Patent ID: 6908968

Claim:
A polymer composition comprising at least two ethylene polymer components, the first polymer component is a homogeneously branched linear ethylene polymer, wherein the composition is characterized as having: a) a M w /M n of less than or equal to 3.3, as determined by gel permeation chromatography (GPC), b) an I 10 /I 2 in the range of from greater than 6.6 to about 8.2, as determined in accordance ASTM D-1238, Condition 190° C./2.16 kg and Condition 190° C./10 kg, c) a composition density less than 0.945 gram/cubic centimeter, as determined according to ASTM-792, d) the first polymer component having a first viscosity average molecular weight, M v1 , and the second polymer component having a second viscosity average molecular, M v2 , wherein M v1 /M v2 is less than or equal to 1, as determined using ATREF-DV, and e) a first ATREF peak temperature, T peak1 , and a second ATREF peak temperature, T peak2 , corresponding to the at least two components and as determined using analytical temperature rising elution fraction (ATREF), wherein the temperature differential between T peak2 and T peak1 , ΔT, decreases with increased composition density such that ΔT is less than 23° C. at composition densities of greater than or equal to 0.926 g/cm 3 and is greater than 43° C. at composition densities less than or equal to 0.92 g/cm 3 .