Synonyms: 1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 4,4'-methylenebis[benzenamine] and 3,3'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis[1-propanamine];Benzophenonetetracarboxylic acid dianhydride, 1,3-bis(.gamma.-aminopropyl) tetramethyldisiloxane, p,p'-methylenedianiline polymer