Patents by Inventor Jacques Chaussard

Jacques Chaussard 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).

  • Patent number: 4824532
    Abstract: The invention relates to a process for the electrosynthesis of carboxylic acids of general formula R-COOH in which R is an organic radical by the electrochemical reduction, in the presence of carbon dioxide, of organic compounds corresponding to the general formula R--Y in which R is the above-mentioned organic radical and Y is a hetero atom-containing radical, the hetero atom of the radical Y, chosen from the group consisting of oxygen, nitrogen, sulphur andphosphorus, being directly linked to a carbon atom of the radical R by a single covalent linkage. When the hetero atom is nitrogen or phosphorus, the radical Y is an ammonium or phosphonium radical respectively.The anode, which is consumed during the electrosynthesis, is made of a metal chosen from the group consisting of reducing metals and their alloys, preferably made of magnesium, aluminium or zinc.This process without catalyst is very simple to perform and enables a cell with a single compartment to be employed.
    Type: Grant
    Filed: January 7, 1988
    Date of Patent: April 25, 1989
    Assignee: Societe Nationale Industrielle et Aerospatiale des Poudres et
    Inventors: Marie-Odile Moingeon, Jacques Chaussard, Michel Troupel, Christophe Saboureau
  • Patent number: 4686018
    Abstract: The present invention relates to a cell for the organic electrosynthesis of organic or organometallic compounds, containing two electrodes (2) and (4) of which only one (4) is sacrificed by the electrochemical reaction of which it forms the seat.The sacrificial electrode (4) consists of at least one solid metal block and is applied under the influence of its own weight against the other electrode (2) from which it is separated by an electrical insulating material (5) which allows the passage of the electrolytic solution (6) and of which the shape and the dimensions enable the active substances of the two electrodes (2) and (4) to remain parallel.The active surface of the electrode (2) has a constant inclination relative to a direction D (9) forming an angle less than 45 degrees with the vertical on the one hand, and an inclination less than 45 degrees relative to the vertical on the other.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: August 11, 1987
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventor: Jacques Chaussard
  • Patent number: 4629541
    Abstract: The invention relates to a process for the synthesis of ketones by electrochemical reduction of organic halides in the presence of organic acid anhydrides in an electrolysis cell in an organic solvent medium containing a supporting electrolyte. The anode is a metal chosen from the group consisting of magnesium, aluminium, zinc and their alloys. This process has the advantage of being simple and readily capable of being converted to an industrial scale, particularly because of the possibility of employing a cell which has only one compartment. It can be applied to the electrosynthesis of numerous ketones.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: December 16, 1986
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Marie-Odile Moingeon, Jacques Chaussard