Processable high temperature polymers prepared from amine termi

Details Processable high temperature polymers prepared from amine termi Processable high temperature polymers prepared from amine termi

1974-01-04

1976-03-09

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

427340, 428474, 260 302, 260 326N, 260 47R, 260 49, 260 52, 260 63N, 260 78TF, 260 78SC, 260 784N, 260 79, 260 793M, 260838, 260857R, C08G 7310, C08G 7314, C08G 7318, C08G 7320

Patent

active

039431070

ABSTRACT:
This invention provides compositions containing amine terminated high temperature prepolymers such as polyimides, polyamide-imides or the corresponding polyamide-acids in combination with cyanamides of polyfunctional secondary amines and the crosslinked polymers obtained therefrom. These cyanamides are reactive fluxes which facilitate processing of the high temperature prepolymer resin by lowering the softening temperature under processing conditions, and they also chain-extend and cross-link the prepolymer resin.

REFERENCES:
patent: 3436372 (1969-04-01), Hoegger
patent: 3488742 (1970-01-01), Blekicki et al.
patent: 3513134 (1970-05-01), Filius
patent: 3642725 (1972-02-01), Schminke et al.
patent: 3817920 (1974-06-01), Langager

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