Composite article comprising a metal reinforcement element

A composite article comprising at least one metal reinforcement element embedded in a polymer material, said metal reinforcement element being at least partially coated with an adhesion promoting layer, said adhesion promoting layer being interposed between said metal reinforcement element and said polymer material, characterized in that said adhesion promoting layer comprises an acid anhydride-grafted polyolefin and a phenolic antioxidant selected from 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butylphenol, 2,6-d-tert-butyl-4-s-butylphenol, mixture of alkylated phenols or 4,4′-methylene-bis(2,6-di-ter-butylphenol) or a combination including any of the above phenolic antioxidants.

A metal element for reinforcement of a polymer material, said metal reinforcement element being at least partially coated with an adhesion promoting layer, characterized in that said adhesion promoting layer comprises an acid anhydride-grafted polyolefin and a phenolic antioxidant selected from 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butylphenol, 2,6-d-tert-butyl-4-s-butylphenol, mixture of alkylated phenols or 4,4′-methylene-bis(2,6-di-ter-butylphenol) or a combination including any of the above phenolic antioxidants.