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: 20230174744
    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: June 8, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Woo Hyuk CHOI
  • Patent number: 11629116
    Abstract: Provided is a plasticizer composition including: a cyclohexane-1,2-diester-based substance of the following Chemical Formula 1; and a citrate-based substance of the following Chemical Formula 2: wherein in Chemical Formula 1 and Chemical Formula 2: R1 and R2 each independently are a C8 to C10 alkyl group; and R3 to R5 each independently are a C5 to C10 alkyl group.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 18, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Seok Ho Jeong, Woo Hyuk Choi, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim
  • Patent number: 11597815
    Abstract: Provided herein are a plasticizer composition, a resin composition, and a method of preparing the plasticizer composition. A plasticizer composition capable of enhancing poor physical properties occurring due to structural limitations and enhancing physical properties such as tensile strength, migration resistance, volatile loss, and the like, which are required when used as a plasticizer of a resin composition, and a resin composition including the same may be provided.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: March 7, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Patent number: 11572453
    Abstract: The present invention relates to a plasticizer composition and a resin composition including the same. The compositions comprise a terephthalate-based material, a dibenzoate-based material, and a citrate. The compositions and methods have a weight ratio of the terephthalate-based material to the benzoate-based material of 99:1 to 1:99. The citrate-based material is included at 1 to 80 parts by weight with respect to 100 parts by weight of the total weight of the terephthalate-based material and the dibenzoate-based material.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: February 7, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Patent number: 11560460
    Abstract: The present invention relates to a plasticizer composition, a resin composition, and a method of preparing the plasticizer composition. The plasticizer composition comprising an isophthalate-based material; and an epoxy-based alkyl ester compound represented by Chemical Formula 1.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: January 24, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Patent number: 11512166
    Abstract: The present disclosure relates to a method for continuously manufacturing an ester-based composition and a manufacturing system therefor, the method improving a manufacturing yield by optimizing process variables of each reactor of a reaction unit in which a plurality of reactors are connected in series.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 29, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Hyoung Jun, Sung Kyu Lee, Chan Hyu Jin, Joo Ho Kim
  • Patent number: 11499030
    Abstract: The present invention relates to a plasticizer composition which includes a terephthalate-based plasticizer and a trimellitate-based plasticizer, selectively includes a citrate-based plasticizer, and does not contain epoxidized oil, and particularly, a plasticizer composition capable of improving physical properties including migration resistance, tensile strength, elongation rate, retention characteristics and low-temperature resistance, required for use as a plasticizer of a resin composition, by improving the problems associated with a conventional plasticizer; and a resin composition including the same.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 15, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Seok Ho Jeong, Mi Yeon Lee, Joo Ho Kim
  • Publication number: 20220325070
    Abstract: Provided are a plasticizer composition and a resin composition, and a preparation method thereof, wherein the present invention may provide a plasticizer, which may improve physical properties, such as plasticizing efficiency, migration, tensile strength, elongation rate, stress resistance, and light resistance, required for a sheet formulation when used as a plasticizer of a resin composition, by improving poor physical properties that have been ascribed to structural limitations, and a resin composition including the plasticizer.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 13, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Patent number: 11427527
    Abstract: Provided is a citrate-based plasticizer and a resin composition including the same. The citrate-based plasticizer includes one or more citrates having alkyl groups with 7 carbon atoms. The citrate-based plasticizer can solve limitations on migration and volatile loss inherent in the conventional plasticizer and limitations on characteristics of processing such as plasticizing efficiency and absorption rate.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: August 30, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Joo Ho Kim, Jeong Ju Moon
  • Patent number: 11427699
    Abstract: A plasticizer composition, a resin composition and methods of preparing the same are disclosed. The compositions and methods comprise a terephthalate-based material, which has two alkyl groups bound to a diester group, and a dibenzoate-based material. The compositions and methods have a weight ratio of the terephthalate-based material to the dibenzoate-based material of 99:1 to 1:99.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: August 30, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20220267567
    Abstract: The present invention relates to a tetraester-based plasticizer composition characterized in including a product derived from esterification reaction of an isomer mixture of hexanoic acid and a tetraol, wherein the degree of branching of the isomer mixture of hexanoic acid is 2.0 or less. If the plasticizer composition is applied to a resin, plasticization efficiency and absorption rate may be maintained to equal or better levels when compared to a case applying the conventional plasticizer, and mechanical properties, migration resistance, stress migration and loss properties may be markedly improved.
    Type: Application
    Filed: March 31, 2021
    Publication date: August 25, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu Kim, Jeong Ju Moon, Seok Ho Jeong, Woo Hyuk Choi
  • Publication number: 20220251336
    Abstract: Provided are a plasticizer composition and a resin composition, and a preparation method thereof, wherein the present invention may provide a plasticizer, which may improve physical properties, such as plasticizing efficiency, migration, tensile strength, elongation rate, stress resistance, and light resistance, required for a sheet formulation when used as a plasticizer of a resin composition, by improving poor physical properties that have been ascribed to structural limitations, and a resin composition including the plasticizer.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Patent number: 11407882
    Abstract: Provided are a plasticizer composition, a resin composition and a method of preparing the same. Particularly, a plasticizer comprising a cyclohexane 1,4-diester based material and a citrate-based material. The plasticizer is capable of improving physical properties such as plasticization efficiency, migration, tensile strength, elongation rate, stress migration and light fastness, which are required for sheet formulations, when used as a plasticizer for the resin composition by improving poor physical properties generated due to a structural limitation thereof, and a resin composition including the same are provided.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: August 9, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20220242814
    Abstract: A method of preparing a raw material mixture by mixing a dicarboxylic acid and a C4-10 mono-alcohol, and obtaining a product mixture including a diester-based material and water by reacting the raw material mixture in the presence of a catalyst. In the first step, at least one among a reactor temperature (Condition A), an alcohol input amount (Condition B), and an inert gas input amount (Condition C) is controlled, and the distinction between a beginning stage of a reaction and an ending stage of the reaction in Conditions A to C above is based on a reaction control point. The reaction control point is a point of time selected at which a conversion rate of the reaction is between 10% and 80%. This method produces a diester-based material with improved reactivity and improved energy expenditure.
    Type: Application
    Filed: September 24, 2020
    Publication date: August 4, 2022
    Inventors: Jeong Ju Moon, Hyun Kyu Kim, Joo Ho Kim, Yun Ki Cho, Seok Ho Jeong, Woo Hyuk Choi
  • Publication number: 20220227961
    Abstract: The present invention relates to a plasticizer composition, including a lower alkyl-based citrate and a higher alkyl-based citrate at the same time, as citrate, wherein the ratio of a hybrid type to a non-hybrid type and the ratio of the lower alkyl groups to the higher alkyl groups are controlled so that effects are achieved. When applying the plasticizer composition to a resin, stress resistance and mechanical properties can be maintained at an equal or higher level, the migration and volatile loss properties and the plasticization efficiency can be balanced, and the light resistance and heat resistance can be remarkably improved.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 21, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Seok Ho JEONG, Woo Hyuk CHOI, Jeong Ju MOON, Joo Ho KIM
  • Publication number: 20220220281
    Abstract: The present invention relates to a plasticizer composition, including a lower alkyl-based citrate and a higher alkyl-based citrate at the same time, as citrate, wherein the ratio of a hybrid type to a non-hybrid type and the ratio of the lower alkyl groups to the higher alkyl groups are controlled so that effects are achieved. When applying the plasticizer composition to a resin, stress resistance and mechanical properties can be maintained at an equal or higher level, the migration and volatile loss properties and the plasticization efficiency can be balanced, and the light resistance and heat resistance can be remarkably improved.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 14, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Seok Ho JEONG, Woo Hyuk CHOI
  • Publication number: 20220195143
    Abstract: A citrate-based plasticizer composition including a citrate-based composition, and a citrate-based composition including one or more citrates. The citrates are characterized in having an alkyl group derived from an isomer mixture of hexyl alcohol having a degree of branching of 2.0 or less. Stress resistance and mechanical properties can be maintained at values equal or better than conventional plasticizers, the balance between migration and volatile properties and plasticization efficiency can be maintained, and light resistance and heat resistance can be markedly improved by applying the citrate-based plasticizer composition to a resin.
    Type: Application
    Filed: July 29, 2020
    Publication date: June 23, 2022
    Inventors: Hyun Kyu Kim, Seok Ho Jeong, Jeong Ju Moon, Woo Hyuk Choi, Yun Ki Cho, Joo Ho Kim
  • Publication number: 20220185988
    Abstract: The present disclosure relates to a plasticizer composition characterized in having alkyl groups derived from an isomer mixture of hexyl alcohol with the degree of branching of less than 2.0 as a cyclohexane triester. When the plasticizer composition is applied to a resin, stress resistance and mechanical properties may be maintained to equal or better levels, migration and loss properties and plasticization efficiency may keep balance, and light resistance and heat resistance may be markedly improved.
    Type: Application
    Filed: April 29, 2020
    Publication date: June 16, 2022
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Woo Hyuk CHOI, Joo Ho KIM
  • Patent number: 11359071
    Abstract: Provided are a plasticizer composition and a resin composition, and a preparation method thereof. The plasticizer includes a terephthalate-based material and a citrate-based material, which improves physical properties, such as plasticizing efficiency, migration, tensile strength, elongation rate, stress resistance and light resistance, required for a sheet formulation when used as a plasticizer of a resin composition.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: June 14, 2022
    Inventors: Hyun Kyu Kim, Mi Yeon Lee, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20220177672
    Abstract: A plasticizer composition including a citrate-based material and an epoxidized oil, and the plasticizer composition capable of maintaining an excellent plasticization efficiency and providing an improved mechanical properties and stress resistance when compared with conventional phthalate-based plasticizer products.
    Type: Application
    Filed: June 11, 2020
    Publication date: June 9, 2022
    Inventors: Hyun Kyu Kim, Seok Ho Jeong, Jeong Ju Moon, Woo Hyuk Choi