Patents by Inventor Jeong Ju MOON

Jeong Ju MOON 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).

  • Publication number: 20240002634
    Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) terephthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.
    Type: Application
    Filed: November 23, 2021
    Publication date: January 4, 2024
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Eun Suk KIM, Seung Taek WOO, Woo Hyuk CHOI
  • Patent number: 11851547
    Abstract: A plasticizer composition which includes a lower non-hybrid-type cyclohexane triester, a lower hybrid-type cyclohexane triester, a higher hybrid-type cyclohexane triester, and a higher non-hybrid-type cyclohexane triester, wherein the alkyl groups of the cyclohexane triesters are a combination of C3-C6 alkyl groups and C7-C10 alkyl groups. When the plasticizer composition is applied to a resin, stress resistance and mechanical properties are maintained at an equivalent level or improved, migration properties, volatile loss characteristics, and plasticization efficiency are balanced, and light resistance and heat resistance are significantly improved.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 26, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong, Woo Hyuk Choi
  • Publication number: 20230407049
    Abstract: The present disclosure is characterized in comprising an isophthalate-based composition and a citrate-based composition, wherein the isophthalate-based composition comprises di(2-ethylhexyl) isophthalate, hexyl(2-ethylhexyl) isophthalate and dihexyl isophthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the isophthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.
    Type: Application
    Filed: January 28, 2022
    Publication date: December 21, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Eun Suk KIM, Seung Taek WOO, Woo Hyuk CHOI
  • Patent number: 11840510
    Abstract: The present disclosure relates to a manufacturing system and a manufacturing method which are capable of continuously manufacturing an ester-based composition, and has a technical feature of being capable of manufacturing an ether-based composition continuously, economically, and efficiently.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: December 12, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Sung Kyu Lee, Hyoung Jun, Chan Hyu Jin, Jeong Ju Moon, Joo Ho Kim
  • Patent number: 11827767
    Abstract: Provided is a plasticizer composition comprising a cyclohexane polyester-based substance which is a compound of Chemical Formula 1 as a plasticizer: in combination with a perhydride comprising a compound of Chemical Formula 2 having a smaller number of ester groups than the cyclohexane polyester-based substance: Also provided are resin compositions containing the plasticizer composition and methods of preparing the plasticizer composition.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: November 28, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Woo Hyuk Choi
  • Publication number: 20230374262
    Abstract: The present invention relates to a triester-based plasticizer composition including a product derived from the esterification of a carboxylic acid composition having a hexanoic acid isomer mixture and benzoic acid, and a trihydric alcohol. If the plasticizer composition is applied to a resin, migration resistance and volatile loss may be maintained at equal levels, and mechanical properties, absorption rate, stress migration and plasticization efficiency may be markedly improved in contrast to a conventional plasticizer.
    Type: Application
    Filed: June 22, 2022
    Publication date: November 23, 2023
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Eun Suk KIM, Joo Ho KIM, Seung Taek WOO
  • Publication number: 20230374263
    Abstract: The present invention relates to a triester-based plasticizer composition characterized in comprising a product derived from the esterification of a hexanoic acid isomer mixture and a trihydric alcohol, wherein the degree of branching of the hexanoic acid isomer mixture is 2.0 or less. If the plasticizer composition is applied to a resin, migration resistance and volatile loss may be maintained to equal levels, and mechanical properties, absorption rate, stress migration and plasticization efficiency may be markedly improved in contrast to a case applying the conventional plasticizer.
    Type: Application
    Filed: June 22, 2022
    Publication date: November 23, 2023
    Inventors: Hyun Kyu Kim, Joo Ho Kim, Woo Hyuk Choi, Jeong Ju Moon, Seok Ho Jeong
  • Publication number: 20230340228
    Abstract: The present invention is characterized in including a dihexyl benzene dicarboxylate having an alkyl group derived from an isomer mixture of hexyl alcohol, in the case of applying to a resin, stress resistance and mechanical properties may be maintained to the same or higher levels, and plasticization efficiency may be markedly improved while maintaining the balance among tensile strength, elongation rate and migration resistance.
    Type: Application
    Filed: November 23, 2021
    Publication date: October 26, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Joo Ho KIM, Woo Hyuk CHOI, Jeong Ju MOON, Seok Ho JEONG
  • Patent number: 11795299
    Abstract: Provided is a plasticizer composition including a cyclohexane-1,2-diester-based material of Formula 1 and a trimellitate-based material of Formula 2: wherein in Formula 1 and Formula 2, R1 to R5 are each independently an alkyl group of 8 to 10 carbon atoms.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 24, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Woo Hyuk Choi, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20230331955
    Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) isophthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.
    Type: Application
    Filed: November 23, 2021
    Publication date: October 19, 2023
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Eun Suk KIM, Seung Taek Woo, Woo Hyuk CHOI
  • Publication number: 20230303476
    Abstract: The present invention relates to a method for continuously preparing an ester-based composition, the method increasing a preparation yield by optimizing pressure of a reactor as a process variable of each reactor of a reaction unit in which a plurality of reactors are connected in series.
    Type: Application
    Filed: September 17, 2021
    Publication date: September 28, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Eun Suk KIM, Yun Gon HEO, Joo Ho KIM
  • Publication number: 20230303475
    Abstract: The present invention provides a method for preparing an ester-based material, the method including a step in which in a batch reactor, under a catalyst, at least one polycarboxylic acid selected from the group consisting of a terephthalic acid, a phthalic acid, an isophthalic acid, a cyclohexane dicarboxylic acid, a cyclohexane tricarboxylic acid, a trimellitic acid, and citric acid reacts with at least one mono-alcohol having 3 to 12 alkyl carbon atoms, wherein pressure in the reactor is configured such that the pressure at the early stage is 0.3 barg to 1.0 barg and the pressure at the latter stage is 0 barg to 0.5 barg, the pressure at the early stage being greater than the pressure at the latter stage, and the early and latter stages are divided based on any one of the time points when reaction conversion rate is 30% to 90%.
    Type: Application
    Filed: September 17, 2021
    Publication date: September 28, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Eun Suk KIM, Yun Gon HEO
  • Patent number: 11767420
    Abstract: A plasticizer composition and a resin composition including the plasticizer composition. The resin composition addresses limitations associated with conventional plasticizers by improving various properties such as plasticization efficiency and mechanical properties including migration properties, volatile loss, tensile strength and elongation rate. The plasticizer composition is also capable of improving properties such as elongation retention and cold tolerance.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: September 26, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20230295071
    Abstract: The present invention relates to a method for preparing an ester-based composition, the method configured to sequentially operate a plurality of batch reactors and control pressure in each reactor, and the ester-based composition is semi-continuously prepared to have high productivity as well as stability of the batch reactors.
    Type: Application
    Filed: September 17, 2021
    Publication date: September 21, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Eun Suk KIM, Joo Ho KIM
  • Patent number: 11753402
    Abstract: Provided is a plasticizer composition, including: a cyclohexane-1,2-diester-based substance in which two alkyl groups are bonded to the ester groups, and the alkyl groups each independently are a C4 to C12 alkyl group; and an epoxidized alkyl ester composition comprising one or more compounds of the following Chemical Formula 1: wherein in Chemical Formula 1: R1 is a C8 to C20 alkyl group comprising one or more epoxy groups; and R2 is a C4 to C10 alkyl group.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: September 12, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim
  • Patent number: 11746079
    Abstract: Provided is a plasticizer composition, comprising: a cyclohexane-1,4-diester-based substance of the following Chemical Formula 1; an epoxidized alkyl ester composition comprising one or more compounds of the following Chemical Formula 2; and a citrate-based substance of the following Chemical Formula 3: wherein in Chemical Formula 1 to Chemical Formula 3; R1 and R2 each independently are a C8 alkyl group; R3 is a C8 to C20 alkyl group comprising one or more epoxy groups; and R4 to R7 each independently are a C4 to C10 alkyl group.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: September 5, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Seok Ho Jeong, Yun Ki Cho, Joo Ho Kim
  • Patent number: 11732107
    Abstract: The present invention relates to a plasticizer composition in which three types of cyclohexane 1,4-diester-based compounds prepared through trans-esterification and hydrogenation are mixed, wherein alkyl substituents of the dicarboxylate are a 2-ethylhexyl group and a butyl group or an isobutyl group, which has fewer carbon atoms than the 2-ethylhexyl group, so that the plasticizer composition may exhibit excellent properties in terms of stress resistance, migration resistance, plasticization efficiency, and the like while maintaining an excellent level of tensile strength and elongation rate, when used for a resin composition.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 22, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Seok Ho Jeong, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim
  • Publication number: 20230242737
    Abstract: The present invention relates to a plasticizer composition including a lower alkyl-based citrate and a higher alkyl-based citrate simultaneously as citrates, wherein effects are achieved through controlling the ratio of hybrid and nonhybrid types, and the ratio of lower alkyl and higher alkyl, and if the plasticizer composition is applied in a resin, stress resistance and mechanical properties may be maintained to the equal or better levels, balance between migration and loss properties, and plasticization efficiency may be achieved, and light resistance and heat resistance may be markedly improved.
    Type: Application
    Filed: August 6, 2021
    Publication date: August 3, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Joo Ho KIM, Woo Hyuk CHOI, Jeong Ju MOON, Seok Ho JEONG
  • Patent number: 11708477
    Abstract: A plasticizer composition including a cyclohexane-1,2-diester-based material and diisononyl terephthalate. The plasticizer composition is superior to existing phthalate-based plasticizer products in terms of plasticization efficiency, volatile loss, and heat aging elongation retention rate, and can replace phthalate-based plasticizer products.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: July 25, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Joo Ho Kim, Jeong Ju Moon
  • Patent number: 11702529
    Abstract: A plasticizer composition, and a resin composition including the same. The plasticizer composition includes 70 to 99 wt % of a first plasticizer including a terephthalate-based material and a citrate-based material in a specific weight ratio; and 1 to 30 wt % of a second plasticizer including an epoxidized alkyl ester composition. The plasticizer composition has enhanced physical properties, such as thermal stability and light resistance. In addition, the plasticizer composition has stable and improved tensile and elongation properties, migration resistance and volatile loss.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 18, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong, Yun Ki Cho