Title:
RUBBER COMPOSITION AND TIRE MADE THEREFROM
Document Type and Number:
WIPO Patent Application WO/2023/079865
Kind Code:
A1
Abstract:
The present invention discloses a rubber composition that includes rubber, filler, a sulfur-containing silane coupling agent, and a vulcanization accelerator, the rubber including 30-60 parts by mass of NR and 40-70 parts by mass of BR, the filler including carbon black and silica, the CTAB specific surface area of the carbon black and the silica being 60-160 m2/g and 60-100 m2/g, respectively, the filler content being 55-75 parts by mass per 100 parts by mass of rubber, the amount of silica compounded with the filler (silica ratio) being 10 mass% or greater, and the amount of vulcanization accelerator compounded being 2.5-8 mass% relative to the silica.
Inventors:
KITAMURA TAKAMASA (JP)
KARASAWA YUICHIRO (JP)
KARASAWA YUICHIRO (JP)
Application Number:
PCT/JP2022/036153
Publication Date:
May 11, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L9/00; B60C1/00; B60C15/06; C08K3/06; C08K3/36; C08K5/36; C08K5/44; C08L7/00
Domestic Patent References:
| WO2013077021A1 | 2013-05-30 | |||
| WO2013031340A1 | 2013-03-07 |
Foreign References:
| JP2010242023A | 2010-10-28 | |||
| JP2009040853A | 2009-02-26 | |||
| JP2013067736A | 2013-04-18 | |||
| CN109721773A | 2019-05-07 |
Attorney, Agent or Firm:
NODA, Shigeru (JP)
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