Patents by Inventor Shaungbing Han

Shaungbing Han 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).

  • Method for condensation polymerization of hydroxyl-terminated polydiorganosiloxanes
    Patent number: 11028230
    Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 8, 2021
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Matthew Belowich, Mark Rickard, Vladimir Pushkarev, Shaungbing Han, Evelyn Auyeung, John Roberts, Thomas Peterson
  • METHOD FOR CONDENSATION POLYMERIZATION OF HYDROXYL-TERMINATED POLYDIORGANOSILOXANES
    Publication number: 20210163686
    Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.
    Type: Application
    Filed: July 3, 2019
    Publication date: June 3, 2021
    Inventors: Matthew Belowich, Mark Rickard, Vladimir Pushkarev, Shaungbing Han, Evelyn Auyeung, John Roberts, Thomas Peterson