Patents by Inventor Nadia Guerrouani

Nadia Guerrouani 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 copolymers by anionic solvent-free polymerization
    Patent number: 7884157
    Abstract: The invention concerns a process for preparing a block or comb copolymer comprising at least one hydrophilic portion and at least two hydrophobic portions, by anionic solvent-free polymerization of a prepolymer selected from a polyethylene glycol and a polyvinyl alcohol, and of a lactone or dilactone monomer. The process is carried out in the presence of an alkaline-earth metal hydride, in an inert atmosphere, and the polymerization step is not carried out under vacuum. The invention also concerns copolymers obtained by this process.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: February 8, 2011
    Assignees: Centre National de la Recherche Scientifique, Universite Montpellier 2 Sciences et Techniques
    Inventors: André Mas, Nadia Guerrouani, François Schue
  • Process for Preparing Copolymers by Anionic Solvent-Free Polymerization
    Publication number: 20080312376
    Abstract: The invention concerns a process for preparing a block or comb copolymer comprising at least one hydrophilic portion and at least two hydrophobic portions, by anionic solvent-free polymerization of a prepolymer selected from a polyethylene glycol and a polyvinyl alcohol, and of a lactone or dilactone monomer. The process is carried out in the presence of an alkaline-earth metal hydride, in an inert atmosphere, and the polymerization step is not carried out under vacuum. The invention also concerns copolymers obtained by this process.
    Type: Application
    Filed: November 28, 2006
    Publication date: December 18, 2008
    Applicants: CENTRE NATIONAL DE LA RECHERCH SCIENTIFIQUE, UNIV. DE MONTPELLIER II SCIENCES ET TECH. DU LANGUEDOC
    Inventors: Andre Mas, Nadia Guerrouani, Francois Schue