Patents by Inventor Hea-Chun Kang

Hea-Chun Kang 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).

  • Decorative floor covering comprising polyethylene terephthalate film layer in surface layer and manufacturing method of the same
    Patent number: 6933043
    Abstract: The present invention provides a decorative floor covering comprising a surface layer and a substrate layer underneath, wherein the surface layer comprises a polyethylene terephthalate film layer, and a method for preparing the same. Furthermore, the present invention provides a decorative floor covering comprising a surface layer and a substrate layer underneath, wherein a light weight back layer is further comprised under the substrate layer, and a method for preparing the same. A decorative floor covering of the present invention is a decorative floor covering which has superior surface heat resistance, printing sharpness and realism, and it can be installed conveniently since not only can non-foamed polyvinyl chloride resin be used as a substrate layer, but also the weight of a floor covering is light when a light weight back layer is comprised under the substrate layer.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 23, 2005
    Assignee: LG Chem, Ltd.
    Inventors: Seog-Jae Son, Ha-Soo Jang, Hea-Chun Kang