Title:
RUBBER COMPOSITION FOR TIRES
Document Type and Number:
WIPO Patent Application WO/2022/019165
Kind Code:
A1
Abstract:
Provided is a rubber composition for tires which contains a large amount of silica and which exhibits excellent on-ice performance, wet grip performance and molding processing properties. This rubber composition for tires is characterized by: being obtained by blending 100 parts by mass of a diene-based rubber containing 25-50 mass% of a butadiene rubber with 50 parts by mass or more of a plasticizer component, 120-180 parts by mass of silica, M1 parts by mass of 3-octanoylthio-1-propyltriethoxysilane and M2 parts by mass of alkylsilane; and the total amount (M1+M2) of the 3-octanoylthio-1-propyltriethoxysilane and the alkylsilane being 5-10 mass% relative to the mass of the silica, and the ratio [M2/(M1+M2)] of the alkylsilane relative to the total amount of the 3-octanoylthio-1-propyltriethoxysilane and the alkylsilane being 0.10-0.40.
Inventors:
IIZUKA MIYUKI (JP)
Application Number:
PCT/JP2021/026137
Publication Date:
January 27, 2022
Filing Date:
July 12, 2021
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L9/00; B60C1/00; B60C11/03; C08K3/36; C08K5/54; C08K5/548
Foreign References:
| JP2019218481A | 2019-12-26 | |||
| JP2019089869A | 2019-06-13 | |||
| JP2019199523A | 2019-11-21 | |||
| JP2020029474A | 2020-02-27 | |||
| JP2021020615A | 2021-02-18 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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