Use of nucleation to improve slip blooms in metallocene polypropylene resins

摘要

The method includes combining a metallocene catalyzed polypropylene with a nucleating agent and a slip agent to form a composition, and forming a cast film from the composition. The slip agent may exhibit an increased slip bloom rate in the cast film compared to the slip bloom rate exhibited by the slip agent in other cast films that do not have the nucleating agent present in the cast film. The cast film may exhibit a coefficient of friction that is smaller than the coefficient of friction of other cast films that are not present in the cast film.