Tire belt incorporating an antioxidant agent
US8763660B2 · kind B2 · utility
2Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2007 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/1081
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Tire belt comprising a rubber composition based on at least one isoprene elastomer, a reinforcing filler, a crosslinking system and an antioxidant agent, characterized in that said antioxidant agent comprises a 4,4′-bis(alkylamino)triphenylamine corresponding to the formula (I):in which R1 and R2, which are identical or different, each represent a linear or branched alkyl group having from 1 to 12 carbon atoms or a cycloalkyl group having from 5 to 8 carbon atoms. Such an antioxidant gives the belt of the invention a better long-term resistance to fatigue and to crack propagation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.