A first object of the present invention is to provide a process for polymerization of ethylene, whereby a high catalytic activity is obtainable even at {HEAD ~ a high polymerization temperature} of {TAIL ~ at least 170° C.} and the catalyst residue in the polymer thereby obtained is minimized so that the step of removing the catalyst residue may be omitted 
A first object of the present invention is to provide a process for polymerization of ethylene , whereby a high catalytic activity is obtainable even at { HEAD ~ a high polymerization temperature } of { TAIL ~ at least 170 ° C. } and the catalyst residue in the polymer thereby obtained is minimized so that the step of removing the catalyst residue may be omitted
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