The invention relates to a resin mixture having a modified epoxy (meth)acrylate resin as the base resin, and optionally at least one reactive diluent, at least one stabilizer, and at least one accelerator, wherein the modified epoxy (meth)acrylate resin can be obtained by reacting organic compounds having epoxide groups with (meth)acrylic acid, and then by the partial esterification of the β-hydroxyl-groups, the same formed during the reaction, with the anhydride of a saturated dicarboxylic acid, to reactive resin mortars containing the same, and to the use thereof for the purpose of chemical fastening, by means of which it is possible to manufacture products which are not subject to labeling requirements and which additionally provide high bond strength.