Consistent Slip Masterbatch for Polyethylene Films

摘要

A masterbatch of additives is useful for maintaining a constant and reduced coefficient of friction in polyethylene (PE) based films. The masterbatch is a compounded blend of siloxane additive in conjunction with a mineral, a cyclic olefin copolymer and, optionally, an antioxidant. These additives are different from the polar additives used in the past to reduce COF of PE films and do not have inherent incompatibility with the nonpolar PE matrix.