Functional diene elastomer and rubber composition
US12168708B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Nov 7, 2019 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Dec 28, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L9/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A diene elastomer and a rubber composition comprising the diene elastomer is provided. The diene elastomer bears pendent imidazole functions in a molar content of at most 4% of the constituent repeating units of the diene elastomer, which diene elastomer is a copolymer of ethylene and of a 1,3-diene comprising ethylene units, the ethylene units representing at least 50 mol % of the constituent repeating units of the diene elastomer, the 1,3-diene being 1,3-butadiene or isoprene. Such an elastomer confers improved uncured properties on the rubber composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.