Rubber composition for a tire tread
US11685822B2 · kind B2 · utility
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3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2017 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/035
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a rubber composition including: per 100 parts by mass of a diene rubber containing a natural rubber and from 10 to 30 mass % of a butadiene rubber, from 50 to 100 parts by mass of a filler containing not less than 20 mass % of carbon black, oil, sulfur (S), and a vulcanization accelerator (A), a mass ratio of the natural rubber to the butadiene rubber (NR/BR) being 0.3 or greater, a compounded ratio of the sulfur to the vulcanization accelerator (S/A) being 0.8 or less, and a total amount of an oil component in the rubber composition containing the oil being from 15 to 25 parts by mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.