TIRE RUBBER COMPOSITION AND TIRE

• Main Author: WATANABE KENYA
• Format: Patent
• Language: English; Japanese
• Published: 21.01.2022
• 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

To provide a tire rubber composition that can improve high-speed turning performance on a wet road surface.SOLUTION: A tire rubber composition contains a rubber component including styrene-butadiene rubber and butadiene rubber, a filler including silica, and a silane coupling agent. Relative to the rubber component 100 pts.mass, the content of the silica is 90 pts.mass or more. The silane coupling agent contains an organic silicon compound including alkoxysilyl groups and sulfur atoms, where, carbon atoms connecting the alkoxysilyl groups and sulfur atoms are 6 or more in number.SELECTED DRAWING: None 【課題】ウェット路面における高速旋回性能を向上するタイヤ用ゴム組成物を提供する。【解決手段】スチレンブタジエンゴム及びブタジエンゴムを含むゴム成分と、シリカを含む充填材と、シランカップリング剤とを含み、前記ゴム成分１００質量部に対する前記シリカの含有量が９０質量部以上であり、前記シランカップリング剤は、アルコキシシリル基及び硫黄原子を含み、かつアルコキシシリル基及び硫黄原子を連結する炭素原子の数が６個以上である有機珪素化合物を含むタイヤ用ゴム組成物。【選択図】なし