Multilayer multifunctional packing elements and process for preparing the same.

摘要

Multilayer packing elements having an high-absorption activity toward liquid aqueous substances as well as barrier properties toward gases such as oxygen and carbon dioxide are prepared by thermomolding of multilayer and multifunction polymeric systems. They comprise an inner porous layer (1), an intemediate absorbing layer (2) and an outer sheet (3) having high barrier properties toward gases. <IMAGE>