Patents by Inventor Pyeong-Gi KIM

Pyeong-Gi KIM 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: 11773233
    Abstract: The present invention relates to a carbon composite material and a method for producing the same, and more particularly, to a carbon composite material capable of improving electrostatic dispersibility and flame retardancy, and a method for producing the same. The carbon composite material according to the present invention can be effectively applied to products requiring conductivity and flame retardancy.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 3, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Seokwon Kim, Se Hyun Kim, Tae Hyung Kim, Pyeong-Gi Kim, Suk Jo Choi, Dong Hyun Cho
  • Patent number: 11198780
    Abstract: The present invention relates to a carbon composite, which comprises a polymer resin and a carbon material having specific conditions, thereby controlling a dielectric constant. According to the present invention, the carbon composite and a method for controlling a dielectric constant by using the same can be variously applied to a circuit, an electronic material and the like by establishing a correlation between the specific surface area of the carbon material and the dielectric property of the carbon composite.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: December 14, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Pyeong-Gi Kim, Seokwon Kim, Se Hyun Kim, Tae Hyung Kim, Suk Jo Choi, Dong Hyun Cho
  • Patent number: 11084929
    Abstract: The present invention provides a silicone composite material having a cured conductive rubber composition containing liquid silicone and carbon nanotubes, wherein the initial viscosity of the liquid silicone and the volume resistance of the silicone composite material satisfy a specific relationship, and when the silicone composite material is provided through the relationship equation, the reproducibility of the volume resistance value is excellent. A silicone composite material manufactured to satisfy the relationship equation is characterized in that the resistance deviation in the composite is small and the appearance properties thereof are excellent.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 10, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyung Sik Jang, Pyeong Gi Kim, Se Hyun Kim, Dong Hyun Cho
  • Patent number: 10995216
    Abstract: In the present invention, it is possible to provide a silicone rubber composite which exhibits a conductivity equal to or higher than that using a high content of carbon black, by using a low content of carbon nanotubes as a conductive filler instead of a high content of carbon black to impart conductivity to insulating silicone rubber.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 4, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyungsik Jang, Pyeong Gi Kim, Se Hyun Kim, Dong Hyun Cho
  • Patent number: 10954388
    Abstract: In the present invention, it is possible to provide a silicone rubber composite which exhibits a conductivity equal to or higher than that using a high content of carbon black, by using a low content of carbon nanotubes as a conductive filler instead of a high content of carbon black to impart conductivity to insulating silicone rubber.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: March 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyungsik Jang, Pyeong Gi Kim, Se Hyun Kim, Dong Hyun Cho
  • Patent number: 10920077
    Abstract: The present invention relates to a conductive silicone composition including conductive rubber compositions containing 100 parts by weight of liquid silicone and 0.5 to 2.5 parts by weight of carbon nanotubes, wherein the initial viscosity of the liquid silicone is 5,000 to 41,000 cP, the average viscosity of the conductive rubber compositions is 80,000 to 350,000 cP and the viscosity difference between the initial viscosity of the liquid silicone and the average viscosity of the conductive rubber compositions is 70,000 to 310,000 cP. The conductive silicone composition as described above is excellent in processibility when processed into a silicone composite material, and the volume resistance of a manufactured silicone composite material may be greatly improved.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: February 16, 2021
    Assignee: LG CHEM, LTD
    Inventors: Hyung Sik Jang, Se Hyun Kim, Pyeong Gi Kim, Dong Hyun Cho
  • Publication number: 20200148882
    Abstract: The present invention provides a silicone composite material having a cured conductive rubber composition containing liquid silicone and carbon nanotubes, wherein the initial viscosity of the liquid silicone and the volume resistance of the silicone composite material satisfy a specific relationship, and when the silicone composite material is provided through the relationship equation, the reproducibility of the volume resistance value is excellent. A silicone composite material manufactured to satisfy the relationship equation is characterized in that the resistance deviation in the composite is small and the appearance properties thereof are excellent.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 14, 2020
    Inventors: Hyung Sik JANG, Pyeong Gi KIM, Se Hyun KIM, Dong Hyun CHO
  • Publication number: 20200040185
    Abstract: The present invention relates to a conductive silicone composition including conductive rubber compositions containing 100 parts by weight of liquid silicone and 0.5 to 2.5 parts by weight of carbon nanotubes, wherein the initial viscosity of the liquid silicone is 5,000 to 41,000 cP, the average viscosity of the conductive rubber compositions is 80,000 to 350,000 cP and the viscosity difference between the initial viscosity of the liquid silicone and the average viscosity of the conductive rubber compositions is 70,000 to 310,000 cP. The conductive silicone composition as described above is excellent in processibility when processed into a silicone composite material, and the volume resistance of a manufactured silicone composite material may be greatly improved.
    Type: Application
    Filed: November 28, 2018
    Publication date: February 6, 2020
    Inventors: Hyung Sik JANG, Se Hyun KIM, Pyeong Gi KIM, Dong Hyun CHO
  • Publication number: 20200017685
    Abstract: In the present invention, it is possible to provide a silicone rubber composite which exhibits a conductivity equal to or higher than that using a high content of carbon black, by using a low content of carbon nanotubes as a conductive filler instead of a high content of carbon black to impart conductivity to insulating silicone rubber.
    Type: Application
    Filed: January 9, 2018
    Publication date: January 16, 2020
    Inventors: Hyungsik JANG, Pyeong Gi KIM, Se Hyun KIM, Dong Hyun CHO
  • Publication number: 20190002680
    Abstract: The present invention relates to a carbon composite, which comprises a polymer resin and a carbon material having specific conditions, thereby controlling a dielectric constant. According to the present invention, the carbon composite and a method for controlling a dielectric constant by using the same can be variously applied to a circuit, an electronic material and the like by establishing a correlation between the specific surface area of the carbon material and the dielectric property of the carbon composite.
    Type: Application
    Filed: October 17, 2016
    Publication date: January 3, 2019
    Inventors: Pyeong-Gi KIM, Seokwon KIM, Se Hyun KIM, Tae Hyung KIM, Suk Jo CHOI, Dong Hyun CHO
  • Publication number: 20180201751
    Abstract: The present invention relates to a carbon composite material and a method for producing the same, and more particularly, to a carbon composite material capable of improving electrostatic dispersibility and flame retardancy, and a method for producing the same. The carbon composite material according to the present invention can be effectively applied to products requiring conductivity and flame retardancy.
    Type: Application
    Filed: October 17, 2016
    Publication date: July 19, 2018
    Inventors: Seokwon KIM, Se Hyun KIM, Tae Hyung KIM, Pyeong-Gi KIM, Suk Jo CHOI, Dong Hyun CHO