Crosslinking primer for flexible packaging film

摘要

A multi-ply film including a thermoplastic polymeric substrate, and a vinylidene chloride polymer top-coat have a primer which anchors the substrate to the top-coat. The primer is a copolymer of one or more acrylic comonomers and a cross-linking copolymerizable comonomer having pendant free hydroxyl groups or groups convertible to free hydroxyl groups.