Patents by Inventor Ji-Yoon JEONG

Ji-Yoon JEONG 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: 11845837
    Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 19, 2023
    Inventors: Dae Woo Nam, Jun Kyu Kim, Hyung Ki Yoon, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 11814489
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 14, 2023
    Inventors: Hyung Ki Yoon, Yeon Woo Hong, Seong Beom Heo, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 11434332
    Abstract: A super absorbent polymer according to the present invention has an excellent discoloration resistance characteristic even under high temperature/high humidity conditions, while maintaining excellent absorption performance, and is preferably used for hygienic materials such as diapers, and thus can exhibit excellent performance.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: September 6, 2022
    Inventors: Dae Woo Nam, Seon Jung Jung, Tae Hwan Jang, Jun Kyu Kim, Seong Beom Heo, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Ji Yoon Jeong, Hyung Ki Yoon
  • Patent number: 11406962
    Abstract: The present invention relates to a superabsorbent polymer which exhibits more improved liquid permeability while maintaining excellent absorption performance, and suppresses aggregation and caking of particles even under high temperature/high humidity conditions, and to a method for producing the same. The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further crosslinked via a surface cross-linking agent, wherein the super absorbent polymer includes aluminum sulfate dispersed in the surface crosslinked layer and alumina dispersed on the surface crosslinked layer.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: August 9, 2022
    Inventors: Su Jin Kim, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 11260364
    Abstract: The super absorbent polymer according to the present invention has reduced 3-hour saline solution re-wet while having a high absorption rate and absorption against pulp, and thus can be used for hygienic materials such as diapers, thereby exhibiting excellent performance.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: March 1, 2022
    Inventors: Ji Yoon Jeong, Jun Kyu Kim, Dae Woo Nam, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Hyung Ki Yoon
  • Patent number: 11225556
    Abstract: A super absorbent polymer produced by the preparation method of the super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 18, 2022
    Inventors: Bo Hyun Seong, Dae Woo Nam, Jun Kyu Kim, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong, Tae Hwan Jang
  • Patent number: 11046819
    Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: June 29, 2021
    Inventors: Dae Woo Nam, Jun Kyu Kim, Hyung Ki Yoon, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20210189074
    Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Jun Kyu Kim, Hyung Ki Yoon, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20210163693
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyung Ki Yoon, Yeon Woo Hong, Seong Beom Heo, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 11020725
    Abstract: A superabsorbent polymer according to the present invention has excellent initial absorption properties, and thus it may be used in sanitary materials such as diapers, etc., thereby exhibiting excellent performances.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 1, 2021
    Inventors: Jun Kyu Kim, Hyung Ki Yoon, Dae Woo Nam, Bo Hyun Seong, Yeon Woo Hong, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong, Tae Hwan Jang, Su Jin Kim
  • Patent number: 10961356
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 30, 2021
    Inventors: Hyung Ki Yoon, Yeon Woo Hong, Seong Beom Heo, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 10843170
    Abstract: A superabsorbent polymer having high centrifuge retention capacity and absorption rate prepared by using a particular foam stabilizer and a polymerization initiator. The foam stabilizer includes a sucrose ester and a polyalkylene oxide, and polymerization initiator includes a photoinitiator and a cationic azo-based initiator.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: November 24, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yeon Woo Hong, Seong Beom Heo, Hyung Ki Yoon, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20200122119
    Abstract: The super absorbent polymer according to the present invention has reduced 3-hour saline solution re-wet while having a high absorption rate and absorption against pulp, and thus can be used for hygienic materials such as diapers, thereby exhibiting excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Ji Yoon Jeong, Jun Kyu Kim, Dae Woo Nam, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Hyung Ki Yoon
  • Publication number: 20200010624
    Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 9, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Jun Kyu Kim, Hyung Ki Yoon, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20190308171
    Abstract: The present invention relates to a superabsorbent polymer which exhibits more improved liquid permeability while maintaining excellent absorption performance, and suppresses aggregation and caking of particles even under high temperature/high humidity conditions, and to a method for producing the same. The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further crosslinked via a surface cross-linking agent, wherein the super absorbent polymer includes aluminum sulfate dispersed in the surface crosslinked layer and alumina dispersed on the surface crosslinked layer.
    Type: Application
    Filed: October 27, 2017
    Publication date: October 10, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Su Jin Kim, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20190248963
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.
    Type: Application
    Filed: November 22, 2017
    Publication date: August 15, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Hyung Ki Yoon, Yeon Woo Hong, Seong Beom Heo, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20190217272
    Abstract: A superabsorbent polymer having high centrifuge retention capacity and absorption rate prepared by using a particular foam stabilizer and a polymerization initiator. The foam stabilizer includes a sucrose ester and a polyalkylene oxide, and polymerization initiator includes a photoinitiator and a cationic azo-based initiator.
    Type: Application
    Filed: February 2, 2018
    Publication date: July 18, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Yeon Woo HONG, Seong Beom HEO, Hyung Ki YOON, Dae Woo NAM, Tae Hwan JANG, Jun Kyu KIM, Bo Hyun SEONG, Su Jin KIM, Seon Jung JUNG, Ji Yoon JEONG
  • Publication number: 20190134603
    Abstract: A superabsorbent polymer according to the present invention has excellent initial absorption properties, and thus it may be used in sanitary materials such as diapers, etc., thereby exhibiting excellent performances.
    Type: Application
    Filed: January 5, 2017
    Publication date: May 9, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jun Kyu KIM, Hyung Ki YOON, Dae Woo NAM, Bo Hyun SEONG, Yeon Woo HONG, Seong Beom HEO, Seon Jung JUNG, Ji Yoon JEONG, Tae Hwan JANG, Su Jin KIM
  • Publication number: 20190135992
    Abstract: A super absorbent polymer produced by the preparation method of the super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: May 9, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Bo Hyun Seong, Dae Woo Nam, Jun Kyu Kim, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong, Tae Hwan Jang
  • Publication number: 20190100629
    Abstract: A super absorbent polymer according to the present invention has an excellent discoloration resistance characteristic even under high temperature/high humidity conditions, while maintaining excellent absorption performance, and is preferably used for hygienic materials such as diapers, and thus can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 4, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Seon Jung Jung, Tae Hwan Jang, Jun Kyu Kim, Seong Beom Heo, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Ji Yoon Jeong, Hyung Ki Yoon