Title:
RUBBER COMPOSITION FOR TIRE, TREAD RUBBER, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2022/249637
Kind Code:
A1
Abstract:
A problem to be addressed by the present invention is to provide a rubber composition for a tire, said rubber composition being capable of excellently satisfying both low fuel consumption performance and wet-grip performance of a tire. The solution of the present invention is a rubber composition for a tire, the rubber composition being characterized by containing: a rubber component that contains a rubber having an isoprene skeleton and contains a modified styrene-butadiene rubber having a combined styrene content of 30 mass% or greater; a hydrogenated resin that has a softening point higher than 100℃ and has a weight-average molecular weight (g/mol) of greater than 1,200 and no greater than 1,600 in terms of polystyrene; silica; and carbon black, wherein the percentage of silica in the aggregate quantity of the silica and the carbon black is 50 mass% or greater and less than 100 mass%.
Inventors:
ITO NAHOKO (JP)
Application Number:
PCT/JP2022/010134
Publication Date:
December 01, 2022
Filing Date:
March 08, 2022
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; C08C19/25; C08K3/04; C08K3/36; C08L7/00; C08L9/00; C08L15/00; C08L57/00; C08L101/00
Domestic Patent References:
| WO2015076048A1 | 2015-05-28 | |||
| WO2019117168A1 | 2019-06-20 | |||
| WO2015079703A1 | 2015-06-04 | |||
| WO2003046020A1 | 2003-06-05 |
Foreign References:
| JP2020045073A | 2020-03-26 | |||
| JP2019073579A | 2019-05-16 | |||
| JP2021054377A | 2021-04-08 | |||
| JP2014214297A | 2014-11-17 | |||
| JP2007217562A | 2007-08-30 |
Other References:
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
Download PDF:
Previous Patent: RUBBER COMPOSITION FOR TIRE, TREAD RUBBER, AND TIRE
Next Patent: IMAGING ELEMENT AND IMAGING DEVICE
Next Patent: IMAGING ELEMENT AND IMAGING DEVICE