Butyl rubber containing allylic alcohol
US10822439B2 · kind B2 · utility
0Cited by
8References
20Claims
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Key dates
| Filing date | Dec 14, 2016 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jul 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing an allylic alcohol functionalized butyl rubber involves contacting an epoxidized butyl rubber with benzoic acid, an analogue of benzoic acid or a C1-C7 alkanoic acid. The process and a polymer compound comprising the epoxidized butyl rubber and the benzoic acid, analogue of benzoic acid or a C1-C7 alkanoic acid provide a cost effective route to a polar functionalized butyl rubber, particularly to butyl rubber comprising allylic alcohol functional groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.