A process for the preparation of an ethylene polymer - composition, particles of ethylene polymer - composition and of the particles of the ethylene polymer - composition film obtained

摘要

A method for producing an ethylene polymer composition comprising a step (i) for the production of an ethylene (co) polymer (i) with (eta) of at least 1,5 - times the intrinsic viscosity of a (co) polymer (ii) and a step (ii) for the production of an ethylene (co) polymer (ii) with (eta) of 0,3 to 3 dl / g, wherein the steps (i) and (ii) a catalyst used, which contains a component which through the contact of a liquid mg - connection with a liquid ti - compound in the presence of a repellent organosilicon - connection is obtained, wherein the step (ii) in the presence of the polymer (i) is performed or step (i) in the presence of the polymer (ii) is carried out, in order to achieve an ethylene polymer - composition with (eta) of 1 to 6 dl / g and a density of not less than 0,94 g / cm · 3 · to produce. According to the invention, an ethylene polymer - composition (particles) having an excellent particle morphology, which undergoes hardly sintering and an excellent formability, a method for efficient production of the particles of the ethylene polymer - composition and a film with a low variation in thickness and excellent resistance to tearing be made available.