Composite of a high nitrile copolymer adhered to an olefin based polymer

A composite comprising a high nitrile copolymer of 55 to 95 mol percent of a nitrile monomer selected from the class consisting of acrylonitrile, methacrylonitrile and ethacrylonitrile, and the balance composed of butadiene or styrene and a monomer of alkyl acrylate or methacrylate where the alkyl radical contains from 2 to 10 carbon atoms adhered to an olefinic base polymer of simple olefins of 2 to 6 carbon atoms and an olefinic carboxylic acid of 3 to 8 carbon atoms with a two-phase block polymer adhesive comprising an elastomeric base block having at least two terminal nonelastomeric blocks, said elastomeric base block being the polymer of a conjugated diene of 4 to 8 carbon atoms and the nonelastomeric block being the polymer of a monomer selected from the class consisting of styrene, alpha-methylstyrene and vinyl toluene.