REACTIVE ADHESIVE WITH A LOW MONOMER CONTENT AND WITH MULTISTAGE HARDENING

摘要

The invention relates to a solvent-free reactive adhesive or a reactive adhesive containing solvents, which has a low monomer content and which hardens in multiple stages. The reactive adhesive contains at least one polyurethane prepolymer (A) with a low monomeric polyisocyanate content (a) and at least one free functional group which is capable of reaction with a compound having at least one acid hydrogen atom, especially at least one isocyanate group; and at least one compound (B) with at least one radiation- polymerisable functional group. The reactive adhesive is suitable for producing composite materials and has a high degree of flexibility as well a s good initial adhesion.