Patents by Inventor Daniele Girelli

Daniele Girelli 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).

  • Stabilizing mixtures for organic polymers
    Publication number: 20030189192
    Abstract: Stablizing mixtures for organic polymers comprising: (a) at least one compound belonging to the group of 3-pyrazolidinones; (b) at least one compound belonging to the group of organic phosphites or phosphonites; (c) at least one compound belonging to the group of sterically hindered phenols; and, optionally, (d) at least one compound belonging to the group of sterically hindered amines. The above mixtures can be used as stabilizers of organic polymers to degradation caused by oxygen, heat and/or light.
    Type: Application
    Filed: February 4, 2003
    Publication date: October 9, 2003
    Inventors: Daniele Girelli, Fabjo Broussard, Vincenzo Malatesta
  • Stabilizing mixtures for organic polymers comprising a pyrazolone, an organic phosphite or phosphonite and a hindered phenol
    Patent number: 6605658
    Abstract: Stabilizing mixtures for organic polymers comprising: a) at least one compound belonging to the group of pyrazolones; b) at least one compound belonging to the group of organic phosphites or phosphonites; c) at least one compound belonging to the group of sterically hindered phenols; and d) at least one compound belonging to the group of sterically hindered amines. The above mixtures are useful in the stabilization to degradation caused by oxygen, heat and/or light, of organic polymers.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 12, 2003
    Assignee: Great Lakes Chemical (Europe) GmbH
    Inventors: Fabio Broussard, Daniele Girelli, Maria Lucia Wis, Carlo Neri, Vincenzo Malatesta