Provided is a rubber composition comprising an inorganic filler, a compound having at least one group A reacting with a rubber and two or more groups B adsorbing on the inorganic filler described above in the same molecule, a compound having the group A reacting with a rubber and an amino group in the same molecule or acrylate or methacrylate having a specific structure and further comprising, if necessary, a silane coupling agent. This makes it possible to provide a rubber composition which is excellent in the dispersibility of an inorganic filler, so that it does not elevate a viscosity of a non-vulcanized rubber and does not damage the processability and which does not bring about roughening on the surface of a rubber and is improved in a storage modulus.
本发明提供了一种橡胶组合物,该组合物包括一种无机填料、一种在同一分子中至少具有一个与橡胶反应的基团 A 和两个或多个吸附在上述无机填料上的基团 B 的化合物、一种在同一分子中具有与橡胶反应的基团 A 和
氨基的化合物或具有特定结构的
丙烯酸酯或
甲基丙烯酸酯,必要时还包括
硅烷偶联剂。这样就可以提供一种无机填料分散性极佳的橡胶组合物,它不会提高非
硫化橡胶的粘度,不会破坏加工性能,不会使橡胶表面粗糙化,并能提高储存模量。