Flame retardant compositions utilizing amino condensation compounds

A method for reducing combustibility of a more flammable organic material comprising incorporating an amino condensation composition with the more flammable organic material, under reaction conditions of the more flammable organic material, and in an amount sufficient to reduce the combustibility of the more flammable organic material, said amino condensation composition produced by the method comprising of mixing, heating and reacting the following components;

• (A) urea
• (B) nitrogen containing compound that will condensate and/or react with isocyanic acid and/or cyanic acid produced by heating urea, and selected from the group consisting of melamine, melamine cyanurate, dicyandiamide, guanidine, cyanoguanidine, aminoguanidine and
• mixtures thereof;
• in the amount of 10 to 300 percent by weight percentage based on the weight of urea;
• then adding and mixing in a
• (C) Filler in the amount of 300 percent by weight based on the weight of the amino condensation compound:
• components A and B are first mixed, then heated to above the melting point of urea and up to 160 degree C. for .1 to 3 hours at ambient or elevated pressure and reacted thereby producing an amino condensation composition, then component C is added and mixed.