A rubber composition for use in a tire tread is disclosed. The rubber composition comprises, based on parts by weight per 100 parts by weight elastomer (phr): (A) 100 phr of conjugated diene-based elastomers comprising: (1) of from 50 phr to 10 phr of a cis 1,4-polybutadiene rubber having a Tg in a range of from -90°C to -110°C and an isomeric cis 1,4-content of at least 95 percent; (2) of from 50 to 90 phr of styrene/butadiene elastomer having a Tg in a range of from -65°C to -55°C; (B) 100 to 200 phr of a rubber reinforcing filler comprising carbon black and silica together with a silica coupling agent for the silica having a moiety reactive with hydroxyl groups on the silica and another different moiety interactive with the diene-based elastomers; and (C) of from 30 to 70 phr of a traction promoting resin having a softening point (Sp) in a range of from 110°C to 170°C comprising at least one of a styrene-alphamethylstyrene copolymer resin having a softening point in a range of from 110°C to 130°C, a terpene-phenol resin having a softening point in a range of from 120°C to 170°C, one or more coumarone-indene resins having a softening point in a range of from 110°C to 170°C, one or more petroleum hydrocarbon resins having a softening point in a range of from 110°C to 170°C, one or more terpene polymer resins having a softening point in a range of from 110°C to 170°C and one or more rosin derived resins and copolymers and copolymers having a softening point in a range of from 110°C to 170°C.
RUBBER COMPOSITION AND TIRE WITH TREAD FOR LOW TEMPERATURE PERFORMANCE AND WET TRACTION
GUMMIZUSAMMENSETZUNG UND REIFEN MIT LAUFFLÄCHE FÜR NIEDRIGTEMPERATURLEISTUNG UND NASSTRAKTION
COMPOSITION DE CAOUTCHOUC ET PNEU AYANT UNE BANDE DE ROULEMENT À PERFORMANCE BASSE TEMPÉRATURE ET TRACTION HUMIDE
23.06.2021
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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