Rubber composition and tire

A rubber composition for a tire tread is disclosed. The rubber composition comprises 30 to 80 phr of a first styrene butadiene rubber having a glass transition temperature of less than-50 DEG C; 10 to 40 phr of a second styrene butadiene rubber having a glass transition temperature higher than-45 DE...

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Bibliographische Detailangaben
Hauptverfasser:	STEINER PETER P, DELVILLE JEROME JOEL DANIEL, MILAN MARIE-LAURE SUZANNE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A rubber composition for a tire tread is disclosed. The rubber composition comprises 30 to 80 phr of a first styrene butadiene rubber having a glass transition temperature of less than-50 DEG C; 10 to 40 phr of a second styrene butadiene rubber having a glass transition temperature higher than-45 DEG C; 10 to 30 phr of a further rubber selected from the group consisting of polyisoprene, synthetic polyisoprene, natural rubber and polybutadiene rubber; from 80 phr to 140 phr of silica; and from 40 phr to 90 phr of a hydrocarbon resin having a glass transition temperature of at least 30 DEG C and selected from one or more of C5 resins and C5/C9 resins. 公开了用于轮胎胎面的橡胶组合物。该橡胶组合物包含30至80phr的具有低于-50℃的玻璃化转变温度的第一苯乙烯丁二烯橡胶；10至40phr的具有高于-45℃的玻璃化转变温度的第二苯乙烯丁二烯橡胶；10至30phr的选自聚异戊二烯、合成聚异戊二烯、天然橡胶和聚丁二烯橡胶的列举的其它橡胶；80phr至140phr的二氧化硅；和40phr至90phr的烃树脂，所述烃树脂具有至少30℃的玻璃化转变温度并选自C5树脂和C5/C9树脂中的一种或多种。