| abstract |
A composite reinforcer capable of adhering directly to a diene rubber matrix, which can be used in particular as a reinforcing element for a tyre, comprises: one or more reinforcing thread(s), for example a thread or cord made of carbon steel; and a layer of a polymer composition which covers the said thread, individually each thread or collectively several threads, this layer comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, such as, for example, a polyamide, a poly(p-phenylene ether) and a functionalized diene elastomer, such as, for example, natural rubber or a butadiene homopolymer or copolymer, bearing functional groups chosen from epoxide, carboxyl, acid anhydride or acid ester groups. A process for the manufacture of such a composite reinforcer, and a finished article or semi-finished product made of rubber, in particular a tyre, incorporating such a composite reinforcer are also disclosed. |