PROCESS FOR COATING METAL SURFACES WITH POLYOLEFINS

摘要

"PROCESS FOR COATING METAL SURFACES WITH POLYOLEFINS" A tough and long-lasting adhesion of polyolefins to metal substrates is realized by means of a process comprising the following four process steps, carried out in succession: a) mechanical cleaning of the metal surface; b) treatment of the metal surface with a water-alcohol solution containing at least an alkoxysilane and boric acid; c) thermal treatment of the surface coming from the (b) step; d) treatment of the so-treated surface with a poliolefin based composition, containing zeolites and carbon black.