the film is claimed as durable and with good optical properties. it is proposed as a replacement for oxygenbarrier films that rely on the use of ethylene vinyl alcohol copolymer evoh or nylon mxd6, which lose their barrier properties when exposed to water. the patent filing compared to others  have assessed over the past  months is that it is as brief in length&mdashonly 5 pages long&mdashas it is of illustrations, in this instance just two, which show crosssection, layerbylayer structures. sourcehttpwww.packagingdigest.comfoodpackagingnewhighoxygenandwaterbarriermultila…