| abstract |
(57) Abstract: A silica-filled rubber for producing a silica-filled rubber in which silica is highly dispersed in a rubber such as SBR with high productivity without requiring any special operation such as mechanical kneading. And a method for producing the same. A mixed solution of a rubber latex and silica and a cationic compound are mixed and co-coagulated. On this occasion, As the silica, it is preferable to use wet silica as an aqueous suspension. In this case, the resulting wet silica is obtained in a slurry state or a wet cake state which has not been subjected to a drying step, and the aqueous dispersion is adjusted using the slurry. Is preferred. |