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    TIRE
    1.
    发明申请
    TIRE 有权

    公开(公告)号：US20220251347A1

    公开(公告)日：2022-08-11

    申请号：US17617375

    申请日：2020-05-29

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Yoshihiko KOMORI ,  Tatsuya MIYAZAKI

    IPC: C08L9/06 ,  B60C1/00

    Abstract: Provided is a tire which provides improved overall performance in terms of wet grip performance and abrasion resistance. Included is a tire including a tread containing a rubber composition, the rubber composition containing at least one rubber component and at least one silane coupling agent having a sulfur content of 10% by mass or higher, the rubber composition having an ash content of 36% by mass or higher, the rubber composition having a sulfur content of 1.0% by mass or lower when measured after acetone extraction.

    TIRE
    2.
    发明申请
    TIRE 有权

    公开(公告)号：US20210268836A1

    公开(公告)日：2021-09-02

    申请号：US17253210

    申请日：2019-03-22

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Tatsuya MIYAZAKI

    IPC: B60C1/00 ,  B60C11/12 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06

    Abstract: An object of the present invention is to provide a tire having a good mold releasability even though the tire has a sipe with a complicated shape such as a three-dimensional shape and with abrasion resistance and wet grip performance maintained or improved. The tire comprises a cap tread, wherein the cap tread is composed of a rubber composition comprising 0.20 parts by mass or more of C40-C70 branched alkane based on 100 parts by mass of a rubber component and having 0.16 or less of tan δ at 30° C., and wherein the cap tread has a sipe with a three-dimensional shape or a sipe with a portion of a maximum cross-sectional area inside a surface of the tread, and wherein the maximum cross-sectional area is 1.1 times or more the minimum cross-sectional area.

    RUBBER COMPOSITION
    3.
    发明申请
    RUBBER COMPOSITION 审中-公开

    公开(公告)号：US20200148861A1

    公开(公告)日：2020-05-14

    申请号：US16604039

    申请日：2018-04-11

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Tatsuya MIYAZAKI

    IPC: C08L9/06 ,  B60C1/00

    Abstract: A rubber composition comprising a rubber component and 0.3 to 3 parts by mass of a branched alkane having 40 to 70 carbon atoms, 1.2 parts by mass or less of a linear alkane having 45 or more carbon atoms and 0.1 to 100 parts by mass of a hydrocarbon resin having a weight-average molecular weight of 300 to 15,000 based on 100 parts by mass of the rubber component.

    RUBBER COMPOSITION
    4.
    发明申请
    RUBBER COMPOSITION 审中-公开

    公开(公告)号：US20180362741A1

    公开(公告)日：2018-12-20

    申请号：US15741483

    申请日：2016-07-25

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Tatsuya MIYAZAKI

    IPC: C08L15/02 ,  C08L23/22 ,  C08L91/00 ,  C08K3/04 ,  C08K3/22 ,  B29D30/06 ,  B60C1/00

    Abstract: Provided are a rubber composition excellent in air permeation resistance, moldability and durability, a pneumatic tire having an inner liner composed of the rubber composition, and a bladder for vulcanization of a tire composed of the rubber composition. The rubber composition of the present invention comprises a rubber component and a terpene-based resin having a glass-transition temperature of 60° C. or lower, in which an air barrier property index indicated by formula (1) below is 110 or more: (Air Barrier Property Index)=(Air Permeation Amount of a Rubber Composition in Comparative Example 1)/(Air Permeation Amount of the Rubber Composition)×100  Formula (1):

    PNEUMATIC TIRE
    6.
    发明申请
    PNEUMATIC TIRE 审中-公开

    公开(公告)号：US20170327670A1

    公开(公告)日：2017-11-16

    申请号：US15531094

    申请日：2015-12-09

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Tatsuya MIYAZAKI ,  Kensuke WASHIZU

    IPC: C08L9/06 ,  B60C1/00

    Abstract: The present invention provides a pneumatic tire including a tread formed from a rubber composition that can simultaneously highly improve initial grip performance and stable grip performance during the middle and late periods of running, and further can reduce the occurrence of blowing even during high-temperature running. The present invention relates to a pneumatic tire including a tread, the tread being formed from a rubber composition containing a diene rubber, the rubber composition further containing a hydrogenated terpene aromatic resin obtained by hydrogenation of the double bonds of a terpene aromatic resin, the hydrogenated terpene aromatic resin having a degree of hydrogenation of double bonds of 5-100%, a hydroxyl value of 20 mg KOH/g or less, and a softening point of 116-180° C., the hydrogenated terpene aromatic resin being present in an amount of 1-50 parts by mass per 100 parts by mass of the diene rubber.

    TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE
    7.
    发明申请
    TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE 有权
    轮胎橡胶组合物和气动轮胎

    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。

    RUBBER COMPOSITIONS FOR BEAD APEX, SIDEWALL PACKING, BASE TREAD, BREAKER CUSHION, STEEL CORD TOPPING, STRIP ADJACENT TO STEEL CORDS, TIE GUM, AND SIDEWALL, AND PNEUMATIC TIRES
    8.
    发明申请
    RUBBER COMPOSITIONS FOR BEAD APEX, SIDEWALL PACKING, BASE TREAD, BREAKER CUSHION, STEEL CORD TOPPING, STRIP ADJACENT TO STEEL CORDS, TIE GUM, AND SIDEWALL, AND PNEUMATIC TIRES 有权
    用于珠子的橡胶组合物，小型包装，底座，断路器，钢丝绳，钢带，钢筋，气门和气动轮胎

    公开(公告)号：US20140124113A1

    公开(公告)日：2014-05-08

    申请号：US14073926

    申请日：2013-11-07

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

    Inventor： Tatsuya MIYAZAKI ,  Masanobu NAKAMURA

    IPC: C08K13/02 ,  B60C1/00

    CPC classification number: C08K13/02 ,  B60C1/00 ,  B60C1/0025 ,  C08K5/175 ,  C08K5/18 ,  Y02T10/862 ,  Y10T152/10495 ,  Y10T152/1081 ,  C08K3/04 ,  C08L7/00

    Abstract: The present invention provides a rubber composition that improves in terms of the fuel economy of a rubber composition containing an isoprene-based rubber and also offers favorable durability and favorable processability or adhesion to steel cords, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a bead apex, sidewall packing, base tread, or breaker cushion, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of sulfur; and a specific amount of a compound represented by formula (I) below. The present invention also relates to a rubber composition for a steel cord topping, strip adjacent to steel cords, or tie gum, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of an organic acid cobalt salt; and a specific amount of a compound represented by the formula (I).

    Abstract translation: 本发明提供了一种在包含异戊二烯类橡胶的橡胶组合物的燃料经济性方面改进的橡胶组合物，并且还提供了良好的耐久性和对钢丝帘线的良好的加工性或粘合性，以及由橡胶组合物形成的充气轮胎。 本发明涉及一种用于胎圈三角胶，胎侧密封垫，基底胎面或破碎垫的橡胶组合物，包括：特定的橡胶组分; 特定量的特定炭黑; 一定量的硫磺; 和特定量的由下式（I）表示的化合物。 本发明还涉及一种用于钢帘线顶部，邻近钢帘线或连结胶的条带的橡胶组合物，包括：特定的橡胶组分; 特定量的特定炭黑; 特定量的有机酸钴盐; 和特定量的由式（I）表示的化合物。

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