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    • 2. 发明专利
    • Rubber composition for tread and pneumatic tire
    • 橡胶组合物用于铁和轮胎
    • JP2010285545A
    • 2010-12-24
    • JP2009140484
    • 2009-06-11
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • ISHINO TAKASHI
    • C08L9/00B60C1/00C08K3/36C08K5/47
    • PROBLEM TO BE SOLVED: To provide a rubber composition for treads which has improved heat resistance without increasing the amount of an antioxidant while maintaining low fuel consumption performance and processability thereof, and which suppresses deterioration of rubber strength, in particular, by suppressing hardening and deterioration of rubber, and prolongs the life of the rubber, and to provide a pneumatic tire using the composition as a tread of a tire.
      SOLUTION: The rubber composition for treads contains a rubber component containing isoprene-based rubber in an amount of ≥5 mass%, silica, and benzothiazole-disulfide and/or mercapto-benzothiazole, each represented by a specified formula.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决问题:提供一种具有改善耐热性而不增加抗氧化剂量的胎面用橡胶组合物,同时保持低燃料消耗性能和加工性能,并且抑制橡胶强度的劣化,特别是通过抑制 橡胶的硬化和劣化,并延长橡胶的寿命,并提供使用该组合物作为轮胎胎面的充气轮胎。 解决方案:用于胎面的橡胶组合物含有含有≥5质量%的异戊二烯橡胶的橡胶组分,二氧化硅和苯并噻唑 - 二硫化物和/或巯基苯并噻唑,各自由特定的式表示。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Rubber composition for tire and pneumatic tire
    • 轮胎和气胎的橡胶组合物
    • JP2010260980A
    • 2010-11-18
    • JP2009113890
    • 2009-05-08
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • HATTORI TAKAYUKIKOBAYASHI MASATOSHIISHINO TAKASHI
    • C08L9/00B60C1/00C08K3/36C08K5/47
    • Y02T10/862
    • PROBLEM TO BE SOLVED: To provide a rubber composition for tires, the thermal degradation resistance of which is enhanced and particularly the performance such as the hardness of which is restrained from being changed (particularly, hardening degradation of rubber) owing to the long hour use thereof without increasing the amount of an antioxidant, the vulcanized one of which is excellent in rolling resistance properties and wear resistance, which can be vulcanized in a shortened time while keeping excellent scorch resistance and the cross-linkage efficiency of which can be enhanced and to provide a pneumatic tire each member of which is obtained by using the rubber composition for tires. SOLUTION: The rubber composition for tires contains a rubber component containing ≥25 mass% at least one kind of rubber selected from the group consisting of isoprene rubber and butadiene rubber, a specific benzothiazole compound, and a thiuram-based vulcanization accelerator of 0.1-1.3 parts mass based on 100 parts mass rubber component. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种轮胎的耐热降解性提高的特征,其特征在于,由于该橡胶组合物的耐热劣化性能受到限制(特别是橡胶的硬化降解) 长时间的使用而不增加抗硫化剂的量,其硫化的耐滚动性和耐磨性优异,可以在缩短的时间内硫化,同时保持优异的耐焦烧性和交联效率可以 并且提供了通过使用轮胎用橡胶组合物获得的每个构件的充气轮胎。 解决方案:轮胎用橡胶组合物含有含有≥25质量%的橡胶组分,选自异戊二烯橡胶和丁二烯橡胶中的至少一种橡胶,特定的苯并噻唑化合物和秋兰姆型硫化促进剂 基于100份橡胶组分的质量为0.1-1.3份。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Rubber composition for tire, and pneumatic tire
    • 轮胎用橡胶组合物及气动轮胎
    • JP2013087195A
    • 2013-05-13
    • JP2011229001
    • 2011-10-18
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • NAKAZONO TAKEOISHINO TAKASHI
    • C08L21/00C08C19/22C08K3/22C08K3/36C08K5/548C08L15/00
    • PROBLEM TO BE SOLVED: To provide a rubber composition for tires, which improves abrasion resistance while maintaining or improving good wet grip performance, and to provide a pneumatic tire using the same.SOLUTION: The rubber composition includes a rubber component, silica, a diene-based polymer, and aluminum hydroxide. The diene-based polymer is a modified diene-based polymer, obtained by reacting (A) and (B), and has a number average molecular weight of 1,000 to 100,000. The content of the diene-based polymer is 2 to 200 pts.mass to 100 pts.mass of the rubber component. (A): an active conjugated diene-based polymer which is obtained by polymerizing a conjugated diene monomer or a conjugated diene monomer and an aromatic vinyl monomer in the presence of (C), and has an alkali metal terminal. (B): a modifier having a functional group. (C): a chemical species obtained by reacting a compound represented by formula (1) and an organic alkali metal compound. In the formula (1), Rand Rare the same or different and represent hydrogen atom, branched or non-branched alkyl group, branched or non-branched aryl group, branched or non-branched alkoxy group, branched or non-branched silyloxy group, branched or non-branched acetal group, carboxyl group, mercapto group or one of their derivatives. A represents a branched or non-branched alkylene group, a branched or non-branched allylene group or one of their derivatives.
    • 要解决的问题:提供一种用于轮胎的橡胶组合物,其在保持或改善良好的湿抓地性能的同时提高耐磨性,并提供使用该橡胶组合物的充气轮胎。 解决方案:橡胶组合物包括橡胶组分,二氧化硅,二烯基聚合物和氢氧化铝。 二烯类聚合物是通过使(A)和(B)反应得到的数均分子量为1,000〜100,000的改性二烯类聚合物。 二烯系聚合物的含量为橡胶成分的2〜200质点〜100质量份。 (A):通过在(C)的存在下使共轭二烯单体或共轭二烯单体和芳香族乙烯基单体聚合而得到的具有碱金属末端的活性共轭二烯系聚合物。 (B):具有官能团的改性剂。 (C):使式(1)表示的化合物与有机碱金属化合物反应而得到的化学物质。 在式(1)中,R 1 和R 2 相同或不同,表示氢原子, 支链烷基,支链或非支链芳基,支链或非支链烷氧基,支链或非支链甲硅烷氧基,支链或非支链缩醛基,羧基,巯基或其衍生物之一。 A表示支链或非支链亚烷基,支链或非支链烯丙基或其衍生物之一。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Rubber composition for tread, and pneumatic tire
    • 橡胶组合物和气动轮胎
    • JP2011094014A
    • 2011-05-12
    • JP2009248942
    • 2009-10-29
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • ISHINO TAKASHI
    • C08L21/00B60C1/00C08K3/36C08K5/548C08K5/549C08L25/02C08L83/08
    • Y02T10/862
    • PROBLEM TO BE SOLVED: To provide a rubber composition for a tread, improving workability, rolling resistance characteristics, wet skid performance, abrasion resistance and steering stability in a good balance, and to provide a pneumatic tire having a tread produced by using the above composition.
      SOLUTION: The rubber composition for a tread contains a rubber component, an aromatic vinyl polymer, silica and a silane coupling agent which is a copolymer containing a coupling unit B expressed by general formula (2), in which the content of silica is 15 to 150 parts by mass with respect to 100 parts by mass of the rubber component. In formula (2), x and y each represents an integer of 1 or more; R
      1 represents hydrogen, halogen, branched or unbranched 1-30C alkyl or alkylene, branched or unbranched 2-30C alkenyl or alkenylene, branched or unbranced 2-30C alkynyl or alkynylene, or the alkyl or alkenyl having a terminal substituted with a hydroxy group or a carboxy group; R
      2 represents hydrogen, branched or unbranched 1-30C alkylene or alkyl, branched or unbranched 2-30C alkenylene or alkenyl, or branched or unbranded 2-30C alkynylene or alkynyl; and R
      1 and R
      2 may form together a ring structure.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种用于胎面的橡胶组合物,以良好的平衡提高加工性,滚动阻力特性,防滑性能,耐磨性和操纵稳定性,并且提供一种充气轮胎,其具有通过使用 上述组成。 解决方案:用于胎面的橡胶组合物包含橡胶组分,芳族乙烯基聚合物,二氧化硅和硅烷偶联剂,其是含有由通式(2)表示的偶联单元B的共聚物,其中二氧化硅 相对于100质量份橡胶成分为15〜150质量份。 在式(2)中,x和y各自表示1以上的整数, 支链或非支链的2-30C烯基或亚烯基,支链或非支链的2-30C炔基或亚炔基,或具有(C 1 -C 6)烷基或链烯基的烷基或链烯基, 被羟基或羧基取代的末端; R 30表示氢,支链或非支链的1-30C亚烷基或烷基,支链或非支链的2-30C亚烯基或支链或未标记的2-30C亚炔基或炔基; 和R 1 和R 2 可以一起形成环结构。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Tire rubber composition and studless tire
    • 轮胎橡胶组合物和无胎面轮胎
    • JP2014145063A
    • 2014-08-14
    • JP2013015869
    • 2013-01-30
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • KURIHARA TAKUYAISHINO TAKASHIYOKOYAMA YUKA
    • C08L9/00C08K3/36C08L7/00C08L15/00
    • Y02T10/862
    • PROBLEM TO BE SOLVED: To provide a tire rubber composition which can improve fuel economy, wear resistance and performance on ice and snow in a balanced manner, and a studless tire having a tire member formed using the same.SOLUTION: This invention relates to a tire rubber composition that contains 5-150 pts.mass of silica with respect to 100 pts.mass of rubber components. In the rubber components of 100 mass%, BR of 50-70 mass% and NR of 30-50 mass% are contained. A BR-containing phase (I) forms a continuous phase independently of a NR-containing phase (II). An amount of silica included in the phase (I) and an amount of silica included in the phase (II) fall within a predetermined range.
    • 要解决的问题:提供一种轮胎橡胶组合物,其能够以均衡的方式提高燃油经济性,耐磨性和在冰雪上的性能,以及具有使用其的轮胎构件的无钉防滑轮胎。解决方案本发明涉及 轮胎橡胶组合物,相对于100磅的橡胶组分含有5-150磅二氧化硅。 在100质量%的橡胶组分中,含有50-70质量%的BR和30-50质量%的NR。 含有BR的相(I)独立于含NR相(II)形成连续相。 包括在相(I)中的二氧化硅的量和相(II)中包含的二氧化硅的量落在预定范围内。