FIELD: chemistry.
SUBSTANCE: invention relates to a rubber composition, which can be used, in particular, in tyres based on at least one diene elastomer, one reinforcing filler, one cross-linking system, one phenolic resin and one polyaldehyde, where the phenol resin fraction ranges between 2 and 15 phr, and the polyaldehyde fraction ranges between 1 and 20 phr. The use of polyaldehyde makes it possible to advantageously replace conventional methylene donors while preventing the production of formaldehyde during the vulcanization of the rubber compositions and thus to limit the environmental impact of these compounds.
EFFECT: polyaldehyde compounds make it possible not only to obtain the rubber compositions exhibiting the same low-strain stiffness as the conventional rubber compositions using conventional methylene donors but also, to greatly improve the fatigue strength of the rubber compositions and thus the endurance of the tyres.
12 cl, 2 tbl
