Patent ID: 8242236
Filing Date: 2012-08-14
Classification: B60C,B82Y,C08J,C08K,C08L,Y10T

Abstract:
1. A method for producing an elastomeric nanocomposite, the nanocomposite comprising an isobutylene-based polymer and a layered nanofiller, the process comprising the steps of: a) polymerizing isobutylene monomers and multiolefin monomers to produce an isobutylene-based polymer; b) completing at least one mass transfer dependent stage in the process wherein, after completion of the at least one stage and prior to any recovery of the polymer, the polymer is dissolved in a solvent; c) mixing a layered nanofiller in a solvent to create a nanofiller slurry, the filler slurry having not more than 5 wt % water; d) contacting the layered nanofiller slurry and the polymer solvent to obtain a nanocomposite; and e) recovering the nanocomposite.