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    • 1. 发明授权
    • Rubber composition and tire
    • 橡胶组合物和轮胎
    • US06787595B1
    • 2004-09-07
    • US09695317
    • 2000-10-25
    • Hiroshi YamadaYuichiro Nakamura
    • Hiroshi YamadaYuichiro Nakamura
    • C08K304
    • C08K3/04C08K5/25Y10T152/10495C08L21/00
    • A first object of the present invention is to provide a rubber composition which improves both wear resistance and low heat-buildup property, and a second object is to provide a tire in which low heat-buildup property (low fuel consumption) and tear resistance are improved without impairing wear resistance. In order to achieve the first object, a first aspect of the present invention is a rubber composition comprising a rubber component selected from at least one of natural rubber and a diene-based synthetic rubber, and a carbon black. The carbon black has a dibutyl phthalate absorption amount (DBP) of 140 to 200 ml/ 100 g. An aggregate of the carbon black has a ratio (Dw/Dn) of weight average diameter (Dw) to number average diameter (Dn) of 1.80 to 2.40, and the carbon black has a specific tinting strength (Tint) satisfying an inequality: Tint ≧0.100× nitrogen absorption specific surface area (N2SA)+93. In order to achieve the second object, a second aspect of the present invention is a tire which has at least a tread, and the tread is made of the rubber composition of the first aspect of the invention.
    • 本发明的第一个目的是提供一种提高耐磨性和低发热性的橡胶组合物,第二个目的是提供一种轮胎,其低发热性(低燃料消耗)和抗撕裂性是 改进而不损害耐磨性。 为了实现第一目的,本发明的第一方面是一种橡胶组合物,其包含选自天然橡胶和二烯系合成橡胶中的至少一种的橡胶成分和炭黑。 炭黑的邻苯二甲酸二丁酯吸收量(DBP)为140〜200ml / 100g。 炭黑的聚集体的重均粒径(Dw)与数均粒径(Dn)的比(Dw / Dn)为1.80〜2.40,炭黑具有满足不等式的特定着色强度(Tint):Tint > = 0.100x氮吸收比表面积(N2SA)+93。 为了实现第二目的,本发明的第二方面是至少具有胎面的轮胎,并且胎面由本发明的第一方面的橡胶组合物制成。