Patents by Inventor Chia Chee

Chia Chee 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).

  • Polymerization Process
    Publication number: 20070293638
    Abstract: This invention is directed to processes of making polymer in the presence of a hydrofluorocarbon or perfluorocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and provide polymer products that can be manufactured to relatively low densities. The invention is particularly beneficial in the production of ethylene based polymers using chromium catalyst systems.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 20, 2007
    Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Robert Hagerty, Chia Chee, Randall Laird, Michael Risch, Pradeep Shirodkar, Zerong Lin, Larry Iaccino
  • Polymerization Process
    Publication number: 20070249763
    Abstract: This invention is directed to processes of making polymer in the presence of a hydrofluorocarbon or perfluorocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and to the recovery of the hydrofluorocarbon and other hydrocarbons such as hydrocarbons for reuse in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of ethylene based polymers using Ziegler Natta catalyst systems.
    Type: Application
    Filed: June 20, 2005
    Publication date: October 25, 2007
    Inventors: Robert Hagerty, Chia Chee, Randall Laird, Michael Risch, Pradeep Shirodkar, Zerong Lin, Larry Iaccino
  • Polymerization Process
    Publication number: 20070208146
    Abstract: This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the recovery of the fluorinated hydrocarbon and other hydrocarbons such as hydrocarbons for reuse in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of propylene based polymers using Ziegler Natta catalyst systems.
    Type: Application
    Filed: June 20, 2005
    Publication date: September 6, 2007
    Inventors: Robert Hagerty, Chia Chee, Randall Laird, Michael Risch, Pradeep Shirodkar, Peijun Jiang