Catalyst component for the polymerisation of olefins and process for preparing olefin polymers using same
申请人:NIPPON OIL COMPANY, LIMITED
公开号:EP0587440A2
公开(公告)日:1994-03-16
A catalyst component for use in the polymerization or copolymerization of olefin(s) is obtained by contacting the following components (1) to (4) with one another:
(1) a compound of the general formula Me¹R¹p(OR²)qX¹4-p-q where R¹ is a hydrocarbon radical having 1 to 24 carbon atoms, X¹ is a halogen atom, Me¹ is Zr, Ti or Hf, and n is 0 ≦ n ≦ 4;
(2) a compound of the general formula Me²R³m(OR⁴)nX²z-m-n where R² is a hydrocarbon radical having 1 to 24 carbon atoms, X² is a halogen atom, Me² is an element from Groups I to III in the Periodic Table, z is the valence of Me² and m is 0 ≦ m ≦ z;
(3) an organocyclic compound having two or more conjugated double bonds; and
(4) a modified organoaluminum compound containing Al-O-Al bond and with at least one branched-chain alkyl group being attached to aluminum atom.
将下列组分(1)至(4)相互接触,可得到用于烯烃聚合或共聚的催化剂组分:
(1) 通式为 Me¹R¹p(OR²)qX¹4-p-q的化合物 其中,R¹为具有 1 至 24 个碳原子的烃基;X¹为卤素原子;Me¹为 Zr、Ti 或 Hf;n 为 0 ≦ n ≦ 4;
(2) 通式为 Me²R³m(OR⁴)nX²z-m-n的化合物,其中 R²为具有 1 至 24 个碳原子的烃基;X²为卤素原子;Me²为元素周期表中第 I 至 III 族的元素;z 为 Me²的化合价;m 为 0 ≦ m ≦ z;
(3) 具有兩個或以上共轭双键的有机环化合物;及
(4) 含 Al-O-Al 键且至少有一个支链烷基与铝原子相连的改性有机铝化合物。