Pneumatic tire
US10626254B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention is directed to a pneumatic tire comprising a vulcanizable rubber composition, the vulcanizable rubber composition comprising: from 75 to 85 phr of a styrene-butadiene rubber having a bound styrene content of from 30 to 50 percent by weight, a vinyl 1,2 content of from 10 to 30 percent by weight based on the rubber weight, and a Tg ranging from −40 C to −20 C; from 0 to 25 phr of natural rubber or synthetic polyisoprene; from 0 to 20 phr of cis-1,4 polybutadiene having a Tg of from −110° C. to −90° C.; from 100 to 150 phr of silica; from 20 to 40 phr of a combination resin comprising a polyterpene resin, an alkylphenol formaldehyde resin, and a rosin acid; from 30 to 60 phr of oil; and from 5 to 25 phr of a sulfur containing organosilicon compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.