Title:
タイヤ
Document Type and Number:
Japanese Patent JP6704908
Kind Code:
B2
Abstract:
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.
Inventors:
Hideyuki Sakurai
Application Number:
JP2017521702A
Publication Date:
June 03, 2020
Filing Date:
June 02, 2016
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C1/00; C08K3/36; C08L7/00; C08L45/00; C08L57/02; C08L93/04
Domestic Patent References:
| JP2012007145A | ||||
| JP2009242576A | ||||
| JP2011105789A | ||||
| JP2012011897A | ||||
| JP2011084222A |
Foreign References:
| WO2010074286A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kazuyuki Tomita
Kengo Yoshida
Mitsutsugu Sugimura
Kazuyuki Tomita
Kengo Yoshida