Patents by Inventor Caroline Creuzet

Caroline Creuzet 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 thermosensitive (poly(ethylene oxide) poly(propylene oxide)) derivatives that can be used to functionalize chitosan
    Patent number: 8377418
    Abstract: The invention relates to a thermosensitive (poly(ethylene oxide) poly(propylene oxide))-acetal derivative, which can be used to functionalize chitosan, and to the process for the preparation thereof. The invention therefore also relates to a process for functionalizing chitosan by grafting this thermosensitive copolymer and optionally another thermosensitive polymer, poly(ethylene oxide). A subject of the invention is also a chitosan-(poly(ethylene oxide) poly(propylene oxide))-poly(ethylene oxide) derivative which has the advantage of being water-soluble at physiological pH. The invention therefore also relates to the aqueous compositions comprising this derivative and to the use of this composition for the manufacture of gel by heating.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: February 19, 2013
    Assignees: Centre National de la Recherche Scientifique (CNRS), Universite Joseph Fourier-Grenoble 1
    Inventors: Rachel Auzely-Velty, Caroline Creuzet
  • PROCESS FOR PREPARING THERMOSENSITIVE (POLY(ETHYLENE OXIDE) POLY(PROPYLENE OXIDE)) DERIVATES THAT CAN BE USED TO FUNCTIONALIZE CHITOSAN
    Publication number: 20100204177
    Abstract: The invention relates to a thermosensitive (poly(ethylene oxide) poly(propylene oxide))-acetal derivative, which can be used to functionalize chitosan, and to the process for the preparation thereof. The invention therefore also relates to a process for functionalizing chitosan by grafting this thermosensitive copolymer and optionally another thermosensitive polymer, poly(ethylene oxide). A subject of the invention is also a chitosan-(poly(ethylene oxide) poly(propylene oxide))-poly(ethylene oxide) derivative which has the advantage of being water-soluble at physiological pH. The invention therefore also relates to the aqueous compositions comprising this derivative and to the use of this composition for the manufacture of gel by heating.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 12, 2010
    Inventors: Rachel Auzely-Velty, Caroline Creuzet