Patents by Inventor Seok-Pil SA

Seok-Pil SA 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: 20170305811
    Abstract: The method for oligomerizing olefin according to the present disclosure is a method for oligomerizing olefin using an oligomerization catalyst system and includes deteriorating the activity of the oligomerization catalyst system by injecting a deactivator in a latter part of a multimerization reaction of olefin. The deactivator may include an additive for polymer containing at least one functional group selected from the group consisting of a hydroxyl group, an amine group and an amide group. According to the oligomerizing method, the isomer of 1-hexene and/or 1-octene and alpha-olefins with C10 to C40 may be decreased via the restraint of the additional side reaction of a product. Since the deactivator is an additive for enhancing the physical properties of a polymer, a separating process thereof is not required, thereby improving economic feasibility and productivity.
    Type: Application
    Filed: February 2, 2016
    Publication date: October 26, 2017
    Inventors: Eun Ji SHIN, Yong Ho LEE, Seul Ki IM, Ki Soo LEE, Jin Young PARK, Seok Pil SA
  • Publication number: 20170267603
    Abstract: The present specification relates to an olefin oligomerization method and specifically to an olefin oligomerization method comprising the step of subjecting an olefin to a multimerization reaction by controlling a reaction temperature such that the weight ratio of 1-hexene to 1-octene within a product comprising 1-hexene and 1-octene has a predetermined value, in the presence of an oligomerization catalyst system comprising a ligand compound, a transition metal compound, and a cocatalyst, wherein the predetermined value for the weight ratio of 1-hexene to 1-octene within the product is selected in a range of 1:0.5 to 1:7. By the method, 1-hexene and 1-octene can be produced in a desired ratio.
    Type: Application
    Filed: February 2, 2016
    Publication date: September 21, 2017
    Inventors: Seul Ki IM, Yong Ho LEE, Eun Ji SHIN, Jin Young PARK, Seok Pil SA, Ki Soo LEE
  • Publication number: 20170260305
    Abstract: The present invention relates to a compound represented by the chemical formula 1, a catalyst system for olefin oligomerization comprising the same, and a method for oligomerizign olefins using the same, and the catalyst system for olefin oligomerization according to the present invention has excellent catalytic activity as well as high selectivity for 1-hexene or 1-octene, thereby enabling more efficient preparation of alpha-olefins.
    Type: Application
    Filed: September 1, 2016
    Publication date: September 14, 2017
    Inventors: Yong Ho LEE, Seul Ki IM, Eun Ji SHIN, Ki Soo LEE, Jin Young PARK, Seok Pil SA, Yoon Ki HONG
  • Patent number: 9731282
    Abstract: The present invention relates to a ligand compound, an organic chromium compound, a catalyst system for ethylene oligomerization, a preparation method thereof, and an ethylene oligomerization method using the same. The catalyst system for ethylene oligomerization according to the present invention is used to prepare a low-density polyethylene in one reactor by using a small amount of comonomers such as alpha-olefin or by using only ethylene without comonomers, because it maintains high catalytic activity and high alpha-olefin selectivity even though supported on a support.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: August 15, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Min-Seok Cho, Yong-Ho Lee, Seok-Pil Sa, Heon-Yong Kwon, Kyung-Jin Cho, Se-Young Kim, Sung-Min Lee, Ki-Soo Lee, Kyoung-Chan Lim
  • Patent number: 9701699
    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: Grant
    Filed: November 18, 2014
    Date of Patent: July 11, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Eun Ji Shin, Seok Pil Sa, Ki Soo Lee
  • Publication number: 20170158582
    Abstract: The present invention relates to a 1-octene composition. The 1-octene composition according to the present invention is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time.
    Type: Application
    Filed: September 16, 2015
    Publication date: June 8, 2017
    Inventors: Yong Ho LEE, Seok Pil SA, Eun Ji SHIN, Ki Soo LEE, Jin Young PARK, Seul Ki IM, Yoon Ki HONG
  • Patent number: 9643170
    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: June 28, 2016
    Date of Patent: May 9, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ji Shin, Yong Ho Lee, Ki Soo Lee, Seok Pil Sa
  • Patent number: 9637509
    Abstract: Provided are ligand compounds selected from among N-(diphenylphosphino)-1,1-diphenyl-N-(4-phenylbutan-2-yl)phosphinamine and N4,N4-bis(diphenylphosphino)-N1,N1-diethylpentane-1,4-diamine, a catalyst system for olefin oligomerization, and a method for olefin oligomerization using the same. The catalyst system for olefin oligomerization has excellent catalytic activity, and yet, exhibits high selectivity to 1-hexene or 1-octene, thus enabling more efficient preparation of alpha-olefin.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 2, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ji Shin, Yong Ho Lee, Seok Pil Sa, Ki Soo Lee
  • Patent number: 9637508
    Abstract: Provided are ligand compounds containing two or more diphosphinoamine functional groups, where the two or more diphosphinoamine functional groups are linked by 4 carbon atoms, a catalyst system including the ligand compounds 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: Grant
    Filed: November 18, 2014
    Date of Patent: May 2, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yong Ho Lee, Eun Ji Shin, Seok Pil Sa, Ki Soo Lee
  • Patent number: 9562062
    Abstract: The present invention relates to a ligand compound, a catalyst system for ethylene oligomerization, and a method for ethylene oligomerization using the same. The catalyst system for ethylene oligomerization according to the present invention not only has excellent catalytic activity but also shows more improved liquid olefin selectivity, and enables more effective preparation of an alpha-olefin through the oligomerization of ethylene because it is particularly possible to control the selectivity to 1-hexene or 1-octene.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 7, 2017
    Assignee: LG Chem, Ltd
    Inventors: Sung Min Lee, Yong Ho Lee, Min Seok Cho, Seok Pil Sa, Ki Soo Lee
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20160045906
    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: Application
    Filed: November 18, 2014
    Publication date: February 18, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Seok Pil SA, Yong Ho LEE, Ki Soo LEE, Eun Ji SHIN
  • Publication number: 20150361118
    Abstract: The present invention relates to a ligand compound, a catalyst system for ethylene oligomerization, and a method for ethylene oligomerization using the same. The catalyst system for ethylene oligomerization according to the present invention not only has excellent catalytic activity but also shows more improved liquid olefin selectivity, and enables more effective preparation of an alpha-olefin through the oligomerization of ethylene because it is particularly possible to control the selectivity to 1-hexene or 1-octene.
    Type: Application
    Filed: September 26, 2014
    Publication date: December 17, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung Min LEE, Yong Ho LEE, Min Seok CHO, Seok Pil SA, Ki Soo LEE
  • Publication number: 20150329440
    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: August 28, 2014
    Publication date: November 19, 2015
    Inventors: Eun Ji SHIN, Yong Ho LEE, Ki Soo LEE, Seok Pil SA