Patents by Inventor Thomas Foo

Thomas Foo 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).

  • Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
    Patent number: 5821378
    Abstract: Improved liquid phase process useful in the hydrocyanation of diolefinic compounds to produce nonconjugated acyclic nitrites and to the liquid phase process of isomerization of the nitrites to 3- and/or 4-monoalkene linear nitriles. The improvement involves conducting the process in the presence of zero-valent nickel and a multidentate phosphite ligand. The invention also provides a novel method of making phosphorochloridite.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: October 13, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Foo, Wilson Tam
  • Process for hydrocyanation of diolefins and isomerization of nonconjugated 2 alkyl-3-monoalkenenitriles
    Patent number: 5693843
    Abstract: Described herein is a process for the hydrocyanation of diolefins by employing a catalyst comprising the combination of a zero-valent nickel compound and certain bidentate phosphorus compounds, and a process for isomerizing 2-alkyl-3-monoalkenenitrile to form linear nitriles by the use of such catalyst.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: December 2, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Anne Irisa Breikss, Thomas Foo
  • Preparation of triarylborane
    Patent number: 5382697
    Abstract: Preparation of triarylborane from catalyst residues containing nickel complexes with triarylborane by heating the complexes at reduced pressure, and recovering the triarylborane by condensation.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: January 17, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert L. Casalnuovo, Thomas Foo