Patents by Inventor Estelle Gautier

Estelle Gautier 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).

  • Catalytic aluminum-free combination for polymerizing alpha-olefins and polymerization method using same
    Patent number: 8106137
    Abstract: The invention concerns a novel catalytic combination for polymerizing alpha-olefins based on a titanium diamidide complex. The invention also concerns a method for polymerizing alpha-olefins using said catalytic combination, in the absence of any aluminum-containing compound. The inventive catalytic combination comprises: component A which is a dichlorinated titanium diamidide complex of general formula (I) wherein R represents a methyl group (component A2) or an isopropyl group (component A1); component B which is a dialkylmagnesium whereof the reaction with component A enables an alkylated component AA to be obtained: and as activator of said component AA, component C which is trispentafluorophenylboran (B(C6F5)3).
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: January 31, 2012
    Assignee: Universite des Sciences et Technologies
    Inventors: André Mortreux, Régis Gauvin, Estelle Gautier
  • Novel Catalytic Aluminum-Free Combination for Polymerizing Alpha-Olefins and Polymerization Method Using Same
    Publication number: 20080269438
    Abstract: The invention concerns a novel catalytic combination for polymerizing alpha-olefins based on a titanium diamidide complex. The invention also concerns a method for polymerizing alpha-olefins using said catalytic combination, in the absence of any aluminum-containing compound. The inventive catalytic combination comprises: component A which is a dichlorinated titanium diamidide complex of general formula (I) wherein R represents a methyl group (component A2) or an isopropyl group (component A1); component B which is a dialkylmagnesium whereof the reaction with component A enables an alkylated component AA to be obtained: and as activator of said component AA, component C which is trispentafluorophenylboran (B(C6F5)3).
    Type: Application
    Filed: June 21, 2006
    Publication date: October 30, 2008
    Inventors: Andre Mortreux, Regis Gauvin, Estelle Gautier