Patents by Inventor Hyun Gee Jung

Hyun Gee Jung 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).

  • Spandex having improved unwinding properties and enhanced adhesive properties with hot melt adhesive and method for preparing same
    Patent number: 10662554
    Abstract: The present invention relates to a method for preparing spandex having improved unwinding properties and enhanced adhesive properties with a hot melt adhesive and, more specifically, to a method for preparing spandex by means of adding a polystyrene polymer to a polyurethane-urea solution which is a spinning solution. Therefore, when spandex is unwound, irregular ballooning, tension spikes and the like can be effectively improved and other physical properties are unaffected. And the adhesive properties with a hot melt adhesive are enhanced.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 26, 2020
    Assignee: HYOSUNG TNC CORPORATION
    Inventors: Hyun Gee Jung, Joo Hyun Cho, Yeon Soo Kang
  • SPANDEX HAVING IMPROVED UNWINDING PROPERTIES AND ENHANCED ADHESIVE PROPERTIES WITH HOT MELT ADHESIVE AND METHOD FOR PREPARING SAME
    Publication number: 20190017196
    Abstract: The present invention relates to a method for preparing spandex having improved unwinding properties and enhanced adhesive properties with a hot melt adhesive and, more specifically, to a method for preparing spandex by means of adding a polystyrene polymer to a polyurethane-urea solution which is a spinning solution. Therefore, when spandex is unwound, irregular ballooning, tension spikes and the like can be effectively improved and other physical properties are unaffected. And the adhesive properties with a hot melt adhesive are enhanced.
    Type: Application
    Filed: January 10, 2017
    Publication date: January 17, 2019
    Inventors: Hyun Gee Jung, Joo Hyun Cho, Yeon Soo Kang