Patents by Inventor Bernard Damin

Bernard Damin 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 manufacturing chlorolactones from unsaturated carboxylic acids
    Patent number: 4413133
    Abstract: Process for manufacturing chlorolactones by reacting, within an ahydrous organic solvent, a metal N-chlorosulfonamidate of the formula ##STR1## wherein R is a hydrogen or halogen atom or an alkyl radical, Ar is a mono- or polycyclic divalent aromatic radical and M is an alkali metal, with a substantially stoichiometrical proportion of an aliphatic or alicyclic carboxylic acid having at least one double bond separated from the COOH group by at least 2 carbon atoms, in the presence of a substantially stoichiometrical amount of a strong acid whose conjugate base is weakly nucleophilic.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: November 1, 1983
    Assignee: Institut Francais du Petrole
    Inventors: Bernard Damin, Alain Forestiere, Bernard Sillion