| 摘要 |
A process for preparing an ethylene polymer composition comprises a step (I) to prepare an ethylene (co)polymer (i) having [eta] of at least 1.5 times the intrinsic viscosity of a (co)polymer (ii) and a step (II) to prepare an ethylene (co)polymer (ii) having [eta] of 0.3 to 3 dl/g, said steps (I) and (II) using a catalyst containing a component obtained by contacting a liquid Mg compound with a liquid Ti compound in the presence of an organosilicon compound, wherein the step (II) is carried out in the presence of the polymer (i) or the step (I) is carried out in the presence of the polymer (ii), to prepare an ethylene polymer composition having [eta] of 1 to 6 dl/g and a density of not less than 0.94 g/cm<3>. According to the invention, an ethylene polymer composition (particles) having excellent particle morphology, scarcely suffering sintering and having excellent moldability, a process for efficiently preparing the particles of ethylene polymer composition, and a film having small gauge-variation and excellent tear strength can be provided.
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