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公开(公告)号：US20200238768A1
公开(公告)日：2020-07-30
申请号：US16850325
申请日：2020-04-16
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Masako NAKATANI , Takahiro KAWACHI , Ayuko YAMADA , Takuya HORIGUCHI , Masataka HIRO , Takayuki NAGASE , Hiroshi ITO , Fumiya KATO , Subaru TOYA
Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
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公开(公告)号：US20180186973A1
公开(公告)日：2018-07-05
申请号：US15513514
申请日：2015-09-30
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Ryota KITAGO , Takayuki NAGASE , Yuuki KAWANA , Takayuki HATTORI , Takao WADA , Soh ISHINO , Yuhei YAMASHIRO , Masaki OSHIMO , Masanobu NAKAMURA
CPC classification number: C08L7/00 , B60C1/00 , B60C1/0016 , B60C15/06 , C08K3/04 , C08K2201/003 , C08K2201/006 , C08L9/00 , C08L9/06 , C08L15/02 , C08L21/00 , C08L91/00 , C08L2205/025 , C08L2207/20
Abstract: The present invention aims to provide pneumatic tires that can achieve both abrasion resistance and low heat build-up properties. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including an isoprene-based rubber and a high-cis polybutadiene rubber having a cis content of 90% by mass or more; one or more types of carbon black; and sulfur, at least one of the one or more types of carbon black being produced from a feedstock oil that has a BMCI value of 150 or less and an aliphatic hydrocarbon content of 30% by mass or more, the BMCI value being calculated from the average boiling point T (° C.) and the specific gravity D (60/60° F.) relative to water at 60° F. according to the equation below, BMCI=48,640/(T+273)+473.7D−456.8.
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公开(公告)号：US20160068672A1
公开(公告)日：2016-03-10
申请号：US14832613
申请日：2015-08-21
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Hiroki NAKAJIMA , Takayuki NAGASE , Shigeki OTSUBO
CPC classification number: C08L33/08 , B60C1/0016 , C08L9/00 , C08L9/06 , C08L21/00 , C08L33/06 , C08L33/12 , C08L71/00 , C08L101/00
Abstract: The present invention provides a pneumatic tire that achieves a balanced improvement in initial grip performance, grip performance during running, and abrasion resistance. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing a rubber component, a solventless acrylic resin, and a liquid xylene resin, and having a solventless acrylic resin content of 1 to 50 parts by mass and a liquid xylene resin content of 5 to 100 parts by mass, each per 100 parts by mass of the rubber component.
Abstract translation: 本发明提供一种充气轮胎，其能够实现初始抓地性能的均衡提高，行驶时的抓地性能和耐磨性。 本发明涉及一种充气轮胎，其包括由橡胶组合物形成的胎面，所述橡胶组合物含有橡胶组分，无溶剂丙烯酸树脂和液体二甲苯树脂，并且具有1至50质量份的无溶剂丙烯酸树脂含量 相对于100质量份的橡胶成分，液体二甲苯树脂含量为5〜100质量份。
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公开(公告)号：US20190299722A1
公开(公告)日：2019-10-03
申请号：US15781968
申请日：2017-11-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Masako NAKATANI , Takahiro KAWACHI , Ayuko YAMADA , Takuya HORIGUCHI , Masataka HIRO , Takayuki NAGASE , Hiroshi ITO , Fumiya KATO , Subaru TOYA
Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
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公开(公告)号：US20180094107A1
公开(公告)日：2018-04-05
申请号：US15705925
申请日：2017-09-15
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Tatsuhiro TANAKA , Takayuki NAGASE , Keiji IKEDA
Abstract: A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire is characterized by initiating kneading of a rubber component and a compound represented by the following formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein each of R1 to R4 independently represents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 5 to 12 carbon atoms.)
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Patent Agency Ranking
公开(公告)号：US20180057669A1
公开(公告)日：2018-03-01
申请号：US15657840
申请日：2017-07-24
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Takayuki NAGASE
IPC: C08L9/06
Abstract: The object of the present invention is to provide a tire which is excellent in steering stabilities at low temperature and at high temperature after aging without deterioration of the initial steering stabilities at low temperature and at high temperature. The present invention relates to a tire having a tread composed of a rubber composition comprising a softener comprising 5 to 50 parts by mass of an adhesive resin and 5 to 50 parts by mass of a xylene-based low-temperature plasticizer based on 100 parts by mass of a rubber component.
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公开(公告)号：US20160068666A1
公开(公告)日：2016-03-10
申请号：US14832143
申请日：2015-08-21
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Takayuki NAGASE
IPC: C08L9/06
CPC classification number: C08L9/06 , B60C1/0016 , C08L9/00 , C08L33/08 , C08L33/10 , C08L2205/03 , C08L2205/035 , C08L33/06 , C08L33/12 , C08L71/00 , C08L101/00
Abstract: The present invention provides a pneumatic tire that achieves a balanced improvement in wet grip performance, dry grip performance, and abrasion resistance. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing a rubber component, a solventless acrylic resin, and a liquid xylene resin, and having a solventless acrylic resin content of 1 to 60 parts by mass and a liquid xylene resin content of 10 to 100 parts by mass, each per 100 parts by mass of the rubber component.
Abstract translation: 本发明提供一种能够均匀地提高湿抓地性能，干抓地性能和耐磨性的充气轮胎。 本发明涉及一种充气轮胎，其包括由橡胶组合物形成的胎面，所述橡胶组合物含有橡胶组分，无溶剂丙烯酸树脂和液体二甲苯树脂，并且具有1至60质量份的无溶剂丙烯酸树脂含量 相对于100质量份的橡胶成分，液体二甲苯的含量为10〜100质量份。
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8.发明公开公开(公告)号：US20230182420A1
公开(公告)日：2023-06-15
申请号：US17925407
申请日：2021-02-08
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Saki OKUDAIRA , Takayuki NAGASE , Masayuki SAKAMOTO , Yuichi TAKAI , Kotaro HIROSE
IPC: B29C71/00
CPC classification number: B29C71/0009
Abstract: A tire repairing apparatus includes: a tire support portion rotatably supporting a pneumatic tire; and an application mechanism configured to apply an additive that has a softening effect, to a tread portion of the pneumatic tire supported by the tire support portion, thereby causing the additive to permeate into the tread portion
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公开(公告)号：US20190048172A1
公开(公告)日：2019-02-14
申请号：US16056975
申请日：2018-08-07
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Nanaho KAMI , Takayuki NAGASE
Abstract: The present invention provides a pneumatic tire which provides a balanced improvement of fuel economy, abrasion resistance, and performance on ice and snow. Provided is a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including a butadiene polymer having a trans content of 45% by mass or higher and a vinyl content of 20% by mass or lower; silica; a silane coupling agent having two or more sulfur-containing functional groups capable of binding to diene rubbers; and a crosslinking agent having a C3 or higher alkylene group, a polysulfide group bonded to the alkylene group, and a functional group containing a benzene ring.
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公开(公告)号：US20180094126A1
公开(公告)日：2018-04-05
申请号：US15706232
申请日：2017-09-15
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Tatsuhiro TANAKA , Takayuki NAGASE , Keiji IKEDA
IPC: C08L9/06
CPC classification number: C08L9/06 , B60C1/0016 , C08K5/44 , C08K5/548 , C08L2205/02 , C08L2205/06
Abstract: A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire characterized by initiating kneading of a rubber component and a compound of the formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein R1 represents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms, and R2 and R3 together with nitrogen bonded thereto form a succinimide group, a maleimide group or a phthalimide group.)
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