A multilayer structure with improved permeation for atmospheric diffusion of
aromatic
products wherein the structure comprises: a permeable membrane wherein said permeable
membrane comprises at least two polymeric layers wherein the polymer of each layer
is independently selected from the group consisting of polyethylene, very low density
polyethylene, low density polyethylene, ethylene methylacrylate copolymer; a release
layer wherein said release layer comprises a nylon polymer or a ethylene vinyl
alcohol copolymer wherein the release layer is adhered to most inner polymeric
layer of the permeable member which comprises the permeable membrane and wherein
the adhesion between release layer and the adjacent layer of the polymeric permeable
membrane is a relatively weak bond compared to the bond between the layers of the
polymeric permeable membrane; and an impermeable membrane wherein said impermeable
membrane comprises one or more layers wherein the materials which comprise the
individual layers of the impermeable membrane are independently selected from metal
or foil and wherein said impermeable portion is laminated to said release layer.
