a container closure with a multiple layer liner . the liner comprises a nylon gas transmission barrier and a non - nylon layer bonded by an adhesive layer . the nylon gas transmission barrier may contain an additional passive gas transmission component comprising an in - situ polymerized inorganic clay . an additional active gas transmission component comprising a chemically reactive scavenger may be incorporated into at least one layer of the multiple layer liner . materials of the liner are selected for their process conditions and resulting resistance to degradation .