Composite comprising a reinforcing element and a rubber composition

A composite based on at least one reinforcing element and on a rubber composition based on at least:

• (a) an epoxidized diene elastomer;
• (b) a reinforcing filler;
• and
• (c) a system for crosslinking the epoxidized diene elastomer comprising at least:
• a polyacid compound selected from organopolyphosphorus compounds of general formula (I) and polysulfonic acids of general formula (II);
• and
• a polyphenol compound comprising at least one aromatic ring comprising 6 carbon atoms and at least two hydroxyl —OH functions on the same aromatic ring,
• in which
• A represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and optionally interrupted by one or more heteroatoms, and
• each R symbol represents, independently of one another, a hydrocarbon group comprising at least 1 carbon atom or a hydrogen atom, and
• in which
• A′ represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and optionally interrupted by one or more heteroatoms.