Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-05-19
1976-06-29
Rush, Raymond V.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260 47R, 260 49, 260 50, 260 65, C07D24142, C07D24144
Patent
active
039667294
ABSTRACT:
An aromatic bis(o-diamine) is reacted with an aromatic bisbenzil to provide a benzil end-capped quinoxaline oligomer which is then reacted with 4-(3-ethynylphenoxy)orthophenylene diamine to give an ethynyl terminated polyquinoxaline. Because the polyquinoxalines can be cured to provide thermally stable polymer compositions having superior mechanical properties, the compositions are particularly suitable for use in the fabrication of reinforced composite structures.
REFERENCES:
patent: 3876614 (1975-04-01), Hedberg
Arnold Fred E.
Kovar Robert F.
Berch Mark L.
Kuhn Cedric H.
Rush Raymond V.
Rusz Joseph E.
The United States of America as represented by the Secretary of
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