Patents by Inventor Michael A. Blessing

Michael A. Blessing 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).

  • Process for recovery of phosphorus ligand from vaporized aldehyde
    Patent number: 5110990
    Abstract: An improved rhodium catalyzed liquid recycle hydroformylation process, the improvement which comprises selectively separating and recovering phosphorus ligand from the vaporized aldehyde product stream obtained from volatilizing and separating the aldehyde product from the catalyst containing reaction product solution of the hydroformylation process.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: May 5, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Michael A. Blessing, Gregory J. Dembowski, Gregory K. Finnell
  • Hydroformylation process
    Patent number: 4593127
    Abstract: In a primary process for hydroformylating olefins to form aldehydes in which a liquid or gas recycle step is conducted and a gaseous effluent is vented, the improvement which comprises employing the effluent as a reactant feed for a decoupled secondary liquid-or gas recycle hydroformylation process conducted conjointly therewith.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: June 3, 1986
    Assignee: Union Carbide Corporation
    Inventors: Donald L. Bunning, Michael A. Blessing