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    • 51. 发明专利
    • Rubber composition for tread and pneumatic tire
    • 橡胶组合物用于铁和轮胎
    • JP2014084366A
    • 2014-05-12
    • JP2012233205
    • 2012-10-22
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • HORIGUCHI TAKUYATOKIMUNE RYUICHI
    • C08L9/00B60C1/00C08F230/06C08K3/36C08L101/12
    • PROBLEM TO BE SOLVED: To provide a rubber composition for a tread capable of improving low fuel consumption properties, wet grip performance and abrasion resistance in a good balance, and to provide a pneumatic tire using the same.SOLUTION: The invention relates to a rubber composition for a tread containing a rubber component, silica and a resin having the softening point of 60 to 120°C, and having the content of a conjugated diene polymer having a monomer unit based on a compound represented by the formula, and a monomer unit based on a radical polymerizable unsaturated compound having a substituted amino group or a nitrogen-containing heterocyclic group of 5 mass% or more in 100 mass% of the rubber component, and the content of the silica of 5 to 150 pts.mass and the content of the resin of 1 to 30 pts.mass based on 100 pts.mass of the rubber component. In the formula (1), at least one of Xand Xis a substituted amino group.
    • 要解决的问题:提供一种用于胎面的橡胶组合物,其能够以良好的平衡改善低燃料消耗性能,湿抓地性能和耐磨性,并提供使用其的充气轮胎。解决方案:本发明涉及一种橡胶 含有橡胶成分的胎面用组合物,二氧化硅和软化点为60〜120℃的树脂,并且具有基于由式表示的化合物的具有单体单元的共轭二烯聚合物的含量和单体单元 基于100质量%的橡胶成分中具有5质量%以上的取代氨基或含氮杂环基的自由基聚合性不饱和化合物,二氧化硅的含量为5〜150质量份,含量 的树脂为1〜30磅,基于100重量份的橡胶组分。 在式(1)中,X 1和X 2中的至少一个是取代的氨基。
    • 54. 发明专利
    • Copolymer, rubber composition and pneumatic tire
    • 共聚物,橡胶组合物和气动轮胎
    • JP2013249419A
    • 2013-12-12
    • JP2012126534
    • 2012-06-01
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • WATANABE KENYATOKIMUNE RYUICHI
    • C08F236/04C08F8/42C08F212/08C08F212/14C08K3/36C08L15/00
    • PROBLEM TO BE SOLVED: To provide a copolymer capable of providing a rubber composition and a pneumatic tire which are improved in fuel efficiency and wet grip performance in a balanced manner.SOLUTION: A copolymer is obtained by reacting a compound represented by formula (III) and/or a silicon compound having amide group, carboxylic ester group, methacryloyl group, acryloyl group and/or oxy-dialkylene group, and alkylene oxide group with an active terminal of a copolymer obtained by polymerizing a conjugate diene compound and a specific compound having substituted amino group and nitrogen-containing heterocyclic group by use of a specific polymerization initiator having amino group and alkali metal group. The polymer has a weight average molecular weight Mw of 1.0×10-2.5×10.
    • 要解决的问题:提供能够提供以均衡方式提高燃料效率和湿抓地性能的橡胶组合物和充气轮胎的共聚物。解决方案:通过使式(III)表示的化合物与式 和/或具有酰胺基的硅化合物,羧酸酯基,甲基丙烯酰基,丙烯酰基和/或氧基 - 二亚烷基,以及具有通过使共轭二烯化合物和具体化合物聚合得到的共聚物的活性末端的烯化氧基, 取代氨基和含氮杂环基,通过使用具有氨基和碱金属基的特定聚合引发剂。 聚合物的重均分子量Mw为1.0×10 -2.5×10。
    • 56. 发明专利
    • Rubber composition and pneumatic tire
    • 橡胶组合物和气动轮胎
    • JP2013155253A
    • 2013-08-15
    • JP2012015730
    • 2012-01-27
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TOKIMUNE RYUICHIHINOHARA YUKO
    • C08L9/00B60C1/00C08F236/14C08K3/36
    • PROBLEM TO BE SOLVED: To provide a rubber composition capable of improving low-fuel consumption property, wet grip performance and wear resistance in a balanced manner, and a pneumatic tire using the same.SOLUTION: The rubber composition contains: a conjugated diene polymer (A) having a monomer unit based on a conjugated diene, a monomer unit based on a specific compound including silicon atom and amino group in a substituent, and a monomer unit based on a compound represented by formula (2); a conjugated diene polymer (B); and silica. The content of the silica relative to 100 pts.mass of the rubber component is 5-150 pts.mass.
    • 要解决的问题:提供能够平衡地改善低燃料消耗特性,湿抓地性能和耐磨性的橡胶组合物,以及使用该橡胶组合物的充气轮胎。溶胶:橡胶组合物含有:共轭二烯聚合物 A)具有基于共轭二烯的单体单元,基于取代基中含硅原子和氨基的特定化合物的单体单元和基于式(2)表示的化合物的单体单元; 共轭二烯聚合物(B); 和二氧化硅。 二氧化硅相对于100重量份橡胶组分的含量为5-150磅。
    • 57. 发明专利
    • Rubber composition and pneumatic tire for a base tread
    • 用于基础和气动轮胎的橡胶组合物
    • JP2013124327A
    • 2013-06-24
    • JP2011274726
    • 2011-12-15
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • HOCHI KAZUOTOKIMUNE RYUICHI
    • C08L15/00B60C1/00C08F236/04C08L21/00
    • PROBLEM TO BE SOLVED: To provide a rubber composition capable of sufficiently improving low fuel consumption properties while maintaining/improving its good breaking strength; and to provide a pneumatic tire using the rubber composition.SOLUTION: The rubber composition for a base tread includes a rubber component containing 10-90 mass% of a diene copolymer which includes a structural unit based on a conjugated diene and a structural unit represented by formula (I) and has at least one end modified with an unsaturated carboxylic ester or N,N-2 substituted unsaturated carboxylic acid amide [at least one substituent on a silicon atom is an N,N-2 substituted amino group or a hydroxyl group]. In the formula (I): X, Xand Xare each independently a group represented by formula (Ia), a hydroxyl group, a hydrocarbyl group or a substituted hydrocarbyl group, and at least one of X, Xand Xis the group represented by formula (Ia) or a hydroxyl group. In the formula (Ia): Rand Rare each independently a 1-6C hydrocarbyl group, a 1-6C substituted hydrocarbyl group, a silyl group or a substituted silyl group, and Rand Rmay connect together to form a ring structure with a nitrogen atom.
    • 要解决的问题:提供能够在保持/提高其良好的断裂强度的同时充分提高低燃料消耗特性的橡胶组合物; 并提供使用该橡胶组合物的充气轮胎。 解决方案:用于胎面胎面的橡胶组合物包括含有10-90质量%的二烯共聚物的橡胶组分,其包含基于共轭二烯的结构单元和由式(I)表示的结构单元,并且至少具有 用不饱和羧酸酯或N,N-2取代的不饱和羧酸酰胺(硅原子上的至少一个取代基是N,N-2取代的氨基或羟基)改性的一端。 在公式(I)中:X 1 ,X 2 和X 3 1 ,X 2 ,X 3 是由式(Ia)表示的基团或羟基。 在式(Ia)中:R 1 和R 2 各自独立地为1-6C烃基, 取代的烃基,甲硅烷基或取代的甲硅烷基,并且R 2 可以连接在一起形成环 结构与氮原子。 版权所有(C)2013,JPO&INPIT
    • 58. 发明专利
    • Copolymer, rubber composition, and pneumatic tire
    • 共聚物,橡胶组合物和气动轮胎
    • JP2013119557A
    • 2013-06-17
    • JP2011266816
    • 2011-12-06
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • HINOHARA YUKOTOKIMUNE RYUICHI
    • C08C19/00B60C1/00C08F4/08C08F236/10C08K3/36C08L9/06
    • PROBLEM TO BE SOLVED: To provide a copolymer that can give a rubber composition and a pneumatic tire with low fuel consumption and wet grip performance improved in a good balance.SOLUTION: The copolymer is obtained by polymerizing a conjugate diene compound and a compound expressed by formula (II) by using a special anionic polymerization initiator having a tertiary amino group and an alkali metal atom to obtain a copolymer, and then reacting a specified compound with the active terminal of the obtained copolymer. The copolymer has a weight average molecular weight Mw of 1.0×10to 2.5×10. In the formula, Rto Rrepresent a 1-10C hydrocarbyl group; and r represents an integer of 1 to 20.
    • 要解决的问题:为了提供能够以良好的平衡提供橡胶组合物和具有低燃料消耗和湿抓地性能的充气轮胎的共聚物。 解决方案:共聚物通过使用具有叔氨基和碱金属原子的特殊的阴离子聚合引发剂使共轭二烯化合物和式(II)表示的化合物聚合而获得,得到共聚物,然后使 指定化合物与所得共聚物的活性末端。 共聚物的重均分子量Mw为1.0×10 5 至2.5×10 6 。 在该式中,R 11 至R 13 表示1-10C烃基; r表示1〜20的整数。(C)2013,JPO&INPIT
    • 59. 发明专利
    • Pneumatic tire
    • 气动轮胎
    • JP2012107141A
    • 2012-06-07
    • JP2010258136
    • 2010-11-18
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TOKIMUNE RYUICHI
    • C08L15/00B60C1/00C08F8/32C08F8/42C08F36/06C08K3/36C08K5/54C08L9/00
    • Y02T10/862
    • PROBLEM TO BE SOLVED: To provide a pneumatic tire having excellent low heat build-up (fuel-saving property), wet-grip property and abrasion resistance.SOLUTION: The pneumatic tire is produced by using a rubber composition containing the rubber composition comprising the following polymers A and B, and silica regulated so that the content of the silica based on 100 pts.mass of the rubber composition may be 10-150 pts.mass: polymer A: a polymer obtained by modifying an active terminal of a polymer obtained by copolymerizing a conjugated diene compound and an aromatic vinyl compound, with a compound A having two or more epoxy groups; and polymer B: a polymer obtained by the hydrosilylation of a polybutadiene with a silicon-containing compound.
    • 要解决的问题:提供一种具有优异的低发热(节省燃料)性,湿抓地性和耐磨性的充气轮胎。 解决方案:充气轮胎是通过使用包含含有以下聚合物A和B的橡胶组合物的橡胶组合物和调节二氧化硅的橡胶组合物制成的,使得基于100重量份橡胶组合物的二氧化硅的含量可以为10 -150 pts.mass:聚合物A:通过将共轭二烯化合物和芳族乙烯基化合物共聚得到的聚合物的活性末端与具有两个以上环氧基的化合物A进行改性而得到的聚合物; 和聚合物B:通过聚丁二烯与含硅化合物的氢化硅烷化获得的聚合物。 版权所有(C)2012,JPO&INPIT