Patents by Inventor Jae Hoon Choe

Jae Hoon Choe 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: 20240141394
    Abstract: The present invention relates to a process of recovering 3-hydroxypropionic acid, comprising: forming a 3-hydroxypropionate crystal in a concentrate containing 3-hydroxypropionic acid in the presence of an alkali metal salt, preparing a solution containing 3-hydroxypropionate crystal separated from the concentrate, stirring an acid and the solution containing 3-hydroxypropionate crystal to form a precipitate, and subjecting the precipitate to a first washing, and a slurry composition comprising a precipitate prepared in the process of recovering 3-hydroxypropionic acid and 3-hydroxypropionic acid.
    Type: Application
    Filed: November 28, 2022
    Publication date: May 2, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Jeong Eun KIM, Yongju BANG, Jae Hoon CHOE, Donggyun KANG, Ara CHO, Woochul JUNG, Sang Won HAN, Taeho KIM
  • Patent number: 11949153
    Abstract: An electronic device is provided. The electronic device includes an outer housing that comprises a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a side surface surrounding a space between the first surface and the second surface, a display adapted to expose at least a portion of the display through the first surface of the outer housing, a PCB arranged between the second surface and the display in an interior of the outer housing, a communication circuit arranged on or over the PCB, a first conductive structure formed of at least one of the first surface or at least a portion of the side surface is electrically connected to the communication circuit, and a second conductive structure formed of the portion of the display electrically connected to the first conductive structure.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: April 2, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Young Kim, In Young Lee, Sang Hoon Choi, Woo Suk Kang, Jae Won Choe, Jae Bong Chun
  • Patent number: 11926939
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer non-woven fabric and super absorbent polymer fibers prepared therefrom. According to the preparation method of the present disclosure, it is possible to provide super absorbent polymer fibers exhibiting high flexibility and fast absorption rate in the form of long fibers.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 12, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Chanjoong Kim, Woongchan Jeong, Chang Sun Han, Jae Hoon Choe, Taebin Ahn, Chang Hun Lee
  • Publication number: 20230374248
    Abstract: A waste plastic recycling process includes preparing a first solution by dissolving waste plastics in an organic solvent; adding an adsorbent to the first solution; recrystallizing plastics by adding 60 parts by weight or more of a compound having a Hansen solubility parameter (HSP) of 5 to 14 with respect to polycarbonate based on 100 parts by weight of the total weight of the first solution; and collecting the recrystallized plastics. A method for preparing recyclable plastics thereof is also provided.
    Type: Application
    Filed: June 21, 2022
    Publication date: November 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Gyoungsik Kim, Seog Jae Seo, Gyeongho Seon, Chang Hwan Ju, Danbi Han, Jae Hoon Choe
  • Publication number: 20230279176
    Abstract: A method for manufacturing a zero-valent nickel compound, the method comprising supplying a nickel(II) source to a first continuous reactor; supplying a diene-based compound to the first continuous reactor; supplying a reducing agent to the first continuous reactor; and conducting a reaction of the nickel(II) source, the diene-based compound and the reducing agent in the first continuous reactor, and a method for manufacturing a polymer using a nickel complex obtained by reacting the zero-valent nickel compound and a ligand are provided.
    Type: Application
    Filed: August 12, 2021
    Publication date: September 7, 2023
    Inventors: Jungyong LEE, Hyeon Hui KIM, Jong Young CHOI, Dongcheol CHOE, Hyunju KIM, Soyeon JEE, Jae Hoon CHOE
  • Patent number: 11732062
    Abstract: The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time. In addition, the preparation method according to the present invention may prepare the modification polymerization initiator with high purity in high yield.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: August 22, 2023
    Inventors: Dong Cheol Choe, Jae Hoon Choe, Hyeon Hui Kim, Jong Young Choi, Jung Yong Lee, Won Jae Lee
  • Patent number: 11472818
    Abstract: The present invention relates to a method for preparing a modification polymerization initiator with a high conversion ratio by minimizing side reactions. According to the method for preparing a modification polymerization initiator, a modification polymerization initiator which may easily initiate polymerization and provide a polymer with a functional group having affinity with a filler, may be prepared. Particularly, by performing the method using a continuous reactor, the production of by-products may be decreased, and as a result, the conversion ratio may be increased and a modification polymerization initiator with high purity may be prepared in a high yield.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: October 18, 2022
    Inventors: Jung Yong Lee, Dong Cheol Choe, Won Jae Lee, Jae Hoon Choe, Hyeon Hui Kim, Jong Young Choi
  • Patent number: 11427514
    Abstract: The present invention relates to a controlled-release fertilizer, including: a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer, and a photocatalytic composite in which a (co)polymer including at least one repeating unit selected from the group consisting of an ethylene repeating unit and a vinyl acetate repeating unit is bonded to the surface or inside of agglomerates of inorganic fine particles; and a fertilizer contained in a space surrounded by the photodegradable capsule.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 30, 2022
    Assignees: LG CHEM, LTD., FARMHANNONG CO., LTD.
    Inventors: Chanjoong Kim, Joon Seok Lee, Yil Jang, Sangryeo Lee, Ji Yeon Kim, Jae Hoon Choe
  • Patent number: 11414510
    Abstract: The present invention relates to a modified conjugated diene-based polymer, and more particularly, to a modified conjugated diene-based polymer prepared by continuous polymerization and having a specific polymer structure and molecular weight distribution degree and shape, and thus, having remarkable processability and narrow molecular weight distribution, and thus, having excellent physical properties, and a rubber composition including the same.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 16, 2022
    Inventors: Jung Hwan Oh, You Seok Seo, Jae Hoon Choe, Min Soo Kim, No Ma Kim
  • Patent number: 11332413
    Abstract: The present disclosure relates to a controlled-release fertilizer and, more particularly, to a controlled-release fertilizer including: a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer; and a photocatalytic composite in which a (meth)acrylate compound containing an alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of aggregates of inorganic fine particles, and a fertilizer contained in a space surrounded by the photodegradable capsule.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 17, 2022
    Assignees: LG Chem, Ltd., Farmhannong Co., Ltd.
    Inventors: Chanjoong Kim, Sangryeo Lee, Joon Seok Lee, Yil Jang, Ji Yeon Kim, Jae Hoon Choe
  • Patent number: 11299559
    Abstract: A modified conjugated diene-based polymer and a rubber composition including a modified conjugated diene-based polymer are disclosed herein. In some embodiments, a modified conjugated diene-based polymer includes a functional group derived from a modification initiator at one terminal and a functional group derived from a modifier represented by the Formula 2 or Formula 3 at the other terminal, wherein the modified conjugated diene-based polymer having a unimodal molecular weight distribution, and a polydispersity index of 1.0 to less than 1.7. The modified conjugated diene-based polymer prepared by continuous polymerization and having remarkable processability, narrow molecular weight distribution and excellent physical properties.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 12, 2022
    Inventors: Ho Young Lee, Jae Hoon Choe, Kyung Chang Seo, No Ma Kim
  • Patent number: 11286213
    Abstract: The present disclosure relates to a controlled-release fertilizer and, more particularly, to a controlled-release fertilizer comprising a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer; and a photocatalytic composite in which a surfactant having an HLB value of 1 to 6 is bonded to the surface or inside of aggregates of inorganic fine particles, and a fertilizer contained in a space surrounded by the photodegradable capsule.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: March 29, 2022
    Assignees: LG Chem, Ltd., FarmHannong Co., Ltd.
    Inventors: Chanjoong Kim, Sangryeo Lee, Joon Seok Lee, Yil Jang, Ji Yeon Kim, Jae Hoon Choe
  • Patent number: 11254801
    Abstract: The present invention relates to a modified polymerization initiator for a conjugated diene-based polymer, and a modified conjugated diene-based polymer including a functional group derived from the modified polymerization initiator.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 22, 2022
    Inventors: Jung Yong Lee, Jae Hoon Choe, Dong Cheol Choe, Jong Young Choi, Won Jae Lee, Hyeon Hui Kim
  • Publication number: 20220025113
    Abstract: A method for preparing granular polycarbonate particles is disclosed herein. In some embodiments, a method for preparing granulated polycarbonate particles includes mixing a polymerization reaction solution comprising polycarbonate and an organic solvent, and an anti-solvent solution comprising water and an anti-solvent to prepare a mixed solution, heating the mixed solution to remove the organic solvent, and drying or filtering the mixed solution to obtain granular polycarbonate particles. The granular polycarbonate particles having excellent physical properties without using a stabilizer or a surfactant can be obtain.
    Type: Application
    Filed: January 16, 2020
    Publication date: January 27, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hyunju Kim, Hyeon Hui Kim, Jae Hoon Choe, Mooho Hong, Ki Jae Lee, Soyeon Jee
  • Patent number: 11214643
    Abstract: The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 4, 2022
    Inventors: Dong Cheol Choe, Jae Hoon Choe, Jung Yong Lee, Hyeon Hui Kim, Jong Young Choi, Won Jae Lee
  • Patent number: 11214665
    Abstract: A polymerization initiator composition includes isomers of the polymerization initiator, thereby preventing instability and inertness of the polymerization initiator and physical property degradation of the SSBR, minimizing by-products and unreacted materials, and remarkably improving a conversion ratio. In addition, when the polymerization initiator composition according to the present invention is used, there is no need to add a polar additive separately upon polymer polymerization, since the polar additive is already added at the time of preparing the polymerization initiator. Further, the polymer initiator composition has high polarity so that the hydrophobic SSBR and the hydrophilic silica can be effectively dispersed.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 4, 2022
    Inventors: Jae Hoon Choe, Jong Young Choi, Dong Cheol Choe, Hyun Ju Kim, Hyeon Hui Kim, Jung Yong Lee, Chan Joong Kim, Myung Han Lee, Hye Jin Han
  • Patent number: 11028189
    Abstract: An method for preparing an anion polymerization initiator, a device for preparing the same and an anion polymerization initiator prepared therefrom are provided. And the method for preparing an anion polymerization initiator according to present invention is characterized in that an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 8, 2021
    Inventors: Jae Hoon Choe, Jong Young Choi, Jung Yong Lee, Dong Cheol Choe, Hyun Ju Kim, Hyeon Hui Kim, Jong Min Shin, Woong Chan Jeong, Kwang Ho Song
  • Publication number: 20210147599
    Abstract: The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time.
    Type: Application
    Filed: June 19, 2019
    Publication date: May 20, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Dong Cheol Choe, Jae Hoon Choe, Jung Yong Lee, Hyeon Hui Kim, Jong Young Choi, Won Jae Lee
  • Publication number: 20210079571
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer non-woven fabric and super absorbent polymer fibers prepared therefrom. According to the preparation method of the present disclosure, it is possible to provide super absorbent polymer fibers exhibiting high flexibility and fast absorption rate in the form of long fibers.
    Type: Application
    Filed: October 26, 2018
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Chanjoong Kim, Woongchan Jeong, Chang Sun Han, Jae Hoon Choe, Taebin Ahn, Chang Hun Lee
  • Publication number: 20210046444
    Abstract: There is provided a method for preparing surface modified microcapsules that increase fiber adhesion of fragrance capsules, have excellent fragrance durability even after use, and are environmentally friendly due to biodegradation of ester groups, by preparing a pickering emulsion using inorganic nanoparticles and acrylic monomers comprising biodegradable ester groups, and then, preparing capsules through the polymerization thereof, and modifying the surface of the capsules with amine-based monomers.
    Type: Application
    Filed: July 2, 2019
    Publication date: February 18, 2021
    Applicants: LG Household & Health Care Ltd., LG Chem, Ltd.
    Inventors: Jung Whan Oh, Kyungon Cha, Hyunju Kim, Chanjoong Kim, Jae Hoon Choe