Patents Assigned to DSM N.W.
  • Process for the preparation of a pentenoate ester
    Patent number: 5495041
    Abstract: A process is described for the preparation of a pentenoate ester by carbonylation of butadiene or butadiene derivate in the presence of carbon monoxide, a alcohol and a catalyst system comprising palladium, an carboxylic acid and a phosphine ligand, wherein the carboxylic acid is pentenoic acid.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: February 27, 1996
    Assignees: DSM N.W., E. I. Du Pont de Nemours and Company
    Inventors: Otto E. Sielcken, Frank P. W. Agterberg, Nicolaas F. Haasen