Patents by Inventor Byung Su Song

Byung Su 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).

  • High chlorine and heat resistant spandex fiber and manufacturing method thereof
    Patent number: 6692828
    Abstract: Disclosed is a spandex fiber prepared to be excellent in resistance to both chlorine and heat without affecting the properties of the polyurethane polymer, and manufacturing method thereof. The spandex fiber contains hydrotalcite coated with 0.1 to 10 wt. % of a melamine-based compound. The melamine-based compound includes melamine compounds, phosphor-associated melamine compounds, melamine cyanurate compounds, melamine compounds substituted with an organic compound having a carboxyl group, phosphor-associated melamine compounds substituted with an organic compound having a carboxyl group, or melamine cyanurate compounds substituted with an organic compound having a carboxyl group, which are used alone or in combination. The spandex fiber has a high resistance to both chlorine and heat and is therefore useful for underwear, socks, and particularly, sports apparels such as swimsuit.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: February 17, 2004
    Assignees: Hyosung Corporation, Doobon Inc.
    Inventors: Byung Su Song, Tae Woo Lee, Ji Won Kim, Seung Won Seo, Dae Hwi Lee
  • High chlorine and heat resistant spandex fiber and manufacturing method thereof
    Publication number: 20030203199
    Abstract: Disclosed is a spandex fiber prepared to be excellent in resistance to both chlorine and heat without affecting the properties of the polyurethane polymer, and manufacturing method thereof. The spandex fiber contains hydrotalcite coated with 0.1 to 10 wt. % of a melamine-based compound. The melamine-based compound includes melamine compounds, phosphor-associated melamine compounds, melamine cyanurate compounds, melamine compounds substituted with an organic compound having a carboxyl group, phosphor-associated melamine compounds substituted with an organic compound having a carboxyl group, or melamine cyanurate compounds substituted with an organic compound having a carboxyl group, which are used alone or in combination. The spandex fiber has a high resistance to both chlorine and heat and is therefore useful for underwear, socks, and particularly, sports apparels such as swimsuit.
    Type: Application
    Filed: September 24, 2002
    Publication date: October 30, 2003
    Inventors: Byung Su Song, Tae Woo Lee, Ji Won Kim, Seung Won Seo, Dae Hwi Lee