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公开(公告)号：US20160177072A1
公开(公告)日：2016-06-23
申请号：US14900529
申请日：2014-06-12
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Tatsuya MIYAZAKI , Ryuichi TOKIMUNE
IPC: C08L9/00
CPC classification number: C08L9/00 , B60C1/00 , B60C1/0016 , B60C1/0025 , B60C2001/005 , C08K3/04 , C08K3/36 , C08K5/10 , C08K5/18 , C08L7/00 , C08L23/20 , C08L91/00 , C08L91/06 , C08L2205/02
Abstract: Provided are a rubber composition for tires preventing discoloration and improving ozone resistance while maintaining or improving good elongation at break and good fuel economy, and a pneumatic tire using the rubber composition. Included is a rubber composition for tires including: a rubber component including at least one selected from the group consisting of a specific non-oil extended polybutadiene rubber and a specific oil extended polybutadiene rubber; a phenylenediamine antioxidant; a specific nonionic surfactant; and carbon black and/or silica, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the phenylenediamine antioxidant of 1.0-8.0 parts by mass, an amount of the nonionic surfactant of 0.1-5.0 parts by mass, and a combined amount of carbon black and silica of 20-45 parts by mass, each per 100 parts by mass of the rubber component.
Abstract translation: 提供一种用于防止变色和提高耐臭氧性的轮胎的橡胶组合物，同时保持或改善良好的断裂伸长率和良好的燃料经济性，以及使用该橡胶组合物的充气轮胎。 包括用于轮胎的橡胶组合物，其包括：包含选自特定非油延伸聚丁二烯橡胶和特定延油聚丁二烯橡胶中的至少一种的橡胶组分; 苯二胺抗氧化剂; 特定的非离子表面活性剂; 和炭黑和/或二氧化硅，相对于橡胶成分100质量％，橡胶组合物的二烯系橡胶的含量为70〜100质量％，橡胶组合物的苯二胺抗氧化剂的量为1.0〜8.0份 质量份，0.1〜5.0质量份的非离子性表面活性剂的量，碳黑和二氧化硅的组合量为20〜45质量份，各100质量份的橡胶成分。
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公开(公告)号：US20180112065A1
公开(公告)日：2018-04-26
申请号：US15711353
申请日：2017-09-21
Inventor： Ryuichi TOKIMUNE , Tsuyoshi TSUCHIDA , Ryota KITAGO , Soh ISHINO , Hiroyuki KISHIMOTO , Munenao HIROKAMI , Tetsuro YAMADA
IPC: C08K5/548 , C08K5/5419 , C08L9/00
Abstract: 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.
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公开(公告)号：US20160108214A1
公开(公告)日：2016-04-21
申请号：US14894248
申请日：2014-05-19
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryuichi TOKIMUNE , Tatsuya MIYAZAKI , Masanobu NAKAMURA
IPC: C08L9/06
CPC classification number: C08L9/06 , B60C1/0016 , C08K3/04 , C08K3/06 , C08K3/36 , C08L21/00 , C08L71/02 , C08L2207/324
Abstract: The present invention provides a rubber composition for tires and a pneumatic tire formed from the rubber composition, wherein the rubber composition can improve discoloration resistance and tire appearance while maintaining or improving good fuel economy and good abrasion resistance. The present invention relates to a rubber composition for tires containing a rubber component containing styrene-butadiene rubber in an amount of 30 to 100% by mass based on 100% by mass of the rubber component; a Pluronic-type nonionic surfactant; and sulfur, the rubber composition for tires having a combined amount of carbon black and silica of 20 to 140 parts by mass relative to 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和由橡胶组合物形成的充气轮胎，其中，橡胶组合物可以在保持或提高良好的燃料经济性和良好的耐磨性的同时，提高耐变色性和轮胎外观。 本发明涉及一种轮胎用橡胶组合物，其含有相对于100质量％的橡胶成分为30〜100质量％的含有苯乙烯 - 丁二烯橡胶的橡胶成分; 普朗尼克型非离子表面活性剂; 和硫，相对于100质量份橡胶组分，具有碳黑和二氧化硅的组合量的轮胎用橡胶组合物为20〜140质量份。
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4.发明申请公开(公告)号：US20180297403A1
公开(公告)日：2018-10-18
申请号：US15767741
申请日：2016-09-21
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryota KITAGO , Ryuichi TOKIMUNE , Soh ISHINO
Abstract: 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.
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公开(公告)号：US20160130426A1
公开(公告)日：2016-05-12
申请号：US14898199
申请日：2014-06-12
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Tatsuya MIYAZAKI , Ryuichi TOKIMUNE
IPC: C08L7/00
CPC classification number: C08L7/00 , B60C1/00 , B60C1/0016 , B60C1/0025 , B60C2001/005 , C08K5/10 , C08K5/18 , C08L21/00 , C08L91/06 , C08L2201/08 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08L9/00 , C08K3/04 , C08L9/06 , C08L23/16
Abstract: Provided are a rubber composition for tires preventing discoloration and improving ozone resistance while maintaining or improving good elongation at break, and a pneumatic tire using the rubber composition. Included is a rubber composition for tires including: a rubber component; a naturally occurring wax containing 40-98% by mass of an ester component; a phenylenediamine antioxidant and/or a quinone antioxidant; and a specific nonionic surfactant, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the naturally occurring wax of 0.01-5.0 parts by mass, an amount of petroleum-derived wax of 0-6.0 parts by mass, a combined amount of the phenylenediamine antioxidant and the quinone antioxidant of 1.0-8.0 parts by mass, and an amount of the nonionic surfactant of 0.1-5.0 parts by mass, each per 100 parts by mass of the rubber component.
Abstract translation: 提供一种用于防止变色和提高耐臭氧性的轮胎的橡胶组合物，同时保持或改善良好的断裂伸长率，以及使用该橡胶组合物的充气轮胎。 包括用于轮胎的橡胶组合物，包括：橡胶组分; 含有40-98质量％的酯组分的天然存在的蜡; 苯二胺抗氧化剂和/或醌抗氧化剂; 和特定的非离子表面活性剂，相对于橡胶成分100质量％，橡胶组合物的二烯系橡胶的含量为70〜100质量％，橡胶组合物的天然蜡量为0.01-5.0质量份 ，0-6.0质量份的石蜡衍生蜡的量，苯二胺抗氧化剂和醌类抗氧化剂的组合量为1.0〜8.0质量份，非离子表面活性剂的含量为0.1-5.0质量份， 每100质量份橡胶组分。
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Patent Agency Ranking
公开(公告)号：US20160122518A1
公开(公告)日：2016-05-05
申请号：US14895873
申请日：2015-01-21
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryuichi TOKIMUNE , Tatsuya MIYAZAKI
IPC: C08L7/00
CPC classification number: C08L7/00 , B60C1/00 , B60C1/0016 , C08G2650/58 , C08K3/04 , C08K3/06 , C08K3/36 , C08K9/06 , C08L9/00 , C08L9/06 , C08L71/02 , C08L91/06 , C08L93/00 , C08L2205/02 , C08L2205/03
Abstract: The present invention provides a rubber composition for tires capable of improving discoloration resistance and tire appearance while maintaining or improving good fuel economy, good abrasion resistance, and good performance on ice, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing a Pluronic nonionic surfactant in an amount of 0.1 to 6.0 parts by mass relative to 100 parts by mass of the rubber component, the rubber composition having a combined amount of polybutadiene rubber, natural rubber, and polyisoprene rubber of 70% by mass or more based on 100% by mass of the rubber component, and the rubber composition containing sulfur.
Abstract translation: 本发明提供一种能够在保持或提高良好的燃料经济性，良好的耐磨性和在冰上的良好性能的同时提高耐变色性和轮胎外观的轮胎用橡胶组合物和由橡胶组合物形成的充气轮胎。 本发明涉及轮胎用橡胶组合物，相对于100质量份的橡胶成分，含有0.1〜6.0质量份的Pluronic非离子表面活性剂，该橡胶组合物的聚丁二烯橡胶，天然橡胶 ，相对于100质量％的橡胶成分为70质量％以上的聚异戊二烯橡胶和含有硫的橡胶组合物。
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公开(公告)号：US20170320358A1
公开(公告)日：2017-11-09
申请号：US15526398
申请日：2015-11-27
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryuichi TOKIMUNE , Naoya KITAMURA , Kouji KAWAGUCHI , Naoya HASHIMOTO
CPC classification number: B60C1/0025 , B60C1/00 , B60C5/007 , C08K3/04 , C08K5/06 , C08L7/00 , C08L9/00 , C08L71/02
Abstract: The present invention aims to provide a rubber composition for tires that can improve processability, crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also to provide a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a rubber component; an antioxidant; and polyether, the rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing the antioxidant in an amount of 0.3 to 7.0 parts by mass per 100 parts by mass of the rubber component, the polyether having an average mass content of at least two consecutive polyethylene oxide units of 85% or less of the polyethylene oxide mass content of the polyether.
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公开(公告)号：US20170260373A1
公开(公告)日：2017-09-14
申请号：US15529879
申请日：2015-11-11
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Naoya KITAMURA , Ryuichi TOKIMUNE
Abstract: Provided are: a rubber composition for tires that achieves a balanced improvement in handling stability, crack resistance, ozone resistance, discoloration resistance, tire appearance, fuel economy, tensile strength, and scorch resistance; and a pneumatic tire formed from the rubber composition. The invention relates to a rubber composition for tires containing: a rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 90% by mass or more based on 100% by mass of the rubber component; sulfur; and at least one nonionic surfactant selected from the group consisting of a Pluronic nonionic surfactant, and a nonionic surfactant represented by the formula (1) below and/or a nonionic surfactant represented by the formula (2) below, the rubber composition containing, per 100 parts by mass of the rubber component, 2-70 parts by mass of carbon black and 1-5 parts by mass of silica, and being free of silane coupling agents, wherein R1 represents a C6-C26 hydrocarbon group having an unsaturated bond, and d represents an integer, wherein R2 and R3 are the same or different and each represent a C6-C26 hydrocarbon group, and e represents an integer.
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公开(公告)号：US20160052340A1
公开(公告)日：2016-02-25
申请号：US14782182
申请日：2014-04-25
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Tatsuya MIYAZAKI , Ryuichi TOKIMUNE
CPC classification number: B60C1/0016 , B60C1/00 , B60C1/0025 , B60C11/0008 , B60C11/01 , B60C2011/016 , C08C19/25 , C08C19/44 , C08K3/22 , C08K2003/2227 , C08K2201/003 , C08K2201/006 , C08L7/00 , C08L9/00 , C08L9/06 , C08L15/00 , C08L21/00 , C08K3/36 , C08K3/04 , C08K5/548
Abstract: Provided is a pneumatic tire having an excellent finished bonding surface between the tread and its adjacent wing or sidewall while ensuring properties required for tires, such as wet grip performance, abrasion resistance, and resistance to degradation over time. Included is a pneumatic tire including a tread and a wing or sidewall adjacent to the tread, wherein the tread is formed from a tread rubber composition that has an amount of aluminum hydroxide having an average particle size of 0.69 μm or smaller and a N2SA of 10-50 m2/g of 1-60 parts by mass, and a net sulfur content derived from crosslinking agents of 0.56-1.25 parts by mass, each per 100 parts by mass of the rubber component, the wing or sidewall is formed from a wing or sidewall rubber composition that has a net sulfur content derived from crosslinking agents of 1.3-2.5 parts by mass per 100 parts by mass of the rubber component, and the net sulfur contents derived from crosslinking agents in the tread rubber composition and the wing or sidewall rubber composition satisfy a specific relationship.
Abstract translation: 本发明提供了一种充气轮胎，其具有在胎面及其相邻翼或侧壁之间具有优异的加工粘合面，同时确保轮胎所需的性能，例如湿抓地性能，耐磨性和耐久劣化性。 包括胎面和邻近胎面的机翼或侧壁的充气轮胎，其中胎面由胎面橡胶组合物形成，胎面橡胶组合物具有一定量的氢氧化铝，其平均粒度为0.69μm或更小，N2SA为10 -50m 2 / g，并且来自交联剂的净硫含量为0.56-1.25质量份，每100质量份橡胶组分，翼或侧壁由翼形成 或侧壁橡胶组合物，其相对于每100质量份橡胶组分，交联剂的交联剂的净硫含量为1.3〜2.5质量份，来自胎面橡胶组合物和翼或侧壁的交联剂的净硫含量 橡胶组成满足特定的关系。
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公开(公告)号：US20180258260A1
公开(公告)日：2018-09-13
申请号：US15526430
申请日：2015-11-27
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryuichi TOKIMUNE , Naoya KITAMURA , Kouji KAWAGUCHI , Naoya HASHIMOTO
CPC classification number: C08L9/00 , B60C1/00 , B60C1/0025 , B60C2001/005 , C08K3/04 , C08L7/00 , C08L23/16 , C08L71/02 , C08L2201/08 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08L91/00 , C08L91/06 , C08K5/18 , C08K5/09 , C08K3/06 , C08K3/22 , C08K5/47 , C08L23/22
Abstract: The present invention provides a rubber composition for tires which can improve crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing a rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% 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 to 8.0 parts by mass of polyether (A) having a glycol ether content of 80% by mass or more and a HLB of 3.5 to 19.0, the polyether (A) excluding Pluronic nonionic surfactants; 2 to 70 parts by mass of carbon black; and 0.3 to 7.0 parts by mass of an antioxidant.
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