TRANSPARENT BARRIER COATINGS EXHIBITING REDUCED THIN FILM INTERFERENCE

摘要

PURPOSE: A transparent barrier coating is provided to reduce the interference between the light being reflected from the contacting surface between a dry coating and a coated PET polymer article and the light being reflected from the top surface of the article. CONSTITUTION: A vapor barrier coating solution for poly(ethylene terephthalate) (PET) polymeric articles contains a metal polysilicate and transparent nanocrystalline titanium dioxide. The coating reduces interference between light reflected from the top surface of a coated PET polymeric article and the interface between the dried coating and the PET polymeric article. The coated articles are also provided.