Combinations of antiblock and polymer processing additives (PPA) can result in interactions that reduce the PPA effectiveness. This is typically characterized by the need for higher concentrations of PPA to eliminate melt fracture compared to formulations not containing antiblock. Our experiments demonstrated that a new high-clarity antiblock interacts less with different PPAs in terms of melt fracture elimination and extruder pressure drop. Also, a new experimental antiblock showed almost no interaction with PPA, even when added via a combined masterbatch. New technology also results in improved optical properties for linear low density polyethylene (LLDPE) film.
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