Title:
RUBBER COMPOSITION FOR TIRE, TREAD, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2023/100458
Kind Code:
A1
Abstract:
Provided are: a rubber composition for a tire, the composition being capable of producing a vulcanized rubber having excellent abrasion resistance and rupture strength as well as great workability; and a tread and a tire having excellent abrasion resistance and rupture strength. The rubber composition for tires comprises a rubber component and carbon black. The carbon black is such that: the compressed oil absorption amount is 105 mL/100 g to 122 mL/100g; the specific surface area of cetyltrimethylammonium bromide is greater than 130 m2/g but not greater than 153 m2/g; ΔD50/Dst is 0.75-0.88; and the oil absorption amount is 120 mL/100 g or greater but less than 143 mL/100 g; the difference between the compressed oil absorption amount and the oil absorption amount is 11 mL/100 g or greater but less than 33 mL/100 g; and the hydrogen generation amount is 2,300 mass ppm or greater but less than 3,500 mass ppm.
Inventors:
TAKAHASHI YUKI (JP)
Application Number:
PCT/JP2022/036145
Publication Date:
June 08, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L21/00; B60C1/00; C08K3/04
Foreign References:
| JP2020019834A | 2020-02-06 | |||
| JP2017114981A | 2017-06-29 | |||
| JP2021095549A | 2021-06-24 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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