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    • 9. 发明授权
    • Rubber composition for tire tread and pneumatic tire using the rubber composition
    • 用于轮胎胎面的橡胶组合物和使用该橡胶组合物的充气轮胎
    • US07045567B2
    • 2006-05-16
    • US10863345
    • 2004-06-09
    • Noriko YagiKiyoshige MuraokaToshiaki SakakiKazuyuki Nishioka
    • Noriko YagiKiyoshige MuraokaToshiaki SakakiKazuyuki Nishioka
    • C08K3/34
    • C08K3/04B60C1/0016C08K3/36C08L7/02Y10S528/93Y10S528/932C08L2666/08
    • The present invention provides a rubber composition that improves processability and fuel efficiency without decreasing mechanical strength and abrasion resistance, which are excellent properties of natural rubber, and a pneumatic tire using the rubber composition for a tire tread. Specifically, the present invention provides a rubber composition for a tire tread comprising 5 to 150 parts by weight of silica having nitrogen-adsorbing specific surface area of 100 to 300 m2/g and/or 5 to 150 parts by weight of carbon black having nitrogen-adsorbing specific surface area of at least 70 m2/g and dibutyl phthalate oil absorption of at least 70 ml/100 g, based on 100 parts of a rubber component containing 5 to 100% by weight of a deproteinized natural rubber having a weight average molecular weight of 1,400,000 and nitrogen content of at most 0.1% by weight, and a pneumatic tire comprising the rubber composition for a tire tread.
    • 本发明提供一种改善加工性和燃料效率而不降低机械强度和耐磨性的橡胶组合物,其是天然橡胶的优异性能,以及使用轮胎胎面用橡胶组合物的充气轮胎。 具体地说,本发明提供一种轮胎胎面用橡胶组合物,其特征在于,具有5〜150重量份的氮吸附比表面积为100〜300m 2 / g的二氧化硅和/或5〜150 基于100份橡胶组分,具有至少70m 2 / g的氮吸附比表面积的碳黑的重量份和邻苯二甲酸二丁酯油的吸收至少为70ml / 100g, 含有5〜100重量%的重均分子量为1400万,氮含量在0.1重量%以下的脱蛋白天然橡胶,以及包含轮胎胎面用橡胶组合物的充气轮胎。