Patent ID: 6423660
Filing Date: 2002-07-23
Classification: C08F,Y10S

Abstract:
A supported catalyst for the polymerization of olefins, comprising:(A) a porous organic support functionalized with between 3.3 and 6 meq/g of groups having active hydrogen atoms; (B) at least one organo-metallic compound of aluminum containing at least one heteroatom selected from oxygen, nitrogen and sulphur; and (C) at least one compound of a transition metal selected from those of groups IVb, Vb or VIb of the Periodic Table of the Elements, containing at least one cyclopentadienyl ligand: said supported catalyst being obtained by a process comprising the steps of:contacting in an inert solvent said porous organic support (A) and said organo-metallic compound of aluminum (B); thereafter contacting the thus obtained product with said compound of a transition metal (C); and finally recovering the supported catalyst by removing the solvent; or by a process comprising the steps of:contacting in an inert solvent said organo-metallic compound of aluminum (B) and said compound of a transition metal; thereafter contacting the thus obtained product with said porous organic support (A); and finally recovering the supported catalyst by removing the solvent; or by a process comprising the steps of:contacting in an inert solvent said porous organic support (A) and said organo-metallic compound of aluminium (B); contacting in an inert solvent said organo-metallic compound of aluminium (B) and said compound of a transition metal (C); thereafter contacting the product obtained by contacting (A) and (B) with the product obtained by contacting (B) and (C); and finally recovering the supported catalyst by removing the solvent.