Synonyms: 1,3-Isobenzofurandione,5,5’-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis-,polymerwith1,3-benzenediamine;3-isobenzofurandione,5,5’-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis-p;olymerwith1,3-benzenediamine;poly(bisphenola-co-4-nitrophthalicanhy-dride-co;POLY(BISPHENOL A-CO-4-NITROPHTHALIC ANHYDRIDE-CO-1,3-PHENYLENEDIAMINE);POLYETHERIMIDE;POLY(BISPHENOL A-CO-4-NITROPHTHALIC ANHY -DRIDE-CO-1,3-PHENYLENEDIAMINE), MI 9;POLY(BISPHENOL A-CO-4-NITROPHTHALIC ANHY -DRIDE-CO-1,3-PHENYLENEDIAMINE), MI 18