Patents Assigned to Inuisia North America S.á.r.l.
  • High RV filaments and apparatus and process for making high RV flakes and the filaments
    Patent number: 6814939
    Abstract: The present invention relates to industrial high relative viscosity (RV) filaments, such as, for use in papermaking machine felts and other staple fiber applications. The invention is further directed to apparatus and processes for solid phase polymerization (SPP) of polyamide flake suitable for use, such as, in remelting and then spinning the industrial high RV filaments. The invention is also directed to processes for melt phase polymerization (MPP) of molten polymer for making the filaments.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: November 9, 2004
    Assignee: Inuisia North America S.á.r.l.
    Inventors: Glenn Alan Schwinn, Gary Raymond West