Patents Examined by Robert W. Rawsuer
  • Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions thereof
    Patent number: 5959135
    Abstract: A process for hydrocyanation of an aliphatic monoethylenically unsaturated compound, in which the ethylenic double bond is not conjugated to any other unsaturated group in the molecule, which process uses a catalyst composition comprising a zero-valent nickel and a multidentate phosphite ligand in the presence of a Lewis acid promoter.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: September 28, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Michael Garner, Wilson Tam