The invention relates to a rubber composition exhibiting improved tear strength. This composition is based on 20 to 50 phr of copolymer containing ethylene units and 1,3-diene units, the ethylene units in the copolymer representing between 50 mol% and 95 mol% of the monomer units of the copolymer; 50 to 80 phr of polyisoprene comprising a weight content of cis-1,4 bonds of at least 90% of the weight of the polyisoprene; a filler comprising from 11 to 56 phr of carbon black and from 4 to 24 phr of silica, the weight of silica being less than or equal to 30% by weight relative to the total weight of carbon black and silica; and a vulcanization system. The invention also relates to rubber articles comprising a composition according to the invention, in particular pneumatic tyres, at least one sidewall of which comprises a composition according to the invention.
COMPOSITION DE CAOUTCHOUC COMPRENANT UN ÉLASTOMÈRE DIÉNIQUE FORTEMENT SATURÉ
RUBBER COMPOSITION COMPRISING A HIGHLY SATURATED DIENE ELASTOMER
KAUTSCHUKZUSAMMENSETZUNG MIT EINEM HOCHGESÄTTIGTEN DIENELASTOMER
2025-04-30
Patent
Electronic Resource
French
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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