Patents by Inventor Yong-Ho Lee

Yong-Ho 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).

  • Catalyst system for olefin oligomerization, and method for olefin oligomerization using the same
    Patent number: 9498773
    Abstract: The present invention relates to a compound represented by Chemical Formula 1, a catalyst system for olefin oligomerization comprising the same, and a method of olefin oligomerization using the same.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: November 22, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Seok Pil Sa, Yong Ho Lee, Ki Soo Lee, Eun Ji Shin
  • LIGAND COMPOUND, METALLOCENE COMPOUND, AND METHOD FOR PREPARATION OF OLEFIN-BASED POLYMER USING THE SAME
    Publication number: 20160319050
    Abstract: The present invention relates to a novel ligand compound, a metallocene compound, and a method for preparing an olefin-based polymer using the same. The metallocene compound according to the present invention and a catalyst composition comprising the same have excellent polymerization activity, and yet, have excellent comonomer insertion capability, and thus, can be used to prepare olefin-based polymer having wide molecular weight distribution and the resulting excellent processability.
    Type: Application
    Filed: August 21, 2015
    Publication date: November 3, 2016
    Inventors: Bog Ki HONG, Yong Ho LEE, Chang Woan HAN, Yi Young CHOI, Ki Soo LEE
  • LIGAND COMPOUND, CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION, AND METHOD FOR OLEFIN OLIGOMERIZATION USING THE SAME
    Publication number: 20160303552
    Abstract: This disclosure relates to a novel ligand compound that can oligomerize ethylene with high catalyst activity and selectivity, a catalyst system for olefin oligomerization including the same, and a method for olefin oligomerization using the same.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Eun Ji SHIN, Yong Ho LEE, Ki Soo LEE, Seok Pil SA
  • LIGAND COMPOUND, CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION, AND METHOD FOR OLEFIN OLIGOMERIZATION USING THE SAME (As Amended)
    Publication number: 20160304543
    Abstract: This disclosure relates to a ligand compound, a catalyst system for olefin oligomerization, and a method for olefin oligomerization using the same. The catalyst system for olefin oligomerization according to the present invention has excellent catalytic activity, and yet, exhibits high selectivity to 1-hexene and 1-octene, thus enabling efficient preparation of alpha-olefin.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 20, 2016
    Inventors: Yong Ho LEE, Eun Ji SHIN, Seok Pil SA, Ki Soo LEE
  • METALLOCENE COMPOUNDS, CATALYST COMPOSITIONS COMPRISING THE SAME, AND METHOD FOR PREPARING OLEFIN POLYMERS USING THE SAME (AS AMENDED)
    Publication number: 20160297843
    Abstract: The present invention relates to a transition metal compound that may exhibit high activity in olefin polymerization, and easily control the properties of synthesized olefin polymer such as a chemical structure, molecular weight distribution, a mechanical property, and the like, a catalyst composition comprising the same, and a method for olefin polymerization using the catalyst composition.
    Type: Application
    Filed: August 12, 2015
    Publication date: October 13, 2016
    Inventors: Sung Min LEE, Ki Soo LEE, Heon Yong KWON, Dae Sik HONG, Se Young KIM, Yong Ho LEE, Eun Young SHIN, Sung Ho PARK, Min Seok CHO, Kyung Jin CHO, Jin Young PARK
  • OLEFIN BLOCK COPOLYMER
    Publication number: 20160289365
    Abstract: The present description relates to an olefin block copolymer with excellences in elasticity, heat resistance, and processability. The olefin block copolymer comprises a plurality of blocks or segments, each comprising an ethylene or propylene repeating unit and an ?-olefin repeating unit at different mole fractions. The olefin block copolymer comprises polymer chains containing 20 to 100 short-chain branches (SCBs) per 1,000 carbon atoms. A point where a first derivative of the number Y of the SCBs per 1,000 carbon atoms of each polymer chain with respect to the molecular weight X of the polymer chain is 0 exists between the minimum and maximum values of the molecular weight X.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Inventors: Man-Seong JEON, Ki-Soo LEE, Yong-Ho LEE, Heon-Yong KWON, Min-Seok CHO, Seon-Kyoung KIM, Kyoung-Chan LIM, Dae-Sik HONG
  • SUPPORTED HYBRID CATALYST AND METHOD FOR PREPARING OLEFIN-BASED POLYMER USING THE SAME
    Publication number: 20160280813
    Abstract: The present invention relates to a supported hybrid catalyst and a method for preparing an olefin based polymer using the same. The supported hybrid catalyst according to the present invention can be used in the preparation of an olefin-based polymer, and the olefin-based polymer prepared using the supported hybrid catalyst has excellent processability and mechanical properties and thus can be effectively used for the application of films or the like.
    Type: Application
    Filed: September 7, 2015
    Publication date: September 29, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Heon Yong KWON, Eun Young SHIN, Ki Soo LEE, Dae Sik HONG, Se Young KIM, Sung Min LEE, Hyun Jee KWON, Yong Ho LEE, Yu Taek SUNG, Dong Hoon JEONG
  • SILICA SUPPORT, PREPARATION METHOD THEREOF AND METALLOCENE CATALYST USING THE SAME
    Publication number: 20160272739
    Abstract: This disclosure relates to a silica support for a metallocene catalyst used for olefin polymerization, a preparation method thereof, a metallocene catalyst using the same, and olefin polymer. Specifically, according to the present invention, a silica support used for preparing a metallocene supported catalyst is treated with a specific halogenized metal compound, thereby diversifying reaction sites to a cocatalyst when preparing a metallocene catalyst, and thus, the molecular weight distribution of produced olefin polymer may be much broadened and polymer having high molecular weight may be obtained compared to the existing support, even if the same metallocene catalyst is supported.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Dae Sik HONG, Ki Soo LEE, Heon Yong KWON, Hyeon-Gook KIM, Eun Kyoung SONG, Yong Ho LEE
  • LIGAND COMPOUND, CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION, AND OLEFIN OLIGOMERIZATION METHOD USING THE SAME
    Publication number: 20160271600
    Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization, and a method for olefin oligomerization using the same. The present ligand compound is a compound having a certain new structure and enables provision of a catalyst system for olefin oligomerization that can oligomerize ethylene with higher catalytic activity.
    Type: Application
    Filed: November 17, 2014
    Publication date: September 22, 2016
    Inventors: Seok Pil SA, Yong Ho LEE, Ki Soo LEE, Eun Ji SHIN
  • Preparation method of catalyst for polyolefin polymerization and preparation method of polyolefin
    Patent number: 9447211
    Abstract: A preparation method of a catalyst for polyolefin polymerization capable of polymerizing low-density polyethylene in a single reactor without separately injecting a comonomer to thereby prepare a final product with a low cost through a more simplified process, a catalyst obtained by the preparation method, and a preparation method of a polyolefin using the catalyst are provided.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Ki Soo Lee, Eun Kyoung Song, Heon Yong Kwon, Min Seok Cho, Dae Sik Hong, Man-Seong Jeon, Kyoung-Chan Lim
  • CONTROL BOX, AND OUTDOOR UNIT OF AIR CONDITIONER COMPRISING SAME
    Publication number: 20160258636
    Abstract: The present invention relates to a control box and to an outdoor unit of an air conditioner comprising the same; the control box using a refrigerant cooling device and an air cooling device so as to radiate heat efficiently. The control box comprises: a case; a heat-radiating electronic component located inside the case; a refrigerant cooling device which is attached to one side of the case and makes contact with the electronic component so as to radiate heat to the outside; and an air cooling device which is attached to one side of the case and has a circulation fan for forcible circulating the air inside the case. Because the present invention is provided both with the refrigerant cooling device and the air cooling device, the electronic component inside the control box can radiate heat efficiently.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 8, 2016
    Inventors: Jong Tae Kim, Min Wook Park, Yong Ho Lee, Seong Hwan Jang, IL Kwon Jung
  • HYBRID SUPPORTED METALLOCENE CATALYST
    Publication number: 20160237187
    Abstract: The present invention relates to a hybrid supported metallocene catalyst. More specifically, the present invention relates to a hybrid supported metallocene catalyst using two or more different types or more of metallocene compounds, among which one type of the metallocene compounds shows a high polymerization activity even when it is supported, and thus the catalyst has an excellent activity and can be utilized in the polymerization of olefinic polymers having ultra-high molecular weight. Based on the hybrid supported metallocene catalyst of the present invention, an olefinic polymer having high molecular weight and the desired physical property can be prepared.
    Type: Application
    Filed: October 15, 2014
    Publication date: August 18, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Dae Sik HONG, Heon Yong KWON, Eun Kyoung SONG, Yong Ho LEE, Kyung Jin CHO, Ki Soo LEE, Yi Young CHOI
  • METHOD FOR PREPARING HYBRID SUPPORTED METALLOCENE CATALYST
    Publication number: 20160237188
    Abstract: The present invention relates to a method for preparing a hybrid supported metallocene catalyst. More specifically, the present invention relates to a method for preparing a hybrid supported metallocene catalyst by using two or more different types of metallocene compounds. One type of the metallocene compounds shows a high polymerization activity even when it is supported, and thus the catalyst has an excellent activity and can be utilized in the polymerization of olefinic polymers having ultra-high molecular weight. Based on the hybrid supported metallocene catalyst obtained according to the preparation method of the present invention, an olefinic polymer having high molecular weight and the desired physical property can be prepared.
    Type: Application
    Filed: October 15, 2014
    Publication date: August 18, 2016
    Inventors: Dae Sik HONG, Heon Yong KWON, Eun Kyoung SONG, Yong Ho LEE, Kyung Jin CHO, Ki Soo LEE, Yi Young CHOI
  • Ligand compound, catalyst system for olefin oligomerization, and method for olefin oligomerization using the same
    Patent number: 9409833
    Abstract: This disclosure relates to a novel ligand compound that can oligomerize ethylene with high catalyst activity and selectivity, a catalyst system for olefin oligomerization including the same, and a method for olefin oligomerization using the same.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 9, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ji Shin, Yong Ho Lee, Ki Soo Lee, Seok Pil Sa
  • SQUID SENSOR MODULE AND MAGNETOENCEPHALOGRAPHY MEASURING APPARATUS
    Publication number: 20160223622
    Abstract: Superconducting quantum interference device (SQUID) sensor module and a magnetoencephalography (MEG) measuring apparatus. The SQUID sensor module includes a fixed block having one end fixed to the sensor-mounted helmet, a bobbin having one end combined with the other end of the fixed block and having a groove in which a pick-up coil is wound, a bobbin fixing or attachment structure or material fixed to the other end of the fixed block via a through-hole formed in the center of the bobbin, a SQUID printed circuit board (PCB) disposed one an upper side surface of the bobbin and including a SQUID sensor, and a signal line connection PCB inserted into an outer circumferential surface of the fixed block and adapted to transmit a signal detected in the SQUID sensor to an external circuit.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Inventors: Kwon-Kyu Yu, Yong-Ho Lee, Kiwoong Kim, Jin-Mok Kim, Hyukchan Kwon, Sang-Kil Lee
  • METHOD OF PREPARING POLYOLEFIN, AND POLYOLEFIN PREPARED THEREBY (As Amended)
    Publication number: 20160222139
    Abstract: A method of preparing a polyolefin, wherein the method is used to more effectively prepare a polyolefin which has a high molecular weight and multimodal molecular weight distribution, thereby being preferably used for blow-molding or the like, and a polyolefin prepared thereby, are provided.
    Type: Application
    Filed: November 21, 2014
    Publication date: August 4, 2016
    Inventors: Kyung Jin CHO, Yong Ho LEE, Ki Soo LEE, Min Seok CHO, Se Young KIM, Sung Min LEE, Jin Young PARK
  • ARRAY ANTENNA DEVICE BASED ON SINGLE RF CHAIN AND IMPLEMENTATION METHOD THEREOF
    Publication number: 20160218424
    Abstract: Disclosed are an array antenna device based on a single RF chain and an implementation method thereof. The method includes: defining a modulation technique of a data stream of to be transmitted; defining an operating frequency and an implemented antenna structure parameter based on the defined modulation technique; randomly selecting a load combination by searching all load combinations implementable with respect to parasitic elements of an array antenna; evaluating power and a phase error for a basis pattern based on the modulation technique with respect to the selected load combination; and implementing the array antenna based on one or more selected load combinations according to evaluation results of the power and phase error for all load combinations.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 28, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ho LEE, Jung Hoon OH, Seung Hwan LEE, Jung Nam LEE, Gweon Do JO, Young Kyun CHO
  • Silica support, preparation method thereof and metallocene catalyst using the same
    Patent number: 9399690
    Abstract: This disclosure relates to a silica support for a metallocene catalyst used for olefin polymerization, a preparation method thereof, a metallocene catalyst using the same, and olefin polymer. Specifically, according to the present invention, a silica support used for preparing a metallocene supported catalyst is treated with a specific halogenized metal compound, thereby diversifying reaction sites to a cocatalyst when preparing a metallocene catalyst, and thus, the molecular weight distribution of produced olefin polymer may be much broadened and polymer having high molecular weight may be obtained compared to the existing support, even if the same metallocene catalyst is supported.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 26, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Dae Sik Hong, Ki Soo Lee, Heon Yong Kwon, Hyeon-Gook Kim, Eun Kyoung Song, Yong Ho Lee
  • METHOD FOR PREPARING OLEFIN OLIGOMER (As Amende)
    Publication number: 20160207850
    Abstract: The present invention relates to a process for preparing an olefin oligomer including a step of contacting an olefin monomer with a composite catalyst in the presence of a halogenated organic solvent, wherein the composite catalyst includes: a transition metal compound; a cocatalyst; and an organic ligand including a diphosphonoamine compound in which two or more diphosphonoamines are combined via a polyvalent functional group.
    Type: Application
    Filed: June 12, 2015
    Publication date: July 21, 2016
    Inventors: EUN JI SHIN, Yong Ho LEE, Seok Pil SA, Ki Soo LEE, Jin Young PARK
  • LIGAND COMPOUND, CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION, AND METHOD FOR OLEFIN OLIGOMERIZATION USING THE SAME
    Publication number: 20160207946
    Abstract: This disclosure relates to a ligand compound, a catalyst system for olefin oligomerization, and a method for olefin oligomerization using the same. The catalyst system for olefin oligomerization according to the present invention has excellent catalytic activity, and yet, exhibits high selectivity to 1-hexene or 1-octene, thus enabling more efficient preparation of alpha-olefin.
    Type: Application
    Filed: November 10, 2014
    Publication date: July 21, 2016
    Inventors: Eun Ji SHIN, Yong Ho LEE, Seok Pil SA, Ki Soo LEE