Tire comprising a composition essentially free of guanidine derivative and comprising a hydroxyalkylpiperazine
US9522571B2 · kind B2 · utility
2Cited by
26References
40Claims
0Family size
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Key dates
| Filing date | Dec 17, 2012 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | May 8, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/019
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A tire comprises a rubber composition based on at least one diene elastomer, a reinforcing filler predominantly comprising silica, a crosslinking system, and a hydroxyalkylpiperazine of formula (I):in which R1 represents a linear or branched alkyl group comprising from 1 to 18 carbon atoms, R2 represents a linear or branched alkylene group comprising from 1 to 18 carbon atoms, it being understood that R1 and R2 can bear one or more additional hydroxyl groups. The rubber composition is essentially devoid of guanidine derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.