Rubber compositions with reduced graphene oxide
US11518856B2 · kind B2 · utility
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Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Nov 14, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/011
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Rubber components of a tire comprising a diene elastomer and at least 1 phr of reduced graphene oxide nanoparticles having a specific surface area of at least 700 m2/g, an oxygen content of no more than 6 at %, and a ratio of non-aromaticity to aromaticity ID/IG of at least 0.7 as determined by Raman spectroscopy. Methods of preparing such rubber compositions in an internal mixer for achieving good distribution and dispersion are also included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.