To provide a method for producing a rubber composition for a tire having excellent various physical properties, especially having excellent tensile characteristics with less carbon fiber content.SOLUTION: There is provided a method for producing a rubber composition for a tire which comprises: a 1-1 step of preparing a mixture of a carbon fiber (a), 1,3-butadiene and an inactive organic solvent; a 1-2 step of adding a catalyst comprising water, an organoaluminium compound and a soluble cobalt compound or a catalyst comprising an organoaluminium compound, a nickel compound and a fluorine compound to the mixture prepared in the 1-1 step, followed by subjecting the 1,3-butadiene to cis-1,4-polymerization; a 1-3 step of subjecting the 1,3-butadiene in the polymerization reaction mixture obtained in the 1-2 step to syndiotactic-1,2-polymerization; and a step of mixing a carbon fiber-containing polybutadiene composition obtained through the 1-3 step, other diene-based rubber and a rubber-reinforcing material.SELECTED DRAWING: None

    【課題】少ない炭素繊維含有量で優れた諸物性、特に優れた引張特性を有するタイヤ用ゴム組成物の製造方法を提供する。【解決手段】本発明のタイヤ用ゴム組成物の製造方法は、炭素繊維(a)と、1,3−ブタジエンと、不活性有機溶媒との混合物を調製する第1−1工程と、前記第1−1工程で調製された前記混合物に水、有機アルミニウム化合物及び可溶性コバルト化合物からなる触媒、又は、有機アルミニウム化合物、ニッケル化合物及びフッ素化合物からなる触媒を添加して、前記1,3−ブタジエンをシス−1,4重合する第1−2工程と、前記第1−2工程で得られた重合反応混合物中の前記1,3−ブタジエンをシンジオタクチック−1,2重合する第1−3工程と、前記第1−3工程を経て得られた炭素繊維含有ポリブタジエン組成物と、他のジエン系ゴムと、ゴム補強材を配合する工程と、を有することを特徴とする。【選択図】なし


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    METHOD FOR PRODUCING RUBBER COMPOSITION FOR TIRE, RUBBER COMPOSITION FOR TIRE AND TIRE


    Weitere Titelangaben:

    タイヤ用ゴム組成物の製造方法、タイヤ用ゴム組成物及びタイヤ


    Beteiligte:
    HARUTA ATSUSHI (Autor:in)

    Erscheinungsdatum :

    2020-07-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



    METHOD FOR PRODUCING TIRE RUBBER COMPOSITION, TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE

    UCHIDA AYANA | Europäisches Patentamt | 2023

    Freier Zugriff

    METHOD FOR PRODUCING TIRE RUBBER COMPOSITION, RUBBER COMPOSITION AND TIRE

    IZUMO SUGURU | Europäisches Patentamt | 2017

    Freier Zugriff

    RUBBER COMPOSITION FOR TIRE, METHOD FOR PRODUCING RUBBER COMPOSITION FOR TIRE, AND TIRE

    MATSUMOTO NORIHIRO | Europäisches Patentamt | 2018

    Freier Zugriff

    RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE, RUBBER COMPOSITION FOR TIRE TREAD, CROSSLINKED RUBBER FOR TIRE, TIRE TREAD, AND TIRE

    HAMATANI SATOSHI / ISHIBASHI KENTA / KAWAHARA HISAHO | Europäisches Patentamt | 2021

    Freier Zugriff

    RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE, RUBBER COMPOSITION FOR TIRE TREAD, CROSSLINKED RUBBER FOR TIRE, TIRE TREAD, AND TIRE

    HAMATANI SATOSHI / ISHIBASHI KENTA / KAWAHARA HISAHO | Europäisches Patentamt | 2021

    Freier Zugriff