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    • 1. 发明公开
    • Rubber composition and pneumatic tire
    • 橡胶成分和充气轮胎
    • EP2174801A3
    • 2010-12-29
    • EP09009383.2
    • 2009-07-20
    • Sumitomo Rubber Industries, Ltd.
    • Uesaka, KenichiMatsuo, Toshiro
    • B60C1/00C08K3/36C08K5/544C08K13/02C08K5/098C08K5/00
    • C08L7/00B60C1/0016B60C1/0025C08K3/36C08K5/098C08L15/00C08L2666/08
    • The present invention has its object to provide a rubber composition having excellent low-exothermic property and high strength together, and a pneumatic tire produced using the rubber composition. The present invention relates to a rubber composition which contains a rubber component and 10 to 150 parts by mass of silica per 100 parts by mass of the rubber component. The rubber component contains a butadiene rubber modified by a compound represented by the formula (1):

      wherein, R 1 , R 2 and R 3 are the same or different and independently represent an alkyl group, an alkoxy group, a silyloxy group, an acetal group, a carboxyl group, a mercapto group, or a derivative thereof; R 4 and R 5 are the same or different and independently represent a hydrogen atom or an alkyl group; and n represents an integer.
    • 本发明的目的是提供一起具有优异的低发热性和高强度的橡胶组合物,以及使用该橡胶组合物制造的充气轮胎。 本发明涉及一种橡胶组合物,其相对于橡胶成分100质量份含有橡胶成分和10〜150质量份的二氧化硅。 橡胶组分含有由式(1)表示的化合物改性的丁二烯橡胶:其中,R1,R2和R3相同或不同,并且独立地表示烷基,烷氧基,甲硅烷氧基,缩醛基, 羧基,巯基或其衍生物; R4和R5相同或不同,并且独立地表示氢原子或烷基; 并且n代表整数。
    • 2. 发明公开
    • Rubber composition for tyre sidewall and tyre
    • Kautschukruischung轮胎壁和轮胎
    • EP0803535A3
    • 1998-04-01
    • EP97302717.0
    • 1997-04-21
    • Sumitomo Rubber Industries Ltd.
    • Matsuo, Toshiro
    • C08L21/00C08K3/04C08K3/36B60C1/00
    • C08K3/36B60C1/0025C08K3/04C08K5/5406Y02T10/862C08L21/00
    • A rubber composition obtained by mixing 100 parts by weight of at least one diene rubber selected from a group consisting of natural rubber, butadiene rubber, styrene-butadiene rubber, isoprene rubber and ethylene-propylene-diene terpolymer, characterised by:
      5 to 50 parts by weight of a carbon black having an average particle size of primary particle of not less than 20 nm, a compression DBP oil absorption number of not more than 120 mℓ/100 g and a CTAB specific surface area of not more than 130 m 2 /g, 10 to 60 parts by weight of a precipitated silica having a DBP oil absorption number of not less than 200 mℓ/100g, a BET nitrogen adsorption specific surface area of not more than 180 m 2 /g, and a silane coupling agent in an amount in the range represented by equation (1) in the case where C=2.6 to 5.1: X = A × B × 10 18 × D E × C × 100 wherein X is a maximum amount of the silane coupling agent (unit is parts by weight) per 100 parts by weight of the precipitated silica, A is the number (unit is per nm 2 ) of silanol groups existing per 1 nm 2 of surface area of the precipitated silica, B is BET nitrogen adsorption specific area (unit is m 2 /g) of the precipitated silica, C is a factor showing reactivity of the silane coupling agent to the precipitated silica, D is a molecular weight of the silane coupling agent, E is Avogadro's constant (6.022 x 10 23 ).
    • 5. 发明公开
    • Rubber composition and tire comprising the same
    • Kautschukzusammensetzung und diese enthaltender Reifen
    • EP1652878A1
    • 2006-05-03
    • EP05020725.7
    • 2005-09-22
    • SUMITOMO RUBBER INDUSTRIES, LTD.
    • Kunisawa, TetsuyaMatsuo, ToshiroHoriguchi, TakuyaNakamura, Takashi
    • C08K3/04C08K3/36C08L9/06
    • C08L9/06C08K3/013C08K5/548C08L7/00C08L9/00C08L21/00C08L45/00C08L2666/02
    • The present invention provides a rubber composition which is improved in grip performance, grip durability and abrasion resistance with a highly good balance and a tire comprising the same. The present invention relates to a rubber composition comprising 50 to 120 parts by weight of a reinforcing agent containing particular carbon black and 10 to 100 parts by weight of silica based on 100 parts by weight of a diene rubber, 2 to 50 parts by weight of a styrene-butadiene polymer, in which weight average molecular weight is 1,000 to 15,000, the amount of a styrene is 17 to 27 % by weight and the amount of vinyl is 60 to 80 % by weight, and 2 to 25 parts by weight of an indene resin, in which the melting point is 100 to 150°C, based on 100 parts by weight of a diene rubber comprising at least 60 % by weight of a particular solution polymerization styrene-butadiene rubber and at most 40 % by weight of a natural rubber and/or a butadiene rubber, and a tire having a tread comprising the same.
    • 本发明提供了一种橡胶组合物,该橡胶组合物具有高的良好平衡性,并且具有这样的轮胎的抓地性能,抓地耐久性和耐磨性得到改善。 本发明涉及一种橡胶组合物,其包含50至120重量份的含有特定炭黑的增强剂和基于100重量份二烯橡胶的10至100重量份的二氧化硅,2至50重量份的 苯乙烯 - 丁二烯聚合物,其中重均分子量为1,000至15,000,苯乙烯的量为17至27重量%,乙烯基的量为60至80重量%,和2至25重量份的 基于100重量份的包含至少60重量%的特定溶液聚合苯乙烯 - 丁二烯橡胶和至多40重量%的二烯橡胶的二烯橡胶,其中熔点为100至150℃的茚树脂, 天然橡胶和/或丁二烯橡胶,以及具有包含该胎面的胎面的轮胎。
    • 9. 发明公开
    • Pneumatic tire
    • 充气轮胎
    • EP2014488A1
    • 2009-01-14
    • EP08010076.1
    • 2008-06-02
    • SUMITOMO RUBBER INDUSTRIES, LTD.
    • Kunisawa, TetsuyaNakadera, KeiichiIizuka, ToruWada, TakaoMiyazaki, ShinichiMatsuo, Toshiro
    • B60C19/08
    • B60C19/082B60C19/08B60C19/086B60C19/088
    • A pneumatic tire capable of reducing rolling resistance and discharging static electricity generated during running, wherein each of a tread rubber, a breaker rubber, and a sidewall rubber formed on the tread part, the breaker part, and the sidewall part, respectively, has a volume specific resistivity of 1 × 10 8 Ω·cm or more, the pneumatic tire further including a conduction rubber embedded in the tread part so as to be at least partially exposed to a surface of the tread part, bead part rubber disposed at a region contacting a rim flange of the bead part, and electroconductive rubber electrically connecting the conduction rubber (6) to the beat part rubber, wherein each of the conduction rubber, the bead part rubber, and the electroconductive rubber has a volume specific resistivity of less than 10 8 Ω·cm.
    • 本发明提供一种充气轮胎,该充气轮胎能够降低滚动阻力并且释放行驶期间产生的静电,其中分别形成在胎面部分,断路器部分和侧壁部分上的胎面胶,断路器橡胶和胎侧胶分别具有 体积电阻率为1×10 8Ω·cm以上,所述充气轮胎还包括嵌入所述胎面部中以至少部分地暴露于所述胎面部的表面的导电橡胶,设置在接触区域 所述胎圈部的轮辋凸缘以及将所述传导橡胶(6)电连接到所述拍部橡胶上的导电橡胶,其中所述传导橡胶,所述胎圈部橡胶和所述导电橡胶中的每一个的体积电阻率小于108 Ω·cm的。