Synonyms: Poly[(1,3-dioxo-2,5-isoindolinediyl)carbonyl(1,3-dioxo-5,2-isoindolinediyl)-m-phenylene](8CI); 3,3',4,4'-Benzophenonetetracarboxylic aciddianhydride-m-phenylenediamine copolymer, SRU;3,3',4,4'-Benzophenonetetracarboxylic dianhydride-m-phenylenediamine polymer,SRU; 4,4'-Carbonyldiphthalic anhydride-m-phenylenediamine copolymer, SRU;BTDA-MPDA, SRU; BTDA-m-phenylenediamine copolymer, sru;Benzophenonetetracarboxylic acid dianhydride-m-phenylenediamine copolymer, SRU;Benzophenonetetracarboxylic dianhydride-m-phenylenediamine copolymer, SRU; Diethylbenzophenonetetracarboxylate-m-phenylenediamine polymer, SRU; ITA 61;Poly[(1,3-dihydro-1,3-dioxo-2H-isoindole-2,?-diyl)carbonyl(1,3-dihydro-1,3-dioxo-2H-isoindole-?,2-diyl)-1,3-phenylene];Skybond 700