Patents by Inventor Margaret Leclerc

Margaret Leclerc 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).

  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Publication number: 20050080281
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 14, 2005
    Inventors: Thomas Boussie, Oliver Brummer, Gary Diamond, Christopher Goh, Anne LaPointe, Margaret Leclerc, James Shoemaker