Patents by Inventor Sylvie Ghiringhelli

Sylvie Ghiringhelli 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).

  • Halogenated polymer stabilizing ingredient containing a beta-dicarbonyl compound
    Patent number: 8519039
    Abstract: A subject matter of the present invention is a novel stabilizing ingredient for halogenated polymers comprising at least one ?-carbonyl compound, an additive composition for halogenated polymers comprising the ingredient and a stabilized composition based on a halogenated polymer. The invention provides improvements as regards stabilization of halogenated polymers. The invention can in particular be applied to the stabilization of poly(vinyl chloride).
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 27, 2013
    Assignee: Rhodia Chimie
    Inventors: Valerie Billebaud, Valerie Legros, Sylvie Ghiringhelli, Jean-Emile Zanetto