Patents by Inventor Si Hyun Jeong

Si Hyun Jeong 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).

  • Coating composition for forming scratch-resistant layer having high strength for automobile exterior and method for coating automobile exterior using the same
    Patent number: 10889733
    Abstract: A coating composition may include 5 wt % to 20 wt % of a caprolactone-modified hyperbranched polyester polyol, the caprolactone-modified hyperbranched polyester polyol obtained from polyhydric alcohol including caprolactone triol, 30 wt % to 50 wt % of a first acrylic resin, the first acrylic resin having a hydroxyl group, 15 wt % to 25 wt % of a second acrylic resin, the second acrylic resin having a hydroxyl group and having a glass transition temperature higher than that of the first acrylic resin, and an extra solvent.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 12, 2021
    Assignee: NOROO BEE Chemical Co., Ltd.
    Inventors: Jae Beom Ahn, Young Hoon Choi, Dae Geun Oh, Sung Do Kim, Si Hyun Jeong
  • COATING COMPOSITION FOR FORMING SCRATCH-RESISTANT LAYER HAVING HIGH STRENGTH FOR AUTOMOBILE EXTERIOR AND METHOD FOR COATING AUTOMOBILE EXTERIOR USING THE SAME
    Publication number: 20190177569
    Abstract: A coating composition may include 5 wt % to 20 wt % of a caprolactone-modified hyperbranched polyester polyol, the caprolactone-modified hyperbranched polyester polyol obtained from polyhydric alcohol including caprolactone triol, 30 wt % to 50 wt % of a first acrylic resin, the first acrylic resin having a hydroxyl group, 15 wt % to 25 wt % of a second acrylic resin, the second acrylic resin having a hydroxyl group and having a glass transition temperature higher than that of the first acrylic resin, and an extra solvent.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 13, 2019
    Applicant: NOROO BEE Chemical Co., Ltd.
    Inventors: Jae Beom Ahn, Young Hoon Choi, Dae Geun Oh, Sung Do Kim, Si Hyun Jeong