Catalyst components for the polymerization of olefins

US9593171B2 · kind B2 · utility

Assignee

• Basell Poliolefine Italia S.r.l. · IT

Inventors

• Simona Guidotti · Ferrara, IT
• Giampiero Morini · Ferrara, IT
• Simona Esposito · Ferrara, IT
• Alessandro Mignogna · Ferrara, IT
• Joachim T.M. Pater · Cocomaro di Focomorto, IT
• Fabrizio Piemontesi · Ferrara, IT
• Diego Brita · Ferrara, IT

Key dates

• Filing date: Mar 29, 2012
• Grant date: Mar 14, 2017
• Expiry date: Dec 22, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A porous solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other being selected from succinates, characterized by the fact that the molar ratio ID/Ti is from 0.30 to 0.90, where ID is the total molar amount of succinate and 1,3-diether, the molar ratio of the 1,3-diether donor to the succinate donor is higher than, or equal to, 0.60.