Patents by Inventor Xiuhua Cui

Xiuhua Cui 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 selectively polymerizing ethylene and catalyst therefor
    Patent number: 9000108
    Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: April 7, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Robert D. Froese, Xiuhua Cui
  • PROCESS FOR SELECTIVELY POLYMERIZING ETHYLENE AND CATALYST THEREFOR
    Publication number: 20140163186
    Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
    Type: Application
    Filed: November 11, 2013
    Publication date: June 12, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Robert D. Froese, Xiuhua Cui
  • Process for selectively polymerizing ethylene and catalyst therefor
    Patent number: 8609794
    Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 17, 2013
    Assignee: Dow Global Technologies, LLC.
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Robert D. Froese, Xiuhua Cui
  • PROCESS FOR SELECTIVELY POLYMERIZING ETHYLENE AND CATALYST THEREFOR
    Publication number: 20110282018
    Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 17, 2011
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Robert D. Froese, Xiuhua Cui