Patents by Inventor Ki-Soo Lee

Ki-Soo Lee 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: 10774160
    Abstract: The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: September 15, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ye Jin Lee, Yi Young Choi, Ki Soo Lee, Se Young Kim, Sung Min Lee, Chang Woan Han, Soon Ho Sun
  • Patent number: 10774163
    Abstract: The ethylene/1-hexene copolymer according to the present invention has excellent processability and mechanical properties, and thus can be applied to various fields such as food containers.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: September 15, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sung Min Lee, Yi Young Choi, Bog Ki Hong, Soon Ho Sun, Sun Mi Kim, Jin Young Park, Ki Soo Lee
  • Publication number: 20200282609
    Abstract: The present application relates to a method for selecting an injection-molded article and a method for manufacturing an injection-molded article.
    Type: Application
    Filed: September 29, 2017
    Publication date: September 10, 2020
    Inventors: Hyun Sup LEE, Soon Ho SUN, Yi Young CHOI, Ki Soo LEE, Bog Ki HONG, Sung Hyun PARK, Myung Han LEE, Chang Kwon CHUNG
  • Patent number: 10766985
    Abstract: The present invention relates to an olefin polymer and a preparation method thereof. The olefin polymer exhibits excellent mechanical strength and high processability, and thus is expected to be utilized as a material for various products. Particularly, the olefin polymer can be stably produced into films by a melt-blowing process and thus is expected to be usefully used as a material for products prepared by a melt-blowing process.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sol Cho, Sung Hyun Park, Oh Joo Kwon, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Myung Han Lee, Hyun Jee Kwon
  • Patent number: 10766988
    Abstract: The present disclosure relates to an ethylene/alpha-olefin copolymer having excellent processibility. The ethylene/alpha-olefin copolymer according to the present disclosure is excellent in both mechanical properties and processibility.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Soon Ho Sun, Yi Young Choi, Ki Soo Lee, Bog Ki Hong, Sung Hyun Park, Myung Han Lee, Sung Min Lee, Sun Mi Kim, Jin Young Park
  • Patent number: 10745426
    Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: August 18, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seul Ki Im, Yong Ho Lee, Ki Soo Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Yoon Ki Hong
  • Patent number: 10717793
    Abstract: The present invention provides an olefin polymer in which LCB (long chain branch) is introduced into mLLDPE (metallocene linear low-density polyethylene) to control the storage modulus, whereby the olefin polymer has excellent bubble stability and processing load characteristics and exhibits excellent processability during preparation of a film, and further has excellent mechanical properties and transparency.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: July 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sol Cho, Ki Soo Lee, Heon Yong Kwon, Sung Hyun Park, Myung Han Lee, Oh Joo Kwon, Seung Mi Lee, Eun Ji Shin, Hyun Jee Kwon, Sung Ho Park, Seul Ki Im, Jin Young Lee
  • Patent number: 10688473
    Abstract: The present invention relates to a ligand compound, a catalyst system for oligomerization of olefins including the ligand compound and the organic chromium compound, and a method for oligomerizing olefins using the same. The catalyst system for olefin oligomerization according to the present invention invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thereby enabling more efficient production of alpha-olefins.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Ki Soo Lee
  • Patent number: 10688482
    Abstract: A method for olefin oligomerization comprising i) injecting an olefin monomer and a solvent into a continuous stirred tank reactor; ii) injecting an oligomerization catalyst system comprising a ligand compound, a transition metal compound, and a co-catalyst into the continuous stirred tank reactor; and iii) performing a multimerization reaction of the olefin monomer, wherein a ratio of the flowing rates of the olefin monomer and the solvent is from 1:1 to 2:1.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Ki Hong, Yong Ho Lee, Eun Ji Shin, Ki Soo Lee, Jin Young Park, Seok Pil Sa, Seul Ki Im
  • Publication number: 20200132661
    Abstract: The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Yoon Ki Hong, Hyuck Ju Kwon, Eun Kyoung Song, Dae Sik Hong, Ye Jin Lee, Joong Soo Kim, Eun Young Shin, Young Suk You, Ki Soo Lee
  • Patent number: 10634605
    Abstract: The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting long-term stability of polymers using a molecular weight distribution curve.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ki Hong, Hyuck Ju Kwon, Eun Kyoung Song, Dae Sik Hong, Ye Jin Lee, Joong Soo Kim, Eun Young Shin, Young Suk You, Ki Soo Lee
  • Patent number: 10633467
    Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method. In the preparation method, there can be provided an olefin polymer having excellent isotacticity in a high yield can be obtained by using a supported catalyst in which a transition metal compound having a specific structure is supported on a carrier together with two kinds of cocatalysts. In particular, the supported catalyst can exhibit high activity, excellent process stability and high hydrogen reactivity, thereby providing an olefin polymer having a high flow rate with a regular and excellent morphology. Such olefin polymer exhibits high processability while having excellent mechanical properties such as a tensile strength and a flexural strength, and thus are very useful as long fiber reinforced resins.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Ji Ho Choi, Jae Youp Cheong, Hee Kwang Park, Sang Hoon Lee
  • Publication number: 20200123290
    Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.
    Type: Application
    Filed: August 18, 2017
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Jin Young Lee, Ki Soo Lee, Dae Sik Hong, Sol Cho, Oh Joo Kwon
  • Publication number: 20200115475
    Abstract: An olefin polymer capable of simultaneously satisfying excellent drop impact strength and transparency, a preparation method of the same, and a film using the same, can be provided. In an embodiment, an olefin polymer comprises a plurality of polymer chains, and satisfies the following conditions: i) each polymer chain of the plurality having an average number of short chain branches (SCBs) per 1000 carbon atoms of 20/1000C or more, wherein an SCB has C2 to C7 carbon atoms, ii) a molded film of the olefin polymer having a drop impact strength of 1500 g to 2400 g as measured in accordance with ASTM D1709A, wherein the molded film having a thickness of 100 ?m, and iii) a molded film of the olefin polymer having a haze is 10% to 30% as measured in accordance with ASTM D1003, wherein the molded film having a thickness of 0.05 mm.
    Type: Application
    Filed: November 29, 2018
    Publication date: April 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Seul Ki Im, Seungmi Lee, Ohjoo Kwon, Eunji Shin, Ki Soo Lee, Daesik Hong, Sung Ho Park, Youngsuk You, Jinyoung Lee
  • Patent number: 10604596
    Abstract: The present disclosure relates to a novel metallocene supported catalyst, and a method for preparing a polyolefin using the same. The metallocene supported catalyst according to the present disclosure exhibits a high polymerization activity even when the metallocene compound is supported on a support, thereby showing an excellent activity and preparing a polyolefin having a high molecular weight.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 31, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Jin Cho, Ki Soo Lee, Sung Min Lee, Bog Ki Hong, Min Seok Cho, Se Young Kim, Chang Woan Han
  • Publication number: 20200086883
    Abstract: A vehicle may have an emergency simulation mode, for pre-experiencing operating logic provided in the case of emergency to be caused while driving in a vehicle which is actually driven, and a driving method thereof. The vehicle having an emergency simulation mode may include an input unit for allowing a driver to input a command for selecting a simulation mode for emergency, a controller connected to the input unit and configured for storing a database for a plurality of emergencies to be caused in the vehicle, establishing operating logic of a simulation mode and a real mode for each emergency, and selecting operating logic for each emergency depending on the command received from input unit or a sensing value sensed by the vehicle, and an operation unit which is operated according to the operating logic selected by the controller.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 19, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Taeg Jo Kim, Ki Soo Lee, Jeong Hwan Park
  • Patent number: 10570221
    Abstract: The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Young Suk You, Sung Ho Park, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Eun Young Shin, Hyun Jee Kwon, Jin Young Lee
  • Patent number: 10562994
    Abstract: The present invention relates to polyolefin powder for preparing fiber, and fiber comprising the same. According to the present invention, provided is polyolefin, which exhibits a high molecular weight range and narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of fiber is reduced. Therefore, by using the polyolefin, the present invention exhibits molecular weight, density and narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but the number of gels having a large particle diameter is remarkably reduced, and therefore, the present invention can provide fiber having excellent tenacity and tensile strength half-life.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: February 18, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Young Suk You, Se Young Kim, Soon Ho Sun, Eun Kyoung Song, Seung Mi Lee, Yi Young Choi, Ki Soo Lee, Sun Mi Kim
  • Patent number: 10550207
    Abstract: The present disclosure provides a method for preparing a supported hybrid metallocene catalyst which can be used to prepare a polyolefin, a supported hybrid metallocene catalyst prepared by using the method, and a method for preparing a polyolefin using the supported hybrid metallocene catalyst.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: February 4, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Heon Yong Kwon, Eun Young Shin, Hyun Jee Kwon, Ki Soo Lee, Dae Sik Hong, Se Young Kim, Sung Min Lee
  • Patent number: 10544247
    Abstract: The present disclosure relates to a supported hybrid metallocene catalyst and a method for preparing a polyolefin using the same. When the supported hybrid metallocene catalyst according to the present disclosure is used, a polyolefin with a multimodal molecular weight distribution and excellent environmental stress crack resistance can be prepared.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sun Mi Kim, Yi Young Choi, Ki Soo Lee, Bog Ki Hong, Sung Min Lee, Soon Ho Sun, Jin Young Park