Patents by Inventor Homer Swei

Homer Swei 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).

  • Dual donor catalyst system for the polymerization of olefins
    Patent number: 6686433
    Abstract: The present invention provides a catalyst system that exhibits unexpected control of desired properties in polyolefin products. The catalyst system includes a titanium-supported catalyst in combination with a mixture of tetraethoxysilane (TEOS) and dicyclopentyldimethoxy-silane (DCPMS). This catalyst system has been found to be effective in making polypropylene and polypropylene copolymers having relatively high melt flow rates and moderately broad molecular weight distribution.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: February 3, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Nemesio Delgado Miro, George Byron Georgellis, Homer Swei
  • Dual donor catalyst system for the polymerization of olefin
    Patent number: 6111039
    Abstract: The present invention provides a catalyst system that exhibits unexpected control of desired properties in polyolefin products. The catalyst system includes a titanium-supported catalyst in combination with a mixture of tetraethoxysilane (TEOS) and dicyclopentyldimethoxy-silane (DCPMS). This catalyst system has been found to be effective in making polypropylene and polypropylene copolymers having relatively high melt flow rates and moderately broad molecular weight distribution.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: August 29, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Nemesio Delgado Miro, George Byron Georgellis, Homer Swei