Patents by Inventor Tack-Kyu Han

Tack-Kyu 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).

  • Catalyst systems for preparing 1-hexene and/or 1-octene from ethylene
    Patent number: 9375709
    Abstract: This invention relates to a catalyst system for selective oligomerization of ethylene, which includes (i) a chromium compound; (ii) a ligand having a P—C—C—P backbone structure; and (iii) an activator, thus preparing 1-hexene and/or 1-octene with high activity and selectivity.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 28, 2016
    Assignees: SK INNOVATION CO., LTD., SK GLOBAL CHEMICAL CO., LTD.
    Inventors: Tack Kyu Han, Min Seon Jung, Dong Chul Shin, Ho Seong Lee, Sung Seok Chae, Jong Sok Han
  • CATALYST SYSTEMS FOR PREPARING 1-HEXENE AND/OR 1-OCTENE FROM ETHYLENE
    Publication number: 20150045603
    Abstract: This invention relates to a catalyst system for selective oligomerization of ethylene, which includes (i) a chromium compound; (ii) a ligand having a P—C—C—P backbone structure; and (iii) an activator, thus preparing 1-hexene and/or 1-octene with high activity and selectivity.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 12, 2015
    Inventors: Tack Kyu Han, Min Seon Jung, Dong Chul Shin, Ho Seong Lee, Sung Seok Chae, Jong Sok Han
  • Highly active and selective ethylene oligomerization catalyst and method of preparing hexene or octene using the same
    Patent number: 8829218
    Abstract: This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: September 9, 2014
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Tack-Kyu Han, Sang-Ook Kang, Sung-Kwan Kim
  • Highly Active and Selective Ethylene Oligomerization Catalyst and Method of Preparing Hexene or Octene Using the Same
    Publication number: 20120130086
    Abstract: This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same.
    Type: Application
    Filed: March 3, 2010
    Publication date: May 24, 2012
    Applicants: SK GLOBAL CHEMICAL CO., LTD., SK INNOVATION CO., LTD.
    Inventors: Tack-Kyu Han, Sang-Ook Kang, Sung-Kwan Kim