Triethylamine functionalized elastomer in barrier applications
US8765863B2 · kind B2 · utility
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27References
23Claims
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Key dates
| Filing date | Nov 14, 2007 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Nov 14, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/346
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A halogenated elastomer partially functionalized with triethylamine, in a mixture with fiiier and a cure package, suitable for use as an air barrier in an innertube or tire innerliner, is disclosed. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefm derived units, para-alkylstyrene derived units, para-(haloalkylstyrene) derived units, and para-(triethylammoniumalkylstyrene) derived units. The Mooney viscosity of the elastomer can be controlled by the degree of triethylamine functionalization. Also disclosed is a method for making an article using the tri ethy iamine-functionalized elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.