Packaging material having an internal surface of polyolefin or polystyrene containing a zeolite in which some of the metal ions have been exchanged for silver

摘要

A fungistatic packaging material having a polyolefin and/or polystyrene internal layer containing 0.05 - 30 wt.% of a type X zeolite exchanged with silver, the silver content of the zeolite being 0.1 - 15 wt.%.