Non toxic activators for adhesive compositions

Claim 1

In an activatable curable adhesive comprising a non-reactive thermoplastic polyurethane resin or a non-reactive elastomer dissolved in a non-acid methacrylic or acrylic monomer and a methacrylic or acrylic acid monomer, said monomers being essentially devoid of peroxy catalyst activation capability, said solution containing an effective amount of a peroxy catalyst, the said adhesive being activatable by contact with a peroxy catalyst activator; the improvement comprising having in addition in said adhesive an activator soluble in the adhesive solution, to activate the peroxy catalyst said activator being selected from the group consisting of: a. ##STR12## R=H or phenyl, a=0 or 1, a+b=3 and when R is phenyl, a is 1, b. CH 2 =CH(CH 3 ) COOCH 2 CH(OH)CH 2 A, which is different from the other acrylic or methacrylic monomers in the adhesive, wherein A is one of: ##STR13## c. homopolymers of the compounds of (b), d. a copolymer of at least 25% by weight of a compound of (b) with a member selected from the group consisting of methyl methacrylate, methyl acrylate, 2-ethyl hexyl acrylate, or butyl acrylate, e. the reaction products of epoxy polymers with secondary amines selected from the group consisting of N-methyl aniline, N-methyl-p-toluidine, N-β-hydroxy ethyl aniline, N-ethyl aniline, N-n-propyl aniline, N-β-hydroxy ethyl-p-toluidine, diethanol amine, dihexyl amine, p-chloro-N-methylaniline, N,N'-dimethyl-p-phenylene diamine, N,N'-di-2-naphthyl-p-phenylene diamine and N-methyl-3, 5-xylidene wherein from 0.25 to one amino equivalent weight is reacted with one oxirane equivalent weight.