Patent ID: 7867433

Claim:
A method for making a crosslinked elastomeric article, comprising: blending an elastomeric composition comprising: from about 60 to about 95 wt % of at least one propylene-based polymer comprising propylene derived units and one or more dienes, the propylene-based polymer having a triad tacticity of from 50% to 99% and a heat of fusion of less than 80 J/g; from about 0.1 to about 15 wt % of at least one component selected from the group consisting of multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, and allyl isocyanurate; and from about 0.1 to about 5 wt % of at least one component selected from the group consisting of hindered phenols, phosphates, and hindered amines; extruding the composition; and crosslinking the extruded polymer using electron beam radiation having an e-beam dose of 200 kGy or less.