A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester and is less than 8 μm in thickness. The copolyester consists essentially of repeat units of one or more aromatic dicarboxylic acids,...http://www.google.es/patents/US7368165?utm_source=gb-gplus-sharePatente US7368165 - Process for the production of coated polymeric film
Process for the production of coated polymeric film