Heat-resistant flameproof compositions

Details Heat-resistant flameproof compositions Heat-resistant flameproof compositions

1976-03-03

1978-01-10

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 78TF, 260DIG24, 428268, 428276, 428285, C08K 302

Patent

active

040678970

ABSTRACT:
Heat-curable compositions are disclosed based on a prepolymer obtained by reacting (a) a N,N'-bis-imide of an unsaturated dicarboxylic acid of the formula ##STR1## in which D represents a divalent radical containing a carbon-carbon double bond and A is a divalent radical which possesses at least 2 carbon atoms, and (b) a di-primary diamine of the general formula NH.sub.2 --B -- NH.sub.2, in which B represents a divalent radical which does not have more than 30 carbon atoms, in a ratio of number of mols of bis-imide
umber of mols of diamine of between 1.2 and 5, the composition containing up to 15% by weight, relative to the weight of the prepolymer, of red phosphorus in the form of a powder having a mean particle size of less than 200.mu..

REFERENCES:
patent: 3330783 (1967-07-01), Piechota et al.
patent: 3546160 (1970-12-01), Dany et al.
patent: 3562223 (1971-02-01), Bargain et al.
patent: 3663654 (1972-05-01), Haaf
patent: 3763057 (1973-10-01), Diehr
patent: 3847861 (1974-11-01), Largman et al.
patent: 3878162 (1975-04-01), Breitschaft
patent: 3883475 (1975-05-01), Racky et al.

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