A rubber composition based at least on a reinforcing filler comprising a content of silica of greater than or equal to 80 phr and on an elastomer matrix comprising a content of a modified diene elastomer of greater than or equal to 75 phr is provided. The modified diene elastomer includes macromolecules comprising, within their structure, a linear or branched polyether block comprising, at each of the two ends of the block, a branch point to which up to three diene elastomer branches and up to three —OR groups are bonded, R representing, independently of one another, a C1-C8 alkyl substituent or a hydrogen atomb—the. The copolymer is composed:of at least 20% of branched macromolecules comprising a polyether block to which at least three diene elastomer blocks are bonded,of at most 80% of linear macromolecules, andd—each of the branch points includes a silicon atom.
RUBBER COMPOSITION BASED ON A MODIFIED DIENE ELASTOMER
28.04.2022
Patent
Elektronische Ressource
Englisch
IPC: | C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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