Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2021/124637
Kind Code:
A1
Abstract:
Provided is a tire having exceptional grip on wet roads and low rolling resistance. A tire in which is used a rubber composition including: a rubber component that contains rubber having an isoprene skeleton and amino-alkoxysilane-modified styrene-butadiene rubber having a bonded styrene content of 15 mass% or less; a filler that contains silica having a nitrogen adsorption specific surface area (as determined by the BET method) that is equal to or greater than 80 m2/g and less than 130 m2/g, the amount of the filler used being 40-125 parts by mass relative to 100 parts by mass of the rubber component; and a hydrogenated resin for which the softening point is higher than 110°C, the weight-average molecular weight in terms of polystyrene is 200-1200, and the amount used is 5-50 parts by mass relative to 100 parts by mass of the rubber component.
Inventors:
MIENO KANA (JP)
OGASAWARA TAKUYA (JP)
OGASAWARA TAKUYA (JP)
Application Number:
PCT/JP2020/036870
Publication Date:
June 24, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; C08K3/04; C08K3/36; C08L7/00; C08L15/00; C08L57/02; C08L101/00
Domestic Patent References:
| WO2013099325A1 | 2013-07-04 | |||
| WO2019116804A1 | 2019-06-20 | |||
| WO2003046020A1 | 2003-06-05 |
Foreign References:
| JP2010111753A | 2010-05-20 | |||
| JP2019006880A | 2019-01-17 | |||
| JP2018123260A | 2018-08-09 | |||
| JP2007217562A | 2007-08-30 |
Other References:
R.R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
See also references of EP 4079533A4
See also references of EP 4079533A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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