LOW DENSITY ETHYLENE-BASED POLYMERS WITH BROAD MOLECULAR WEIGHT DISTRIBUTIONS AND LOW EXTRACTABLES

摘要

The present invention relates to an ethylene-based polymer comprising the following properties:
a) a melt index (I2) ‰¥ 2.0 dg/min;
b) a G' versus 12 relationship: G' ‰¥ C + D(I2), where C = 127.5 Pa, and D = -1.25 Pa/(dg/min)
c) a chloroform extractable (Clext) versus G' relationship: Clext. ‰¤ E + FG', where E = 0.20 wt%, and F = 0.060 wt% / Pa; and
d) a "weight fraction (w) of molecular weight greater than 10 6 g/mole, based on the total weight of polymer, and as determined by GPC(abs)," that meets the following relationship: w < I + J(12), where I = 0.080, and J = -4.00 x 10 -3 min/dg.