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11 条记录 (耗时 0.009 秒)

    TIRE
    3.
    发明公开
    TIRE 审中-公开

    公开(公告)号：EP3305546A4

    公开(公告)日：2018-06-27

    申请号：EP16802826

    申请日：2016-06-02

    申请人： BRIDGESTONE CORP

    发明人： SAKURAI HIDEYUKI

    IPC分类号： B60C1/00 ,  B60C15/06 ,  C08K3/36 ,  C08L7/00

    CPC分类号： B60C1/0016 ,  B60C1/00 ,  B60C15/06 ,  C08K3/36 ,  C08L7/00 ,  C08L9/06 ,  C08L2205/03 ,  Y02T10/862

    摘要： A tire has a rolling resistance that is reduced at both low and high temperatures and that exhibits a small difference between low and high temperatures. The tire includes a tread portion and a pair of bead portions each with a bead core and a bead filler disposed on the radial outside of the bead core. Tread rubber forming the tread portion includes a rubber composition including a rubber component (A) and, per 100 parts by mass of the rubber component (A), 5 to 50 parts by mass of at least one kind of thermoplastic resin (B) selected from the group consisting of C 5 -based resins, C 5 - to C 9 -based resins, C 9 -based resins, terpene-based resins, terpene-aromatic compound-based resins, rosin-based resins, dicyclopentadiene resins, and alkylphenol-based resins, and 20 to 120 parts by mass of a filler (C) including silica. The dynamic storage modulus (E') of the bead filler is 50 MPa or lower.

    RUBBER COMPOSITION PRODUCTION METHOD AND TIRE
    4.
    发明公开
    RUBBER COMPOSITION PRODUCTION METHOD AND TIRE 审中-公开

    公开(公告)号：EP3305834A4

    公开(公告)日：2018-05-09

    申请号：EP16802752

    申请日：2016-05-11

    申请人： BRIDGESTONE CORP

    发明人： SAKURAI HIDEYUKI

    IPC分类号： C08J3/20 ,  C08K3/36 ,  C08L7/00

    CPC分类号： C08J3/20 ,  C08K3/36 ,  C08L7/00 ,  C08L93/04 ,  C08L57/02 ,  C08L61/06

    摘要： This disclosure is to provide a method of manufacturing a rubber composition to obtain a rubber composition that can endow a tire with a lower heat generating property and better ice and snow performance. This disclosure is also to provide a tire with a lower heat generating property and better ice and snow performance. The method of manufacturing a rubber composition comprises kneading a rubber composition that includes a rubber component (A) including 50 mass% or more of natural rubber; at least one kind of thermoplastic resin (B) selected from the group consisting of C 5 -based resins, C 5 - to C 9 -based resins, C 9 -based resins, terpene-based resins, terpene-aromatic compound-based resins, rosin-based resins, dicyclopentadiene resins, and alkylphenol-based resins, 5 parts by mass to 50 parts by mass of the at least one kind of thermoplastic resin (B) per 100 parts by mass of the rubber component being included; a filler (C) including silica, 20 parts by mass to 120 parts by mass of the filler (C) per 100 parts by mass of the rubber component being included; at least one kind of vulcanization accelerator (D) selected from the group consisting of guanidines, sulfenamides, thiazoles, thiourea and diethyl thiourea; a silane coupling agent (E); and a vulcanizing agent (F). The kneading comprises a kneading stage A for kneading the rubber component (A), the thermoplastic resin (B), the filler (C), part or all of the vulcanization accelerator (D), and 2 parts by mass or more of the silane coupling agent (E) per 100 parts by mass of the rubber component, and a kneading stage B, after the kneading stage A, for kneading the vulcanizing agent (F) with a kneaded product prepared by the kneading in the kneading stage A.

    RUBBER TIRE-TREAD COMPOSITION AND PASSENGER-VEHICLE PNEUMATIC TIRE USING SAME
    5.
    发明公开
    RUBBER TIRE-TREAD COMPOSITION AND PASSENGER-VEHICLE PNEUMATIC TIRE USING SAME 有权
    KAUTSCHUKREIFENLAUFFLÄCHENZUSAMMENSETZUNGUND PASSAGIERFAHRZEUUFUFEEPEN DAMIT

    公开(公告)号：EP3150661A4

    公开(公告)日：2017-06-14

    申请号：EP15799783

    申请日：2015-05-29

    申请人： BRIDGESTONE CORP

    发明人： SAKURAI HIDEYUKI

    IPC分类号： C08L7/00 ,  B60C1/00 ,  C08K5/098 ,  C08L9/00 ,  C08L57/02 ,  C08L93/04

    CPC分类号： C08L9/00 ,  B60C1/0016 ,  C08L7/00 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2205/035

    摘要： There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 45% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) one or more C5/C9-based petroleum resins selected from the group consisting of aromatic-modified aliphatic petroleum resins and aliphatic-modified aromatic petroleum resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass of, both based on 100 parts by mass of the rubber component.

    摘要翻译： 提供了一种橡胶轮胎 - 胎面组合物，其包含（A）橡胶组分，该橡胶组分包含45质量％或更多的一种或多种选自天然橡胶和合成异戊二烯橡胶的异戊二烯类橡胶，和（B） （C）脂肪酸金属盐的含量为5〜50质量份的选自芳香族改性脂肪族石油树脂和脂肪族改性芳香族石油树脂中的更多​​的C5 / C9系石油树脂， 相对于100质量份的橡胶成分均为0.5〜10质量份。

    TIRE
    6.
    发明公开
    TIRE 审中-公开

    公开(公告)号：EP3279012A4

    公开(公告)日：2018-04-25

    申请号：EP16771789

    申请日：2016-03-30

    申请人： BRIDGESTONE CORP

    发明人： TOMIDA TATSUYA ,  SAKURAI HIDEYUKI

    IPC分类号： B60C11/13 ,  B60C1/00 ,  B60C5/00 ,  B60C11/00 ,  B60C11/03 ,  C08L9/00 ,  C08L9/06

    CPC分类号： B60C1/00 ,  B60C1/0016 ,  B60C5/00 ,  B60C11/0008 ,  B60C11/03 ,  B60C11/13 ,  B60C11/1323 ,  B60C2011/0341 ,  B60C2011/0353 ,  C08L9/00 ,  C08L9/06

    摘要： This disclosure aims to provide a tire having excellent braking performance on dry road surface and on wet road surface, and having excellent steering stability. This disclosure is a tire comprising a tread 10 formed by using a rubber composition of which a tan ´ at 0°C is 0.25 to 0.55, a difference between a tan ´ at 30°C and a tan ´ at 60°C is -0.02 to 0.07, and a dynamic storage modulus at a dynamic strain of 1% and 0°C is 4 MPa to 20 MPa, wherein: the tread 10 has a plurality of circumferential grooves extending continuously in a tire circumferential direction C, the circumferential grooves including circumferential main grooves 21a, 21b, 22 with a cross-sectional area in a tire width direction W of 10 mm 2 or more, and a groove width Lb at a 95% groove depth position with a groove depth of a groove bottom as 100% of at least the circumferential groove 21a located on an outermost side when mounted to a vehicle among the circumferential main grooves 21a, 21b, 22 being 25% to 60% with respect to a groove width Lt on a tread surface.

    RUBBER TIRE-TREAD COMPOSITION AND PASSENGER-VEHICLE PNEUMATIC TIRE USING SAME
    8.
    发明公开
    RUBBER TIRE-TREAD COMPOSITION AND PASSENGER-VEHICLE PNEUMATIC TIRE USING SAME 审中-公开
    KAUTSCHUKREIFENLAUFFLÄCHENZUSAMMENSETZUNGUND PASSAGIERFAHRZEUUFUFEEPEN DAMIT

    公开(公告)号：EP3150660A4

    公开(公告)日：2017-05-31

    申请号：EP15799541

    申请日：2015-05-29

    申请人： BRIDGESTONE CORP

    发明人： SAKURAI HIDEYUKI

    IPC分类号： C08L7/00 ,  B60C1/00 ,  C08K5/098 ,  C08L9/00 ,  C08L57/02

    CPC分类号： C08L7/00 ,  B60C1/0016 ,  C08L9/00 ,  C08L2205/03

    摘要： There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 30% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) at least one resin selected from the group consisting of rosin acid resins, C9-based petroleum resins, alkylphenol formaldehyde resins and terpene phenol resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass of, both based on 100 parts by mass of the rubber component.

    摘要翻译： 提供了一种橡胶轮胎 - 胎面组合物，其包含（A）橡胶组分，该橡胶组分包含30质量％或更高的一种或多种选自天然橡胶和合成异戊二烯橡胶的异戊二烯系橡胶，和（B） 一种树脂，其选自松香酸树脂，C9基石油树脂，烷基酚甲醛树脂和萜烯酚树脂，其量为5至50质量份，和（C）脂肪酸金属盐，其量为0.5 相对于100质量份的橡胶成分均为10质量份。