Patents by Inventor Yu-Taek Sung

Yu-Taek Sung 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: 11169066
    Abstract: The present application relates to a method for quantitative analysis of a polymer structure. Specifically, the method may be carried out through steps of measuring rheological properties and/or molecular weight distribution of the arbitrarily selected polymer, setting a random value for the selected polymer and then predicting the rheological property and/or the molecular weight distribution of the polymer from the random value, and comparing the measured value with the predicted value to determine the value of the structural parameter of the polymer.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 9, 2021
    Inventors: Sung Hyun Park, Chae Gyu Lee, Ye Hoon Im, Yu Taek Sung, Myung Han Lee, Oh Joo Kwon, Heon Yong Kwon, Dae Sik Hong
  • Patent number: 10344102
    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 mechanical properties, thereby being usefully applied according to the intended use.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 9, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Joong Soo Kim, Yu Taek Sung, Ki Soo Lee, Dae Sik Hong, Ki Heon Song, Eun Kyoung Song, Heon Yong Kwon, Yong Ho Lee, Dong Hoon Jeong, Soon Ho Sun, Sun Mi Kim
  • Patent number: 10323110
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Sun, Yi Young Choi, Ki Soo Lee, Eun Kyoung Song, Yu Taek Sung, Ye Jin Lee, Chang Woan Han, Sol Cho
  • Patent number: 10316116
    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: Grant
    Filed: December 2, 2015
    Date of Patent: June 11, 2019
    Assignee: 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
  • Patent number: 10266626
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and surface characteristics and thus can be usefully applied to various products.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: April 23, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yu Taek Sung, Soon Ho Sun, Sol Cho, Yi Young Choi, Ki Soo Lee
  • Patent number: 10253122
    Abstract: The present invention relates to ethylene-1-hexene-1-butene terpolymer and a film including the same. The ethylene-1-hexene-1-butene terpolymer according to the present invention has an optimized range of density and melt index and includes 1-hexene and 1-butene as comonomers, and can provide a polymer showing excellent properties by regulating the content ratio of the comonomers in a certain range. Therefore, the film prepared by using the same can be usefully used because it has excellent stickiness, processibility, and falling dart impact strength which are especially suitable for stretch films.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: April 9, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Yu Taek Sung, Heon Yong Kwon, Dae Sik Hong, Seung Mi Lee, Ki Soo Lee, Dong Hoon Jeong, Eun Young Shin, Chang-Hwan Jang
  • Publication number: 20180306694
    Abstract: The present application relates to a method for quantitative analysis of a polymer structure. Specifically, the method may be carried out through steps of measuring rheological properties and/or molecular weight distribution of the arbitrarily selected polymer, setting a random value for the selected polymer and then predicting the rheological property and/or the molecular weight distribution of the polymer from the random value, and comparing the measured value with the predicted value to determine the value of the structural parameter of the polymer.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 25, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hyun Park, Chae Gyu Lee, Ye Hoon Im, Yu Taek Sung, Myung Han Lee, Oh Joo Kwon, Heon Yong Kwon, Dae Sik Hong
  • Publication number: 20180223009
    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 mechanical properties, thereby being usefully applied according to the intended use.
    Type: Application
    Filed: September 4, 2015
    Publication date: August 9, 2018
    Inventors: Joong Soo KIM, Yu Taek SUNG, Ki Soo LEE, Dae Sik HONG, Ki Heon SONG, Eun Kyoung SONG, Heon Yong KWON, Yong Ho LEE, Dong Hoon JEONG, Soon Ho SUN, Sun Mi KIM
  • Publication number: 20180208693
    Abstract: The present invention relates to ethylene-1-hexene-1-butene terpolymer and a film including the same. The ethylene-1-hexene-1-butene terpolymer according to the present invention has an optimized range of density and melt index and includes 1-hexene and 1-butene as comonomers, and can provide a polymer showing excellent properties by regulating the content ratio of the comonomers in a certain range. Therefore, the film prepared by using the same can be usefully used because it has excellent stickiness, processibility, and falling dart impact strength which are especially suitable for stretch films.
    Type: Application
    Filed: July 17, 2015
    Publication date: July 26, 2018
    Inventors: Yu Taek SUNG, Heon Yong KWON, Dae Sik HONG, Seung Mi LEE, Ki Soo LEE, Dong Hoon JEONG, Eun Young SHIN, Chang-Hwan JANG
  • Publication number: 20180030180
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and surface characteristics and thus can be usefully applied to various products.
    Type: Application
    Filed: April 12, 2016
    Publication date: February 1, 2018
    Inventors: Yu Taek SUNG, Soon Ho SUN, Sol CHO, Yi Young CHOI, Ki Soo LEE
  • 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
  • Publication number: 20170233511
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 17, 2017
    Inventors: Soon Ho SUN, Yi Young CHOI, Ki Soo LEE, Eun Kyoung SONG, Yu Taek SUNG, Ye Jin LEE, Chang Woan HAN, Sol CHO
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 9494712
    Abstract: Provided are a resin composition for an optical film including an alkyl(meth)acrylate unit, a benzyl(meth)acrylate unit, a (meth)acrylic acid unit, and a unit expressed by Chemical Formula I, an optical film, a polarizing plate, and an image display device using the resin composition.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Bum Seo, Chang-Hun Han, Dae-Woo Lee, Jung-Tae Park, Eun-Jung Choi, Byoung-Il Kang, Joon-Sik Kim, Su-Kyung Kim, Da-Eun Sung, Nam-Jeong Lee, Beom-Suk Kim, Yu-Taek Sung
  • 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