1,4-Benzenedicarboxylic acid, polymer with butylphenol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, formaldehyde and 1,6-hexanediol 67875-43-8 Formaldehyde, trimellitic acid anhydride, butyl phenol, 1,6-hexanediol, isophthalic acid polymer