Patents by Inventor Leo Iu

Leo Iu 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).

  • Highly isoselective catalyst for alkene hydroformylation
    Patent number: 10351583
    Abstract: Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various octofluorotoluene or hydrocarbon solvents and achieve an increase in isoselectivity with an increase in temperature, an increase in TON with an increase in temperature, and/or will show isoselectivity that is surprisingly high in comparison to the hydroformylation reactions using common solvents.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 16, 2019
    Assignee: Eastman Chemical Company
    Inventors: Leo Iu, Matthew Clarke, Kevin John Fontenot, Mesfin Ejerssa Janka
  • HIGHLY ISOSELECTIVE CATALYST FOR ALKENE HYDROFORMYLATION
    Publication number: 20190161508
    Abstract: Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various octofluorotoluene or hydrocarbon solvents and achieve an increase in isoselectivity with an increase in temperature, an increase in TON with an increase in temperature, and/or will show isoselectivity that is surprisingly high in comparison to the hydroformylation reactions using common solvents.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 30, 2019
    Applicant: Eastman Chemical Company
    Inventors: Leo Iu, Matthew Clarke, Kevin John Fontenot, Mesfin Ejerssa Janka
  • Highly isoselective catalyst for alkene hydroformylation
    Patent number: 10183961
    Abstract: Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various ester solvents and achieve an increase in isoselectivity with an increase in temperature, an increase in TON with an increase in temperature, and/or will show isoselectivity that is surprisingly high in comparison to the hydroformylation reactions using common solvents.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 22, 2019
    Assignee: Eastman Chemical Company
    Inventors: Leo Iu, Matthew Clarke, Mesfin Ejerssa Janka
  • Highly isoselective catalyst for alkene hydroformylation
    Patent number: 10144751
    Abstract: Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various octofluorotoluene or hydrocarbon solvents and achieve an increase in isoselectivity with an increase in temperature, an increase in TON with an increase in temperature, and/or will show isoselectivity that is surprisingly high in comparison to the hydroformylation reactions using common solvents.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 4, 2018
    Assignee: Eastman Chemical Company
    Inventors: Leo Iu, Matthew Clarke, Kevin John Fontenot, Mesfin Ejerssa Janka