Patents by Inventor Josiane Roussos

Josiane Roussos 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).

  • Water soluble gum/polymer compositions and hydrosols prepared therefrom
    Patent number: 4548734
    Abstract: Compositions of matter, desirably in powder form, adapted for ready dispersion/dissolution in an aqueous medium, and which rapidly provide maximum viscosity values therefor, are comprised of an intimate admixture of a water soluble gum or polymer, a dispersion/dissolution enhancing amount of a water donor material, and, advantageously, an anionic and/or nonionic surfactant.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: October 22, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Jean-Bernard Chaux, Pierre Gagne, Michel Garcia, Dominique Lespinasse, Josiane Roussos
  • Water soluble biogum compositions and hydrosols prepared therefrom
    Patent number: 4519844
    Abstract: Compositions of matter, desirably in powder form, adapted for ready dispersion/dissolution in an aqueous medium, and which rapidly provide maximum viscosity values therefor, are comprised of an intimate admixture of a water soluble biogum heteropolysaccharide, a dispersion/dissolution enhancing amount of a water donor material, and, advantageously, an anionic and/or nonionic surfactant.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: May 28, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Jean-Bernard Chaux, Pierre Gagne, Michel Garcia, Dominique Lespinasse, Josiane Roussos