Patents by Inventor Stéphane Paye

Stéphane Paye 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 polymerizing alpha-olefins
    Patent number: 6495640
    Abstract: Process for polymerizing alpha-olefins, in which at least one alpha-olefin is placed in contact, under polymerizing conditions, with a catalytic system comprising (a) a solid catalyst comprising (i) a compound of a transition metal from groups 4 to 6 of the Periodic Table, containing at least one cyclopentadiene ligand which may be substituted, (ii) an activator chosen from aluminoxanes and ionizing agents, and (iii) a porous polymeric support, and (b) at least one organoaluminium compound corresponding to the general formula R3−nAl(Y′)n in which 0.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: December 17, 2002
    Assignee: Solvay Polyolefins Europe-Belgium(Societe Anonyme)
    Inventors: Fabian Siberdt, Philippe Francois, Stéphane Paye