N CN=C(NH2)(2) was dissolved in dispersing agents-contg. oligo(ethylene adipate) at 160 degrees C and converted with (p,p'-ONCC6H4)(2)CH2 to resp. polyureaurethanes cured them in casting moulds at 110 degrees C for 16 h. Ethoxylated fatty acids and acrylic copolymers were used as efficient dispersing agents. Their addn. resulted in increasing the soly of reactants as well as mech. strength and wear resistance of the polyureaurethanes.