Patents Examined by Elkizabeth Eng
  • Process for the production of polyethylene and ethylene copolymers
    Patent number: 8048971
    Abstract: The invention provides a process and an apparatus for the high pressure polymerization of ethylene in which a jet pump is used to pump a fluid into a polymer/monomer product mixture leaving a bumped tubular reactor. The fluid may be recycled monomer or another fluid such as a modifier.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 1, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ivo T. Goossens, Philip H. Cornelissen, Jan J. Naets, Henri A. Lammens