| 摘要 |
<p>Polymerization of ethylene or copolymerization of ethylene with other alpha -olefin is carried out in the presence of a specific catalyst system. The catalyst system is obtained by preparing a reaction product (A) of an organic aluminum compound (I) represented by the formula AlRn1X3-n where R1 is hydrogen or an alkyl group having from 1 to 10 carbon atoms, X is Cl or Br and n is a number satisfying 0<n<3, with a mixture of a straight chain aliphatic alcohol and a branched chain aliphatic alcohol or a cyclic alcohol, separately preparing a reaction product (B) of an organic magnesium compound with a hydropolysiloxane or a silicone compound in which organic groups and hydroxyl groups are bonded to silicon atoms, reacting the reaction product (A) with the reaction product (B) to produce a reaction product (C), reacting the reaction product (C) with a halogen-containing titanium or vanadium compound to obtain a solid product (D) and mixing the solid product (D) with an organic aluminum compound (II).</p> |
