Patents by Inventor Jaehui Choi

Jaehui Choi 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).

  • Phosphorus-containing catalyst composition and process for hydroformylation reaction using the same
    Patent number: 7425656
    Abstract: Provided are a catalyst composition including a transition metal catalyst and a nitrogen-containing bidentate phosphorus compound and a process for hydroformylation reaction of olefins to prepare aldehydes which includes stirring the catalyst composition, an olefin compound, and a gas mixture of of carbon monoxide and hydrogen, under high temperature and pressure condition. Therefore, very high catalytic activity and high selectivity in normal-aldehyde or iso-aldehyde according to the type of a substiuent are ensured.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: September 16, 2008
    Assignee: LG Chem, Ltd
    Inventors: You Moon Jeon, Donghyun Ko, Sungshik Eom, O Hak Kwon, Jaehui Choi
  • Phsphorus-containing catalyst composition and process for hydroformylation reaction using the same
    Publication number: 20060058558
    Abstract: Provided are a catalyst composition including a transition metal catalyst and a nitrogen-containing bidentate phosphorus compound and a process for hydroformylation reaction of olefins to prepare aldehydes which includes stirring the catalyst composition, an olefin compound, and a gas mixture of of carbon monoxide and hydrogen, under high temperature and pressure condition. Therefore, very high catalytic activity and high selectivity in normal-aldehyde or iso-aldehyde according to the type of a substiuent are ensured.
    Type: Application
    Filed: September 15, 2005
    Publication date: March 16, 2006
    Inventors: You Jeon, Donghyun Ko, Sungshik Eom, O Hak Kwon, Jaehui Choi