Patents by Inventor Emilio E. Brunel

Emilio E. Brunel 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 making adipic acid
    Patent number: 7399883
    Abstract: Disclosed in a process for making (1) a compound of the formula NC—CH2—CH2—CH2—CH2—CO2R?, wherein R? is H or C1 to C12 alkyl, or (2) adipic acid or (3) dimethyl adipate, using as the substrate, 3-pentenenitrile, (2) 3-pentenoic acid or methyl 3-pentenoate, respectively, by contacting the substrate with carbon monoxide and a nucleophile in the presence of a Group VIII metal, a selected ligand, and an acid promoter. The nucleophile, which (a) an alcohol or water, or (b) water or (c) methanol, respectively, in the presence of a Group VIII metal, preferably palladium, a selected phosphine ligand, and an acid promoter.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: July 15, 2008
    Assignee: Invista North America S.A.R.L.
    Inventors: Emilio E. Brunel, David A. Clark