Multilayered barrier structures comprising a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation...http://www.google.es/patents/US5643375?utm_source=gb-gplus-sharePatente US5643375 - Method for forming multilayered barrier structures
Method for forming multilayered barrier structures
