Patents Examined by Buffalow: Edith
  • Method of extrusion of compositions of linear polyethylene and polyacetal and films thereof
    Patent number: 4780508
    Abstract: The extrudability of linear polymers of ethylene such as low density copolymers of ethylene and C.sub.4 -C.sub.10 olefins (LLDPE) into thin films is improved by adding small amounts, e.g., 0.02 to 1 weight percent polyacetal fluoride to reduce melt fracture, head pressure and extruder torque.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: October 25, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Theresa L. Cunningham, Richard G. Shaw, Tien-Kuei Su