PROBLEM TO BE SOLVED: To provide a method for kneading a rubber composition, in the kneading of a rubber composition including an epoxidation natural rubber in the rubber components, capable of improving the dispersion of carbon black, and a method for producing a pneumatic tire for producing a pneumatic tire in which tear resistant performance is sufficiently secured using the rubber composition.SOLUTION: Provided is a method for kneading a rubber composition containing epoxidation natural rubber in the rubber components, comprising: a first kneading step where the rubber component other than the epoxidation natural rubber and carbon black are kneaded to produce a kneaded matter 1; a second kneading step where the kneaded matter 2 obtained in the first kneading step and the epoxidation natural rubber are kneaded to produce a kneaded matter 2; and a finish kneading step where the kneaded matter 2 obtained in the second kneading step, sulfur and a vulcanization accelerator are kneaded to produce a rubber composition. Also provided is a method for kneading a rubber composition in which the rubber components are composed of an epoxidation natural rubber and a natural rubber.SELECTED DRAWING: None

    【課題】エポキシ化天然ゴムをゴム成分に含むゴム組成物の混練において、カーボンブラックの分散を向上させることができるゴム組成物の混練方法、および前記ゴム組成物を用いて耐裂性能が十分に確保された空気入りタイヤを製造する空気入りタイヤの製造方法を提供する。【解決手段】エポキシ化天然ゴムをゴム成分に含むゴム組成物の混練方法であって、エポキシ化天然ゴム以外のゴム成分とカーボンブラックとを混練して混練物1を作製する第1混練工程と、第1混練工程で得られた混練物1とエポキシ化天然ゴムとを混練して混練物2を作製する第2混練工程と、第2混練工程で得られた混練物2と硫黄および加硫促進剤とを混練してゴム組成物を作製する仕上げ混練工程とを備えているゴム組成物の混練方法。ゴム成分がエポキシ化天然ゴムと天然ゴムとにより構成されているゴム組成物の混練方法。【選択図】なし


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    Title :

    METHOD FOR KNEADING RUBBER COMPOSITION AND METHOD FOR PRODUCING PNEUMATIC TIRE


    Additional title:

    ゴム組成物の混練方法および空気入りタイヤの製造方法


    Contributors:

    Publication date :

    2016-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08J Verarbeitung , WORKING-UP / 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




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