Heat-sealable composite polyester film

摘要: A heat-sealable, coextruded composite polymeric film comprising a substrate layer first copolyester material having on surface thereof heat-sealable second wherein: (i) the and materials are different from each other; (ii) of comprises an aromatic dicarboxylic acid saturated aliphatic formula CnH2n(COOH)2 wherein n is 2 to 8; (iii) one or more wax(es); (iv) shrinkable thermoformable; use as packaging film, particularly as, in manufacture of, lidding for heat-sealing receptacle containing food product.