Melt processed linear polyethylenes containing an amine additive are shown
to exhibit improved processability through the addition of certain
surfactants. The amine compounds are generally one or more hindered amine
light stabilizers (HALS), amine antistats, amine antioxidants or amine
based UV inhibitors. Among the melt processing parameters improved are
reduced head pressure, reduced torque, reduced motor load, reduced or
eliminated melt fracture, or combinations of these parameters. The
surfactants can be chosen from a non-aromatic sulfonate or sulfate salt
wherein a cation of the salt is selected from the group consisting of Na,
K, Li, and other alkali cations and a quaternary ammonium cations, said
surfactant being essentially free of halogens.