1,4-Benzenedicarboxylic acid-4,4′-phthalidylidenediphenol copolymer 1,4-Benzenedicarboxylic acid, polymer with 3,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-, polymer with 1,4-benzenedicarboxylic acid Phenolphthalein-terephthalic acid copolymer Phenolphthalein-terephthalic acid polymer Phenolphthalein, polyester with terephthalic acid Phthalidylidenediphenol-terephthalic acid copolymer Poly[3,3-bis(p-hydroxyphenyl)phthalide terephthalate] Polyarylate F 2 Terephthalic acid, polyester with phenolphthalein