Free edge-sealed film articles and a method for making such, wherein the articles comprise a plurality of film portions and contain a free edge-seal between two of such portions, with one or both of the two free edge-sealed portions consisting essentially of a plurality of layers of diverse thermoplastic...http://www.google.es/patents/US5445865?utm_source=gb-gplus-sharePatente US5445865 - Free edge-sealed film articles
