Rubber composition based on at least one functionalized elastomer comprising polar functional groups and a specific polyphenolic compound

A composite based on at least one reinforcing element and a rubber composition, the rubber composition based on at least one functionalized elastomer comprising polar functional groups, a reinforcing filler, and a crosslinking agent,

• wherein the crosslinking agent comprises a polyphenolic compound comprising at least three aromatic rings comprising 6 carbon atoms, each bearing at least two vicinal hydroxyl groups,
• wherein the rubber composition does not simultaneously comprise an alkyl-imidazole and a polycarboxylic acid of general formula (P1):
• in which A is a covalent bond or a hydrocarbon-based group including at least 1 carbon atom, which is optionally substituted and optionally interrupted with one or more heteroatoms,
• wherein the rubber composition does not comprise cobalt salts,
• wherein the rubber composition does not comprise zinc or zinc oxide or comprises less than 1 phr of zinc or zinc oxide, and
• wherein the at least one reinforcing element has a length at least 10 times greater than a greatest dimension of a cross-section thereof and comprises a metallic surface.