Ethylene acrylic acid (EAA) copolymer comprises ethylene and acrylic acid and exhibits the properties of both compounds. The compound is dispersible in aqueous alkali solutions and amines. EAA copolymer exhibits unique properties such as adhesion, water resistance, flexibility, enhanced barriers, improved optics, and high strength. EAA copolymer is used in adhesives, barrier coatings, and inks.