Supported catalysts for the polymerization of olefins

Process for the preparation of 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 aluminium containing at least one heteroatom selected from the group consisting of oxygen, nitrogen and sulfur;
• and
• (C) at least one compound of a transition metal selected from those of groups lVb, Vb or VIb of the Periodic Table of the Elements, containing at least one cyclopentadienyl ligand;
• comprising the steps of:
• contacting in an inert solvent said organo-metallic compound of aluminium (B) and said compound of a transition metal;
• thereafter contacting the thus obtained product with said porous organic support (A);
• and
• recovering the supported catalyst by a removing the solvent.

Process for the preparation of a supported catalyst for the polymerization of olefins comprising:

• (A) a porous organic support functionalized with between 1 and 6 meq/g of groups having active hydrogen atoms;
• (B) at least one organo-metallic compound of aluminium containing at least one heteroatom selected from the group consisting of oxygen, nitrogen and sulfur;
• and
• (C) at least one compound of a transition metal selected from those groups of IVb, Vb or VIb of the Periodic Table of the Elements, containing at least one cyclopentadienyl ligand;
• comprising the steps of:
• contacting in an inert solvent said 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
• recovering the supported catalyst by removing the solvent.