Epoxide-acrylate hybrid molecules include a polyol backbone, at least one epoxy group, and at least one acrylate group. A method of chemical anchoring is developed using the epoxide-acrylate hybrid molecule in the resin component of a multi-component reactive resin composition. A method of improving the stability of mortars is developed by adding the epoxide-acrylate hybrid molecule to a multi-component reactive resin composition. Furthermore, a multi-component reactive resin composition includes these epoxide-acrylate hybrid molecules, and to the use of such a multi-component reactive resin composition for chemical anchoring.