Patents by Inventor Dorra Ben Jazia Dallel

Dorra Ben Jazia Dallel 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