| 摘要 |
A metal composition suitable as an initiator for olefin polymerisation which is the product of reacting a particulate support material, preferably having a reactive surface which is free from water, with firstly an organometallic compound of the general formula R1_mM and secondly a transition metal organometallic compound of the general formula R2_4TXp wherein M is a metal of Groups IA, IIA or IIB of the Periodic Table, T is a transition metal of Group IVA of the Periodic Table, R<1> and R<2> are hydrocarbyl or substituted hydrocarbyl groups, X, when present, is a singly charged anionic ligand or a monodentate ligand, m is 1 or 2 depending on whether the metal is in Group IA, or in Group IIA or IIB, and p is 0, 1 or 2. |
