TRUCK AND BUS TIRE

• Main Authors: HONDA SHINICHIRO, NISHIOKA KAZUYUKI, NAGAE AKINORI
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2015
• 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; TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a truck and bus tire comprising a cap tread comprising a rubber composition having improved fuel economy, fracture strength, wear resistance, and wet grip performance in a balanced manner.SOLUTION: This invention relates to a truck and bus tire comprising a cap tread comprising a rubber composition comprising a rubber component, silica, and conductive carbon black, wherein in the rubber component 100 mass%, the content of a conjugated diene polymer having a specific monomer unit 5 is mass% or more, and based on the rubber component 100 pts.mass, the content of the silica is 5-150 pts.mass. 【課題】低燃費性、耐破壊強度、耐摩耗性、及びウェットグリップ性能をバランス良く改善できるゴム組成物で構成されるキャップトレッドを備えるトラック・バスタイヤを提供する。【解決手段】ゴム成分と、シリカと、導電性カーボンブラックとを含有し、前記ゴム成分１００質量％中、特定の単量体単位を有する共役ジエン系重合体の含有量が５質量％以上であり、前記ゴム成分１００質量部に対する前記シリカの含有量が５〜１５０質量部であるゴム組成物で構成されるキャップトレッドを備えるトラック・バスタイヤに関する。【選択図】なし