| abstract |
A hot-melt composition based on:n (a) at least one prepolymer containing isocyanate groups; (b) at least one polyepoxide; (c) at least one catalyst which catalyses the trimerization of the isocyanates and the polymerization of the epoxides; and, optionally, (d) additives and/or modifiers, nis disclosed. n The composition makes it possible adhesives and sealants to be formulated, which, once applied, crosslink independently from the environmental humidity conditions, developing, within very short times, even at room temperature, high values of heat resistance and mechanical strength. n The composition can be used as well in the sector of coatings, impregnating agents and laminates. |