Patents by Inventor Mun Choi

Mun Choi 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: 20190091656
    Abstract: The present invention relates to superabsorbent polymer having excellent centrifuge retention capacity and permeability. The superabsorbent polymer simultaneously exhibits excellent centrifuge retention capacity and permeability, and thus, can fundamentally solve the problems of the existing superabsorbent polymer and technical requirement of the art, and can provide various hygienic goods exhibiting more excellent properties.
    Type: Application
    Filed: January 5, 2017
    Publication date: March 28, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ju Eun Kim, Gi Cheul Kim, Won Mun Choi, Ki Hyun Kim, Seul Ah Lee, Won Taeck Lim
  • Publication number: 20190085103
    Abstract: The present invention relates to a method for superabsorbent polymer that has a crosslinking density gradient increasing from the inside toward the outside, and thus, exhibits excellent properties with simultaneously improved centrifuge retention capacity and absorbency under load.
    Type: Application
    Filed: December 23, 2016
    Publication date: March 21, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ki Hyun Kim, Gi Cheul Kim, Won Mun Choi, Won Taeck Lim, Seul Ah Lee
  • Publication number: 20190085099
    Abstract: The present invention relates to a modification initiator and a modified conjugated diene-based polymer including the same, and more particularly, the present invention provides a modification initiator including a compound represented by Formula 1, a modified conjugated diene-based polymer including the same, and a method of preparing a modified conjugated diene-based polymer.
    Type: Application
    Filed: September 29, 2017
    Publication date: March 21, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Min Soo Kim, Soo Yong Lee, Won Mun Choi
  • Publication number: 20190071523
    Abstract: The present invention relates to a superabsorbent polymer having excellent short time free absorbency. The superabsorbent polymer may exhibit excellent centrifuge retention capacity and absorbency under load, as well as excellent short time free absorbency. Thus, it can fundamentally solve the problems of the existing superabsorbent polymer and technical requirement of the art, and can provide various hygienic goods exhibiting more excellent properties.
    Type: Application
    Filed: January 5, 2017
    Publication date: March 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Kyu Pal Kim, Gi Cheul Kim, Won Mun Choi, Ki Hyun Kim, Seul Ah Lee, Won Taeck Lim
  • Publication number: 20190071524
    Abstract: The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ji Eun Kim, Won Taeck Lim, Won Mun Choi, Dae June Joe
  • Patent number: 10184012
    Abstract: The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: January 22, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Hyo Jin Bae, Won Hee Kim, Hee Jung Jeon, Seung Ho Choi, Kyoung Hwan Oh, Dong Hui Kim, Hyun Woong Park, Won Mun Choi, Jeong Heon Ahn, Suk Youn Kang
  • Patent number: 10174133
    Abstract: The present invention relates to a modified styrene-butadiene copolymer with a high modification ratio, including a functional group derived from a modifier represented by Formula 1, a preparation method thereof, a rubber composition including the same, and a tire manufactured from the rubber composition.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: January 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Seung Ho Choi, Min Soo Kim, Cheol Jae Kim, Won Mun Choi
  • Publication number: 20180282353
    Abstract: The present invention provides a novel method for preparing an aminosilane-based compound, by which an aminosilane-based compound used for preparing a modified and conjugated diene-based polymer which shows excellent affinity with an inorganic filler in a rubber composition and increases dispersibility, may be prepared in high purity and high yield.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 4, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Won Taeck Lim, Ji Eun Kim, Cheol Jae Kim, Won Mun Choi
  • Publication number: 20180244819
    Abstract: The present invention relates to a substituted styrene-based compound represented by Formula 1 (refer to the specification and the scope of the claims), a method of preparing the styrene-based compound, a modified polymer including a functional group derived from the substituted styrene-based compound, a method of preparing the modified polymer, a rubber composition including the modified polymer, and a molded article manufactured from the rubber composition.
    Type: Application
    Filed: December 1, 2016
    Publication date: August 30, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Min Soo Kim, Won Mun Choi, Dae June Joe
  • Publication number: 20180215949
    Abstract: The present disclosure provides a hard-coating resin composition for a hard-coating having easy processability, flexibility and high surface hardness suitable for a hard-coating agent, in which a siloxane molecule having an inorganic material characteristic is chemically bonded with an epoxy group having an organic material characteristic to form one molecule, and the siloxane molecule is made to contain a various molecular weight distribution for dense crosslinking during polymerization of the epoxy group in order to obtain high surface hardness due to the inorganic material.
    Type: Application
    Filed: March 29, 2018
    Publication date: August 2, 2018
    Inventors: Byeong-Soo BAE, Ji-Hoon KO, Gwang-Mun CHOI
  • Publication number: 20180162959
    Abstract: The present invention provides a compound represented by Formula 1, a modified and conjugated diene-based polymer with a high modification ratio, which includes a functional group derived from the compound, a method for preparing the polymer, a rubber composition including the polymer, and a tire manufactured from the rubber composition.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 14, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Seung Ho Choi, Ji Eun Kim, Won Mun Choi, Cheol Jae Kim
  • Patent number: 9951150
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 24, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Publication number: 20180072851
    Abstract: The present invention relates to a modified polymer having a high modification ratio and an excellent affinity with a filler, a method of preparing the same, a rubber composition including the modified polymer, and a molded article prepared from the rubber composition. The modified polymer according to the present invention may exhibit a high modification ratio by including functional groups in a polymer main chain and on at least one end thereof, and thus, an affinity with a filler, such as silica, may be excellent. Also, the rubber composition according to the present invention may have excellent processability by including the modified polymer having an excellent affinity with the filler, and, as a result, a processed product (e.g., tire) prepared by using the rubber composition may have excellent tensile strength, abrasion resistance, and wet road surface resistance.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 15, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Min Soo Kim, Seung Ho Choi, Dae June Joe, Won Mun Choi
  • Publication number: 20180066077
    Abstract: The present invention relates to a terminal modified and conjugated diene-based polymer rubber composition including a terminal modified and conjugated diene-based polymer which is characterized in that an aminosilane-based terminal modifier represented by Formula 1 or Formula 2 is combined at the terminal of a conjugated diene-based polymer, and a method for preparing the same.
    Type: Application
    Filed: June 17, 2016
    Publication date: March 8, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Zeong-Back Kim, Ji-Eun Kim, Won-Mun Choi, Dae-June Joe
  • Publication number: 20170335180
    Abstract: The present invention relates to a semiconductor nanocrystal-siloxane composite resin composition and a preparation method thereof, and more specifically to a semiconductor nanocrystal-siloxane composite resin composition in which semiconductor nanocrystals are dispersed and bonded to a siloxane composite resin obtained by condensation reaction of a mixture of one or more organoalkoxysilanes or organosilanediol, and a preparation method thereof. The cured product of the semiconductor nanocrystal-siloxane resin composition of the present invention can be prepared as a coating, a film, a flake, etc., and the inherent characteristics of the semiconductor nanocrystal are maintained in a high temperature and high humidity environment and the reliability of the application devices is improved.
    Type: Application
    Filed: May 17, 2017
    Publication date: November 23, 2017
    Inventors: Byeong-Soo BAE, Hwea Yoon KIM, Gwang-Mun CHOI
  • Patent number: 9822192
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: November 21, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Publication number: 20170275390
    Abstract: The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.
    Type: Application
    Filed: November 27, 2015
    Publication date: September 28, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Hyo Jin Bae, Won Hee Kim, Hee Jung Jeon, Seung Ho Choi, Kyoung Hwan Oh, Dong Hui Kim, Hyun Woong Park, Won Mun Choi, Jeong Heon Ahn, Suk Youn Kang
  • Patent number: 9745393
    Abstract: Disclosed are an anionic polymerization initiator, which is a reaction product of an organometallic compound and a compound including an etheric oxygen atom-containing alkyl group represented by specific Chemical Formula, and a method of preparing a conjugated diene-based copolymer using the same.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: August 29, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Dae-June Joe, Min-Soo Kim, Won-Mun Choi
  • Publication number: 20170204205
    Abstract: The present invention relates to a modified styrene-butadiene copolymer with a high modification ratio, including a functional group derived from a modifier represented by Formula 1, a preparation method thereof, a rubber composition including the same, and a tire manufactured from the rubber composition.
    Type: Application
    Filed: November 27, 2015
    Publication date: July 20, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Seung Ho Choi, Min Soo Kim, Cheol Jae Kim, Won Mun Choi
  • Patent number: 9708420
    Abstract: Disclosed are an anionic polymerization initiator, which is a reaction product of an organometallic compound and a compound including an alkyl chain having a tertiary amino functional group, and a method of preparing a conjugated diene-based copolymer using the same.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: July 18, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Dae-June Joe, Min-Soo Kim, Won-Mun Choi