Patents by Inventor Hyeon Jong Park

Hyeon Jong Park 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: 12162964
    Abstract: A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a derived unit from a modifier, the modifier including three or more alkoxy groups bonded to silicon, a non-functional chain forming a silicon-carbon bond at one side of the derived unit from a modifier and including a repeating unit derived from a conjugated diene-based monomer, and a functional chain forming a silicon-carbon bond at the other side of the derived unit from a modifier and including two or more derived units from an N-functional group-containing monomer, wherein the rate of change of mooney viscosity is 20% or less.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 10, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hwan Oh, He Seung Lee, Hyeon Jong Park, Hye Jung Shin
  • Patent number: 12116439
    Abstract: A modifying conjugated diene-based polymer, a method for preparing the same and a method for preparing the same are disclosed, herein. The modified conjugated diene-based polymer has excellent affinity with a filler and may improve the compounding properties of the conjugated diene-based polymer. In some embodiments, a modified conjugated diene-based polymer including a repeating unit derived from a conjugated diene-based monomer and a functional group derived from a modifier represented by Formula 1 in at least one terminal thereof.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: October 15, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Hyeon Jong Park, No Ma Kim, Ro Mi Lee
  • Publication number: 20230093015
    Abstract: The present disclosure relates to a modified conjugated diene-based polymer and a rubber composition including the same, and provides a modified conjugated diene-based polymer including a first polymer chain and a second polymer chain, including a repeating unit derived from a conjugated diene-based monomer and a derived unit from a nitrogen-containing modification initiator, in each, wherein the first polymer chain includes a derived unit from an aminoalkoxysilane-based modifier in at least one terminal, the second polymer chain includes a derived unit from an aminoepoxy-based modifier in at least one terminal, and the aminoalkoxysilane-based modifier includes 6 or more alkoxy groups in a molecule.
    Type: Application
    Filed: August 4, 2021
    Publication date: March 23, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyeon Jong PARK, Suk Joon YOO, No Ma KIM
  • Publication number: 20230091284
    Abstract: The present disclosure relates to a modified conjugated diene-based polymer and a rubber composition including the same, and provides a modified conjugated diene-based polymer including: a derived unit from a modification initiator; a repeating unit derived from a conjugated diene-based monomer; and a derived unit from a modifier, and satisfying the conditions of i) a weight average molecular weight: 1,000,000 g/mol or more, ii) a glass transition temperature: ?40° C. or less, iii) the N content: 70 ppm or more based on a total weight of the polymer, iv) the Si content: 70 ppm or more based on a total weight of the polymer, and v) a coupling number: greater than 2.5 and less than 5.0.
    Type: Application
    Filed: August 4, 2021
    Publication date: March 23, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Suk Joon YOO, Hyeon Jong PARK, No Ma KIM
  • Publication number: 20220213236
    Abstract: A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a derived unit from a modifier, the modifier including three or more alkoxy groups bonded to silicon, a non-functional chain forming a silicon-carbon bond at one side of the derived unit from a modifier and including a repeating unit derived from a conjugated diene-based monomer, and a functional chain forming a silicon-carbon bond at the other side of the derived unit from a modifier and including two or more derived units from an N-functional group-containing monomer, wherein the rate of change of mooney viscosity is 20% or less.
    Type: Application
    Filed: September 11, 2020
    Publication date: July 7, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jung Hwan Oh, He Seung Lee, Hyeon Jong Park, Hye Jung Shin
  • Publication number: 20220204674
    Abstract: The present invention relates to a modified conjugated diene-based polymer having excellent processability and good tensile strength and viscoelasticity, and a rubber composition including the same, and provides a modified conjugated diene-based polymer including a first chain including a repeating unit derived from a conjugated diene-based monomer; a second chain including a repeating unit derived from a compound represented by Formula 1; and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the modifier.
    Type: Application
    Filed: September 11, 2020
    Publication date: June 30, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ho Young Lee, Jae Moon Jun, Jung Hwan Oh, Hye Jung Shin, Kyoung Hwan Oh, Hyun Jun Kim, Hyeon Jong Park
  • Publication number: 20220162363
    Abstract: A modified conjugated diene-based polymer, a rubber composition including the same, and a method of making the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a first chain including a repeating unit derived from a conjugated diene-based monomer, a second chain including a repeating unit derived from a compound represented by Formula 1, and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the alkoxysilane-based modifier.
    Type: Application
    Filed: September 11, 2020
    Publication date: May 26, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Youk Reol Na, Ro Mi Lee, Suk Joon Yoo, Geun Seung Baek, Hye Jung Shin, You Seok Seo, Hyeon Jong Park, Hye Young Kim
  • Publication number: 20220056182
    Abstract: A modifying conjugated diene-based polymer, a method for preparing the same and a method for preparing the same are disclosed, herein. The modified conjugated diene-based polymer has excellent affinity with a filler and may improve the compounding properties of the conjugated diene-based polymer. In some embodiments, a modified conjugated diene-based polymer including a repeating unit derived from a conjugated diene-based monomer and a functional group derived from a modifier represented by Formula 1 in at least one terminal thereof.
    Type: Application
    Filed: September 23, 2020
    Publication date: February 24, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hyeon Jong Park, No Ma Kim, Ro Mi Lee