Patent ID: 6495640
Filing Date: 2002-12-17
Classification: C08F,Y10S

Abstract:
Process for polymerizing alpha-olefins, in which at least one alpha-olefin is contacted, under polymerization conditions, with a catalytic system comprising(a) a solid catalyst comprising (i) a compound of a transition metal selected from groups 4 to 6 of the Periodic Table, containing at least one cyclopentadiene ligand which may be substituted, (ii) an activator selected from the group consisting of aluminoxanes and ionizing agents, and (iii) a porous polymeric support with an intraparticulate pore volume of at least 0.2 cm3/g, wherein said intraparticulate pore volume is a measurement based on pores with a radius of from 1000 to 75,000 Ã¥, and (b) at least one organoaluminum compound corresponding to the general formula R3âˆ’nAl(Yâ€²)n in which 0.9