Title:
タイヤ用ゴム組成物および空気入りタイヤ
Document Type and Number:
Japanese Patent JP7006425
Kind Code:
B2
Abstract:
A pneumatic tire includes 100 parts by mass of a rubber component including from 25-30 parts by mass of a diene rubber having a glass transition temperature of from −20° C. to −40° C., having a tertiary amine having an epoxy group as a modifying group, and a vinyl content from 35-45 mass %, 20-35 parts by mass of a diene rubber obtained by reacting a polyorganosiloxane to an active terminal of a diene-based polymer chain having the active terminal formed by making a polymer block A continuous with a polymer block B, the polymer block A including 80-95 mass % of isoprene and 5-20 mass % of an aromatic vinyl, having an active terminal, and having a weight average molecular weight from 500-15,000, the polymer block B including 1,3-butadiene and an aromatic vinyl and an active terminal, the vinyl content lower by from 5-25 mass % than that of the first conjugated diene polymer.
Inventors:
Ryosuke Takagi
Application Number:
JP2018054849A
Publication Date:
February 10, 2022
Filing Date:
March 22, 2018
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B60C1/00; C08L15/00; B60C11/03; B60C11/12; C08K3/36; C08L53/02
Domestic Patent References:
| JP2016169359A | ||||
| JP201647886A | ||||
| JP107844A |
Foreign References:
| WO2017138553A1 |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Daytime Takayoshi
Sakazawa Masao
Daytime Takayoshi
Sakazawa Masao