Rotomolding compositions with low relative elasticity

A bimodal polyethylene composition having

• 1) A molecular weight distribution, Mw/Mn, of from 2.3 to 5.5;
• 2) A density of from 0.940 to 0.957 g/cc;
• 3) A melt index, I2, as measured by ASTM D1238 at 190° C. using a 2.16 kg load of from 4 to 10 grams per 10 minutes;
• and
• 4) A relative elasticity, G′/G″ when measured at 190° C. and 0.05 rad/second of less than 0.03 rad/sec,
• wherein the bimodal polyethylene composition comprises:
• A. from 10 to 70 weight % of a first ethylene copolymer having:
• A.i. a melt index, I2, as measured by ASTM D1238 at 190° C. using a 2.16 kg load of from 0.4 to 5 grams per 10 minutes;
• A.ii. a molecular weight distribution, Mw/Mn, of from 1.8 to 3.0;
• and
• A.iii. a density of from 0.920 to 0.950 g/cc;
• B. from 90 to 30 weight % of a second ethylene copolymer having:
• B.i. a melt index, I2, as measured by ASTM D1238 at 190° C. using a 2.16 kg load of from 4 to 1500 grams per 10 minutes;
• B.ii. a molecular weight distribution, Mw/Mn, of from 2.3 to 6.0;
• and
• B.iii. a density that is greater than the density of the first ethylene copolymer but less than 0.967 g/cc;
• with the proviso that the density of the first ethylene copolymer is lower than the density of the second ethylene copolymer by an amount of from 0.010 to 0.035 g/cc.