FIELD: chemical engineering.
SUBSTANCE: invention relates to a rubber composition showing improved processing/rigidity, wherein the above composition is based on at least a diene elastomer which enhances the filler, the suction system, the epoxy resin in a quantity between 1 and 30 mass fractions on 100 mass fractions of the elastomer, wt.%, and the special amino-containing hardener in a quantity between 1 and 15 wt.% containing in particular at least two primary functional amino groups, located on at least one six-member aromatic ring and at least two radicals of Ri which are identical or distinct, selected from a group consisting of linear or branched C1-C6 alkyl radicals, halogens and esters, tertiary amines, thioesters, ketones, esters and amides substituted by linear or branched C1-C6 alkyl radicals, wherein said ring does not contain a hydrogen atom arranged in ortho-position relative to the primary functional amino group.
EFFECT: invention shows improved processing/rigidity.
26 cl, 1 tbl
