Patents by Inventor Jun-kyu Kim

Jun-kyu 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).

  • Publication number: 20220370990
    Abstract: Provided are a composite structure, in which metal nanoparticle-perovskite oxide is bound to metal oxide supports (i.e., sensing materials), and a preparation method thereof. The composite structure has improved durability, in which metal nanoparticles uniform in size are evenly distributed on the surface of perovskite oxide. Provided is also a high-performance gas sensor having excellent target gas detection performances by including the composite structure.
    Type: Application
    Filed: November 23, 2021
    Publication date: November 24, 2022
    Inventors: WooChul JUNG, IL-Doo KIM, Jun Kyu KIM, Dong-Ha KIM
  • Publication number: 20220346379
    Abstract: Provided are both a superabsorbent polymer capable of continuously and safely exhibiting an improved bacterial growth inhibitory property and a deodorant property without deterioration in the physical properties of the superabsorbent polymer, such as water retention capacity, absorption under pressure, etc., as well as a preparation method for the superabsorbent polymer.
    Type: Application
    Filed: November 13, 2020
    Publication date: November 3, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Haesung Yun, Hyungsam Choi, Dong Hyun Kim, Seonjung Jung, Ji Seok Lee, Jin Woo Lee, Jun Kyu Kim, Byungguk Kim, Sanggon Kim
  • Patent number: 11484863
    Abstract: Disclosed are a superabsorbent polymer having improved anti-caking properties and a method of preparing the same, and the superabsorbent polymer having improved anti-caking properties includes a superabsorbent polymer, microparticles, and water, and to improve anti-caking properties of the superabsorbent polymer, the temperature of the superabsorbent polymer or water upon addition of water or the aging time upon stirring is adjusted, thereby preventing caking of the particles.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: November 1, 2022
    Inventors: Young-In Yang, Young-Sam Kim, Jun-Kyu Kim, Bo-Hee Park, Ung-Gu Kang, Min-Gyu Kim, Su-Jin Kim
  • 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
  • Publication number: 20220234027
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer, and there is provided a preparation method of a super absorbent polymer capable of achieving anti-caking while maintaining excellent absorption-related physical properties of super absorbent polymer particles by performing surface cross-linking at a relatively lower temperature than before using a non-epoxy cross-linking agent without an epoxy-based surface cross-linking agent, which is a controversial source of chemical hazards.
    Type: Application
    Filed: October 7, 2020
    Publication date: July 28, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jin Seok Seo, Jun Kyu Kim, Dong Hyun Kim
  • Publication number: 20220203328
    Abstract: Provided are a superabsorbent polymer capable of exhibiting improved bacterial growth-inhibitory property without deterioration in physical properties of the superabsorbent polymer, such as water retention capacity and absorbency under pressure, or without an increase in the generation of dust, and a preparation method thereof. The superabsorbent polymer may include a base polymer powder including a crosslinked polymer of water-soluble ethylenically unsaturated monomers including acidic groups, of which at least a part is neutralized; and a surface-crosslinked layer which is obtained by additionally crosslinking the crosslinked polymer via a surface crosslinking agent to be formed on the surface of the base polymer powder, wherein the crosslinked polymer of the base polymer powder or the surface-crosslinked layer includes an antimicrobial agent including an organic acid salt having an aromatic ring inside the crosslinked structure thereof.
    Type: Application
    Filed: September 7, 2020
    Publication date: June 30, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jin Woo Lee, Jun Kyu Kim
  • Patent number: 11370856
    Abstract: The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 28, 2022
    Inventors: Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
  • Publication number: 20220170899
    Abstract: Provided is a method of producing a metal nanoparticle-oxide support complex structure, in which metal nanoparticles uniform in size are evenly distributed on the surface of oxide supports. A gas sensor with improved gas sensing ability and durability may be provided by using the same.
    Type: Application
    Filed: August 25, 2021
    Publication date: June 2, 2022
    Inventors: WooChul JUNG, Il-Doo KIM, Jun Kyu Kim, Ji-Soo JANG
  • Publication number: 20220088569
    Abstract: There are provided a superabsorbent polymer composition and a method for preparing the same, more specifically, a superabsorbent polymer composition exhibiting excellent absorption performance and a method for preparing the same.
    Type: Application
    Filed: August 6, 2020
    Publication date: March 24, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Sujin Kim, Jun Kyu Kim
  • 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
  • Publication number: 20210322953
    Abstract: The invention relates to superabsorbent polymer that not only has excellent basic absorption performance, but also exhibits more improved permeability under pressure, and thus, can improve rewet property and leak inhibition property of hygienic products such as a diaper, and the like, and a method for preparing the same. The superabsorbent polymer comprises base resin powder comprising first crosslinked polymer of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized; and a surface crosslink layer on the base resin powder, comprising second crosslinked polymer formed by additional crosslinking of the first crosslinked polymer by a surface crosslinking agent, wherein the surface crosslinking agent comprises a polymer type first surface crosslinking agent having number average molecular weight of 300 or more, and having plural hydroxy groups or epoxy groups.
    Type: Application
    Filed: October 10, 2019
    Publication date: October 21, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Bohee Park, Jun Kyu Kim, Dong Hyun Kim
  • 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: 20210188656
    Abstract: There is provided a method for preparation of oxide support-nanoparticle composites, in which metal nanoparticles decorate with uniform size and distribution on the surface of an oxide support, and thus, high performance oxide support-nanoparticle composites that can be applied in the fields of heterogeneous catalysis can be provided.
    Type: Application
    Filed: November 13, 2020
    Publication date: June 24, 2021
    Inventors: WooChul JUNG, Jun Kyu KIM, Bonjae KOO
  • 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: 10960102
    Abstract: A superabsorbent polymer which has excellent initial absorbency and keeps water from flowing out under pressure even after the passage of a long period of time, in which the superabsorbent polymer keeps water from flowing out under pressure even after the passage of a long period of time to exhibit excellent absorbency, and also has an anti-caking property under conditions of high temperature and high humidity to improve storage stability, is provided. The superabsorbent polymer composition of the present invention may be used to improve physical properties of a variety of diapers, potty training pants, incontinence pads, etc., thereby being applied to production of personal absorbent hygiene products having high absorbency and excellent storage stability under conditions of high temperature and high humidity.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 30, 2021
    Inventors: Wook Hwan Noh, Jun Kyu Kim, Jong Hyuk Kwon, Young Jae Hur, Ki Han Kim