Abstract: A rubber composition based on at least an elastomer matrix is provided. The elastomer matrix comprises a first diene elastomer having a number-average molecular weight, Mn, of greater than or equal to 100 000 g/mol; a functionalized second diene elastomer bearing at the chain end a function capable of reacting with the surface of silica, said functionalized diene elastomer having a number-average molecular weight, Mn, of less than or equal to 80 000 g/mol: and a reinforcing inorganic filler, in an amount ranging from 55 phr to 200 phr. The elastomeric matrix allows good dispersion of the reinforcing inorganic filler. A finished or semi-finished article comprising such a composition, tire tread comprising such a composition, and a tire or semi-finished product comprising such a composition is also provided.

Abstract: The tread of a civil engineering vehicle tire comprises a rubber composition based on at least one elastomer matrix comprising from 50 to 100 phr of a styrene-butadiene copolymer and from 0 to 50 phr of isoprene elastomer; a reinforcing filler comprising predominantly carbon black with CTAB specific surface area greater than or equal to 90 m2/g; from 1 to 30 phr of at least one hydrocarbon resin predominantly consisting of units derived from aromatic and cycloaliphatic monomers, having an aromatic proton content between 0 and 12%, an ethylenic proton content greater than 3%, a number-average molecular weight above 500 g/mol and a polydispersity index greater than 2; and a crosslinking system.

Abstract: A rubber composition based on at least an elastomer matrix is provided. The elastomer matrix comprises a first diene elastomer having a number-average molecular weight, Mn, of greater than or equal to 100 000 g/mol; ii. a functionalized second diene elastomer bearing at the chain end a function capable of reacting with the surface of silica, said functionalized diene elastomer having a number-average molecular weight, Mn, of less than or equal to 80 000 g/mol; and a reinforcing inorganic filler, in an amount ranging from 55 phr to 200 phr. The elastomeric matrix allows good dispersion of the reinforcing inorganic filler. A finished or semi-finished article comprising such a composition, a tyre tread comprising such a composition, and a tire or semi-finished product comprising such a composition is also provided.