Patents by Inventor Sung Nam Hwang

Sung Nam Hwang 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).

  • Patent number: 6756123
    Abstract: Disclosed is an anticorrosion paint for preventing steel materials from corrosion by using polyaniline as an anticorrosion pigment. The anticorrosion paint has an excellent anticorrosion effect, long persistence of the anticorrosion effect, high durability and superior coating property controlling the anticorrosion effect, without using metal causing environmental pollution as an anticorrosion pigment. Especially, in the anticorrosion paint, the top coat paint for improving the protection of the primer coat paint and the anticorrosion effect. The top coat paint includes 40 to 89 wt % of matrix resin, 5 to 54 wt % of colored pigment, 1 to 50 wt % of dopants and 5 to 54 wt % of mixed solvents, and the primer coat paint includes 3 to 49 wt % of the polyaniline, 40 to 86 wt % of the matrix resin, 1 to 47 wt % of the dopants and 10 to 56 wt % of the mixed solvents. The anticorrosion paint plays a role in exerting persistently the excellent anticorrosion effect without causing environmental problem.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: June 29, 2004
    Assignees: AD-Tech Co., Ltd., Samhwa Paints Ind. Co., Ltd.
    Inventors: Jae Mok Ha, Sung Nam Hwang, Jin Woo Park, Woo Jin Choi, Han Seob Song, Seong Kil Kim, Jong Gu Park, Yong Hee Lee, Yong Seok Park, Hong Soo Park
  • Publication number: 20040005464
    Abstract: Disclosed is an anticorrosion paint for preventing steel materials from corrosion by using polyaniline as an anticorrosion pigment. The anticorrosion paint has an excellent anticorrosion effect, long persistence of the anticorrosion effect, high durability and superior coating property controlling the anticorrosion effect, without using metal causing environmental pollution as an anticorrosion pigment. Especially, in the anticorrosion paint, the top coat paint for improving the protection of the primer coat paint and the anticorrosion effect. The top coat paint includes 40 to 89 wt % of matrix resin, 5 to 54 wt % of colored pigment, 1 to 50 wt % of dopants and 5 to 54 wt % of mixed solvents, and the primer coat paint includes 3 to 49 wt % of the polyaniline, 40 to 86 wt % of the matrix resin, 1 to 47 wt % of the dopants and 10 to 56 wt % of the mixed solvents. The anticorrosion paint plays a role in exerting persistently the excellent anticorrosion effect without causing environmental problem.
    Type: Application
    Filed: September 3, 2002
    Publication date: January 8, 2004
    Applicants: AD-Tech Co., Ltd., Samhwa Paints Ind. Co., Ltd.
    Inventors: Jae Mok Ha, Sung Nam Hwang, Jin Woo Park, Woo Jin Choi, Han Seob Song, Seong Kil Kim, Jong Gu Park, Yong Hee Lee, Yong Seok Park, Hong Soo Park