RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition for a tire excellent in silica dispersibility and scorch property.SOLUTION: There is provided a rubber composition for a tire which comprises: a diene-based rubber (A); silica (B); a silane coupling agent (C) having a thiol group and/or a thiol ester group; and lecithin (D), wherein the content of the silica (B) is 5 to 150 pts.mass based on 100 pts.mass of the diene-based rubber, the content of the silane coupling agent (C) is 0.5 to 20 mass% based on the content of the silica (B) and the content of the lecithin (D) is 0.5 to 20 mass% based on the content of the silica (B).