Patent ID: 10040927

Abstract:
A rubber composition for tires according to the present technology comprises: a natural rubber, a diene-based blended rubber containing a solution-polymerized SBR and an emulsion-polymerized SBR, an aromatic modified terpene resin, a silica, and a carbon black. The solution-polymerized SBR contains a specific solution-polymerized SBR having a block containing an isoprene unit at one terminal thereof and a modified terminal for silica at the other terminal thereof. The styrene unit content in the emulsion-polymerized SBR is from 35 to 50 mass %. The content of the natural rubber and the total content of the solution-polymerized SBR and the emulsion-polymerized SBR in the diene-based blended rubber are specified, and the contents of aromatic modified terpene resin, the silica, and the carbon black relative to the content of the diene-based blended rubber are specified.