| 摘要 |
Catalyst with high activity and productivity in the polmn. of ethylene were prepd. by treatment with organoaluminium compds. (I; AlR5X3-m, R5 = C1-20 hydrocarbon, X = H, halogen, alkoxy, aryloxy, siloxy, m = 1-3) and hydrocarbon-insol.reaction products of Mg-Zn complexes (II; ZnRMgβ(OR1)p(OR2)qR3rR4s,R1,R2 = C1-10 hydrocarbon,R3,R4 = C1-12 hydrocarbon,α,β>1,β/α=1-10,p,q,r,s>=0,p,q,r,s=2(α+β), p+q/α+β<0.80).
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