Patents by Inventor Joo Pyung Lee

Joo Pyung Lee 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).

  • Organic solvent composition and paint composition including the same
    Patent number: 11926761
    Abstract: Provided are an organic solvent composition having excellent solvency for and compatibility with a resin, and a paint composition including the same. Specifically, the paint composition including the same is prepared, due to the difference in evaporation rate of the organic solvent composition, the compatibility with the resin may be further improved.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 12, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Jisun Choi, Joo Pyung Lee, Jaeyoung Park
  • Aromatic Organic Solvent Composition and Paint Composition Comprising the Same
    Publication number: 20230407113
    Abstract: The present invention relates to an aromatic organic solvent composition and a paint composition including the same. In some embodiments, the present invention relates to an aromatic organic solvent composition in which a weight ratio of C9 aromatic hydrocarbon to C10 aromatic hydrocarbon is 1:1.5 to 1:2.8, a weight ratio of trimethylbenzene and tetramethylbenzene is 1:0.1 to 1:1, the content of naphthalene is 5 ppm or less, and a pour point is ?90° C. to ?30° C.
    Type: Application
    Filed: June 19, 2023
    Publication date: December 21, 2023
    Inventors: Hyeong Cheol Kim, Joo Pyung Lee, Jun Hee Kim
  • Organic Solvent Composition and Paint Composition Comprising the Same
    Publication number: 20220340767
    Abstract: The present invention relates to an organic solvent composition and a paint composition including the same, and more particularly, an organic solvent composition including 50 to 75 wt % of C10 aromatic hydrocarbon, 25 to 40 wt % of C9 aromatic hydrocarbon, and less than 150 ppm of naphthalene, in which a weight ratio of trimethylbenzene and tetramethylbenzene is 50:50 to 90:10.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 27, 2022
    Inventors: Joo Pyung Lee, Jun Hee Kim
  • Organic Solvent Composition and Paint Composition Including the Same
    Publication number: 20210230437
    Abstract: Provided are an organic solvent composition having excellent solvency for and compatibility with a resin, and a paint composition including the same. Specifically, the paint composition including the same is prepared, due to the difference in evaporation rate of the organic solvent composition, the compatibility with the resin may be further improved.
    Type: Application
    Filed: July 25, 2019
    Publication date: July 29, 2021
    Inventors: Jisun Choi, Joo Pyung Lee, Jaeyoung Park