Patent ID: 6887398

Claim:
A composition comprising: (A) one or more aluminium compounds with three ligands per aluminium atom of the following kind: wherein: R is a C 1 - to C 12 -hydrocarbon residue, which may comprise 1 to 4 ether linkages and/or one hydroxy group, and Râ€² and Râ€³, independent of one another, are selected from the group consisting of H, one C 1 - to C 4 -hydrocarbon residue and mixtures thereof, and (B) at least one glycol ether compound of the following structure: Râ€²â€³â€”Oâ€”(Xâ€”O) n â€”H wherein: Râ€²â€³ is a C 1 - to C 18 -hydrocarbon residue, n is an integer of 1 to 10, and X is a saturated substituted or unsubstituted C 1 - to C 6 -hydrocarbon, which may be linked at any carbon atom and may be different for each n, and the glycol ether compound (B) is contained in the composition in at least 5% by weight, relative to the sum of the components (A) and (B) in the composition.