Patent ID: 8480845

Claim:
A thermosetting solvent-free single-component composition based on (iso)cyanates having a storage stability at room temperature of at least 2 weeks, comprising, in combination: (A) 5- 90 parts by weight of one or more of an at least difunctional (iso)cyanate component selected from the group consisting of an at least difunctional cyanate, an at least difunctional isocyanate and mixtures thereof, (B) 5- 50 parts by weight of a latent curing agent based on nitrogen compounds suitable for addition crosslinking, (C) 0- 50 parts by weight of an epoxy-containing compound, and (D) 0- 50 parts by weight of modifiers selected from at least one of the groups of fillers, colorants, pigments, stabilizing agents, moisture-binding agents, accelerators, flow agents, wetting agents, thixotropifying agents, diluents and polymeric thickening agents, with the sum of all parts by weight being 100, and wherein the latent curing agent is solid up to a temperature of at least 40° C. and remains inactive, but becomes active in a molten, liquid state at a temperature of from 80 to 160° C., and causes a polyaddition and crosslinking reaction between said latent curing agent and said at least difunctional (iso)cyanate component; wherein the latent curing agent comprises a polymeric nitrogen-containing compound formed from adducts of epoxy resins and amines. and wherein the at least difunctional (iso)cyanate component contains additional reactive (meth)acrylate groups capable of forming an interpenetrating (meth)acrylate network by crosslinking.