Patents by Inventor Karima OUHENIA

Karima OUHENIA 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).

  • Publication number: 20210113984
    Abstract: The present invention relates to a method for preparing solid microcapsules comprising the following steps: a) preparation of a composition C1, which is either a composition C1a, comprising a single hydrophobic solid particle, or a composition C1b comprising a plurality of hydrophobic solid particles dispersed in a hydrophilic phase, b) addition under stirring of the composition C1 in a polymeric composition C2 at a temperature Tb, whereby an emulsion (E1) is obtained; c) addition, under stirring, of the emulsion (E1) in a composition C3 at a temperature Tc, whereby a double emulsion (E2) is obtained; d) applying a shear to the emulsion (E2), whereby a double emulsion (E3) is obtained; and e) the polymerization of the composition C2, whereby solid microcapsules dispersed in the composition C3 are obtained.
    Type: Application
    Filed: March 21, 2018
    Publication date: April 22, 2021
    Applicant: CALYXIA
    Inventors: Damien DEMOULIN, Ludivine MOUSNIER, Karima OUHENIA, Jamie WALTERS
  • Publication number: 20200290006
    Abstract: The present invention relates to a method for preparing solid microcapsules, comprising the following steps, the addition, with stirring, of a composition C1, comprising at least one active ingredient, in a polymeric composition C2, the compositions C1 and C2 not being miscible with each other, wherein an emulsion (E1) is obtained comprising drops of composition C1 dispersed in composition C2. The addition, with stirring, of the emulsion (E1) in a composition C3, the compositions C2 and C3 not being miscible with each other, wherein a double emulsion (E2) is obtained comprising drops dispersed in composition C3. Applying shear to the emulsion (E2), wherein a double emulsion (E3) is obtained comprising drops of controlled size dispersed in composition C3; and polymerization of composition C2, wherein solid microcapsules are obtained dispersed in composition C3.
    Type: Application
    Filed: October 16, 2018
    Publication date: September 17, 2020
    Applicant: CALYXIA
    Inventors: Damien DEMOULIN, Jamie WALTERS, Karima OUHENIA