Patents Assigned to NICCA USA, Inc.
  • Surfactant blends for removing oligomer deposits from polyester fibers and polyester processing equipment
    Patent number: 7208456
    Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: April 24, 2007
    Assignee: Nicca USA, Inc.
    Inventor: Kazu Ikebata
  • Surfactant blends for removing oligomer deposits from polyester fibers and polyester processing equipment
    Patent number: 6911421
    Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: June 28, 2005
    Assignee: NICCA USA, Inc.
    Inventor: Kazu Ikebata