Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive layer in composite films or sealant layer in flexible packaging structures. Offers good interlayer adhesion to PE and PA, good optical properties, very good toughness, strength, stress crack and product resistance, good hot-tack and sealability, insensitivity to moisture and adhesion to paper, metals and other polar substrates. Gives processing ease.