OPAQUE PEARLESCENT FILMS CONTAINING DISPERSED INCOMPATIBLE POLYMER AND POLYMERIC INTERFACIAL AGENT

摘要

Opaque pearlescent polymer films, e.g., polypropylene, containing finely dispersed particles of an incompatible polymer e.g., nylon, are improved by blending a polymeric interfacial agent with the film polymer and the incompatible polymer to give a film having the incompatible polymer dispersed in smaller spherical particles and reduced stringness.