Tire having a composition comprising an ethylene-rich elastomer, a peroxide and a specific acrylate derivative

A tire comprising a rubber composition based on:

• an elastomeric matrix comprising predominantly a random copolymer comprising ethylene units and conjugated diene units, the mole fraction of the ethylene units in the copolymer being within a range extending from 50% to 95%;
• at least one peroxide;
• and
• at least one polyfunctional acrylate derivative of formula (I):
• [X]pA (I)
• in which:
• A represents a linear, branched or cyclic C4-C30 hydrocarbon group, interrupted and/or substituted by one or more heteroatoms, A comprising p free valences, p having a value ranging from 2 to 6, and
• [X]p corresponds to a radical of formula (II):
• in which
• R1, R2 and R3 independently represent a hydrogen atom or a C1-C8 hydrocarbon group selected from the group consisting of linear, branched or cyclic alkyl groups, alkylaryl groups, aryl groups and aralkyls, and which are optionally interrupted by one or more heteroatoms, it being possible for R2 and R3 together to form a non-aromatic ring, and
• (*) represents the point of attachment of the radical of formula (II) to A, it being understood that the 2 to 6× radicals are identical or different.