Patents by Inventor Tomasz J. Gralinski

Tomasz J. Gralinski 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).

  • Method of processing polyethylene resins
    Patent number: 6924351
    Abstract: Process for pelletizing polyethylene resin are disclosed, the processes providing pelletized resin having reduced occurrence of defects such as black specks. Polyethylene resin is conveyed in a downstream direction through a mixer having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt-conveying zone downstream of the melt-mixing zone; contacted with nitrogen gas in the melt-conveying zone; and conveyed through a mixer discharge to form pellets. Also disclosed are processes of forming films from such resins, the films having reduced occurrence of gels, and articles such as blow molded or injection molded articles.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: August 2, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Tomasz J. Gralinski, Thomas R. Rios, Carl Dean Heard, W. Bing Kao, Joanne K. Pabst, Wesley J. Robertson, Joel E. Schmieg
  • Method of processing polyethylene resins
    Publication number: 20030230820
    Abstract: Process for pelletizing polyethylene resin are disclosed, the processes providing pelletized resin having reduced occurrence of defects such as black specks. Polyethylene resin is conveyed in a downstream direction through a mixer having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt-conveying zone downstream of the melt-mixing zone; contacted with nitrogen gas in the melt-conveying zone; and conveyed through a mixer discharge to form pellets. Also disclosed are processes of forming films from such resins, the films having reduced occurrence of gels, and articles such as blow molded or injection molded articles.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 18, 2003
    Inventors: Tomasz J. Gralinski, Thomas R. Rios, Carl Dean Heard, W. Bing Kao, Joanne K. Pabst, Wesley J. Robertson, Joel E. Schmieg