Patents by Inventor John A. Brunea

John A. Brunea 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).

  • ION-EXCHANGE MEMBRANES STRUCTURED IN THE THICKNESS AND PROCESS FOR MANUFACTURING THESE MEMBRANES
    Publication number: 20110189585
    Abstract: Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density Dsurface calculated on the thickness of the surface zones of at least Dtotal.
    Type: Application
    Filed: January 14, 2011
    Publication date: August 4, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventor: JOHN A. BRUNEA
  • Ion-exchange membranes structured in the thickness and process for manufacturing these membranes
    Patent number: 7901831
    Abstract: Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density Dsurface calculated on the thickness of the surface zones of at least Dtotal.
    Type: Grant
    Filed: October 10, 2005
    Date of Patent: March 8, 2011
    Assignee: SOLVAY (Société Anonyme)
    Inventor: John A. Brunea
  • Alkali fuel cell unaffected by carbonation
    Patent number: 7763391
    Abstract: An alkali fuel cell comprises a solid stack consisting of a first electrode, a solid membrane conducting hydroxide ions and a second electrode, each electrode comprising an active layer that is in contact with the solid membrane. The material forming the active layer of each electrode comprises at least a catalytic element, an electronic conductive element and an element conducting hydroxide ions. The element conducting hydroxide ions is a polymer having vinylaromatic units comprising a quaternary ammonium function and a hydroxide ion OH? is associated with each quaternary ammonium function. One such alkali fuel cell is unaffected by carbonation and maintains good electrochemical performances.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: July 27, 2010
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Didier Marsacq, Christel Roux, Max Perrin, John A. Brunea
  • ION-EXCHANGE MEMBRANES STRUCTURED IN THE THICKNESS AND PROCESS FOR MANUFACTURING THESE MEMBRANES
    Publication number: 20090029215
    Abstract: Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density Dsurface calculated on the thickness of the surface zones of at least Dtotal.
    Type: Application
    Filed: October 10, 2005
    Publication date: January 29, 2009
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventor: John A. Brunea