Adhesive Composition with Retarding Additive

An adhesive composition comprising one or more (meth)acrylate ester monomers, a redox catalyst system, a retarding additive, a polymeric modifier, and a free-radical polymerization inhibitor, wherein the retarding additive is a secondary amine and the polymeric modifier is present in an amount ranging from 5 to 50 wt % based on the total weight of the composition, the retarding additive is effective to extend the open time of the adhesive composition without affecting the mechanical and adhesive properties or storage stability thereof, the redox catalyst system is based on an organic peroxide free-radical precursor, a reducing agent based on tertiary amine, an organic acid capable of cyclic tautomerism and a transition metal cure accelerator.