Patents by Inventor Gerhard Hillebrand

Gerhard Hillebrand 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).

  • Catalyst based on cobalt and/or rhodium employed in a two-phase medium
    Patent number: 6677268
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: January 13, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Catalyst based on cobalt and/or rhodium employed in a two-phase medium
    Publication number: 20030055299
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium coordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 20, 2003
    Applicant: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Process for hydroformylation using a catalyst based on cobalt and/or rhodium employed in a two-phase medium
    Patent number: 6469216
    Abstract: In an improved process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium employed in a two-phase medium, a catalyst based on cobalt and/or rhodium is used dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C., in which the aldehydes formed are slightly soluble or insoluble. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion. At the end of the reaction, the organic phase is generally separated and the ionic non-aqueous solvent phase containing the catalyst can be re-used.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: October 22, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, André Hirschauer, Dominique Commereuc, Hélène Olivier-Bourbigou, Lucien Saussine
  • Process for hydroformylation using a catalyst based on cobalt and/or rhodium employed in a two-phase medium
    Publication number: 20010039363
    Abstract: In an improved process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium employed in a two-phase medium, a catalyst based on cobalt and/or rhodium is used dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C., in which the aldehydes formed are slightly soluble or insoluble. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion. At the end of the reaction, the organic phase is generally separated and the ionic non-aqueous solvent phase containing the catalyst can be re-used.
    Type: Application
    Filed: December 7, 2000
    Publication date: November 8, 2001
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine