A rubber composition and a tire comprising such a rubber composition is disclosed. The rubber composition comprises, based on parts by weight per 100 parts by weight elastomer (phr):(A) conjugated diene-based elastomers comprising:(1) from 25 to 60 phr of a styrene/butadiene elastomer (SBR) extended with vegetable triglyceride oil, preferably of 25 to 60 phr of a solution polymerized styrene/butadiene elastomer (SSBR) extended with vegetable triglyceride oil, wherein said SBR or said SSBR respectively has a Tg in a range of from -20°C to +10°C and has a bound styrene content in a range of from 25 to 50 percent;(2) from 75 to 40 phr of at least one additional conjugated diene-based elastomer comprising at least one of polybutadiene and cis 1,4-polyisoprene rubber or natural rubber;(B) 50 to 200 phr of a reinforcing filler comprising (i) silica, preferably precipitated silica, or (ii) a combination of carbon black and silica, preferably precipitated silica; wherein said reinforcing filler further contains a silica coupler for said silica having a moiety reactive with hydroxyl groups on said silica and another different moiety interactive with said diene-based elastomers; and(C) 5 to 50 phr, alternatively from 20 to 35 phr, of a resin comprising at least one of styrene/alphamethylstyrene copolymer resin, terpene-phenol resin, coumarone-indene resin, petroleum hydrocarbon resin, terpene polymer resin, rosin derived resin, modified rosin acid resin, and styrene/alphamethylstyrene resin.
RUBBER COMPOSITION AND TIRE CONTAINING VEGETABLE OIL EXTENDED STYRENE/BUTADIENE ELASTOMER AND RESIN
KAUTSCHUKZUSAMMENSETZUNG UND REIFEN MIT PFLANZENÖLGESTRECKTEM STYROL-/BUTADIENELASTOMER UND HARZ
COMPOSITION DE CAOUTCHOUC ET PNEUMATIQUE CONTENANT UN ÉLASTOMÈRE DE STYRÈNE/BUTADIÈNE ÉTENDU À L'HUILE VÉGÉTALE ET RÉSINE
2023-09-13
Patent
Elektronische Ressource
Englisch
IPC: | 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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