The present invention relates to a process for forming composite shaped
articles used for athletic shoe soles, tubes, pipes, transmission belts
and conveyor belts, comprising a vulcanized elastomer directly or
autogenously bonded, that is, essentially in the absence of adhesive, to a
thermoplastic elastomer comprising recurring polyamide-6 and polyether
structural units, such as thermoplastic polyetheresteramide elastomers,
are provided. The article is prepared by a process comprising placing a
thermoplastic elastomer component into a vulcanization mold, overmolding
onto at least a portion of the surface area of one face surface of the
thermoplastic elastomer component with a vulcanizable elastomer component,
and vulcanizing the vulcanizable elastomer component at a temperature
below the melting point of the thermoplastic elastomer component but over
a wide temperature range, which can be about 40.degree. C. or higher.