Synonyms: Poly[(5,7-dihydro-1,3,5,7-tetraoxobenzo[1,2-c:4,5-c']dipyrrole-2,6(1H,3H)-diyl)-p-phenylenemethylene-p-phenylene](8CI); Benzo[1,2-c:4,5-c']dipyrrole, deriv., polymer;4,4'-Diaminodiphenylmethane-pyromellitic acid copolymer, sru;4,4'-Diaminodiphenylmethane-pyromellitic anhydride copolymer, SRU;4,4'-Diaminodiphenylmethane-pyromellitic anhydride polymer, sru;4,4'-Diaminodiphenylmethane-pyromellitic dianhydride copolymer, SRU;4,4'-Diaminodiphenylmethane-pyromellitic dianhydride polymer, SRU;4,4'-Diaminodiphenylmethane-pyromellitic dianhydride polymer, polyimide SRU;4,4'-Diphenylmethane diisocyanate-pyromellitic dianhydride copolymer sru;4,4'-Methylenebis[aniline]-pyromellitic dianhydride copolymer, sru;4,4'-Methylenedianiline-pyromellitic acid polymer, SRU;4,4'-Methylenedianiline-pyromellitic anhydride copolymer, SRU;4,4'-Methylenedianiline-pyromellitic anhydride polymer, SRU;4,4'-Methylenedianiline-pyromellitic dianhydride copolymer, SRU;4,4'-Methylenedianiline-pyromellitic dianhydride pol