METHOD FOR PRODUCING RUBBER COMPOSITION, RUBBER COMPOSITION, AND TIRE

    公开(公告)号:US20170313862A1

    公开(公告)日:2017-11-02

    申请号:US15522145

    申请日:2015-10-23

    发明人: Yasushi YAMAGISHI

    IPC分类号: C08L9/08 B60C1/00 C08J3/20

    摘要: Provided is a method for producing a rubber composition containing: a rubber component (A) including at least 50 mass % of a styrene-butadiene copolymer rubber; a filler (B) including 80-130 parts by mass of silica; a silane coupling agent (C); a thermoplastic resin (D); at least one compound (E) selected from guanidines, sulfenamides, and thiazoles; an organic acid compound (F); and a vulcanizing agent (G). The method includes kneading the rubber composition over a plurality of stages. The kneading includes: a first kneading stage of kneading the rubber component (A), the filler (B), the silane coupling agent (C), the thermoplastic resin (D), all or some of the compound (E), and all or some of the organic acid compound (F); and a second kneading stage of, after the first kneading stage, kneading the vulcanizing agent (G) and a kneaded product prepared through kneading in the first kneading stage.