Patents Assigned to DuPont Performance Elastomers
  • Process aid for melt processable polymers
    Patent number: 7449520
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: November 11, 2008
    Assignee: DuPont Performance Elastomers
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani