Patent ID: 7186305

Claim:
A process for increasing the adhesion of a polymeric material to a metal surface, wherein the metal surface comprises copper, said process comprising: a) contacting the metal surface with an adhesion-promoting composition comprising: 1) hydrogen peroxide; 2) an inorganic acid; 3) a corrosion inhibitor; 4) an unsaturated alkyl substituted with aromatic or non-aromatic cyclic groups; and 5) optionally, but preferably, at least one material selected from the group consisting of: (i) sources of halide ions; (ii) organic nitro compounds; (iii) sources of adhesion enhancing species, which species are selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates, isopoly or heteropoly acids of molybdenum, tungsten, tantalum, niobium, vanadium, and combinations of any of the foregoing; and b) bonding the polymeric material to the metal surface.