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41. 发明申请

US20140213700A1 RUBBER COMPOSITION AND PNEUMATIC TIRE 有权
标题翻译：橡胶组合物和气动轮胎
公开(公告)号：US20140213700A1
公开(公告)日：2014-07-31
申请号：US14148427
申请日：2014-01-06
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI , Sumiko MIYAZAKI
IPC分类号： C08L15/00
CPC分类号： C08L7/02 , B60C1/00 , C08K7/02 , C08L9/00 , C08L33/00 , C08L2205/16 , C08L2310/00
摘要： Provided are a rubber composition in which microfibrillated plant fibers are sufficiently uniformly dispersed to improve tire performance requirements in a balanced manner, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition formed from a masterbatch containing a rubber latex and microfibrillated plant fibers, the masterbatch being obtained by stirring the microfibrillated plant fibers in a solvent with a circulation type or continuous homogenizer and mixing the resulting microfibrillated plant fiber solution with the rubber latex and a cationic polymer, the microfibrillated plant fibers having a mean fiber length of 10 to 150 μm, the microfibrillated plant fiber solution containing 0.1 to 2.0% by mass of the microfibrillated plant fibers, and the amount of the cationic polymer being 0.01 to 5 parts by mass per 100 parts by mass of the rubber component of the rubber latex.
摘要翻译：提供了一种橡胶组合物，其中微纤化植物纤维被充分均匀地分散以平衡地提高轮胎性能要求，以及由橡胶组合物形成的充气轮胎。本发明涉及由含有橡胶胶乳和微纤化植物纤维的母料形成的橡胶组合物，母料通过在循环型或连续均化器中将溶剂中的微纤化植物纤维搅拌并将所得微纤化植物纤维溶液与橡胶胶乳和阳离子聚合物，平均纤维长度为10〜150μm的微纤化植物纤维，含有0.1〜2.0质量％的微纤化植物纤维的微纤化植物纤维溶液，阳离子聚合物的量为0.01 至每100质量份橡胶胶乳的橡胶组分为5质量份。

42. 发明申请

US20140128531A1 RUBBER COMPOSITION FOR TREAD, AND PNEUMATIC TIRE 有权
标题翻译：橡胶组合物和气动轮胎
公开(公告)号：US20140128531A1
公开(公告)日：2014-05-08
申请号：US14073921
申请日：2013-11-07
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI , Masanobu NAKAMURA
IPC分类号： C08K5/20 , C08K3/04 , C08K3/06
CPC分类号： C08L9/00 , B60C1/00 , B60C1/0016 , B60C1/0025 , B60C2001/0066 , C08K3/04 , C08K3/06 , C08K3/24 , C08K5/20 , C08L7/00 , C08L2205/03 , C08L21/00
摘要： The present invention provides a rubber composition for a tread which improves in terms of the fuel efficiency of a rubber composition containing an isoprene-based rubber and also offers favorable abrasion resistance and elongation at break, and a pneumatic tire comprising a tread formed from the rubber composition. The present invention relates to a rubber composition for a tread, comprising: a rubber component; a specific amount of a carbon black having a predetermined nitrogen adsorption specific surface area; a specific amount of sulfur; and a specific amount of a compound represented by formula (I) below, the rubber component comprising specific amounts of an isoprene-based rubber and a high-cis butadiene rubber having a predetermined cis content:
摘要翻译：本发明提供了一种用于胎面的橡胶组合物，其在含有异戊二烯类橡胶的橡胶组合物的燃料效率方面提高，并且还提供有利的耐磨性和断裂伸长率，以及包括由橡胶制成的胎面的充气轮胎组成。本发明涉及一种用于胎面的橡胶组合物，包括：橡胶组分; 特定量的具有预定氮吸附比表面积的炭黑; 一定量的硫磺; 和特定量的由下式（I）表示的化合物，所述橡胶组分包含特定量的异戊二烯类橡胶和具有预定顺式含量的高顺式丁二烯橡胶：

43. 发明申请

US20140116594A1 INNER LINER RUBBER COMPOSITION AND PNEUMATIC TIRE 有权
标题翻译：内衬橡胶组合物和气动轮胎
公开(公告)号：US20140116594A1
公开(公告)日：2014-05-01
申请号：US14062253
申请日：2013-10-24
申请人： SUMITOMO RUBBER INDUSTRIES, LTD
发明人： Tatsuya MIYAZAKI
IPC分类号： C08L47/00 , B60C1/00 , C08L17/00
CPC分类号： B60C1/0008 , Y02T10/862
摘要： The invention provides an inner liner rubber composition that enables improvements in handling stability, fuel economy, elongation at break, sheet processability, air barrier properties, and compounding cost in a balanced manner; and a pneumatic tire including an inner liner formed from the rubber composition. The rubber composition includes: a reclaimed butyl rubber; a halogenated butyl rubber other than the reclaimed butyl rubber; at least one semi-reinforcing filler selected from the group consisting of finely ground bituminous coal, talc, mica, and hard clay; and carbon black having a specific N2SA and/or silica having a specific N2SA, wherein the finely ground bituminous coal has a specific average particle size, and the rubber composition has a predetermined reclaimed butyl rubber content, a predetermined combined content of the reclaimed butyl rubber and the halogenated butyl rubber, a predetermined total semi-reinforcing filler content, and a predetermined combined content of the carbon black and the silica.
摘要翻译：本发明提供一种能够以平衡的方式改进操作稳定性，燃料经济性，断裂伸长率，片材加工性，阻气性和复合成本的内衬橡胶组合物。以及包括由橡胶组合物形成的内衬的充气轮胎。橡胶组合物包括：再生丁基橡胶; 除了再生丁基橡胶之外的卤化丁基橡胶; 至少一种选自精细研磨的沥青煤，滑石，云母和硬质粘土的半增强填料; 和具有特定的N 2 SA和/或具有特定的N 2 SA的二氧化硅的炭黑，其中所述精细研磨的沥青煤具有特定的平均粒度，并且所述橡胶组合物具有预定的再生丁基橡胶含量，所述再生丁基橡胶的预定组合含量和卤化丁基橡胶，预定的总半增强填料含量，以及炭黑和二氧化硅的预定组合含量。

44. 发明申请

US20140110031A1 RUBBER COMPOSITION FOR INNER-LINER JOINT STRIP, AND PNEUMATIC TIRE 审中-公开
标题翻译：用于内衬连接条和橡胶轮胎的橡胶组合物
公开(公告)号：US20140110031A1
公开(公告)日：2014-04-24
申请号：US14059021
申请日：2013-10-21
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI
IPC分类号： B60C1/00
CPC分类号： B60C1/0008 , B60C2005/147 , C08K3/04 , C08K3/36 , C08K5/375 , C08K13/02 , C08L7/00 , C08L23/283 , C08L81/02
摘要： A rubber composition for an inner-liner joint strip is capable of improving green strength and adhesion, while maintaining good durability (oxidative degradation resistance, crack growth resistance) and good air retention properties, which are exhibited by a pneumatic tire formed from the composition. The rubber composition for an inner-liner joint strip, includes: a butyl rubber; silica and/or carbon black; and an alkylphenol-sulfur chloride condensate represented by formula (1) below, wherein a butyl rubber content is 60 to 100 mass % based on 100 mass % of the rubber component of the rubber composition, a total combined amount of the silica and the carbon black is 21 to 70 parts by mass per 100 parts by mass of the rubber component, and an amount of the alkylphenol-sulfur chloride condensate is 0.1 to 5 parts by mass per 100 parts by mass of the rubber component.
摘要翻译：内衬接合带的橡胶组合物能够通过由组合物形成的充气轮胎显示出良好的耐久性（耐氧化降解性，抗裂纹生长性）和良好的保气性，从而提高生坯强度和粘附性。用于内衬接头条的橡胶组合物包括：丁基橡胶; 二氧化硅和/或炭黑; 和由下式（1）表示的烷基酚 - 硫化氢缩合物，其中丁基橡胶含量相对于橡胶组合物的橡胶组分的100质量％为60〜100质量％，二氧化硅和碳的总量相对于100质量份的橡胶成分，黑色为21〜70质量份，相对于100质量份的橡胶成分，烷基酚 - 硫化氢浓缩物的量为0.1〜5质量份。

45. 发明申请

US20140107261A1 RUBBER COMPOSITION FOR TREAD AND PNEUMATIC TIRE 审中-公开
标题翻译：橡胶组合物用于铁和轮胎
公开(公告)号：US20140107261A1
公开(公告)日：2014-04-17
申请号：US14132989
申请日：2013-12-18
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI
IPC分类号： C08L9/06 , C08L7/00
CPC分类号： C08L9/06 , C08L7/00 , C08L45/02 , C08L91/00 , C08L93/04 , C08L9/00 , C08L45/00 , C08L25/02
摘要： An object of the present invention is to provide a rubber composition for a tread which can improve fuel economy, grip performance (in particular, wet grip performance), abrasion resistance and handling stability in a balanced manner, and a pneumatic tire produced using the rubber composition. The present invention relates to a rubber composition for a tread, including a molten mixture of a solid resin having a softening point of not lower than 40° C. and at least one softener selected from the group consisting of oils, liquid coumarone-indene resins, and liquid indene resins, and the molten mixture having a mass ratio of the solid resin to the softener of 90/10 to 50/50.
摘要翻译：本发明的目的是提供一种用于胎面的橡胶组合物，其能够以均衡的方式提高燃料经济性，抓地性能（特别是湿抓地性能），耐磨性和操作稳定性，以及使用橡胶制造的充气轮胎组成。本发明涉及一种用于胎面的橡胶组合物，其包括软化点不低于40℃的固体树脂的熔融混合物和至少一种选自油，液体香豆酮 - 茚树脂的软化剂和液体茚树脂，固体树脂与软化剂的质量比为90/10〜50/50的熔融混合物。

46. 发明申请

US20200369087A1 PNEUMATIC TIRE 审中-公开
公开(公告)号：US20200369087A1
公开(公告)日：2020-11-26
申请号：US16635161
申请日：2018-07-25
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Ryoji MATSUI , Tatsuya MIYAZAKI , Naoya HASHIMOTO , Tsuyoshi NISHIMOTO
IPC分类号： B60C11/00
摘要： The present invention provides a pneumatic tire that can exhibit sufficient wet grip performance on roads in different areas. The present invention relates to a pneumatic tire including a tread, the tread showing a loss tangent (tan δ) versus temperature curve whose peak position is at −20.0° C. to 0.0° C. and whose tan δ at the peak position is 0.80 or higher, the curve being obtained by plotting tan δ as a function of measurement temperature, the curve having a tan δ at an intersection of a tangent line to the curve at a temperature lower by 20° C. than the peak position temperature and a tangent line to the curve at a temperature higher by 20° C. than the peak position temperature that satisfies the following relationship (1): (tan δ at peak position−0.05)≤(tan δ at intersection)≤(tan δ at peak position+0.05) (1).

47. 发明申请

US20190048175A1 RUBBER COMPOSITION 审中-公开
公开(公告)号：US20190048175A1
公开(公告)日：2019-02-14
申请号：US15761440
申请日：2016-09-01
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI
IPC分类号： C08L21/00 , C08K3/22 , C08K3/36 , C08K5/13 , C08K5/20 , C08K5/375
CPC分类号： C08L21/00 , C08K3/22 , C08K3/36 , C08K5/13 , C08K5/20 , C08K5/372 , C08K5/375 , C08K2003/2227 , C08K2201/019
摘要： The purpose of the present invention is to provide a rubber composition in which a rubber viscosity during kneading is low and processability is good though the rubber composition comprises a white filler, and fuel efficiency and abrasion resistance are good. A rubber composition comprising a rubber component, a white filler and a compound represented by the following formula (1), where R1 represents an alkyl group or alkenyl group having 8 to 14 carbon atoms, the alkyl group or alkenyl group may be linear, branched or cyclic, and R2 represents a hydroxyalkyl group or a hydroxyalkyl group having an oxyalkylene unit.

48. 发明申请

US20180057665A1 RUBBER COMPOSITION 审中-公开
公开(公告)号：US20180057665A1
公开(公告)日：2018-03-01
申请号：US15670630
申请日：2017-08-07
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI
IPC分类号： C08L7/00 , B60C1/00
CPC分类号： C08L7/00 , B60C1/0016 , B60C1/0025 , B60C2001/0066 , B60C2001/0075 , C08J3/223 , C08J2309/00 , C08K3/22 , C08K3/36 , C08K5/098 , C08K2201/014 , C08L2205/03 , C08L9/00
摘要： A rubber composition includes a rubber component, a molten mixture including one or more of benzoic acid zinc and t-butyl benzoic acid zinc in the range of 0.05 to 6.0 parts by mass with respect to 100 parts by mass of the rubber component, and one or more of wet synthetic silica and aluminum hydroxide in the range of 0.5 to 140 parts by mass with respect to 100 parts by mass of the rubber component.

49. 发明申请

US20170253728A1 RUBBER COMPOSITION FOR TREADS AND PNEUMATIC TIRE 审中-公开
公开(公告)号：US20170253728A1
公开(公告)日：2017-09-07
申请号：US15503967
申请日：2015-07-29
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI
IPC分类号： C08K13/02
CPC分类号： C08K13/02 , B60C1/00 , B60C1/0008 , B60C1/0016 , C08K3/04 , C08K3/06 , C08K3/14 , C08K3/22 , C08K3/30 , C08K3/34 , C08K5/5398 , C08K2003/2206 , C08K2003/2217 , C08K2003/2224 , C08K2003/2227 , C08K2003/2237 , C08K2003/2244 , C08K2003/3063 , C08K2201/006 , C08K2201/019 , C08L9/00 , C08L9/06 , C08L25/04 , C08L25/06 , C08L61/04 , C08L91/00 , C08L93/00 , C08L2666/54
摘要： Provided are: a rubber composition for treads which contains a diene rubber in the rubber component and can simultaneously achieve blowing resistance during dry running, wet grip performance and abrasion resistance; and a pneumatic tire including a tread formed from the rubber composition for treads. The rubber composition contains: a diene rubber including styrene-butadiene rubber; zinc dithiophosphate; an inorganic filler including at least one selected from the group consisting of: a compound of the formula: mM.xSiOy.zH2O wherein M represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal, m represents an integer of 1-5, x represents an integer of 0-10, y represents an integer of 2-5, and z represents an integer of 0-10; magnesium sulfate; and silicon carbide, and having a BET value of 5-120 m2/g and a linseed oil absorption of 30-80 mL/100 g; and sulfur, wherein, per 100 parts by mass of the diene rubber, there are 0.2-15 parts by mass of the zinc dithiophosphate, 1-70 parts by mass of the inorganic filler, and less than 2.5 parts by mass of zinc oxide.

50. 发明申请

US20170174001A1 TREAD RUBBER COMPOSITION AND PNEUMATIC TIRE 审中-公开
公开(公告)号：US20170174001A1
公开(公告)日：2017-06-22
申请号：US15319653
申请日：2015-06-16
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Tatsuya MIYAZAKI , Kensuke WASHIZU
IPC分类号： B60C1/00 , C08K5/00 , C08K3/22 , C08K5/5398 , C08K3/06
CPC分类号： B60C1/0016 , B60C1/00 , C08K3/04 , C08K3/06 , C08K3/22 , C08K3/32 , C08K3/36 , C08K5/0016 , C08K5/47 , C08K5/5398 , C08K2003/2227 , C08K2003/2296 , C08K2003/321 , C08L9/00 , C08L9/06 , C08L15/00 , C08L57/02 , C08L61/06 , C08L91/00
摘要： Provided are: a rubber composition for treads having high grip performance, abrasion resistance, and tensile properties and capable of reducing the occurrence of blowing even during high-temperature running although it is a high softener content composition incorporating at least a certain amount of a softener with a rubber component including diene rubber; and a pneumatic tire including a tread formed from the rubber composition for treads. Included is a rubber composition for treads containing: a diene rubber including styrene-butadiene rubber; at least one softener selected from the group consisting of low temperature plasticizers, process oils, and resins having a softening point of 160° C. or lower; zinc dithiophosphate; and sulfur, wherein, per 100 parts by mass of the diene rubber, there are 40 parts by mass or more of the softener, 0.2-15 parts by mass of the zinc dithiophosphate, and less than 2.5 parts by mass of zinc oxide.

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