Patents by Inventor Susanne Rohde

Susanne Rohde 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 for preparing branched polycarbonate
    Patent number: 7057005
    Abstract: The present invention is a process for producing branched polycarbonate providing for optimum utilization of the branching agent. It was surprisingly found that adding at least a portion of the coupling catalyst to the polymerization at a point during the oligomerization in the reaction results in a higher degree of branching and improved rheological properties.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: June 6, 2006
    Assignee: Dow Global TechnologiessInc.
    Inventors: Susanne Rohde, Bernhard Elbert
  • Process for preparing branched polycarbonate
    Publication number: 20050020804
    Abstract: The present invention is a process for producing branched polycarbonate providing for optimum utilization of the branching agent. It was surprisingly found that adding at least a portion of the coupling catalyst to the polymerization at a point during the oligomerization in the reaction results in a higher degree of branching and improved rheological properties.
    Type: Application
    Filed: June 29, 2004
    Publication date: January 27, 2005
    Inventors: Susanne Rohde, Bernhard Elbert