1,3-Isobenzofurandione, 5,5′-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis-, polymer with 4,4′-sulfonylbis[benzenamine] 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride-4,4′-diaminodiphenyl sulfone copolymer 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride-4,4′-sulfonyldianiline copolymer 2,2′-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride-4,4′-diaminodiphenyl sulfone copolymer 4,4′-Diaminodiphenyl sulfone-4,4′-(4,4′-isopropylidenediphenoxy)bis(phthalic anhydride) copolymer Benzenamine, 4,4′-sulfonylbis-, polymer with 5,5′-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[1,3-isobenzofurandione] Bis(4-aminophenyl) sulfone-2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride copolymer Bisphenol A dianhydride-4,4′-diaminodiphenyl sulfone copolymer Bisphenol A dianhydride-diaminodiphenyl sulfone copolymer BPADA-4,4′-diaminodiphenyl sulfone copolymer Extem XH 6050