发明公开
EP3305546A4 TIRE
审中-公开
- 专利标题: TIRE
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申请号: EP16802826申请日: 2016-06-02
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公开(公告)号: EP3305546A4公开(公告)日: 2018-06-27
- 发明人: SAKURAI HIDEYUKI
- 申请人: BRIDGESTONE CORP
- 专利权人: BRIDGESTONE CORP
- 当前专利权人: BRIDGESTONE CORP
- 优先权: JP2015113309 2015-06-03
- 主分类号: B60C1/00
- IPC分类号: B60C1/00 ; B60C15/06 ; C08K3/36 ; C08L7/00
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.
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