{HEAD ~ A first object} of the present invention is to provide {TAIL ~ a process} for polymerization of ethylene, whereby a high catalytic activity is obtainable even at a high polymerization temperature of 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 
{ HEAD ~ A first object } of the present invention is to provide { TAIL ~ a process } for polymerization of ethylene , whereby a high catalytic activity is obtainable even at a high polymerization temperature of 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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