Patent ID: 6498224
Filing Date: 2002-12-24
Classification: C08G

Abstract:
A method for the synthesis of poly(etherimide)s, comprising transimidation of a bis(imide) (IV) wherein the alkyl moiety is a straight or branched chain alkyl group having from 1 to about 18 carbon atoms, and S is a divalent radical selected from the group consisting of a straight or branched chain alkylene group having from about 2 to about 20 carbon atoms, a cycloalkylene group having from about 3 to about 20 carbon atoms, an arylene group having from 6 to about 20 carbon atoms, and halogenated derivatives thereof, with a substituted phthalic anhydride having a substituent selected from the group consisting of nitro, bromo, fluoro and chloro to yield a dianhydride (V): â€ƒand reaction of dianhydride (V) with diamine (VI) H2Nâ€”Râ€”NH2â€ƒâ€ƒ(VI) wherein R is selected from the group consisting divalent substituted or unsubstituted aromatic hydrocarbon radicals having about 6 to about 20 carbon atoms and halogenated derivatives thereof, divalent substituted or unsubstituted straight or branched chain alkylene radicals having about 2 to about 20 carbon atoms, divalent substituted or unsubstituted cycloalkylene radicals having about 3 to about 20 carbon atoms, and divalent radicals of the general formula (XII) wherein Q is a divalent moiety selected from the group consisting of â€”Oâ€”, â€”Sâ€”, â€”C(O)â€”, â€”SO2â€”, CyH2yâ€” wherein y is an integer from 1 to 5, and halogenated derivatives thereof.