RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE

• Main Author: NISHIKAWA YUMA
• Format: Patent
• Language: English; Japanese
• Published: 09.07.2020
• 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 improve wet grip performance while suppressing deterioration in low heat build-up performance.SOLUTION: A rubber composition for tires according to an embodiment contains 1-50 pts.mass of a partially hydrogenated polystyrene resin based on 100 pts.mass of a diene rubber component containing a styrene-butadiene rubber. A pneumatic tire according to an embodiment is manufactured using the rubber composition for tires.SELECTED DRAWING: None 【課題】低発熱性能の悪化を抑えながらウェットグリップ性能を向上する。【解決手段】実施形態に係るタイヤ用ゴム組成物は、スチレンブタジエンゴムを含むジエン系ゴム成分１００質量部に対して、部分水添ポリスチレン樹脂１〜５０質量部を含むものである。また、実施形態に係る空気入りタイヤは、該タイヤ用ゴム組成物を用いて作製されたものである。【選択図】なし