Rubber composition and tire

• Main Authors: STEINER PETER P, DELVILLE JEROME JOEL DANIEL, MILAN MARIE-LAURE SUZANNE
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: 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

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。