Patents by Inventor Mi Kyoung Song

Mi Kyoung Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reactive black dye compositions for cellulose fibers
    Patent number: 6443997
    Abstract: The present invention relates to a reactive black dye composition for cellulose fiber and more particularly, to the reactive black dye composition with excellent several fastnesses, dyeing levelness, reproducibility and dyeing yield, comprising a mixture with a certain amount ratio of an orange reactive dye expressed in formula (1) and black dye expressed in formula (2), wherein Z is —OSO3M or OC(O)CH3; and M is an alkaline metal atom.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: September 3, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sea Wha Oh, Myeong Nyeo Kang, Tae Kyung Kim, Mi Kyoung Song
  • Reactive red dyes containing monochlorotriazine and acetoxyethyl sulfone groups
    Patent number: 6310187
    Abstract: The present invention relates to a bifunctional red reactive dye and more particularly, to the bifunctional red reactive dye with monochlorotriazine and acetoxyethylsulfone as reactive groups expressed by formula (I), wherein, M is alkaline metal atom, which provides excellent combination of properties in that 1) the introduction of aminophenyl-&bgr;-acetoxyethylsulfone group to the dye may minimize the loss of dye, since its low solubility to water lessens the amount of the remaining solution during filtration, 2) an easier salting-out process requires a smaller amount of salt during the process so that the costs for the treatment of waste water may be significantly reduced, and 3) a better dyeing yield with enhanced substantivity and better brightness in color
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: October 30, 2001
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sea Wha Oh, Myeong Nyeo Kang, Seung Rim Shin, Tae Kyung Kim, Mi Kyoung Song