Patents by Inventor Stéphanie Gazeau-Bureau

Stéphanie Gazeau-Bureau 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 the preparation of polylactones and polylactams
    Patent number: 8883957
    Abstract: The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator comprising at least one hydroxyl or thiol functional group in a nonchlorinated solvent in the presence of a sulfonic acid of formula R—SO3H. It also relates to the polymer composition thus obtained and to its uses, in particular as antistatic additive.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: November 11, 2014
    Assignees: Arkema France, Centre National de la Recherche Scientifique-CNRS
    Inventors: Stéphanie Magnet, Christophe Navarro, Stéphanie Gazeau-Bureau, Bianca Martin-Vaca, Didier Bourissou
  • PROCESS FOR THE PREPARATION OF POLYLACTONES AND POLYLACTAMS
    Publication number: 20100121021
    Abstract: The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator comprising at least one hydroxyl or thiol functional group in a nonchlorinated solvent in the presence of a sulfonic acid of formula R—SO3H. It also relates to the polymer composition thus obtained and to its uses, in particular as antistatic additive.
    Type: Application
    Filed: February 15, 2008
    Publication date: May 13, 2010
    Applicant: Arkema France
    Inventors: Stéphanie Magnet, Christophe Navarro, Stéphanie Gazeau-Bureau, Blanca Martin-Vaca, Didier Bourissou
  • METHOD FOR PRODUCING A COPOLYMER OF AT LEAST ONE CYCLIC MONOMER
    Publication number: 20100121024
    Abstract: The present invention relates to a process for the preparation of a copolymer of at least one cyclic monomer chosen from a lactone, a lactam, a lactide and a glycolide, comprising the stage consisting in reacting said cyclic monomer with a polymeric initiator in the presence of a compound carrying a sulfonic acid functional group. It also relates to the polymer composition obtained according to this process and to its uses, in particular as antistatic additive.
    Type: Application
    Filed: February 15, 2008
    Publication date: May 13, 2010
    Applicants: Arkema France, Centre National De La Recherche Scientifique - CNRS
    Inventors: Stèphanie Magnet, Christophe Navarro, Stèphanie Gazeau-Bureau, Blanca Martin-Vaca, Didier Bourissou