Patents by Inventor Jong-ki SIM

Jong-ki SIM 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: 11401372
    Abstract: A polyester resin and a coating composition containing the polyester resin are disclosed. The polyester resin includes a repeating unit obtained by copolymerizing (a) a divalent acid component and (b) a diol component containing (b-1) an isosorbide and (b-2) a cycloaliphatic diol, and has excellent heat resistance and solubility in a solvent. The cycloaliphatic diol may be one or more diol derivatives of a tricycle C7-14 alkane. A coating formed from a coating composition containing the polyester shows excellent heat resistance, hardness, chemical resistance, pollution resistance, and hydrolysis resistance.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 2, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jong-ki Sim, Soon-Ki Kim
  • Patent number: 11401371
    Abstract: A copolymerized saturated polyester resin is formed by polycondensation of an acid component and an alcohol component. The acid component contains (a-1) 90 to 99% by mole of an aromatic dicarboxylic acid or a C1-2 alkyl ester thereof and (a-2) 0.5 to 2% by mole of a trifunctional or higher functional carboxylic acid or an anhydride thereof. The alcohol component contains (b-1) 45 to 80% by mole of an alicyclic polyhydric alcohol and (b-2) 20 to 55% by mole of an aliphatic polyhydric alcohol having a C1-3 alkyl side chain. A coating composition containing the copolymerized saturated polyester resin shows excellent corrosion resistance and chemical resistance. A coating film formed from the coating composition shows excellent processability and resin solubility, and is useful for coating a can and pre-coated metal.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 2, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Hyung-Gon Kim, Jong-Ki Sim, Soon-Ki Kim
  • Publication number: 20210040261
    Abstract: The present invention relates to a copolymerized saturated polyester resin and a coating composition containing same. Provided are a copolymerized saturated polyester resin and a coating composition having excellent hot water resistance, chemical resistance and processability when formed into a coating film, and showing excellent adhesiveness to a metal base, and thus particularly useful for coating a can and pre-coated metal (PCM).
    Type: Application
    Filed: January 31, 2019
    Publication date: February 11, 2021
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Hyung-Gon KIM, Jong-ki SIM, Soon-Ki KIM
  • Publication number: 20200369826
    Abstract: The present invention relates to a copolymerized saturated polyester resin and a coating composition containing same. Provided are a copolymerized saturated polyester resin and a coating composition having excellent corrosion resistance and chemical resistance when formed into a coating film, showing excellent processability and resin solubility, and thus particularly useful for coating a can and pre-coated metal (PCM).
    Type: Application
    Filed: January 31, 2019
    Publication date: November 26, 2020
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Hyung-Gon KIM, Jong-Ki SIM, Soon-Ki KIM
  • Patent number: 10815403
    Abstract: The present invention relates to a polyester resin composition for a hot melt adhesive and a polyester resin produced therefrom. The polyester resin is excellent in adhesiveness to plate substrates, flexibility, and processability.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: October 27, 2020
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Dong Hun Yi, Soon-Ki Kim, Hyung-gon Kim, Jong-ki Sim
  • Publication number: 20190153276
    Abstract: The present invention relates to a polyester resin composition for a hot melt adhesive and a polyester resin produced therefrom. The polyester resin is excellent in adhesiveness to plate substrates, flexibility, and processability.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Dong Hun YI, Soon-Ki KIM, Hyung-gon KIM, Jong-ki SIM
  • Publication number: 20190077908
    Abstract: The present invention relates to: a polyester resin having excellent heat resistance and solubility in solvents; and a coating composition which contains the same, and is thus capable of forming a coating film having excellent heat resistance, hardness, chemical resistance, pollution resistance, and hydrolysis resistance.
    Type: Application
    Filed: January 5, 2017
    Publication date: March 14, 2019
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Jong-ki SIM, Soon-Ki KIM