A COMPOSITE MATERIAL COMPRISING A SUBSTRATE WITH A BARRIER LAYER

摘要

The invention relates to a composite material and a process for manufacturin g the composite material by applying at least a single organic barrier layer t o a substrate to reduce the oxygen permeability of the substrate. Depending on the intended application, the composite material may also include an outer cover layer over the barrier layer to improve moisture resistance. The preferred materials are triazines, particularly melamine, that are vapour- deposited onto the substrate to form a thin, durable transparent barrier lay er.