaijmakers, Antoon Jacob Berend Ten Kate, Eike Nicolas Kantzer, Rens Veneman, Slavisa Jovic, Rolf Krister Edvinsson, Karl Fredrik Lake, Hendrik Van Dam, Ina Ehlers, Sara Erika Tönnerfors
  • PROCESS TO CONVERT THE CYCLIC MONOUREA OF AN ETHYLENE AMINE COMPOUND INTO THE ETHYLENE AMINE COMPOUND
    Publication number: 20200223785
    Abstract: A process to convert the cyclic monourea of ethylene amine compounds (U-EA) into ethylene amine compound (EA) is provided. The process may include performing a reactive separation step using a reaction mixture containing the cyclic monourea, wherein one cyclic monourea (U-EA) reacts with another cyclic monourea (U-EA) to transfer its urea unit thereto. The process may further include separating the obtained ethylene amine compound (EA) without urea unit from the reaction mixture.
    Type: Application
    Filed: August 7, 2018
    Publication date: July 16, 2020
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Michiel Jozef Thomas RAAIJMAKERS, Antoon Jacob Berend TEN KATE, Eike Nicolas KANTZER, Rens VENEMAN, Slavisa JOVIC, Rolf Krister EDVINSSON, Karl Fredrik LAKE, Hendrik VAN DAM, Ina EHLERS, Sara Erika TÖNNERFORS