申请人:Bridgestone Corporation
公开号:EP3006496A1
公开(公告)日:2016-04-13
The present invention provides a tire rubber composition prepared by mixing at least one rubber component selected from natural rubbers and synthetic diene rubbers (A), a filler including an inorganic filler (B), a silane coupling agent (C) and a thiosemicarbazone derivative (D), and provides a production method for a tire rubber composition, wherein the tire rubber composition is kneaded in plural stages, and in the first stage of kneading, the rubber component (A), all or part of the inorganic filler (B), all or part of the silane coupling agent (C), and the thiosemicarbazone derivative (D) are kneaded, therefore providing a tire rubber composition having improved reactivity between the coupling agent and the rubber component and excellent in low-heat-generation property and a production method for the composition.
本发明提供了一种通过混合至少一种选自天然橡胶和合成二烯橡胶的橡胶组分(A)、包括无机填料(B)在内的填料、硅烷偶联剂(C)和硫代氨基脲衍生物(D)制备的轮胎橡胶组合物,并提供了一种轮胎橡胶组合物的生产方法,其中轮胎橡胶组合物经过多个阶段的捏合、在第一阶段捏合过程中,捏合橡胶成分(A)、全部或部分无机填料(B)、全部或部分硅烷偶联剂(C)和硫代氨基脲衍生物(D),从而提供一种轮胎橡胶组合物,该组合物具有更好的偶联剂与橡胶成分之间的反应性和优异的低发热性能,并提供一种该组合物的生产方法。