Patents by Inventor O-Hark Kwon

O-Hark Kwon 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: 8426651
    Abstract: The present invention relates to a catalyst composition for hydroformylation and a method for preparing aldehydes using the same, wherein the catalyst composition for hydroformylation comprises: a triaryl phosphine ligand; a phosphine oxide or phosphine sulfide ligand having a specific chemical formula; and a transition metal catalyst. The catalyst composition provides high catalyst activity and stability and selectivity to normal aldehydes when used in the hydroformylation for preparing aldehydes from olefins.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 23, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jae Hui Choi, Dong Hyun Ko, Sung Shik Eom, Moo Ho Hong, O Hark Kwon, Dae Chul Kim
  • Patent number: 8053605
    Abstract: The present invention relates to a catalyst composition that includes a triphenylphosphine ligand, a monodentate phosphine ligand, a monodentate phosphine oxide ligand, and a transition metal catalyst, and a hydroformylation process using the same. In the hydroformylation process using the catalyst composition according to the present invention, the high catalytic activity can be obtained, and the selectivity (N/I selectivity) in respects to normal- or iso-aldehyde can be desirably controlled.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: November 8, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, Sung-Shik Eom, Sang-Gi Lee, Moo-Ho Hong, O-Hark Kwon
  • Publication number: 20110201844
    Abstract: The present invention relates to a catalyst composition for hydroformylation and a method for preparing aldehydes using the same, wherein the catalyst composition for hydroformylation comprises: a triaryl phosphine ligand; a phosphine oxide or phosphine sulfide ligand having a specific chemical formula; and a transition metal catalyst. The catalyst composition provides high catalyst activity and stability and selectivity to normal aldehydes when used in the hydroformylation for preparing aldehydes from olefins.
    Type: Application
    Filed: April 22, 2011
    Publication date: August 18, 2011
    Inventors: Jae Hui Choi, Dong Hyun Ko, Sung Shik Eom, Moo Ho Hong, O Hark Kwon, Dae Chul Kim
  • Publication number: 20110135544
    Abstract: The present invention relates to a method for preparing aldehydes by reacting olefins with a synthesis gas including carbon monoxide and hydrogen, and to an apparatus therefore. More particularly, the present invention relates to a method for preparing aldehydes, characterized by spraying and supplying olefins, synthesis gas including carbon monoxide and hydrogen, and a catalyst composition into an oxo reactor through a nozzle, and to an apparatus therefore. According to the present invention, the hydroformylation efficiency can be improved, thereby obtaining desirable aldehydes with a high yield.
    Type: Application
    Filed: January 17, 2011
    Publication date: June 9, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Moo-Ho Hong, Dong-Hyun Ko, Sang-Oeb Na, Sung-Shik Eom, Sang-Gi Lee, O-Hark Kwon, Dae-Chul Kim, JAE-Hui Choi
  • Patent number: 7943801
    Abstract: The present invention relates to a catalyst composition that includes a bis-phosphite ligand, a poly-phosphite ligand or a mono-phosphite ligand, and a transition metal catalyst, and a hydroformylation reaction using the same. The catalyst composition has the excellent catalytic activity, and the normal/iso (N/I) selectivity of aldehyde generated by the hydroformylation reaction using the same is increased.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: May 17, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, Sung-Shik Eom, Ji-Joong Moon, Sang-Gi Lee, O-Hark Kwon
  • Patent number: 7939694
    Abstract: The present invention relates to a method for preparing aldehydes by reacting olefins with a synthesis gas including carbon monoxide and hydrogen, and to an apparatus therefore. More particularly, the present invention relates to a method for preparing aldehydes, characterized by spraying and supplying olefins, synthesis gas including carbon monoxide and hydrogen, and a catalyst composition into an oxo reactor through a nozzle, and to an apparatus therefore. According to the present invention, the hydroformylation efficiency can be improved, thereby obtaining desirable aldehydes with a high yield.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 10, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Moo-Ho Hong, Dong-Hyun Ko, Sang-Oeb Na, Sung-Shik Eom, Sang-Gi Lee, O-Hark Kwon, Dae-Chul Kim, Jae-Hui Choi
  • Publication number: 20100324339
    Abstract: The present invention relates to a catalyst composition that includes a triphenylphosphine ligand, a monodentate phosphine ligand, a monodentate phosphine oxide ligand, and a transition metal catalyst, and a hydroformylation process using the same. In the hydroformylation process using the catalyst composition according to the present invention, the high catalytic activity can be obtained, and the selectivity (N/I selectivity) in respects to normal- or iso-aldehyde can be desirably controlled.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 23, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, Sung-Shik Eom, Sang-Gi Lee, Moo-Ho Hong, O-Hark Kwon
  • Publication number: 20100185018
    Abstract: The present invention relates to a method for preparing aldehydes by reacting olefins with a synthesis gas including carbon monoxide and hydrogen, and to an apparatus therefore. More particularly, the present invention relates to a method for preparing aldehydes, characterized by spraying and supplying olefins, synthesis gas including carbon monoxide and hydrogen, and a catalyst composition into an oxo reactor through a nozzle, and to an apparatus therefore. According to the present invention, the hydroformylation efficiency can be improved, thereby obtaining desirable aldehydes with a high yield.
    Type: Application
    Filed: May 29, 2008
    Publication date: July 22, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Moo-Ho Hong, Dong-Hyun Ko, Sang-Oeb Na, Sung-Shik Eom, Sang-Gi Lee, O-Hark Kwon, Dae-Chul Kim, Jae-Hui Choi
  • Publication number: 20100130792
    Abstract: The present invention relates to a catalyst composition that includes a bis-phosphite ligand, a poly-phosphite ligand or a mono-phosphite ligand, and a transition metal catalyst, and a hydroformylation reaction using the same. The catalyst composition has the excellent catalytic activity, and the normal/iso (N/I) selectivity of aldehyde generated by the hydroformylation reaction using the same is increased.
    Type: Application
    Filed: April 8, 2008
    Publication date: May 27, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, Sung-Shik Eom, Ji-Joong Moon, Sang-Gi Lee, O-Hark Kwon