Patents by Inventor Dong-Hwa Gong

Dong-Hwa Gong 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).

  • Diethyleneglycol ester based plasticizer composition and polyvinyl chloride resin using the same
    Publication number: 20070027240
    Abstract: The present invention relates to a diethylene glycol ester based plasticizer composition comprising at least two diethylene glycol ester compounds. The diethylene glycol ester based plasticizer composition of the present invention offers superior tensile strength, elongation, transfer resistance, hardness, transparency, adhesivity, and compatibility with resin, when used for a plasticizer of a polyvinyl chloride resin, without releasing environmental hormones. Thus, it can be used for a polyvinyl chloride resin of a warp film.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 1, 2007
    Inventors: Kye-Seok Lee, Kyu-Il Lee, Hyun-Kyu Kim, Chil-Eui Hong, Dong-Hwa Gong, Hyun-Ju Kim