| abstract |
Provided herein are multimodal elastomeric compositions comprising a first polymer fraction and a second polymer fraction and methods of making such compositions. The elastomer composition is preferably ethylene, α-olefin, copolymer or ethylene, α-olefin, polyene terpolymer. The elastomeric composition has a high Mooney viscosity, thereby providing improved elastic properties in the compound and other articles formed from the elastomeric composition. Surprisingly, high Mooney viscosity compositions show much lower than expected viscosity when formulated with an elastomeric compound. Thus, treatment damage typically associated with high Mooney viscosity elastomers is minimized through the use of the elastomeric compositions disclosed herein, and methods of making them. |