Adhesive compositions

An activatable, curable adhesive comprising a solution of a non-reactive thermoplastic polyurethane polymer resin and a non-reactive epoxide resin dissolved in a free radical addition polymerizable acrylic monomer and a free radical addition polymerizable acid monomer copolymerizable with said acrylic monomer, said solution containing a catalytically effective amount of non-activated free radical addition polymerization catalyst having a half-life of at least about one-half hour at 85.degree. C.

A method of adhesively joining a pair of mating surfaces comprising applying to at least one of said mating surfaces a free radical addition polymerization catalyst activator in a sufficient amount to activate a free radical addition polymerization catalyst by contact, applying to at least one of said mating surfaces an activatable, curable adhesive comprising a solution of a non-reactive thermoplastic polyurethane polymer resin dissolved in a free radical addition polymerizable acrylic monomer and a free radical addition polymerizable acid monomer co-polymerizable with said acrylic monomer, said solution containing a catalytically effective amount of a non-activated free radical addition polymerization catalyst having a half-life of at least about one-half hour at 85.degree. C., joining said pair of mating surfaces in a contact relationship, and maintaining said contact relationship until said adhesive cures to a set.

A method of adhesively joining a pair of mating surfaces comprising applying to at least one of said mating surfaces a free radical addition polymerization catalyst activator in a sufficient amount to activate a free radical addition polymerization catalyst by contact, applying to at least one of said mating surfaces an activatable, curable adhesive comprising a solution of a non-reactive thermoplastic polyurethane polymer resin and a non-reactive epoxide resin dissolved in a free radical addition polymerizable acrylic monomer and a free radical addition polymerizable acid monomer copolymerizable with said acrylic monomer, said solution containing a catalytically effective amount of a non-activated free radical addition polymerization catalyst having a half-life of at least about one-half hour at 85.degree. C, joining said pair of mating surfaces in a contact relationship and maintaining said contact relationship until said adhesive cures to a set.

In the method of forming a tubular can body by deforming a metal sheet into a tubular form and joining mating surfaces of the opposing edges of said metal sheet to form a side seam, the improvement comprising applying to at least one of said mating surfaces a free radical addition polymerization catalyst activator in a sufficient amount to activate a free radical addition polymerization catalyst by contact, applying to at least one of said mating surfaces an activatable, curable adhesive comprising a solution of a non-reactive thermoplastic polyurethane polymer resin dissolved in a free radical addition polymerizable acrylic monomer and a free radical addition polymerizable acid monomer co-polymerizable with said acrylic monomer, said solution containing a catalytically effective amount of a non-activated free radical addition polymerization catalyst having a half-life of at least about one-half hour at 85.degree. C., joining said pair of mating surfaces in a contact relationship, and maintaining said contact relationship until said adhesive cures to a set.