| abstract |
Polyurea systems, comprising A) aspartic acid esters with amine functionality of the general formula (I) ** (See formula) ** in which X is an n-valent organic residue obtained by removing the primary amino groups of an nfunctional amine, R1, R2 are the same or different organic residues that do not have active hydrogen according to Zerewitinoff and n is an integer of at least 2, and B) isocyanate functional prepolymers that have residual monomer contents of less than 1% by weight , which can be obtained by reacting B1) aliphatic isocyanates with B2) a polyol component with number average molecular weights> = 400 g / mol and average OH functionalities of 2 to 6, containing polyester polyether polyols as well as optionally polyester polyols and / or polyether polyols, and C) optionally organic fillers having a viscosity measured in accordance with DIN 53019 at 23 ° C in the range of 10 to 6000 mPas and D) optionally reaction products of prepoly isocyanate-functional mers according to the definition of component B) with aspartic acid esters according to component A) and / or organic fillers according to C) |