Patents Assigned to ConocoPhillips Co.
  • Drag-reducing polymers and drag-reducing polymer suspensions and solutions
    Patent number: 6576732
    Abstract: A drag-reducing polymer is described, along with a method for manufacturing the drag-reducing polymer. The drag-reducing polymer is manufactured by bulk polymerizing a vinyl aromatic with an &agr;-olefin, wherein the &agr;-olefin has a carbon chain length of between two and twenty carbons. A drag-reducing polymer suspension and drag-reducing polymer solution are also described.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: June 10, 2003
    Assignee: ConocoPhillips Co.
    Inventors: Stuart N. Milligan, Kenneth W. Smith