| 摘要 |
1. Method for polymerization or copolymerization of olefins in the presence of a catalyst containing a compound of a transition metal from group IV B of the periodic table and alumoxane, characterized in that the catalyst used is made from A) a compound of a transition metal with general formula 1, where R<1> denotes a cyclopentadienyl group, possibly substituted with C1-C4-alkyl, or an indenyl group, R<2>, R<3> and R<4> independently denote a cyclopentadienyl group, possibly substituted with C1-C4-alkyl, an indenyl group or a halogen atom, where if two of the symbols R<1>-R<4> denote indenyl groups they may be connected by C1-C4-alkylene, and at least one of the symbols R<2>, R<3> and R<4> denotes a halogen atom, M denotes a zirconium or hafnium atom, k is 1 or 2, l, m and n are 0, 1 or 2, and k+l+m+n is equal to 4; B) alumoxane; C) water; and D) trialkylaluminium, where the molar ratio of aluminium atoms from alumoxane to water is from 0.5 to 50, the number of aluminium atoms from trialkylaluminium is 30-99% of the total number of aluminium atoms from alumoxane and trialkylaluminium, and the ratio of aluminium atoms from alumoxane and trialkylaluminium to transition metal atoms is in the range 20 to 1x10<4>.
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