Patents by Inventor Chang Woan HAN

Chang Woan HAN 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: 20170137545
    Abstract: Provided are a novel metallocene compound, a catalyst composition including the same, and a method of preparing an olefin-based polymer using the same. The metallocene compound according to the present invention or the catalyst composition including the same may be used for the preparation of an olefin-based polymer, may have excellent polymerization ability, and may produce an olefin-based polymer having a high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefin-based polymer having a high molecular weight may be polymerized because the metallocene compound shows high polymerization activity even when it is supported on a support and maintains high activity even in the presence of hydrogen because of its low hydrogen reactivity.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 18, 2017
    Inventors: Yong Ho LEE, Kyung Jin CHO, Jin Young PARK, Ki Soo LEE, Min Seok CHO, Se Young KIM, Sung Min LEE, Chang Woan HAN
  • Publication number: 20170107307
    Abstract: Provided are a novel metallocene compound, a catalyst composition including the same, and a method of preparing a polyolefin using the same. The metallocene compound according to the present invention and the catalyst composition including the same may be used for the preparation of a polyolefin, may have excellent polymerization ability, and may produce a polyolefin having an ultra-high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefin-based polymer having an ultra-high molecular weight may be polymerized because the metallocene compound shows high polymerization activity even when it is supported on a support.
    Type: Application
    Filed: January 28, 2015
    Publication date: April 20, 2017
    Inventors: Jin Young PARK, Yong Ho LEE, Kyung Jin CHO, Ki Soo LEE, Bog Ki HONG, Min Seok CHO, Dae Hwan KIM, Se Young KIM, Sung Min LEE, Chang Woan HAN, Sung Ho PARK
  • 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
  • Publication number: 20160194422
    Abstract: Provided are a metallocene compound having a novel structure capable of preparing a polyolefin having a broad molecular weight distribution and a high molecular weight, and a method of preparing the same. The metallocene compound according to the present invention includes a non-crosslinked catalyst structure, and implements copolymerizability in an ansa-type catalyst level, thereby preparing a polyolefin having a high molecular weight of 300,0000 or more.
    Type: Application
    Filed: June 2, 2015
    Publication date: July 7, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Se Young KIM, Min Seok CHO, Dae Hwan KIM, Sung Min LEE, Sung Ho PARK, Ki Soo LEE, Bog Ki HONG, Yong Ho LEE, Kyung Jin CHO, Chang Woan HAN, Jin Young PARK