MULTILAYER POLYMERIC/INORGANIC OXIDE STRUCTURE FOR ENHANCED GAS OR VAPOR BARRIER

摘要

The coated multilayer structure comprising a polymeric base layer, an inorganic oxide gas barrier layer on a surface on the polymeric base layer, and a top coat on the inorganic oxide gas barrier layer, the top coat comprising a soluble compound capable of reducing the permeability of the multilayer structure to gas or vapor. A method for enchancing the gas or vapor barrier properties of a multilayer polymeric/inorganic oxide structure is also disclosed. According to one embodiment, SiOx coated polyethylene terephthalate containers are coated with a gas or vapor barrier enhancing top coat.