Patents by Inventor Hey Jeong LEE

Hey Jeong 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).

  • Process for preparing coated ABS sheet
    Patent number: 10370512
    Abstract: A method of preparing an acrylonitrile butadiene styrene (ABS) sheet includes: a first step of hydrophilizing the surface of an ABS substrate by coating a surfactant solution on the substrate; a second step of washing the surfactant-coated ABS substrate with distilled water and drying the surfactant-coated ABS substrate; a third step of forming an intermediate film by coating poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate (PEDOT-PSS) on top of the dried ABS substrate; and a fourth step of coating a fluorinated polymer solution of poly(vinylidene fluoride-trifluoroethylene) on top of the intermediate film.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: August 6, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Gwngju Institute of Science and Technology
    Inventors: Eun Ju Noh, Min Hee Lee, Hey Jeong Lee, Jeong Hun Kwak, Wan Sik Kim, Ji Young Jo, Hyeon Jun Lee
  • ROUGHNESS IMPROVED HIGH GLOSS ABS SHEET AND PROCESS FOR PREPARING THEREOF
    Publication number: 20180186953
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Inventors: Eun Ju NOH, Min Hee LEE, Hey Jeong LEE, Jeong Hun KWAK, Wan Sik KIM, Ji Young JO, Hyeon Jun LEE
  • Roughness improved high gloss ABS sheet and process for preparing thereof
    Patent number: 9938386
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 10, 2018
    Assignees: HYUNDAI MOTOR COMPANY, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eun Ju Noh, Min Hee Lee, Hey Jeong Lee, Jeong Hun Kwak, Wan Sik Kim, Ji Young Jo, Hyeon Jun Lee
  • ROUGHNESS IMPROVED HIGH GLOSS ABS SHEET AND PROCESS FOR PREPARING THEREOF
    Publication number: 20160185924
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Application
    Filed: September 30, 2015
    Publication date: June 30, 2016
    Inventors: Eun Ju NOH, Min Hee LEE, Hey Jeong LEE, Jeong Hun KWAK, Wan Sik KIM, Ji Young JO, Hyeon Jun LEE