Patents by Inventor Won-Hee Kim

Won-Hee 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: 12221458
    Abstract: The present invention relates to an organic borate-based catalyst including a compound represented by the following Formula 1 and a hydroxyl group-containing compound, a method for preparing an isobutene oligomer using the same and an isobutene oligomer prepared thereby: wherein R0, R1 to R4, o, p, q and r are described therein.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 11, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Gyeong Shin Choi, Ji Hyun Choi, Won Hee Kim, Jin Lee, Dong Hyun Jo, Jeong Sik Kim
  • Patent number: 12202924
    Abstract: A method for separating polybutene, the method including: (1) introducing a polybutene solution into a distillation column, the solution including polybutene, a halogenated hydrocarbon solvent, and a non-polar hydrocarbon solvent and having a viscosity of 1 cp to 50 cp measured at 25° C. using a rotational viscometer; (2) collecting an upper stream including the halogenated hydrocarbon solvent and a portion of the non-polar hydrocarbon solvent from an upper portion of the distillation column, and collecting a lower stream including the polybutene and a remaining portion of the non-polar hydrocarbon solvent from a lower portion of the distillation column, where the lower stream has a viscosity of 10 cp to 150 cp; and (3) separating the remaining portion of the non-polar hydrocarbon solvent and the polybutene from the lower stream.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 21, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Woo Sung Hwang, Jeong Seok Lee, Won Hee Kim, Hye Mi Kim, Gyeong Shin Choi, Dong Hyun Jo
  • Patent number: 11987651
    Abstract: A catalyst composition and a method for preparing a hydrocarbon resin using the same are disclosed herein. In some embodiments, a catalyst composition includes an oxonium ion-based catalyst and an additive. In some embodiments, a method includes polymerizing a monomer mixture in the presence of a catalyst composition, wherein the monomer mixture comprises a C5 unsaturated hydrocarbon monomer, a C9 unsaturated hydrocarbon monomer, or a mixture thereof, wherein the catalyst composition comprising a catalyst represented by the following Formula 1 and an additive represented by the following Formula 2.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 21, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Gyeong Shin Choi, Won Hee Kim, Young Soo Ko, Ha Young Jung, Ann Chaise Carino
  • Publication number: 20240154185
    Abstract: A battery management apparatus includes a communication unit for communicating with a plurality of sensors and a controller for setting identification information of each of the plurality of sensors and obtaining base line information of each of the plurality of sensors based on the identification information.
    Type: Application
    Filed: July 11, 2022
    Publication date: May 9, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Won Hee KIM
  • Publication number: 20230285928
    Abstract: A reactor is disclosed herein. In some embodiments, a reactor comprises a reactor tank having an accommodation space therein for performing a polymerization reaction of a reactive fluid, an outer refrigerant jacket positioned outside the reactor tank and having a refrigerant flowing therethrough, and an inner refrigerant jacket inside the reactor tank and having a refrigerant flowing therethrough. The refrigerants of the outer refrigerant jacket and the inner refrigerant jacket may flow in opposite directions to each other.
    Type: Application
    Filed: September 7, 2021
    Publication date: September 14, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Seong Beom Heo, Jin Lee, Jong Yeol Baek, Won Hee Kim
  • Patent number: 11746165
    Abstract: The present invention provides a method for preparing a polybutene oligomer including a step of oligomerizing a polymerization solution including a halogenated hydrocarbon solvent, a nonpolar hydrocarbon solvent and an isobutene monomer in the presence of an organometal catalyst.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 5, 2023
    Inventors: Dong Hyun Jo, Jin Lee, Won Hee Kim, Gyeong Shin Choi
  • Patent number: 11718632
    Abstract: The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-based polymer using the same.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: August 8, 2023
    Inventors: Hee Jeong Kim, Gyeong Shin Choi, Won Hee Kim
  • Publication number: 20230159673
    Abstract: The present invention relates to a method for halogenating an isobutene-isoprene copolymer by using an organic hypochlorite. By using the method of the present invention, a hydrogen halide byproduct may be rapidly recycled into a halogenating agent and reused. As a result, a halogenated isobutene-isoprene copolymer having the high content of secondary allyl halogen functional groups may be prepared by increasing the participation ratio of the halogenating agent in reaction and suppressing the rearrangement of the secondary allyl halogen functional groups. The halogenated isobutene-isoprene copolymer prepared according to the present invention may be effectively used in the crosslinking reaction with other rubber, and is industrially useful.
    Type: Application
    Filed: September 15, 2021
    Publication date: May 25, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Jong Yeol Baek, Moon Gon Jeong, Gyeong Shin Choi, Won Hee Kim
  • Publication number: 20230099302
    Abstract: The present invention relates to a catalyst composition including an imidazolinium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-isoprene copolymer using the same.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 30, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Jeong Sik Kim, Hee Jeong Kim, Gyeong Shin Choi, Won Hee Kim
  • Patent number: 11578152
    Abstract: The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: February 14, 2023
    Inventors: Gyeong Shin Choi, Dong Hyun Jo, Won Hee Kim, Seung Young Park, Hyun Taek Oh
  • Publication number: 20220289875
    Abstract: The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom: wherein R, R1 to R4, and o, p, q and r are described herein.
    Type: Application
    Filed: April 1, 2021
    Publication date: September 15, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hyun Choi, Gyeong Shin Choi, Won Hee Kim, Jong Yeol Baek, Hee Jeong Kim
  • Publication number: 20220275006
    Abstract: The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-based polymer using the same.
    Type: Application
    Filed: March 30, 2021
    Publication date: September 1, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hee Jeong Kim, Gyeong Shin Choi, Won Hee Kim
  • Patent number: 11414504
    Abstract: The present invention provides a method for preparing a transition metal complex, including a step of preparing a dispersion including a transition metal salt or alkoxide, and a coordinating solvent; and a step of reacting an organic borate-based compound containing a carbon-based, silyl-based or amine-based cation and a borate-based bulky anion, with the dispersion, wherein the transition metal is one or more selected from the metals in group 7 to group 12.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 16, 2022
    Inventors: Gyeong Shin Choi, Dong Hyun Jo, Hyun Taek Oh, Won Hee Kim, Seung Young Park
  • Publication number: 20220204533
    Abstract: The present invention relates to an organic borate-based catalyst including a compound represented by the following Formula 1 and a hydroxyl group-containing compound, a method for preparing an isobutene oligomer using the same and an isobutene oligomer prepared thereby: wherein R0, R1 to R4, o, p, q and r are described therein.
    Type: Application
    Filed: August 19, 2020
    Publication date: June 30, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Gyeong Shin Choi, Ji Hyun Choi, Won Hee Kim, Jin Lee, Dong Hyun Jo, Jeong Sik Kim
  • Patent number: 11370855
    Abstract: The present invention provides a method for preparing a butene oligomer including a step of oligomerizing a polymerization solution including a halogenated hydrocarbon solvent, a nonpolar hydrocarbon solvent and an isobutene monomer in the presence of an organometal catalyst.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 28, 2022
    Inventors: Jin Lee, Dong Hyun Jo, Won Hee Kim, Gyeong Shin Choi
  • Publication number: 20220195079
    Abstract: The present invention relates to a catalyst composition including an oxonium ion-based catalyst represented by the following Formula 1, and an additive, and a method for preparing polyisobutene using the same: wherein R, R1 to R4, and o, p, q and r are described herein.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 23, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Dong Hyun Jo, Seong Beom Heo, Won Hee Kim, Jin Lee, Gyeong Shin Choi, Hee Jeong Kim
  • Publication number: 20220127393
    Abstract: The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an additive, and a method for preparing a hydrocarbon resin using the same.
    Type: Application
    Filed: August 25, 2020
    Publication date: April 28, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Gyeong Shin Choi, Won Hee Kim, Young Soo Ko, Ha Young Jung, Ann Chaise Carino
  • Publication number: 20220025079
    Abstract: A method for separating polybutene, the method including: (1) introducing a polybutene solution into a distillation column, the solution including polybutene, a halogenated hydrocarbon solvent, and a non-polar hydrocarbon solvent and having a viscosity of 1 cp to 50 cp measured at 25° C. using a rotational viscometer; (2) collecting an upper stream including the halogenated hydrocarbon solvent and a portion of the non-polar hydrocarbon solvent from an upper portion of the distillation column, and collecting a lower stream including the polybutene and a remaining portion of the non-polar hydrocarbon solvent from a lower portion of the distillation column, where the lower stream has a viscosity of 10 cp to 150 cp; and (3) separating the remaining portion of the non-polar hydrocarbon solvent and the polybutene from the lower stream.
    Type: Application
    Filed: January 17, 2020
    Publication date: January 27, 2022
    Inventors: Woo Sung HWANG, Jeong Seok LEE, Won Hee KIM, Hye Mi KIM, Gyeong Shin CHOI, Dong Hyun JO
  • Patent number: 11198777
    Abstract: The present invention relates to a modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer prepared by continuous polymerization and having remarkable processability, narrow molecular weight distribution and excellent physical properties, and a rubber composition including the same.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: December 14, 2021
    Inventors: Hyoung Woo Lee, Won Hee Kim, Seong Du Lee
  • Patent number: 11155655
    Abstract: The present invention provides an organometal catalyst having a cationic transition metal complex and a borate-based bulky anion, a method for preparing the same, and a method for preparing an oligomer using the same.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: October 26, 2021
    Inventors: Gyeong Shin Choi, Dong Hyun Jo, Hyun Taek Oh, Won Hee Kim, Seung Young Park