| 摘要 |
<p>Multilayer films and packaging structures having a delamination seal and an oxygen barrier layer are disclosed. The delamination structure adjacent to the EVOH oxygen barrier layer binds well to the EVOH layer and also retains its ability to delaminate. The multilayer films (12), and packages in which they are utilized, have several layers including a first external layer (2); a second tie layer (4) comprising a mixture of polybutylene and an anhydride modified polyethylene such that a peelable bond is formed between said first external layer and said second tie layer; a third core layer (6) comprising EVOH which functions as an oxygen barrier layer; a fourth tie layer, comprising anhydride modified polyethylene and fifth external (8) layer (10).</p> |
