Patents by Inventor Faïza Bergaya

Faïza Bergaya 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 preparing proton-conducting clay particles and composite material comprising such particles
    Patent number: 8562728
    Abstract: The invention relates to a process for preparing proton-conducting clay particles, successively comprising the following steps: a) a step of activating a clay powder, comprising a step in which the said powder is subjected to a gas plasma; b) a grafting step comprising a step of placing the activated powder obtained from step a) in contact with a solution comprising at least one compound comprising at least one group chosen from —PO3H2, —CO2H and —SO3H and salts thereof and comprising at least one group capable of grafting onto the surface of the said powder. Use of these particles for the manufacture of fuel cell membranes.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: October 22, 2013
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Hervé Galiano, Magaly Caravanier-Caillon, Philippe Bebin, Patrick Hourquebie, Faïza Bergaya, Fabienne Poncin Epaillard, Fabrice Lafleche
  • Process for Preparing Proton-Conducting Clay Particles and Composite Material Comprising Such Particles
    Publication number: 20080102339
    Abstract: The invention relates to a process for preparing proton-conducting clay particles, successively comprising the following steps: a) a step of activating a clay powder, comprising a step in which the said powder is subjected to a gas plasma; b) a grafting step comprising a step of placing the activated powder obtained from step a) in contact with a solution comprising at least one compound comprising at least one group chosen from —PO3H2, —CO2H and —SO3H and salts thereof and comprising at least one group capable of grafting onto the surface of the said powder. Use of these particles for the manufacture of fuel cell membranes.
    Type: Application
    Filed: April 15, 2005
    Publication date: May 1, 2008
    Inventors: Herve Galiano, Magaly Caravanier-Caillon, Philippe Bebin, Patrick Hourquebie, Faiza Bergaya, Fabienne Poncin Epaillard, Fabrice Lafleche
  • Fire Resistant Cable
    Publication number: 20080093107
    Abstract: The present invention relates to a cable comprising at least one conductor element extending inside at least one insulating covering. The invention is remarkable in that at least one insulating covering is made from a fire-resistant composition comprising a polymer and a fibrous phyllosilicate.
    Type: Application
    Filed: May 20, 2005
    Publication date: April 24, 2008
    Inventors: Pascal Amigouet, Jerome Fournier, Faiza Bergaya, Jean Clavier, Anne Le Cam, Philippe Johanis, Philippe Pereira
  • Nanocomposite based on a bridged clay, and a cable comprising said composite
    Patent number: 7091263
    Abstract: The invention provides nanocomposites comprising a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites of the invention have good mechanical properties and good heat resistance. The invention also provides cables comprising such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing said nanocomposite.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: August 15, 2006
    Assignee: Nexans
    Inventors: Lionel Fomperie, Pascal Amigouet, Faïza Bergaya, Tushar Mandalia
  • Nanocomposite based on a bridged clay, and a cable comprising said composite
    Publication number: 20040134679
    Abstract: The invention provides nanocomposites comprising a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites of the invention have good mechanical properties and good heat resistance. The invention also provides cables comprising such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing said nanocomposite.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 15, 2004
    Applicant: NEXANS
    Inventors: Lionel Fomperie, Pascal Amigouet, Faiza Bergaya, Tushar Mandalia
  • Nanocomposite based on a bridged clay, and cable comprising said composite
    Patent number: 6674009
    Abstract: Nanocomposites containing a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites have good mechanical properties and good heat resistance. The invention also provides cables containing such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing the nanocomposite.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: January 6, 2004
    Assignee: Nexans
    Inventors: Lionel Fomperie, Pascal Amigouet, Faïza Bergaya, Tushar Mandalia
  • Nanocomposite based on a bridged clay, and cable comprising said composite
    Publication number: 20020010248
    Abstract: The invention provides nanocomposites comprising a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites of the invention have good mechanical properties and good heat resistance. The invention also provides cables comprising such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing said nanocomposite.
    Type: Application
    Filed: May 30, 2001
    Publication date: January 24, 2002
    Applicant: NEXANS
    Inventors: Lionel Fomperie, Pascal Amigouet, Faiza Bergaya, Tushar Mandalia