RUBBER COMPOSITION FOR BASE PART

• Main Author: NAGAI HARUKA
• Format: Patent
• Language: English; Japanese
• Published: 27.10.2022
• 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 rubber composition for a base part improved in cut resistance, and a solid tire using the rubber composition in a base part.SOLUTION: The rubber composition for a base part contains a diene rubber component, microfibers, and carbon black having an average particle diameter of 30 nm or more. The diene rubber component contains an isoprene rubber, a butadiene rubber and a styrene-butadiene rubber. The ratio of the maximum value to the minimum value of fiber diameters of the microfibers is 1.2 or more.SELECTED DRAWING: None 【課題】耐カット性能が改善されたベース部用ゴム組成物および該ゴム組成物をベース部に用いたソリッドタイヤを提供すること。【解決手段】ジエン系ゴム成分、ミクロ繊維、および平均粒子径が３０ｎｍ以上のカーボンブラックを含有するベース部用ゴム組成物であって、前記ジエン系ゴム成分が、イソプレン系ゴム、ブタジエンゴム、およびスチレンブタジエンゴムを含み、前記ミクロ繊維の繊維径の最小値に対する最大値の比が１．２以上であるゴム組成物。【選択図】なし