A LAMINATED MATERIAL HAVING A HIGH OXYGEN-BARRIER EFFECT

摘要

The invention relates to a laminate material comprising a film of plastics material as a substrate coated with at least one hybrid organic- inorganic layer having gas-barrier properties. The hybrid organic -inorganic layer with gas- barrier properties is formed on at least one surface of the film of plastics material by deposition by means of the sol- gel technique of an aqueous or hydroalcoholic coating composition comprising from 0.1 to 25% by weight of polyvinyl alcohol and from 0.1 to 30% by weight of a metal alkoxide.