2,4 Diamino benzonitrile

Details 2,4 Diamino benzonitrile 2,4 Diamino benzonitrile

1973-12-20

1980-06-17

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260178, 260326N, 260326C, 260465R, C07C12152, C07C12178

Patent

active

042083435

ABSTRACT:
Deep curable polymers having heterocyclic ring systems such as isoindoloquinazolinedione 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 systems and/or other similar heterocyclic ring systems. The copolymers can be prepared by use of diamines containing one or more cyanoimide groupings and/or imide groups in their structure.

REFERENCES:
patent: 3723432 (1973-03-01), Ott
P. Vetesnik, J. Bielavsky, et al., Coll. Czech., Chem. Comm. 33, 2902 (1968).
P. Vetesnik, H. Hrebabecky, et al., Coll. Czech. Chem. Comm. 36, 2500 (1971).
M. F. G. Stevens, J. Chem. Soc. (London) (c), 1968, 348 (1968).

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