-
公开(公告)号：US10428203B2
公开(公告)日：2019-10-01
申请号：US15503236
申请日：2015-07-10
发明人： Yuhei Yamashiro , Kazuya Torita , Soh Ishino
摘要： The present invention provides a pneumatic tire with well improved fuel economy, rubber tensile strength, and abrasion resistance. The present invention relates to a pneumatic tire formed from a rubber composition, the rubber composition containing: a hydrogenated copolymer obtained by copolymerization of an aromatic vinyl compound and a conjugated diene compound, the hydrogenated copolymer having a degree of hydrogenation of the conjugated diene units of 75 mol % or more; silica; and a silane coupling agent 1 containing a carbonylthio group (—S—C(═O)—) but no mercapto group (—SH) and/or a silane coupling agent 2 containing a mercapto group (—SH), the rubber composition containing, per 100% by mass of a rubber component, 75% by mass or more of the hydrogenated copolymer.
-
公开(公告)号：US09102816B2
公开(公告)日：2015-08-11
申请号：US14343000
申请日：2012-10-05
发明人： Soh Ishino
CPC分类号： C08L15/00 , B60C1/0016 , C08C19/44 , C08K3/36 , C08L7/00 , C08L9/00 , Y02T10/862
摘要： Provided are: a tire rubber composition improving fuel economy and abrasion resistance while maintaining good wet-grip performance or improving it; and a pneumatic tire including the same. The composition contains: a rubber component including a diene polymer (1); silica; and a diene polymer (2), the polymers (1) and (2) being modified diene polymers obtained by reacting components (A)-(B), the polymer (1) having a Mn of 110000-1500000, the polymer (2) having a Mn of 1000-100000, the amount of polymer (2) being 2-25 parts by mass per 100 parts by mass of the rubber component, wherein (A): an active alkali metal-terminated conjugated diene polymer obtained by polymerizing a conjugated diene monomer alone or with an aromatic vinyl monomer, in the presence of a component (C); (B): a modifying agent containing a functional group; (C): a chemical species obtained by reacting an organic alkali metal compound with a compound of formula (1):
摘要翻译： 提供：轮胎橡胶组合物，同时保持良好的湿抓地性能或改善燃料经济性和耐磨性; 以及包括该充气轮胎的充气轮胎。 该组合物含有：包含二烯聚合物（1）的橡胶组分; 二氧化硅 和二烯聚合物（2），聚合物（1）和（2）是通过使组分（A） - （B），具有110000-1500000的Mn的聚合物（1），聚合物（2） ），相对于100质量份的橡胶成分，聚合物（2）的含量为2〜25质量份，其中（A）：通过聚合得到的活性碱金属结束的共轭二烯聚合物 单独或与芳族乙烯基单体共轭二烯单体在组分（C）的存在下反应; （B）：含有官能团的改性剂; （C）：将有机碱金属化合物与式（1）化合物反应得到的化学物质：
-
公开(公告)号：US09129726B2
公开(公告)日：2015-09-08
申请号：US14266899
申请日：2014-05-01
发明人： Ryota Kitago , Soh Ishino , Ayuko Yamana
CPC分类号： H01B1/24 , B60C1/0041 , B60C19/084 , C08K3/04 , C08L7/00 , C08L9/06
摘要： Provided are a rubber composition for a tire which achieves a balanced improvement in tensile properties at break and fuel economy while providing excellent conductivity; and a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for a tire, including: a rubber component; a carbon black having a nitrogen adsorption specific surface area of 20 to 110 m2/g and a DBP oil absorption of 60 to 130 ml/100 g; and a conductive carbon black having a nitrogen adsorption specific surface area of 900 m2/g or larger, a DBP oil absorption of 300 ml/100 g or more, and a volatile content of 0.8% by mass or more, the rubber composition containing 0.1 to 3 parts by mass of the conductive carbon black per 100 parts by mass of the rubber component.
摘要翻译： 提供一种用于轮胎的橡胶组合物，其在提供优异的导电性的同时实现了断裂拉伸性能和燃料经济性的均衡改善; 以及包括该橡胶组合物的充气轮胎。 本发明涉及一种用于轮胎的橡胶组合物，包括：橡胶组分; 氮吸附比表面积为20〜110m 2 / g，DBP吸油量为60〜130ml / 100g的炭黑; 和氮吸附比表面积为900m 2 / g以上的导电性炭黑，DBP吸油量为300ml / 100g以上，挥发成分为0.8质量％以上的橡胶组合物，含有0.1 相对于100质量份的橡胶成分为3质量份的导电性炭黑。
-
公开(公告)号：US20140213713A1
公开(公告)日：2014-07-31
申请号：US14343000
申请日：2012-10-05
发明人： Soh Ishino
IPC分类号： C08L15/00
CPC分类号： C08L15/00 , B60C1/0016 , C08C19/44 , C08K3/36 , C08L7/00 , C08L9/00 , Y02T10/862
摘要： Provided are: a tire rubber composition improving fuel economy and abrasion resistance while maintaining good wet-grip performance or improving it; and a pneumatic tire including the same. The composition contains: a rubber component including a diene polymer (1); silica; and a diene polymer (2), the polymers (1) and (2) being modified diene polymers obtained by reacting components (A)-(B), the polymer (1) having a Mn of 110000-1500000, the polymer (2) having a Mn of 1000-100000, the amount of polymer (2) being 2-25 parts by mass per 100 parts by mass of the rubber component, wherein (A): an active alkali metal-terminated conjugated diene polymer obtained by polymerizing a conjugated diene monomer alone or with an aromatic vinyl monomer, in the presence of a component (C); (B): a modifying agent containing a functional group; (C): a chemical species obtained by reacting an organic alkali metal compound with a compound of formula (1):
摘要翻译： 提供：轮胎橡胶组合物，同时保持良好的湿抓地性能或改善燃料经济性和耐磨性; 以及包括该充气轮胎的充气轮胎。 该组合物含有：包含二烯聚合物（1）的橡胶组分; 二氧化硅 和二烯聚合物（2），聚合物（1）和（2）是通过使组分（A） - （B），具有110000-1500000的Mn的聚合物（1），聚合物（2） ），相对于100质量份的橡胶成分，聚合物（2）的含量为2〜25质量份，其中（A）：通过聚合得到的活性碱金属结束的共轭二烯聚合物 单独或与芳族乙烯基单体共轭二烯单体在组分（C）的存在下反应; （B）：含有官能团的改性剂; （C）：将有机碱金属化合物与式（1）化合物反应得到的化学物质：
-
公开(公告)号：US10479880B2
公开(公告)日：2019-11-19
申请号：US15711353
申请日：2017-09-21
发明人： Ryuichi Tokimune , Tsuyoshi Tsuchida , Ryota Kitago , Soh Ishino , Hiroyuki Kishimoto , Munenao Hirokami , Tetsuro Yamada
摘要： Provided are a rubber composition for tires which achieves both abrasion resistance and processability while maintaining fuel economy, and a pneumatic tire including the rubber composition. A rubber composition for tires, containing an organosilicon compound represented by the average compositional formula (I) below having a ratio of the number of sulfur atoms to the number of silicon atoms of 1.0 to 1.5, wherein x represents the average number of sulfur atoms; m represents an integer of 6 to 12; and R1 to R6 are the same or different and each represent a C1-C6 alkyl or alkoxy group, at least one of R1 to R3 and at least one of R4 to R6 are the alkoxy groups, and two or more of the alkyl or alkoxy groups for R1 to R6 may be joined to form a ring.
-
公开(公告)号：US10351696B2
公开(公告)日：2019-07-16
申请号：US14153638
申请日：2014-01-13
发明人： Soh Ishino
摘要： Provided is a rubber composition for a tire having improved abrasion resistance, fuel economy and processability in a balanced manner. Also provided is a method for producing the rubber composition, and a pneumatic tire formed from the rubber composition. The rubber composition for a tire is obtained by mixing a kneaded mixture containing butadiene rubber 1, silica 1, a silane coupling agent 1 with a sulfur content of 20% by mass or more, and oil 1; styrene-butadiene rubber 2; and a silane coupling agent 2 with a sulfur content of less than 20% by mass.
-
公开(公告)号：US10046600B2
公开(公告)日：2018-08-14
申请号：US14913225
申请日：2014-08-18
发明人： Tsuyoshi Tsuchida , Tatsuya Miyazaki , Soh Ishino
摘要： Provided is a pneumatic tire including a tread formed from a specified rubber composition, thereby achieving a balanced improvement in fuel economy, wet-grip performance, and abrasion resistance while simultaneously having excellent durability. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: an oil-extended BR having a cis content of 95 mol % or more, a vinyl content of 1 mol % or less, and a weight average molecular weight of 530,000 or more; a SBR having a bound styrene content of 30-50% by mass and a weight average molecular weight of 700,000 or more; silica; and carbon black, the oil-extended BR being synthesized using a rare earth catalyst, the rubber composition containing, based on 100% by mass of rubber solids, 10-67% by mass of the BR component contained in the oil-extended BR and 10-50% by mass of the SBR.
-
公开(公告)号：US09249284B2
公开(公告)日：2016-02-02
申请号：US14230773
申请日：2014-03-31
发明人： Tatsuya Miyazaki , Soh Ishino
IPC分类号： C08L7/00 , C08L9/06 , C08L21/00 , B60C1/00 , B60C9/02 , B60C19/08 , C08K3/04 , C08K3/06 , C08K3/22 , B29D30/38
CPC分类号： C08L7/00 , B29D30/38 , B29D2030/383 , B60C1/00 , B60C1/0041 , B60C9/02 , B60C19/08 , B60C19/084 , B60C2001/0066 , B60C2001/0083 , C08K3/04 , C08K3/06 , C08K2003/2296 , C08L9/06 , C08L21/00 , Y02T10/862
摘要： Provided are a rubber composition for tires which provides both adhesion to fiber cords and conductivity even when an inexpensive conductive carbon black is used, and thus achieves a balanced improvement in conductivity, handling stability, fuel economy, elongation at break, adhesion to fiber cords, processability, and tire durability; and a pneumatic tire including the composition. The composition includes, per 100 parts by mass of a rubber component: 1.0-3.5 parts by mass of sulfur with an iron content of 30 ppm or less, calculated as the net sulfur content in the sulfur; and 0.5-15 parts by mass of conductive carbon black having a DBP of 300 ml/100 g or more and an iron content of 60 ppm or more, the composition having a total net sulfur content of 1.0-6.0 parts by mass per 100 parts by mass of the rubber component, and a volume resistivity of 1.0×108 Ω·cm or less.
摘要翻译： 本发明提供一种轮胎用橡胶组合物，即使使用便宜的导电性炭黑也能够提供纤维帘线的粘附性和导电性，因此能够均衡地提高导电性，操作稳定性，燃油经济性，断裂伸长率，与纤维帘线的粘合性， 加工性和轮胎耐久性; 以及包含所述组合物的充气轮胎。 该组合物包含：相对于100质量份的橡胶成分：以硫的净硫含量计，铁含量为30ppm以下的硫1.0〜3.5质量份; 和0.5-15质量份DBP为300ml / 100g以上且铁含量为60ppm以上的导电性炭黑，该组合物的总净硫含量为1.0〜6.0质量份/ 100份 的橡胶成分，体积电阻率为1.0×10 8Ω·cm·cm以下。
-
公开(公告)号：US20140194552A1
公开(公告)日：2014-07-10
申请号：US14343342
申请日：2012-10-16
发明人： Soh Ishino
IPC分类号： C08L9/06
CPC分类号： C08L9/06 , B60C1/0016 , C08C19/22 , C08C19/44 , C08L15/00 , C08L2312/00
摘要： Provided are: a rubber composition for tires capable of improving fuel economy, wet grip performance, and abrasion resistance; and a pneumatic tire including the same. Included is a rubber composition for tires including: a diene polymer; silica; and a liquid resin having a softening point of −20 to 20° C., the diene polymer being a modified diene polymer obtained by reacting components (A) and (B), the liquid resin being present in an amount of 3-40 parts by mass per 100 parts by mass of the rubber component, the component (A) being an active alkali metal-terminated conjugated diene polymer obtained by polymerizing a conjugated diene monomer alone or with an aromatic vinyl monomer, in the presence of a component (C) the component (B) being a modifier containing a functional group, the component (C) being a chemical species obtained by reacting an organic alkali metal compound and a compound of Formula (1) below.
摘要翻译： 提供：能够提高燃料经济性，湿抓地性能和耐磨性的用于轮胎的橡胶组合物; 以及包括该充气轮胎的充气轮胎。 包括用于轮胎的橡胶组合物，包括：二烯聚合物; 二氧化硅 和软化点为-20〜20℃的液体树脂，所述二烯系聚合物为通过使成分（A）和（B）反应而得到的改性二烯系聚合物，所述液态树脂的含量为3-40份 （A）作为单体或芳香族乙烯基单体的共轭二烯单体聚合得到的活性碱金属类封端共轭二烯系聚合物，（A）成分（C） ）组分（B）是含有官能团的改性剂，组分（C）是通过有机碱金属化合物和下式（1）的化合物反应获得的化学物质。
-
公开(公告)号：US11571931B2
公开(公告)日：2023-02-07
申请号：US15767741
申请日：2016-09-21
发明人： Ryota Kitago , Ryuichi Tokimune , Soh Ishino
摘要： Provided are a method for manufacturing a rubber composition for a tire and a method for manufacturing a tire including this manufacturing method for the rubber composition in the present invention, which are characterized by including the steps of: starting to knead a rubber component, a sulfur donor, and a sulfur atom-containing vulcanization accelerator together before kneading the rubber component with a filler; and then adding a filler to an obtained kneaded product and performing kneading at a kneading temperature of 120° C. or higher. According to the manufacturing methods of the present invention, a rubber composition for a tire and a tire which have good fracture property can be manufactured.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.025 秒)
