SEALABLE BIAXIALLY ORIENTED POLYPROPYLENE FILM FOR PACKAGING

摘要

A laminate film having a surface treated polyolefin-containing resin layer having a flame or corona treated surface and a plastomer-containing a heat sealable resin layer that is not directly on the flame or corona treated surface, the heat sealable resin layer having a storage shear modulus of 400,000 Pa or less at 100 rad/s at 121 °C, 100,000 Pa or less ~t 10 rad/s at 121 °C, and 5000 Pa or less ~t 1 rad/s at 121 °C, is disclosed. The machine direction tensile properties of the laminate film include: Young's modulus of 350,000 psi (2,413,165 kPa) or more, an elongation of 120% or less, and a tensile strength of 27,000 psi (186,158 kPa) or more.