Patents by Inventor Dale J. Joy

Dale J. Joy 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).

  • Oxygen tailoring of polyethylene film resins
    Patent number: 6989423
    Abstract: Processes are disclosed for oxygen-tailoring polyethylene resin. Polyethylene resin is conveyed through a feed zone, a melt-mixing zone and a melt zone. The resin is contacted with oxygen in an amount of at least 40 parts by weight O2 per million parts by weight resin, and contacted with primary antioxidant downstream of the point or points of oxygen contact. The oxygen-treated resin can be used to make polyethylene film having improved gauge uniformity.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: January 24, 2006
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: James E. Wagner, Jerry M. Johnson, Dale J. Joy, Wesley J. Robertson, Timothy J. Cowell
  • Oxygen tailoring of polyethylene film resins
    Publication number: 20040039131
    Abstract: Processes are disclosed for oxygen-tailoring polyethylene resin. Polyethylene resin is conveyed through a feed zone, a melt-mixing zone and a melt zone. The resin is contacted with oxygen in an amount of at least 40 parts by weight O2 per million parts by weight resin, and contacted with primary antioxidant downstream of the point or points of oxygen contact. The oxygen-treated resin can be used to make polyethylene film having improved gauge uniformity.
    Type: Application
    Filed: July 2, 2003
    Publication date: February 26, 2004
    Inventors: James E. Wagner, Jerry M. Johnson, Dale J. Joy, Wesley J. Robertson, Timothy J. Cowell