ETHYLENE POLYMER, THERMOPLASTIC RESIN COMPOSITION COMPRISING THE POLYMER, AND MOLDED ARTICLE

摘要

Disclosed is an ethylene polymer which is a copolymer of ethylene and an alpha-olefin having 4 to 10 carbon atoms and satisfies the following requirements [1] to [4]: [1] the MFR value falls within the range from 0.10 to 100 g/10 min.; [2] the density (D) falls within the range from 860 to 930 kg/m3; [3] the ratio (Mw/Mn) of the weight average molecular weight to the number average molecular weight falls within the range from 1.50 to 3.00 inclusive; and [4] both the ratio (H/W) of the height (H) of a peak having the highest peak intensity to the width (W) of the peak at a height which is half of the height (H) in an elution curve given by temperature rising elution fraction and the density (D) satisfy a specified relationship in accordance with the MFR value of the requirement [1]. Also disclosed is a molded article which comprises the ethylene polymer, is excellent in blocking resistance, a low-temperature heatseal property and a mechanical strength, and can be used suitably for a film or the like.