Cyclic imides from spirobiindane diamines and methods of...

Details Cyclic imides from spirobiindane diamines and methods of... Cyclic imides from spirobiindane diamines and methods of...

C - Chemistry, Metallurgy

07

D

402/221, 260/237

C07D 291/08 (2006.01) C07D 515/00 (2006.01) C08G 63/193 (2006.01) C08G 64/06 (2006.01) C08G 64/18 (2006.01) C08G 65/40 (2006.01) C08G 69/00 (2006.01) C08G 75/06 (2006.01)

Patent

CA 1304078

RD-17717 CYCLIC IMIDES FROM SPIROBIINDANE DIAMINES AND METHODS OF PREPARATION AND USE Abstract Cyclic imides are prepared by the reaction of a bis(dicarboxyphenyl) sulfide or functional derivative thereof, and optionally a second tetracarboxylic acid or functional derivative thereof such as 2,2-bis[4-(3,4-di- carboxyphenoxy)phenyl]propane dianhydride, with a diamine having a spirobiindane nucleus. The cyclic imides may be converted to linear polyimides by reaction with a basic alkali metal sulfide.

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