PROBLEM TO BE SOLVED: To provide a rubber composition having excellent tear strength.SOLUTION: The rubber composition contains: a rubber component; and an additive containing a tetrazine compound represented by general formula (1) [where Xand Xare the same or different and each represent an optionally substituted heterocyclic group] or a salt thereof. A styrene-butadiene copolymer rubber is contained in an amount of 30 pts.mass or more in 100 pts.mass of the rubber component. The styrene-butadiene copolymer rubber is obtained by mixing a solution-polymerized styrene-butadiene copolymer rubber and an emulsion-polymerized styrene-butadiene copolymer rubber at a mass ratio of 10-90:90-10.SELECTED DRAWING: None
【課題】優れた引裂き強度を有するゴム組成物を提供すること。【解決手段】ゴム成分、下記一般式(1):[式中、X1及びX2は、同一又は異なって、置換基を有していてもよい複素環基を示す。]で表されるテトラジン化合物又はその塩を含む添加剤を含有するゴム組成物であって、前記ゴム成分100質量部中にスチレンブタジエン共重合体ゴムが30質量部以上含まれ、該スチレンブタジエン共重合体ゴムが、溶液重合スチレンブタジエン共重合体ゴムと乳化重合スチレンブタジエン共重合体ゴムとを10〜90:90〜10の質量比で混合したものである、ゴム組成物。【選択図】なし
RUBBER COMPOSITION EXCELLENT IN TEAR STRENGTH
引裂き強度に優れたゴム組成物
2018-09-27
Patent
Elektronische Ressource
Japanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS , Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / F16F SPRINGS , Federn |
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