Plastic tube, useful to store pasty substances e.g. tooth paste, comprises multilayered foil tube body exhibiting gas- and waterproof barrier film, where the film comprises polyglycolic acid-layer and coupling agent having metal compound

摘要

Plastic tube (I) comprises a tube body of multilayered foil (5) exhibiting at least gas- and waterproof barrier film (7), where the barrier film comprises at least a polyglycolic acid-layer (9) that is adherently connected over a layer of coupling agent (11, 12) at least unilaterally with at least thermoplastic synthetic layer (13, 15), where the coupling agent exhibits a metal compound and the layer thickness of coupling agent is 100-500 nm.