Patents by Inventor Kyung Youl BAEK

Kyung Youl BAEK 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: 11917864
    Abstract: Provided is a display device including a film structure having excellent flexibility and moisture infiltration prevention effects via a structure including a first polymer and a second polymer in which an inorganic compound penetrates into the first polymer. The display device may have excellent durability without causing problems such as peeling off of a sealing layer and moisture infiltration even after the display device is repeatedly stretched.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: February 27, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sangho Cho, Kyung Youl Baek
  • Patent number: 11866597
    Abstract: The present disclosure relates to 2-dimensional MXenes surface-modified with catechol derivatives, a method for preparing the same, MXene organic ink including the same, and use thereof (e.g. flexible electrodes, conducive cohesive/adhesive materials, electromagnetic wave-shielding materials, flexible heaters, sensors, energy storage devices). Particularly, the simple, fast, and scalable surface-functionalization process of MXenes using catechol derivatives (e.g. ADOPA) organic ligands significantly improves the dispersion stability in various organic solvents (including ethanol, isopropyl alcohol, acetone and acetonitrile) and produces highly concentrated organic liquid crystals of various MXenes (including Ti2CTx, Nb2CTx, V2CTx, Mo2CTx, Ti3C2Tx, Ti3CNTx, Mo2TiC2Tx, and Mo2Ti2C3Tx). Such products offer excellent electrical conductivity, improved oxidation stability, excellent coating and adhesion abilities to various hydrophobic substrates, and composite processability with hydrophobic polymers.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 9, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Chong Min Koo, In Sik In, Tae Yun Ko, Daesin Kim, Se Hyun Doo, Seon Joon Kim, Soon Man Hong, Seung Sang Hwang, Kyung Youl Baek, Albert Lee, Sangho Cho
  • Patent number: 11692079
    Abstract: The present invention relates to a 2-dimensional MXene particle surface-modified with a functional group comprising a saturated or unsaturated hydrocarbon, a preparation method thereof, and a use thereof (e.g., a conductive film).
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 4, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sangho Cho, Chong Min Koo, Soon Man Hong, Seung Sang Hwang, Kyung Youl Baek, Daesin Kim, Hye-rim Kim
  • Patent number: 11666896
    Abstract: Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: June 6, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Youl Baek, Soon Man Hong, Seung Sang Hwang, Chong Min Koo, Seon Joon Kim, Albert Lee, Jin Young Seo, Min Hyuk Choi, Yu Ri Lee, Sejin Kim, Do Xuan Huy, Que Thi Nguyen, Sangho Cho
  • Publication number: 20220372231
    Abstract: The present disclosure relates to a UV- and heat-curable ladder-like polysilsesquioxane copolymer and a method for preparing the same. Since a controlled functionality can be provided only on a desired region via a thiol-ene click reaction without an additional additive, an insulating layer having a low dielectric constant and a microcircuit pattern can be formed without an additional etching process.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 24, 2022
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seung Sang HWANG, Soon Man Hong, Kyung Youl Baek, Chong Min Koo, Albert Lee, Seon Joon Kim, You Mee Choi
  • Patent number: 11492363
    Abstract: The present invention relates to a method for preparing size-modulated UiO-66, which is achieved by modulating the concentrations of reactants, and a catalyst with improved activity of hydrolyzing chemical warfare agents prepared by the method.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: November 8, 2022
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Youl Baek, Chong Min Koo, Soon Man Hong, Seung Sang Hwang, Sangho Cho, Jin Young Seo, Do Xuan Huy, Younghan Song, Sejin Kim, Changju Sung, Yeojin Ahn
  • Publication number: 20220302232
    Abstract: Provided is a display device including a film structure having excellent flexibility and moisture infiltration prevention effects via a structure including a first polymer and a second polymer in which an inorganic compound penetrates into the first polymer. The display device may have excellent durability without causing problems such as peeling off of a sealing layer and moisture infiltration even after the display device is repeatedly stretched.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Inventors: Sangho CHO, Kyung Youl BAEK
  • Publication number: 20210362142
    Abstract: Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.
    Type: Application
    Filed: January 29, 2021
    Publication date: November 25, 2021
    Inventors: Kyung Youl BAEK, Soon Man HONG, Seung Sang HWANG, Chong Min KOO, Seon Joon KIM, Albert LEE, Jin Young SEO, Min Hyuk CHOI, Yu Ri LEE, Sejin KIM, DO XUAN HUY, Que Thi Nguyen, Sangho CHO
  • Publication number: 20210269664
    Abstract: The present disclosure relates to 2-dimensional MXenes surface-modified with catechol derivatives, a method for preparing the same, MXene organic ink including the same, and use thereof (e.g. flexible electrodes, conducive cohesive/adhesive materials, electromagnetic wave-shielding materials, flexible heaters, sensors, energy storage devices). Particularly, the simple, fast, and scalable surface-functionalization process of MXenes using catechol derivatives (e.g. ADOPA) organic ligands significantly improves the dispersion stability in various organic solvents (including ethanol, isopropyl alcohol, acetone and acetonitrile) and produces highly concentrated organic liquid crystals of various MXenes (including Ti2CTx, Nb2CTx, V2CTx, Mo2CTx, Ti3C2Tx, Ti3CNTx, Mo2TiC2Tx, and Mo2Ti2C3Tx). Such products offer excellent electrical conductivity, improved oxidation stability, excellent coating and adhesion abilities to various hydrophobic substrates, and composite processability with hydrophobic polymers.
    Type: Application
    Filed: February 11, 2021
    Publication date: September 2, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chong Min KOO, In Sik IN, Tae Yun KO, Daesin KIM, Se Hyun DOO, Seon Joon KIM, Soon Man HONG, Seung Sang HWANG, Kyung Youl BAEK, Albert LEE, Sangho CHO
  • Publication number: 20210261415
    Abstract: In an aspect, the present disclosure provides a heat-treated transition metal carbonitride MXene film annealed at high temperatures and a polymer composite comprising the same. In another aspect, the present disclosure provides a method for producing a heat-treated transition metal carbonitride MXene film comprising: obtaining a MXene aqueous solution containing dispersed 2-dimensional (2D) MXenes through an acid etching process; filtering the obtained MXene aqueous solution through a vacuum filtration process to produce a free-standing film; and annealing the produced free-standing film at high temperatures to obtain a heat-treated transition metal carbonitride MXene film. In still another aspect, the present disclosure provides an electromagnetic interference (EMI) shielding method comprising: superposing a coating comprising a heat-treated transition metal carbonitride MXene film on at least one surface of an object in a contact or non-contact manner.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, DREXEL UNIVERSITY
    Inventors: Yury GOGOTSI, Kanit HANTANASIRISAKUL, Chong Min KOO, Aamir IQBAL, Soon Man HONG, Seon Joon KIM, Seung Sang HWANG, Kyung Youl BAEK, Albert LEE, Sangho CHO
  • Publication number: 20210262121
    Abstract: Provided are a method of manufacturing MXene fibers and MXene fibers manufactured therefrom, wherein the method includes a) preparing a dispersion including MXenes; and b) spinning the dispersion in a coagulation solution to obtain MXene fibers.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 26, 2021
    Inventors: SangOuk KIM, Taeyeong YUN, Jin Gu KIM, Gang San LEE, Chong Min KOO, Hye Rim KIM, Seon Joon KIM, Soon Man HONG, Seung Sang HWANG, Kyung Youl BAEK, Sangho CHO
  • Patent number: 10907023
    Abstract: A method of preparing a polymer hollow particle, a low-specific gravity and monodispersed polymer hollow particle of various shapes prepared using the method, and a composite including the polymer hollow particle are provided. The method includes: a first step of providing, onto a substrate including a engraved pattern, at least one expandable particle comprising a foaming agent-containing expandable core and a thermoplastic polymer shell; a second step of removing an excess of the at least one expandable particle from a resulting product of the first step; a third step of expanding the at least one expandable particle in the engraved pattern of the substrate by thermally treating a resulting product of the second step; and a fourth step of separating, from the substrate, expanded hollow polymer particles which are a resulting product of the third step.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: February 2, 2021
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chong Min Koo, Soon Man Hong, Seung Sang Hwang, Kyung Youl Baek, Hyunchul Park, Seunggun Yu, Hyesung Cho
  • Patent number: 10886450
    Abstract: Disclosed is a thermoelectric composite material includes a thermoelectric material including crystal grains; and a MXene inserted at boundaries of the crystal grains consisting of the thermoelectric material. Accordingly, the thermoelectric composite material may have a reduced thermal conductivity and an increased electrical conductivity. Furthermore, mechanical properties of the thermoelectric composite material may be improved. Thus, the thermoelectric composite material may improve the thermoelectric ability of a thermoelectric module including the same. A method of manufacturing the thermoelectric composite material includes coating MXene on a surface of a thermoelectric material powder including crystal grains; and sintering the thermoelectric material powder coated with the MXene to form a sintered body including the MXene inserted at boundaries of the crystal grains consisting of the thermoelectric material.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 5, 2021
    Assignee: Korea Institute of Science and Technology
    Inventors: Jin-Sang Kim, Chong-Min Koo, Seung-Hyub Baek, Seong-Keun Kim, Chong-Yun Kang, Soon-Man Hong, Seung-Sang Hwang, Ji-Won Choi, Seok-Jin Yoon, Kwang-Chon Kim, Kyung-Youl Baek, Sang-Ho Cho
  • Publication number: 20200115395
    Abstract: The present invention relates to a method for preparing size-modulated UiO-66, which is achieved by modulating the concentrations of reactants, and a catalyst with improved activity of hydrolyzing chemical warfare agents prepared by the method.
    Type: Application
    Filed: April 26, 2019
    Publication date: April 16, 2020
    Inventors: Kyung Youl BAEK, Chong Min KOO, Soon Man HONG, Seung Sang HWANG, Sangho CHO, Jin Young SEO, Do Xuan HUY, Younghan SONG, Sejin KIM, Changju SUNG, Yeojin AHN
  • Publication number: 20200102444
    Abstract: The present invention relates to a 2-dimensional MXene particle surface-modified with a functional group comprising a saturated or unsaturated hydrocarbon, a preparation method thereof, and a use thereof (e.g., a conductive film).
    Type: Application
    Filed: October 1, 2019
    Publication date: April 2, 2020
    Inventors: Sangho CHO, Chong Min KOO, Soon Man HONG, Seung Sang HWANG, Kyung Youl BAEK, Daesin KIM, Hye-rim KIM
  • Patent number: 10400070
    Abstract: Disclosed is a self-healing polysilsesquioxane and a hybrid film using the same. Once crosslinked, the polysilsesquioxane copolymer can self-heal within several minutes at 100-120° C. The self-healing polysilsesquioxane copolymer can be prepared into a hybrid material in the form of a film. Because the hybrid film has an excellent ability of self-healing the damage caused by external impact, it is applicable to wide applications such as gas separation membranes, etc., without limitation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 3, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Seung Sang Hwang, Soon Man Hong, Chong Min Koo, Kyung Youl Baek, Albert Sung Soo Lee, Young Yeol Jo
  • Publication number: 20190189884
    Abstract: A thermoelectric composite material includes MXene inserted at a boundary of a crystal grain consisting of a thermoelectric material. Accordingly, the thermoelectric composite material may have a reduced thermal conductivity and an increased electrical conductivity. Furthermore, a mechanical property of the thermoelectric composite material may be improved. Thus, the thermoelectric composite material may improve a thermoelectric ability of a thermoelectric module.
    Type: Application
    Filed: June 4, 2018
    Publication date: June 20, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin-Sang KIM, Chong-Min KOO, Seung-Hyub BAEK, Seong-Keun KIM, Chong-Yun KANG, Soon-Man HONG, Seung-Sang HWANG, Ji-Won CHOI, Seok-Jin YOON, Kwang-Chon KIM, Kyung-Youl BAEK, Sang-Ho CHO
  • Publication number: 20190016868
    Abstract: A method of preparing a polymer hollow particle, a low-specific gravity and monodispersed polymer hollow particle of various shapes prepared using the method, and a composite including the polymer hollow particle are provided. The method includes: a first step of providing, onto a substrate including a engraved pattern, at least one expandable particle comprising a foaming agent-containing expandable core and a thermoplastic polymer shell; a second step of removing an excess of the at least one expandable particle from a resulting product of the first step; a third step of expanding the at least one expandable particle in the engraved pattern of the substrate by thermally treating a resulting product of the second step; and a fourth step of separating, from the substrate, expanded hollow polymer particles which are a resulting product of the third step.
    Type: Application
    Filed: May 28, 2018
    Publication date: January 17, 2019
    Inventors: Chong Min KOO, Soon Man HONG, Seung Sang HWANG, Kyung Youl BAEK, Hyunchul PARK, Seunggun YU, Hyesung CHO
  • Publication number: 20180155501
    Abstract: Disclosed is a self-healing polysilsesquioxane and a hybrid film using the same. Once crosslinked, the polysilsesquioxane copolymer can self-heal within several minutes at 100-120° C. The self-healing polysilsesquioxane copolymer can be prepared into a hybrid material in the form of a film. Because the hybrid film has an excellent ability of self-healing the damage caused by external impact, it is applicable to wide applications such as gas separation membranes, etc., without limitation.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 7, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seung Sang HWANG, Soon Man Hong, Chong Min Koo, Kyung Youl Baek, Albert Sung Soo Lee, Young Yeol Jo
  • Patent number: 9908979
    Abstract: The present invention provides a method for producing polythiophene star copolymer capable of being self-doped by an external stimulus, which includes the steps of: forming a polythiophene macroinitiator made by introducing a living radical polymerizable functional group into an end of polythiophene or a derivative thereof; forming through living radical polymerization a polymer macroinitiator for providing by an external stimulus at least a dopant selected from the group consisting of sulfonic acid radical, carboxylic acid radical and phosphoric acid radical; and polymerizing the polythiophene macroinitiator added with the polymer macroinitiator and at least one kind of divinyl monomer to produce the polythiophene star copolymer. The polythiophene star copolymer capable of being self-doped by an external stimulus according to the present invention is a self-doped material to stably increase conductivity, and can be used as a material for a conductive film.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 6, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Youl Baek, Seung Sang Hwang, Soon Man Hong, Min Jae Ko, Yun Jae Lee, Hyun Ji Kim, Hyeon Yeol Jeon, Chong Min Koo