A multilayer structure has barrier properties for gases and vapors, for example oxygen and water vapor; the structure comprises: an organic substrate layer, and a multilayer permeation barrier thereon; the barrier comprises: a) a first inorganic coating contacting a surface of the substrate layer, and...http://www.google.ca/patents/US7074501?utm_source=gb-gplus-sharePatent US7074501 - Coatings with low permeation of gases and vapors
