Patents by Inventor Adrian F. Da Costa

Adrian F. Da Costa 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).

  • Branched olefin compositions
    Patent number: 7919551
    Abstract: Olefin compositions comprising C5 to C13 branched chain olefins are stabilised by the addition of 5 to less than 50 ppm by weight of antioxidant. These lower than normal amounts of antioxidant enable improved yields in a hydroformylation reaction using the olefin composition as feedstock and in esterification reactions employing the alcohol produced in the hydroformylation reaction. Consistent lower levels of antioxidant can be achieved by use of a liquid antioxidant and a pump driven dosing system.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: April 5, 2011
    Assignee: ExxonMobilChemical Patents Inc.
    Inventors: Nicolaas A. De Munck, Peter J. Ayre, Adrian F. Da Costa, Edwin Kooke
  • Branched Olefin Compositions
    Publication number: 20080293860
    Abstract: Olefin compositions comprising C5 to C13 branched chain olefins are stabilised by the addition of 5 to less than 50 ppm by weight of antioxidant. These lower than normal amounts of antioxidant enable improved yields in a hydroformylation reaction using the olefin composition as feedstock and in esterification reactions employing the alcohol produced in the hydroformylation reaction. Consistent lower levels of antioxidant can be achieved by use of a liquid antioxidant and a pump driven dosing system.
    Type: Application
    Filed: April 12, 2006
    Publication date: November 27, 2008
    Inventors: Nicolaas A. De Munck, Peter J. Ayre, Adrian F. Da Costa, Edwin Kooke