| abstract |
The present invention pertains to an ethylene interpolymer composition characterized as having a narrow molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having at least two polymer components, the first component having an ATREF peak temperature, T peak1 and a viscosity average molecular weight, M v1 , and the second component having an ATREF peak temperature, T peak2 , and a viscosity average molecular, M v2 , wherein the temperature differential between T peak2 and T peak1 decreases with iincreased composition density and M v1 /M v2 is less than or equal to 1.2. The novel composition is further characterized as having a M w /M n of less than or equal to 3.3 as determined by gel permeation chromatography, an I 10 /I 2 >6.6, and a composition density less than 0.945 gram/cubic centimeter. The novel composition exhibits high, balanced toughness properties, good processibility and surprisingly improved optical properties and is particularly well-suited for use in applications such as lamination films trash can liners and heavy duty shipping bags, especially as a blown film. |