Patents Examined by Michael Shippan
  • Preparation of isobutyric acid and esters
    Patent number: 4292437
    Abstract: Preparation of isobutyric acid and esters by carbonylation of propylene in the presence of water or an alcohol, a palladium catalyst and ortho-substituted triarylphosphine.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: September 29, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward N. Squire, Francis J. Waller