Patents Assigned to Sejong University
  • Dispersant composition used for preparing aqueous pigmented ink for ink-jet
    Patent number: 6838521
    Abstract: The present invention relates to a new dispersant composition used for preparing ink for ink-jet, which provides long term fluidity at a fine injection nozzle of ink-jet, shows a stable injection amount, and gives no coagulation of pigment particles when ink for ink-jet is applied.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: January 4, 2005
    Assignee: Sejong University
    Inventors: Chun Yoon, Bon-Chul Koo