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公开(公告)号：EP3854610A1
公开(公告)日：2021-07-28
申请号：EP19863187.1
申请日：2019-09-13
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： OTSUBO, Shigeki , MIYAZAKI, Tatsuya
Abstract: The present invention provides a pneumatic tire that can improve wet grip performance while maintaining a good TGC resistance, even when the tire is stored as having a thin thickness of a subtread at a bottom of a tread main groove, and rim-assembled and mounted on a vehicle to be left to stand. The present invention relates to a pneumatic tire comprising a tread part, the tread part comprising at least a cap tread and a jointless band, the cap tread being formed of a rubber composition for a cap tread, the jointless band comprising fiber cords coated with a rubber composition for fiber cord toppings, the rubber composition for a cap tread comprising 3.0 parts by mass or more of antioxidant based on 100 parts by mass of a rubber component comprising a diene-based rubber, and wherein a subtread thickness at the bottom of tread main grooves is 0.1 to 3.0 mm
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公开(公告)号：EP3778750A1
公开(公告)日：2021-02-17
申请号：EP19785616.4
申请日：2019-03-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
Abstract: The present invention aims to provide a rubber composition which provides a balanced improvement in tensile properties, fuel economy, and abrasion resistance. The present invention relates to a rubber composition including a rubber component containing a diene rubber; silica and/or carbon black; and a masterbatch containing sulfur and a resin having an acid value of 5 or higher.
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公开(公告)号：EP3305843B1
公开(公告)日：2020-01-15
申请号：EP16830491.3
申请日：2016-07-25
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
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公开(公告)号：EP3228658B1
公开(公告)日：2019-11-06
申请号：EP15872713.1
申请日：2015-12-09
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
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5.发明公开
公开(公告)号：EP3281979A1
公开(公告)日：2018-02-14
申请号：EP16783041.3
申请日：2016-04-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
CPC classification number: C08L21/00 , B60C1/00 , B60C1/0016 , B60C1/0025 , B60C15/06 , B60C2001/005 , C08K3/06 , C08K5/11 , C08L9/00 , C08L9/06 , C08L45/02 , C08L101/00
Abstract: Provided are a rubber composition for outer layers of tires with which it is possible to reduce the amount of phosphorus used, and further to improve initial grip performance and grip performance during the middle phase of running while maintaining or improving good abrasion resistance, thereby achieving a balanced improvement in these properties, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for outer layers of tires, containing a rubber component, a plasticizer, a resin having a softening point of 30°C or higher, and sulfur, the plasticizer including an aliphatic polybasic acid ester having a freezing point of -50 to -10°C, the rubber composition containing, per 100 parts by mass of the rubber component, 0.5 to 50 parts by mass of the aliphatic polybasic acid ester and 2 parts by mass or more of the resin.
Abstract translation: 本发明提供一种轮胎外层用橡胶组合物，其能够降低磷的使用量，进一步提高行驶中期的初期抓地性能和抓地性能，同时保持或改善良好的耐磨性，从而实现 这些性能的平衡改进，以及由该橡胶组合物形成的充气轮胎。 本发明涉及一种轮胎外层用橡胶组合物，其含有橡胶成分，增塑剂，软化点为30℃以上的树脂和硫，所述增塑剂含有具有凝固点的脂肪族多元酸酯 为-50〜-10℃的橡胶组合物，相对于橡胶成分100质量份，含有0.5〜50质量份的脂肪族多元酸酯和2质量份以上的树脂。
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Patent Agency Ranking
公开(公告)号：EP3000843A1
公开(公告)日：2016-03-30
申请号：EP14814555.0
申请日：2014-05-19
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： TOKIMUNE, Ryuichi , MIYAZAKI, Tatsuya , NAKAMURA, Masanobu
CPC classification number: C08L7/00 , B60C1/00 , C08G2650/58 , C08K3/04 , C08K3/06 , C08L9/00 , C08L71/02 , C08L2205/02 , C08L2205/035
Abstract: Provided are a rubber composition for tires, capable of improving discoloration resistance and tire appearance while maintaining good handling stability, crack resistance, and ozone resistance or improving these properties, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires including a rubber component having a combined amount of polybutadiene rubber, natural rubber, and polyisoprene rubber of 90% by mass or more based on 100% by mass of a rubber component; sulfur; a pluronic nonionic surfactant in an amount of 0.1 to 5.0 parts by mass per 100 parts by mass of the rubber component; and carbon black in an amount of 2 to 70 parts by mass per 100 parts by mass of the rubber component.
Abstract translation: 本发明提供一种轮胎用橡胶组合物以及由该橡胶组合物形成的充气轮胎，其能够在维持良好的操作稳定性，耐裂纹性和耐臭氧性或改善这些性能的同时改善耐变色性和轮胎外观。 本发明涉及一种轮胎用橡胶组合物，其包含基于100质量％的橡胶组分，聚丁二烯橡胶，天然橡胶和聚异戊二烯橡胶的总量为90质量％以上的橡胶组分; 硫; 相对于100质量份的橡胶成分为0.1〜5.0质量份的普鲁兰尼克非离子表面活性剂; 和相对于每100质量份橡胶组分为2至70质量份的炭黑。
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公开(公告)号：EP3783061A1
公开(公告)日：2021-02-24
申请号：EP19848640.9
申请日：2019-08-06
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： TAKAGI, Keiji , MIYAZAKI, Tatsuya
Abstract: According to the rubber composition for a tire tread comprising a diene-based rubber component, and, based on 100 parts by mass of the diene-based rubber component, 0.5 to 6.0 parts by mass of a branched alkane of 40 to 70 carbon atoms, 0.05 to 3.5 parts by mass of a linear alkane of 45 or more carbon atoms and 1 to 35 parts by mass of aluminum hydroxide, and a tire comprising tread composed of the rubber composition for a tire tread of the present invention, a rubber composition for a tire tread capable of improving initial wet grip performance can be provided, thereby providing a tire having such improved initial wet grip performance.
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公开(公告)号：EP3581398A1
公开(公告)日：2019-12-18
申请号：EP19179417.1
申请日：2019-06-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
Abstract: Provided are: a rubber composition for a tire, which allows low fuel consumption performance, wet grip performance, and wear resistance to be improved in a balanced manner; and a pneumatic tire using the rubber composition.
The rubber composition for a tire contains: a rubber component including a styrene-butadiene rubber having a styrene content not less than 25% by mass; an α-methylstyrene-indene copolymer resin having a weight-average molecular weight not greater than 400; and silica, wherein, per 100 parts by mass of the rubber component, an amount of the α-methylstyrene-indene copolymer resin is 0.1 to 100 parts by mass and an amount of the silica is not less than 80 parts by mass.-
公开(公告)号：EP3299411A1
公开(公告)日：2018-03-28
申请号：EP16807262.7
申请日：2016-05-18
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
CPC classification number: B60C1/0016 , B60C1/00 , B60C11/005 , B60C2001/0083 , B60C2200/10 , C08J3/22 , C08J2309/06 , C08J2401/02 , C08K3/04 , C08K3/36 , C08L1/02 , C08L7/00 , C08L9/00 , C08L9/06 , C08L61/04 , C08L65/00 , C08L2205/16
Abstract: The invention aims to provide a pneumatic tire achieving a balanced improvement in dry grip performance and abrasion resistance. The invention relates to a pneumatic tire including a component that contacts a road during running, the component being formed from a rubber composition for a component that contacts a road during running which contains: SBR; a short cellulose fiber having an average fiber length of 10 µm to 10 mm; and a silica having a N 2 SA of 100 m 2 /g or more and/or a carbon black having a N 2 SA of 70 m 2 /g or more, the SBR being present in an amount of 60% by mass or more per 100% by mass of the rubber component, the rubber composition containing, per 100 parts by mass of the rubber component, 0.1-20 parts by mass of the fiber and at least 60 parts by mass in total of the silica and/or the carbon black.
Abstract translation: 本发明旨在提供一种实现干抓地性能和耐磨性的均衡改进的充气轮胎。 本发明涉及一种充气轮胎，其包括在行驶期间接触道路的部件，所述部件由用于在行驶期间接触道路的部件的橡胶组合物形成，所述部件包含：SBR; 平均纤维长度为10μm至10mm的短纤维素纤维; 和N 2 SA为100m 2 / g以上的二氧化硅和/或N 2 SA为70m 2 / g以上的炭黑，相对于每100质量％的100质量％，SBR的含量为60质量％以上 橡胶组分，每100质量份橡胶组分含有0.1-20质量份纤维和至少60质量份二氧化硅和/或炭黑的橡胶组分。
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公开(公告)号：EP3281978A1
公开(公告)日：2018-02-14
申请号：EP16783040.5
申请日：2016-04-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： MIYAZAKI, Tatsuya
CPC classification number: B60C1/0016 , B60C1/00 , C08K3/06 , C08K5/092 , C08K5/10 , C08K5/12 , C08K5/52 , C08K5/521 , C08L21/00 , C08L33/00 , C08L33/08 , C08L33/20 , C08L101/00 , C08L9/00 , C08K3/30 , C08K5/0016 , C08K5/11
Abstract: Provided are a rubber composition that achieves a balanced improvement in grip performance during the initial to late phases of running and abrasion resistance, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition containing a rubber component, sulfur, and a molten mixture of a solid resin and a plasticizer, the solid resin having an SP value of 9.2 to 13 and/or a softening point of 130°C or higher, the plasticizer including at least one compound selected from the group consisting of phosphoric acid esters, phthalic acid esters, aliphatic polybasic acid esters, trimellitic acid esters, acetic acid esters, and ricinoleic acid esters, the solid resin being present in an amount of 1 part by mass or more per 100 parts by mass of the rubber component.
Abstract translation: 本发明提供一种橡胶组合物，该橡胶组合物在跑步耐磨性的初期至后期期间实现抓地性能的均衡提高，以及由该橡胶组合物形成的充气轮胎。 本发明涉及含有橡胶组分，硫和固体树脂与增塑剂的熔融混合物的橡胶组合物，所述固体树脂的SP值为9.2至13和/或软化点为130℃或更高 所述增塑剂包含选自由磷酸酯，邻苯二甲酸酯，脂肪族多元酸酯，偏苯三酸酯，乙酸酯和蓖麻油酸酯组成的组中的至少一种化合物，所述固体树脂以1 质量份，每100质量份橡胶组分。
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