Thermosetting polymers from a polyimide and ammonia

Details Thermosetting polymers from a polyimide and ammonia Thermosetting polymers from a polyimide and ammonia

1974-03-04

1976-05-04

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296HN, 260 302, 260 326NA, 260 334R, 260 47CZ, 260 65, 260 78UA, C08G 6902, C08G 6926

Patent

active

039547116

ABSTRACT:
Thermosetting polymers, both prepolymers and cured resins, are produced by reacting ammonia with a polyimide of the formula: ##EQU1## IN WHICH A IS A NUMBER FROM 2 TO 4, Y represents an organic radical of valency a, and A and T, which may be identical or different, each represent hydrogen, chlorine or methyl, the proportions of polyimide and ammonia being such that there are at least 2 imide groups per mol of ammonia. These polymers find utility in the production of materials liable to undergo severe heat stresses.

REFERENCES:
patent: 3669930 (1972-06-01), Asahara et al.
sheremetera et al., Journal of Polymer Science, Part C, No. 16, pp. 1631-1646 (1967).

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