"An Ethylene Polymer And Blow Molded Product Made From Said Polymer"

Abstract: An ethylene polymer containing 0.02 to 0.50 mol% of a constitutional unit derived from an α-olefin having 6 to 10 carbon atoms, the polymer having a density of 945 to 975 kg/m3 and satisfying the following requirements [1], [2] and [2b]-[4b] simultaneously [1] in CFC, all the components having a molecular weight of 100,000 or more are eluted at a temperature of 85°C or higher; [2] the components eluted at a temperature of 80°C or lower account for up to 5% of all the components elated in CFC; [2b] the intrinsic viscosity (n) as measured in decalin at 135°C is in the range of 1.6 to 2.8 (dl/g); [3b] the flexural modulus, MPa, as measured at 23°C according to ASTM-D-790 satisfies 600 < M <1500, and the environmental stress cracking resistance (ESCR), T hr, as measured at 50°C according to ASTM-D-1693 and M satisfy the following equation (Eq-1): T >-0.8XM+1210 (Eq-1); and [4b] tan 8 (loss modulus G"/storage modulus G") as measured at 190°C and at an angular frequency of 100 rad/sec using a dynamic viscoelasticity measuring apparatus, is in the range of 0.6 to 0.9 and a blow molded product made from the said polymer.

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