Title:
タイヤ用ゴム組成物、及びそれを用いた空気入りタイヤ
Document Type and Number:
Japanese Patent JP7174620
Kind Code:
B2
Abstract:
To provide a rubber composition for tires, which can obtain a vulcanization rate equivalent with a case where a thiuram vulcanization accelerator is used and can improve wet grip performance while maintaining breaking strength and wear resistance.SOLUTION: A rubber composition for tires is a hydrogenated copolymer obtained by hydrogenating an aromatic vinyl-conjugate diene copolymer, characterized by that a weight average molecular weight measured by gel permeation chromatography is 300,000 or larger, and a rubber component containing 80 mol% or larger of a hydrogenated copolymer having a hydrogenation rate of the conjugate diene part, a guanidine-based vulcanization accelerator and dithiocarbamate-based vulcanization accelerator are contained at a rate of 0.5 to 4.0 by a mass ratio (guanidine-based vulcanization accelerator/dithiocarbamate-based vulcanization accelerator).SELECTED DRAWING: None
More Like This:
Inventors:
Hiroyuki Takahashi
Application Number:
JP2018245932A
Publication Date:
November 17, 2022
Filing Date:
December 27, 2018
Export Citation:
Assignee:
TOYO TIRE Co., Ltd.
International Classes:
C08L15/00; B60C1/00; C08K3/36; C08K5/31; C08K5/39
Domestic Patent References:
| JP2007186644A | ||||
| JP5262916A |
Foreign References:
| WO2012043856A1 | ||||
| WO2017014282A1 | ||||
| WO2014126184A1 | ||||
| WO2005056615A1 |
Attorney, Agent or Firm:
Masato Tsutada
Tetsushi Nakamura
Katsuyuki Tomita
Yasuomi Arichika
Ryu Maezawa
Waterfowl Masahiro
Tetsushi Nakamura
Katsuyuki Tomita
Yasuomi Arichika
Ryu Maezawa
Waterfowl Masahiro