Tire tread reinforced with a silica of very low specific surface area
US7491767B2 · kind B2 · utility
75Cited by
27References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A tire tread incorporating an elastomeric composition reinforced with silica, based on at least (phr=parts by weight per hundred parts of diene elastomer): Preferably, this LS silica furthermore has a disagglomeration rate α greater than 5×10−3 μm−1/min (measured in the ultrasound disagglomeration test). Compared with a conventional tread for “Green Tires” reinforced with a silica of higher specific surface area, the tread of the invention has an improved compromise of performances in terms of wear resistance, rolling resistance, grip and drift thrust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.