67815-77-4 Ethanesulfonic acid, 2-((2-aminoethyl)amino)-, monosodium salt, polymer with 1,6-diisocyanatohexane, 1,6-hexanediol and 1,3-isobenzofurandione Phthalic anhydride, 1,6-hexanediol, 2-((2-aminoethyl)amino)ethanesulfonic acid monosodium salt, 1,6-hexamethylenediisocyanate polymer