Preparation of catalyst solid for the polymerization of olefin, e.g. ethylene, involves combining finely divided support with aluminoxane, and adding reaction product of metallocene compound with organometallic compound to modified support

摘要

A catalyst solid for olefin polymerization is prepared by combining a finely divided support with an aluminoxane, and adding the reaction product of a metallocene compound with organometallic compound to a modified support. Preparation of a catalyst solid for olefin polymerization, comprises combining a finely divided support with an aluminoxane, and adding the reaction product of a metallocene compound of the (I) with organometallic compound of the (VIII) to a modified support. M1(R7)r(R8)s(R9)t (VIII) M = Zr, Hf or Ti; X = H or halo or a group -R, -OR, -OSO2CF3, -OCOR, -SR, -NR2 or -PR2; R = 1-20C alkyl, 3-20C cycloalkyl which may bear 1-10C alkyl radical(s), 6-20C aryl, 7-20C alkylaryl or 7-20C arylalkyl or may contain heteroatom(s) from groups 13-17 of the elements or unsaturated bond(s), with the two radicals X also being able to be joined to one another; L = divalent bridging group from 1-20C alkylidene, 3-20C cycloalkylidene, 6-20C arylidene, 7-20C alkylarylidene or 7-20C arylalkylidene radicals which may contain heteroatoms from groups 13-17 of the elements or silylidene group having up to 5 Si; R1, R2 = H, 1-20C alkyl, 3-20C cycloalkyl which may bear 1-10C alkyl radicals, 6-20C aryl, 7-40C alkylaryl or 7-40C arylalkyl or may contain heteroatom(s) from groups 13 -17 of the elements or unsaturated bond(s); T, T' = divalent groups of the formulae (II)-(VII); R5, R6 = H, halo, 1-20C alkyl, 3-20C cycloalkyl which may bear 1-10C alkyl radicals, 6-40C aryl, 7-40C arylalkyl, or heteroatom(s) from groups 13-17 of the elements or unsaturated bond(s) or two radicals R5 or R5 and R6 are joined to one another to form an (un)saturated 3-20C ring; M1 = alkali metal, alkaline earth metal or metal of group 13 of the elements; R7 = H, 1-10C alkyl, 3-10C cycloalkyl, 6-15C aryl, alkylaryl or arylalkyl each having 1-10C in the alkyl part and 6-20C in the aryl part; R8, R9 = H, halo, 1-10C alkyl, 3-10C cycloalkyl, 6-15C aryl, alkylaryl, arylalkyl, or alkoxy each having 1-10C in the alkyl part and 6-20C in the aryl part; r = 1-3; s, t = 0-2. The sum r + s + t corresponds to the valence of M3. The atoms denoted by the symbols asterisk and asterisk asterisk are in each case joined to the atoms of the compound (I) which are denoted by the same symbol.