Compositions of cyanoimide polymers and heterocyclic polymers made from cyanoimide precursors
Abstract
Abstract DEEP CURABLE POLYMERS HAVING HETEROCYCLIC RING SYSTEMS SUCH AS ISIONDOLOQUINAZOLINEDIONE RING SYSTEMS PREPARED FROM NOVEL CYANOIMIDE POLYMERS, MOST DESIRABLY 2''-CYANOIMIDE POLYMERS. PREFERABLY THE CYANOIMIDE POLYMERS ARE PREPARED FROM A DIAMINE HAVING AT LEAST ONE NITRILE GROUP IN THE TWO POSITION TO AN AMINE GROUP AND A DIANHYDRIDE HAVING AT LEAST TWO CYCLIC ANHYDRIDE GROUPS, COPOLYMERS MAY BE PREPARED HAVING OTHER LINKAGES, NOTABLY IMIDE LINKAGES, IN ADDITION TO ISOINDOLOQUINAZOLINEDIONE RING SYSTEM AND/OR OTHER SIMILAR HETEROCYCLIC RING SYSTEMS. THE COPOLYMERS CAN BE PREPARED BY USE OF DIAMINES CONTANING ONE OR MORE CYANOIMIDE GROUPINGS AND.OR IMIDE GROUPS IN THEIR STRUCTURE.
Inventors
- 👤 L Frost
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