TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE

• Main Authors: NAKANO SHUICHI, ASHIURA MAKOTO, SUGIMOTO HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 17.08.2017
• 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

PROBLEM TO BE SOLVED: To provide a tire rubber composition that has excellent workability and makes it possible to prepare a pneumatic tire having excellent wear resistance and wet performance, and a pneumatic tire that uses the same for a tire tread.SOLUTION: A tire rubber composition has a diene rubber (A) comprising a specific conjugated diene rubber represented by a predetermined formula in a specified quantity, silica with a CTAB adsorption specific surface area in a predetermined range, and a silane coupling agent represented by a predetermined formula. There is also provided a pneumatic tire that uses the same for a tire tread.SELECTED DRAWING: Figure 1 【課題】本発明は、優れた耐摩耗性能およびウェット性能を有する空気入りタイヤを作製することができる、優れた加工性を有するタイヤ用ゴム組成物、ならびに、それをタイヤ用トレッドに用いた空気入りタイヤを提供することを課題とする。【解決手段】所定の式で表される特定共役ジエン系ゴムを所定量含有するジエン系ゴム（Ａ）と、ＣＴＡＢ吸着比表面積が所定の範囲内であるシリカと、所定の式で表されるシランカップリング剤と、を含有するタイヤ用ゴム組成物、およびそれをタイヤ用トレッドに用いた空気入りタイヤ。【選択図】図１