Titanium catalysts, preparation and use in co- and ter-polymerization of alpha-olefins

US6900155B2 · kind B2 · utility

Assignee

• Polimeri Europa S.p.A. · IT

Inventors

• Francesco Masi · San Donato Milanese, IT
• Roberto Santi · Novara, IT
• Stefano Ramello · Novara, IT
• Anna Sommazzi · Novara, IT
• Roberto Provera · Vercelli, IT
• Antonio Alfonso Proto · Novara, IT

Key dates

• Filing date: Mar 20, 2002
• Grant date: May 31, 2005
• Expiry date: Mar 20, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/003
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Titanium complex having general formula (I) (RCOO)nTiXp wherein R is a monofunctional hydrocarbyl radical having from 1 to 20 carbon atoms and a number of halogen atoms, selected from fluorine, chlorine and bromine, preferably chlorine, ranging from 1 to 6; X is chlorine, bromine or a beta-dicarbonyl group such as acetylacetone (AcAc), formylacetone, benzoylacetone, dibenzoylmethane; p+n=2, 3, 4, preferably p+n=3; n is greater than or equal to 1. The preparation of the above complex and its use in the co- and ter-polymerization of α-olefins, are also described.