LINEAR HIGH-DENSITY POLYETHYLENE WITH HIGH TOUGHNESS AND HIGH ESCR

摘要

An interpolymer product comprising: a first ethylene interpolymer comprising ethylene and an α-olefin having a weight-average molecular weight (M_w) of greater than 250,000 and a density of less than 0.930 g/cm³, and a second ethylene interpolymer comprising ethylene and an α-olefin wherein the second ethylene interpolymer comprises a M_w of less than 70,000 and a density of greater than 0.930 g/cm³; and wherein the interpolymer product comprises an environmental stress crack resistance (ESCR), measured according to ASTM D1693, Condition B, 10% IGEPAL CO-630, of greater than 90 hours. The interpolymer product may be manufactured in a continuous solution polymerization process utilizing at least two reactors employing at least one single site catalyst formulation and at least one heterogeneous catalyst formulation.