Rubber composition and a rubber product
US11834569B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Mar 24, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Nov 18, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2001/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a rubber composition comprising 100 phr of one or more diene-based elastomers, 30 phr to 200 phr of a filler, and a benzoxazine which is the reaction of (i) a diphenol comprising two phenol groups and a bridge covalently connecting the two phenol groups, (ii) an aldehyde derivative, and (iii) an amine, wherein the bridge is connected to at least one of the phenol groups at a meta position of said at least one phenol group. The present invention is also directed to a rubber product comprising such a rubber composition and the use of such rubber products in tire components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.