Title:
CROSSLINKED RUBBER AND TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/063027
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a crosslinked rubber in which the amount of metal oxide is reduced while also suppressing vulcanization reversion due to over-vulcanization; and a tire using said crosslinked rubber. Provided as a solution is a crosslinked rubber obtained by crosslinking a rubber composition that includes: a rubber component which includes not less than 65 mass% of a rubber that has an isoprene skeleton; a filler; at least one compound (A) selected from among quaternary ammonium salts, phosphates, guanidine-based compounds, sulfonium salts, and amine-based compounds; and a metal oxide. The filler is at least one selected from among carbon black and silica. The contained amount of silica is not less than 0 parts by mass but less than 20 parts by mass per 100 parts by mass of rubber component. The contained amount of the compound (A) is more than 0.5 parts by mass but not more than 2 parts by mass per 100 parts by mass of rubber component. The contained amount of metal oxide is not more than 4 parts by mass per 100 parts by mass of rubber component.
Inventors:
WADA YUKI (JP)
Application Number:
PCT/JP2023/033780
Publication Date:
March 28, 2024
Filing Date:
September 15, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L7/00; B60C1/00; C08K3/22; C08K5/19; C08K13/02
Domestic Patent References:
| WO2015159934A1 | 2015-10-22 |
Foreign References:
| JPH02227444A | 1990-09-10 | |||
| JP2020105269A | 2020-07-09 | |||
| JP2022530060A | 2022-06-27 | |||
| JP2021501244A | 2021-01-14 | |||
| CN103304860A | 2013-09-18 | |||
| JPH03287640A | 1991-12-18 | |||
| JPS604541A | 1985-01-11 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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