To provide a manufacturing method of a nitrone modified natural rubber, a manufacturing method of a rubber composition and a rubber composition, capable of improving a modification ratio of a natural rubber by a nitrone compound.SOLUTION: A manufacturing method of a nitrone modified natural rubber is configured to react a nitrone compound to a natural rubber under a presence of an organometallic compound having any of metals (however, excluding cadmium) in the fourth or fifth period of the periodic table and belonging to the seventh-twelfth groups so as to manufacture a nitrone modified natural rubber. A manufacturing method of a rubber composition is configured to mix carbon black and/or silica to the nitrone modified natural rubber. A rubber composition includes: a rubber component including a nitrone modified natural rubber in which a double bond of a natural rubber is modified by a nitrone compound and a modification ratio modified by the nitrone compound in all double bonds of the natural rubber is 0.2 mol% or more; and carbon black and/or silica.SELECTED DRAWING: None

    【課題】ニトロン化合物による天然ゴムの変性率を向上させることができる、ニトロン変性天然ゴムの製造方法、ゴム組成物の製造方法、及びゴム組成物の提供。【解決手段】天然ゴムに対して、周期表第4又は5周期でありかつ第7〜12族のうちいずれかの金属(ただしカドミウムを除く)を有する有機金属化合物の存在下で、ニトロン化合物を反応させることによって、ニトロン変性天然ゴムを製造する、ニトロン変性天然ゴムの製造方法、上記ニトロン変性天然ゴムに、カーボンブラック及び/又はシリカを混合する、ゴム組成物の製造方法、天然ゴムが有する二重結合がニトロン化合物で変性され、上記天然ゴムが有する全二重結合のうち上記ニトロン化合物によって変性された変性率が0.2モル%以上であるニトロン変性天然ゴムを含むゴム成分と、カーボンブラック及び/又はシリカとを含有する、ゴム組成物。【選択図】なし


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    Title :

    MANUFACTURING METHOD OF NITRONE MODIFIED NATURAL RUBBER, MANUFACTURING METHOD OF RUBBER COMPOSITION AND RUBBER COMPOSITION


    Additional title:

    ニトロン変性天然ゴムの製造方法、ゴム組成物の製造方法及びゴム組成物


    Contributors:

    Publication date :

    2020-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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