Patents by Inventor Abdelhafed Taleb

Abdelhafed Taleb 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: 10668501
    Abstract: The present invention relates to a process for texturing surfaces providing the latter with superhydrophobic, superoleophobic, superhydrophilic or even superoleophilic properties. This process comprises i) a step of texturing the surface (via the deposition of nanoparticles of different sizes); ii) a step of curing the surface thus textured (with a curing agent); and, optionally, iii) a step of modifying the properties of the surface with perfluorinated (and therefore hydrophobic) molecules. This process is suitable, inter alia, for treating transparent and/or heat-sensitive materials and surfaces. Specifically, none of the steps of the process use a temperature higher than 100° C. Thus, the process of the invention is particularly suitable for treating transparent surfaces composed of non-mineral materials, such as polycarbonate for example, as it will affect neither their transparency nor their optical properties.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 2, 2020
    Assignees: Centre National de la Recherche Scientifique (CNRS), Surfactis Technologies
    Inventors: David Portet, Nicolas Lefevre, Stéphane Bejanin, Abdelhafed Taleb, Dorra Ben Jazia Dallel, Olivier Favrat
  • Publication number: 20170120294
    Abstract: The present invention relates to a process for texturing surfaces providing the latter with superhydrophobic, superoleophobic, superhydrophilic or even superoleophilic properties. This process comprises i) a step of texturing the surface (via the deposition of nanoparticles of different sizes); ii) a step of curing the surface thus textured (with a curing agent); and, optionally, a step of modifying the properties of the surface with perfluorinated (and therefore hydrophobic) molecules. This process is suitable, inter alia, for treating transparent and/or heat-sensitive materials and surfaces. Specifically, none of the steps of the process use a temperature higher than 100° C. Thus, the process of the invention is particularly suitable for treating transparent surfaces composed of non-mineral materials, such as polycarbonate for example, as it wilt affect neither their transparency nor their optical properties.
    Type: Application
    Filed: May 20, 2015
    Publication date: May 4, 2017
    Applicants: Centre National de la Recherche Scientifique (CNRS), Surfactis Technologies
    Inventors: David Portet, Nicolas Lefevre, Stéphane Bejanin, Abdelhafed Taleb, Dorra Ben Jazia Dallel, Olivier Favrat
  • Publication number: 20160312364
    Abstract: A method of treating a metal substrate with an anti-corrosion coating comprising at least the following steps: preparing a solution comprising particles of a precursor of the oxide, dipping at least one surface of the metal substrate into the prepared solution and then removing it from the solution, heat treating the surface of the metal substrate in order to generate oxide nanocrystals from the particles of the precursor and form the anti-corrosion coating, and forming a natural oxide layer between the metal substrate and the anti-corrosion coating, the natural oxide layer being enriched with elements from the oxide nanocrystals of the anti-corrosion coating.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 27, 2016
    Applicant: ELECTRICITE DE FRANCE
    Inventors: Xavier Crozes, Didier Noel, Julie Monget, Abdelhafed Taleb, Michel Cassir