Patents by Inventor Bruce S. Xin

Bruce S. Xin 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).

  • Catalysts with a donor-acceptor interaction
    Patent number: 6657027
    Abstract: The present invention relates to compounds in which a transition metal is complexed with two ligand systems and the two systems are reversibly bonded together by at least one bridge consisting of a donor and an acceptor, at least one substituent on the acceptor group being a fluorinated aryl radical, to the use of these compounds as catalysts and to a process for the polymerization of olefins.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: December 2, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Aleksander Ostoja-Starzewski, Bruce S. Xin
  • Catalysts with a donor-acceptor interaction
    Publication number: 20030036474
    Abstract: The present invention relates to compounds in which a transition metal is complexed with two ligand systems and the two systems are reversibly bonded together by at least one bridge consisting of a donor and an acceptor, at least one substituent on the acceptor group being a fluorinated aryl radical, to the use of these compounds as catalysts and to a process for the polymerization of olefins.
    Type: Application
    Filed: March 18, 2002
    Publication date: February 20, 2003
    Inventors: Karl-Heinz Aleksander Ostoja-Starzewski, Bruce S. Xin