| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a silica-containing rubber master batch capable of excellently satisfying both of rolling resistance performance and wet performance. <P>SOLUTION: There is provided a silica-containing rubber master batch provided by drying a mixture liquid provided by mixing a latex of a diene-based resin (A) having ≥-80°C but ≤-55°C glass transition point, a latex of a diene-based rubber (B) having >-55°C but ≤-30°C glass transition point, an oil, and a silica slurry provided by dispersing silica in water, wherein the content of the diene based rubber (A) is 5-30 mass% based on the dry mass ratio to the whole rubber components, the content of the diene-based rubber (B) is 70-95 mass% based on the dry mass ratio to the whole rubber components, the content of the oil is 3-20 pts.mass based on 100 pts.mass whole rubber components and the content of the silica is 20-200 pts.mass based on 100 pts.mass whole rubber components. <P>COPYRIGHT: (C)2013,JPO&INPIT |
