Patents by Inventor Philippe Kalk

Philippe Kalk 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).

  • Binuclear rhodium complex as a hydroformylation and hydrogenation catalyst
    Patent number: 4481375
    Abstract: The present invention relates to hydrogenation and hydroformylation catalysts based on a binuclear rhodium complex having the formula: ##STR1## wherein X and X' can be the same or different; when X and X' are the same they are organic tertiary phosphite groups and when different X is a CO group and X' is an organic tertiary phosphite group or an aromatic phosphine group, and SY and SY' are thiolato groups. The invention also comprises the processes of hydroformylation and hydrogenation using such catalytic complex.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: November 6, 1984
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Philippe Kalk, Rene Poilblanc, Antoine Gaset