Patents by Inventor Dae-sik Hong

Dae-sik Hong 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).

  • OLEFIN-BASED POLYMER HAVING EXCELLENT MELT STRENGTH AND FILM INCLUDING THE SAME
    Publication number: 20170320978
    Abstract: Provided are an olefin-based polymer having excellent melt strength and a film including the same. The olefin-based polymer according to the present invention may have excellent processability, haze and mechanical properties, and in particular, high melt strength, thereby being usefully applied to films, etc.
    Type: Application
    Filed: December 2, 2015
    Publication date: November 9, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Dong Hoon JEONG, Heon Yong KWON, Yu Taek SUNG, Ki Soo LEE, Dae Sik HONG, Eun Young SHIN, Soon Ho SUN
  • METHOD FOR PREPARING POLYOLEFIN POLYMER FOR FIBER PRODUCTION
    Publication number: 20170291969
    Abstract: The present invention relates to a polyolefin which exhibits a narrow molecular weight distribution, high strength, and a high stretching ratio, and a preparation method therefor. According to the present invention, it is possible to provide polyethylene with high catalyst activity, high molecular weight, and controlled molecular weight distribution by using, in polymerization of an olefin monomer, a hybrid supported metallocene catalyst in which a borate compound is used as a second cocatalyst. In addition, if the polyolefin is processed, it is possible to produce a fiber with excellent mechanical properties and an excellent stretching ratio.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 12, 2017
    Inventors: Seung Mi LEE, Yi Young CHOI, Dae Sik HONG, Eun Kyoung SONG, Heon Yong KWON, Young Suk YOU, Ki Soo LEE, Ki Heon SONG
  • CELL CONTROL DEVICE AND OPERATION METHOD THEREFOR
    Publication number: 20170265203
    Abstract: A cell control device achieves optimal interference control taking into account a different between the DL interference strength and the UL interference strength by an adjacent cell by way of controlling cells based on D-TDD in a network environment where a number of cells employing TDD coexist. A method of operating a cell control device is also disclosed.
    Type: Application
    Filed: July 28, 2015
    Publication date: September 14, 2017
    Inventors: Min Soo NA, Young Lak KIM, Tak Ki YU, Sung Ho MOON, Dae Sik HONG, Han Ho WANG, Kwon Jong LEE
  • BASE STATION MANAGEMENT APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20170257781
    Abstract: A base station controller optimally controls activation/deactivation of small base stations in a heterogeneous network environment in which a number of base stations forming cells of different sizes coexist in the same area, taking into account traffic volume as well as signal interference. A method for operating the base station controller is also disclosed.
    Type: Application
    Filed: May 19, 2015
    Publication date: September 7, 2017
    Inventors: Tak Ki YU, Young Lak KIM, Min Soo NA, Sung Ho MOON, Tae Guen KIM, Dae Sik HONG, Yo Seop PARK, Kwon Jong LEE, Hyun Soo KIM, Han Ho WANG
  • Olefin-based polymer with excellent processability
    Patent number: 9732171
    Abstract: Provided is an olefin-based polymer with excellent processability. The olefin-based polymer according to the present invention has a high molecular weight and a broad molecular weight distribution to show excellent processability and improved transparency, thereby being used in desired applications.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 15, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yu Taek Sung, Heon Yong Kwon, Ki Soo Lee, Dae Sik Hong, Dong Hoon Jeong, Eun Young Shin
  • Ethylene/1-hexene or ethylene/1-butene copolymer having excellent processibility and environmetal stress crack resistance
    Patent number: 9732172
    Abstract: The present invention relates to an ethylene/1-hexene or ethylene/1-butene copolymer having excellent processibility. The ethylene/1-hexene or ethylene/1-butene copolymer according to the present invention has high molecular weight and wide molecular weight distribution, and thus excellent processibility, and has excellent environmental stress crack resistance, and thus, may be applied for a high inner pressure heating pipe, a mining pipe, or a large-diameter pipe, and the like.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 15, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Joong Soo Kim, Hyuck Ju Kwon, Yi Young Choi, Ki Soo Lee, Eun Kyoung Song, Nak-Kyu Song, Dae Sik Hong, Woo Ri Kim, Si Yong Kim
  • Metallocene compound, a catalyst composition comprising the same, and a method of preparing an olefinic polymer by using the same
    Patent number: 9725472
    Abstract: The present invention relates to a novel metallocene compound, a catalyst composition including the same, and a method of preparing an olefinic polymer by using the same. The metallocene compound according to the present invention and the catalyst composition comprising the same can be used for producing olefinic polymers, have outstanding polymerizing ability, and can produce olefinic polymers of ultra high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefinic polymer of ultra high molecular weight can be obtained because it shows high polymerization activity even when it is supported on a carrier and maintains high activity even in the presence of hydrogen because of its low hydrogen reactivity.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Eun Kyoung Song, Kyung Jin Cho, Ki Soo Lee, Se Young Kim, Sung Min Lee, Hyuck Ju Kwon, Yi Young Choi, Heon Yong Kwon, Min Seok Cho, Dae Sik Hong
  • Metallocene compound, a catalyst composition comprising the same, and a method of preparing an olefinic polymer by using the same
    Patent number: 9725533
    Abstract: The present invention relates to a novel metallocene compound, a catalyst composition including the same, and a method of preparing an olefinic polymer by using the same. The metallocene compound according to the present invention and the catalyst composition comprising the same can be used for producing olefinic polymers, have outstanding polymerizing ability, and can produce olefinic polymers of ultra high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefinic polymer of ultra high molecular weight can be obtained because it shows high polymerization activity even when it is supported on a carrier and maintains high activity even in the presence of hydrogen because of its low hydrogen reactivity.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Eun Kyoung Song, Kyung Jin Cho, Ki Soo Lee, Se Young Kim, Sung Min Lee, Hyuck Ju Kwon, Yi Young Choi, Heon Yong Kwon, Min Seok Cho, Dae Sik Hong
  • Silica support, preparation method thereof and metallocene catalyst using the same
    Patent number: 9670297
    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: June 2, 2016
    Date of Patent: June 6, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Dae Sik Hong, Ki Soo Lee, Heon Yong Kwon, Hyeon-Gook Kim, Eun Kyoung Song, Yong Ho Lee
  • BASE STATION DEVICE AND METHOD FOR OPERATING SAME
    Publication number: 20170155483
    Abstract: The present invention discloses a base station device which, in a heterogeneous network environment where various base stations forming cells with different sizes coexist in the same area, improves performance of coordinated multi-point (CoMP) transmission and reception by reflecting environmental characteristics that cells with difference sizes coexist, and an operating method of the base station device.
    Type: Application
    Filed: June 5, 2015
    Publication date: June 1, 2017
    Inventors: Min Soo NA, Tak Ki YU, Young Lak KIM, Sung Ho MOON, Tae Guen KIM, Dae Sik HONG, Han Ho WANG, Yo Seop PARK
  • Preparation method of a supported metallocene catalyst
    Patent number: 9657119
    Abstract: The present invention relates to a preparation method of a highly active supported metallocene catalyst which can prepare a polyolefin of high bulk density. More specifically, the present invention provides a method of preparing the supported metallocene catalyst in which one or more metallocene catalysts are loaded on the silica carrier of which the inside is penetrated by more cocatalyst than the prior art and the outside is attached with a substantial amount of the cocatalyst. The catalyst according to the present invention can prepare a polyolefin polymer with improved bulk density and efficiency while maintaining its highly active catalytic characteristic.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 23, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Seung Mi Lee, Yi Young Choi, Ki Soo Lee, Eun Kyoung Song, Heon Yong Kwon, Min Seok Cho, Dae Sik Hong, Hyun Jee Kwon, Yu Taek Sung, Dong Hoon Jeong
  • Olefin block copolymer
    Patent number: 9644064
    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: Grant
    Filed: June 9, 2016
    Date of Patent: May 9, 2017
    Assignee: LG CHEM, LTD.
    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
  • Olefin based polymer having excellent processability
    Patent number: 9587056
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer having excellent processability. The copolymer according to the present invention has a high molecular weight and a broad molecular weight distribution and exhibits an excellent processability and an improved mechanical physical property, and thus can be effectively used for the application in need thereof.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: March 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yu Taek Sung, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Se Young Kim, Sung Min Lee, Dong Hoon Jeong, Eun Young Shin, Hyun Jee Kwon
  • METHOD FOR PREPARING POLYOLEFIN AND POLYOLEFIN PREPARED THEREBY
    Publication number: 20170029538
    Abstract: The present invention relates to a method for preparing polyolefin that can easily and effectively prepare polyolefin having high molecular weight and various molecular weight distributions, which was difficult to prepare using the existing metallocene catalyst, and polyolefin prepared thereby. The method for preparing polyolefin comprises the step of polymerizing olefin monomers, in the presence of a metallocene supported catalyst wherein a metallocene compound having a specific chemical structure is supported in a carrier, and hydrogen gas.
    Type: Application
    Filed: June 3, 2015
    Publication date: February 2, 2017
    Inventors: Eun Kyoung SONG, Heon Yong KWON, Hyuck Ju KWON, Yong Ho LEE, Yi Young CHOI, Dae Sik HONG, Ki Soo LEE, Kyung Jin CHO
  • Supported hybrid catalyst and method for preparing olefin-based polymer using the same
    Patent number: 9556289
    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: Grant
    Filed: September 7, 2015
    Date of Patent: January 31, 2017
    Assignee: 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
  • OLEFIN-BASED POLYMER WITH EXCELLENT PROCESSABILITY
    Publication number: 20160369020
    Abstract: Provided is an olefin-based polymer with excellent processability. The olefin-based polymer according to the present invention has a high molecular weight and a broad molecular weight distribution to show excellent processability and improved transparency, thereby being used in desired applications.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 22, 2016
    Inventors: Yu Taek SUNG, Heon Yong KWON, Ki Soo LEE, Dae Sik HONG, Dong Hoon JEONG, Eun Young SHIN
  • OLEFIN BASED POLYMER HAVING EXCELLENT PROCESSABILITY (As amended)
    Publication number: 20160333124
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer having excellent processability. The copolymer according to the present invention has a high molecular weight and a broad molecular weight distribution and exhibits an excellent processability and an improved mechanical physical property, and thus can be effectively used for the application in need thereof.
    Type: Application
    Filed: December 15, 2015
    Publication date: November 17, 2016
    Inventors: Yu Taek SUNG, Ki Soo LEE, Heon Yong KWON, Dae Sik HONG, Se Young KIM, Sung Min LEE, Dong Hoon JEONG, Eun Young SHIN, Hyun Jee KWON
  • A PREPARATION METHOD OF A SUPPORTED METALLOCENE CATALYST
    Publication number: 20160304637
    Abstract: The present invention relates to a preparation method of a highly active supported metallocene catalyst which can prepare a polyolefin of high bulk density. More specifically, the present invention provides a method of preparing the supported metallocene catalyst in which one or more metallocene catalysts are loaded on the silica carrier of which the inside is penetrated by more cocatalyst than the prior art and the outside is attached with a substantial amount of the cocatalyst. The catalyst according to the present invention can prepare a polyolefin polymer with improved bulk density and efficiency while maintaining its highly active catalytic characteristic.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 20, 2016
    Applicant: LM CHEM, LTD.
    Inventors: Seung Mi LEE, Yi Young CHOI, Ki Soo LEE, Eun Kyoung SONG, Heon Yong KWON, Min Seok CHO, Dae Sik HONG, Hyun Jee KWON, Yu Taek SUNG, Dong Hoon JEONG
  • 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
  • Method and device for transmitting and receiving available channel information based on directivity in wireless communication system
    Patent number: 9468007
    Abstract: Disclosed are a method and device for transmitting and receiving available channel information based on directivity in a wireless communication system. A method for enabling a station (STA) to receive available channel information in a whitespace band according to one embodiment of the present invention comprises the steps of: determining a current position of the STA and a position at which the direction is changed on a moving path of the STA; determining K (K?1) operating ranges based on the current position of the STA and the position at which the direction is changed; transmitting a channel availability query (CAQ) request frame for the K operating ranges to a database; and receiving available channel information on the K operating ranges through a CAQ response frame from the database.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 11, 2016
    Assignees: LG ELECTRONICS INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Eunsun Kim, Dae Sik Hong, Gosan Noh, Yongho Seok, Ji-Haeng Heo