67905-82-2 Adipic acid, 1,6-hexandiol, phthalic anhydride, 4,4'-dicyclohexylmethanediisocyanate polymer Hexanedioic acid, polymer with 1,6-hexanediol, 1,3-isobenzofurandione and 1,1'-methylenebis(4-isocyanatocyclohexane)