Patent ID: 8242220

Claim:
A copolymer of ethylene and an alpha-olefin, said copolymer having (a) a density in the range 0.900-0.940 g/cm 3 , (b) a melt index MI 2 (2.16 kg, 190° C.) in the range of 0.01-50 g/10 min, (c) a molecular weight distribution (Mw/Mn) in the range 3.5 to 4.5, (d) a melt elastic modulus G′(G″=500 Pa) in the range 40 to 150 Pa, and (e) a melt index MI 2 (2.16 kg, 190° C.) Dow Rheology Index (DRI) and melt elastic modulus G′(G″=500 Pa) satisfying the equations of [ DRI/MI 2 ]>0 and [ DRI/MI 2 ]<0.0225 G′− 0.745.