Pneumatic tire
US12017479B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Apr 17, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pneumatic tire having dry grip performance, wet grip performance, low rolling resistance, and performance on snow, formed by: molding a rubber composition for a tire, the rubber composition containing: from 70 to 150 parts by mass of silica per 100 parts by mass of a diene rubber formed from two types of modified styrene butadiene rubbers and a butadiene rubber, and oil, and from 5 to 15 mass % of 3-octanoylthio-1-propyltriethoxysilane with respect to a mass of the silica, the diene rubber containing 75 mass % or greater and less than 100 mass % total of the two types of modified styrene butadiene rubbers and greater than 0 mass % and 25 mass % or less of the butadiene rubber, a total amount of oil component containing the oil being from 25 to 45 mass % of a total mass of filler containing the silica, and a glass transition temperature being −50° C. or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.