Patent ID: 7166682
Filing Date: 2007-01-23
Classification: C08F,Y10S

Abstract:
1. A process for the preparation of an unsupported olefin polymerisation catalyst comprising: a) reacting an aluminoxane and a Lewis base in an optionally halogenated hydrocarbon solvent to form a particulate suspension; b) reacting said suspension with a metallocene complex in an optionally halogenated hydrocarbon solvent; and c) isolating the unsupported olefin polymerisation catalyst; wherein said Lewis base comprises an aliphatic or aromatic amine, an ether, phenol, benzyl alcohol, ethylene glycol, glycerol, bisphenol, triethanolamine, butanediol, 4,4′-isopropylidenediphenol, 3-hydroxypropylene oxide, or a mixture thereof.