| abstract |
A dynamically vulcanized alloy contains at least one isobutylene-based elastomer, at least one thermoplastic resin, a cure system, and a lubricant system. The lubricant system is comprised of a metal organic salt and a fatty acid having a phr ratio range of metal organic salt to fatty acid of 0.75:1 to 10:1. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin. The alloy may be formed into blown films or extruded cast sheets and is useful in various applications, including tire innerliners and hose layers, where impermeability characteristics are desired for either the particular layer or the final article. |